6752 lines
194 KiB
V
6752 lines
194 KiB
V
// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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module c
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import os
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import strings
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import v.ast
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import v.pref
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import v.token
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import v.util
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import v.depgraph
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const (
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// NB: some of the words in c_reserved, are not reserved in C,
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// but are in C++, or have special meaning in V, thus need escaping too.
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c_reserved = ['auto', 'break', 'calloc', 'case', 'char', 'class', 'const', 'continue',
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'default', 'delete', 'do', 'double', 'else', 'enum', 'error', 'exit', 'export', 'extern',
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'float', 'for', 'free', 'goto', 'if', 'inline', 'int', 'link', 'long', 'malloc', 'namespace',
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'new', 'panic', 'register', 'restrict', 'return', 'short', 'signed', 'sizeof', 'static',
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'struct', 'switch', 'typedef', 'typename', 'union', 'unix', 'unsigned', 'void', 'volatile',
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'while', 'template', 'stdout', 'stdin', 'stderr']
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c_reserved_map = string_array_to_map(c_reserved)
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// same order as in token.Kind
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cmp_str = ['eq', 'ne', 'gt', 'lt', 'ge', 'le']
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// when operands are switched
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cmp_rev = ['eq', 'ne', 'lt', 'gt', 'le', 'ge']
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)
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fn string_array_to_map(a []string) map[string]bool {
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mut res := map[string]bool{}
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for x in a {
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res[x] = true
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}
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return res
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}
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struct Gen {
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pref &pref.Preferences
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module_built string
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mut:
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table &ast.Table
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out strings.Builder
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cheaders strings.Builder
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includes strings.Builder // all C #includes required by V modules
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typedefs strings.Builder
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typedefs2 strings.Builder
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type_definitions strings.Builder // typedefs, defines etc (everything that goes to the top of the file)
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definitions strings.Builder // typedefs, defines etc (everything that goes to the top of the file)
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inits map[string]strings.Builder // contents of `void _vinit/2{}`
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cleanups map[string]strings.Builder // contents of `void _vcleanup(){}`
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gowrappers strings.Builder // all go callsite wrappers
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stringliterals strings.Builder // all string literals (they depend on tos3() beeing defined
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auto_str_funcs strings.Builder // function bodies of all auto generated _str funcs
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comptime_defines strings.Builder // custom defines, given by -d/-define flags on the CLI
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pcs_declarations strings.Builder // -prof profile counter declarations for each function
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hotcode_definitions strings.Builder // -live declarations & functions
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embedded_data strings.Builder // data to embed in the executable/binary
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shared_types strings.Builder // shared/lock types
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shared_functions strings.Builder // shared constructors
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channel_definitions strings.Builder // channel related code
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options_typedefs strings.Builder // Option typedefs
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options strings.Builder // `Option_xxxx` types
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json_forward_decls strings.Builder // json type forward decls
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enum_typedefs strings.Builder // enum types
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sql_buf strings.Builder // for writing exprs to args via `sqlite3_bind_int()` etc
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file &ast.File
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fn_decl &ast.FnDecl // pointer to the FnDecl we are currently inside otherwise 0
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last_fn_c_name string
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tmp_count int // counter for unique tmp vars (_tmp1, tmp2 etc)
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tmp_count2 int // a separate tmp var counter for autofree fn calls
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is_c_call bool // e.g. `C.printf("v")`
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is_assign_lhs bool // inside left part of assign expr (for array_set(), etc)
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discard_or_result bool // do not safe last ExprStmt of `or` block in tmp variable to defer ongoing expr usage
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is_void_expr_stmt bool // ExprStmt whos result is discarded
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is_arraymap_set bool // map or array set value state
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is_amp bool // for `&Foo{}` to merge PrefixExpr `&` and StructInit `Foo{}`; also for `&byte(0)` etc
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is_sql bool // Inside `sql db{}` statement, generating sql instead of C (e.g. `and` instead of `&&` etc)
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is_shared bool // for initialization of hidden mutex in `[rw]shared` literals
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is_vlines_enabled bool // is it safe to generate #line directives when -g is passed
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arraymap_set_pos int // map or array set value position
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vlines_path string // set to the proper path for generating #line directives
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optionals []string // to avoid duplicates TODO perf, use map
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chan_pop_optionals []string // types for `x := <-ch or {...}`
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chan_push_optionals []string // types for `ch <- x or {...}`
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cur_lock ast.LockExpr
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mtxs string // array of mutexes if the `lock` has multiple variables
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labeled_loops map[string]&ast.Stmt
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inner_loop &ast.Stmt
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shareds []int // types with hidden mutex for which decl has been emitted
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inside_ternary int // ?: comma separated statements on a single line
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inside_map_postfix bool // inside map++/-- postfix expr
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inside_map_infix bool // inside map<</+=/-= infix expr
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inside_map_index bool
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inside_opt_data bool
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inside_if_optional bool
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ternary_names map[string]string
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ternary_level_names map[string][]string
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stmt_path_pos []int // positions of each statement start, for inserting C statements before the current statement
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skip_stmt_pos bool // for handling if expressions + autofree (since both prepend C statements)
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right_is_opt bool
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is_autofree bool // false, inside the bodies of fns marked with [manualfree], otherwise === g.pref.autofree
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indent int
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empty_line bool
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is_test bool
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assign_op token.Kind // *=, =, etc (for array_set)
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defer_stmts []ast.DeferStmt
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defer_ifdef string
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defer_profile_code string
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str_types []string // types that need automatic str() generation
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threaded_fns []string // for generating unique wrapper types and fns for `go xxx()`
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waiter_fns []string // functions that wait for `go xxx()` to finish
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array_fn_definitions []string // array equality functions that have been defined
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map_fn_definitions []string // map equality functions that have been defined
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struct_fn_definitions []string // struct equality functions that have been defined
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sumtype_fn_definitions []string // sumtype equality functions that have been defined
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alias_fn_definitions []string // alias equality functions that have been defined
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auto_fn_definitions []string // auto generated functions defination list
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anon_fn_definitions []string // anon generated functions defination list
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sumtype_definitions map[int]bool // `_TypeA_to_sumtype_TypeB()` fns that have been generated
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is_json_fn bool // inside json.encode()
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json_types []string // to avoid json gen duplicates
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pcs []ProfileCounterMeta // -prof profile counter fn_names => fn counter name
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is_builtin_mod bool
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hotcode_fn_names []string
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embedded_files []ast.EmbeddedFile
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sql_i int
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sql_stmt_name string
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sql_bind_name string
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sql_idents []string
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sql_idents_types []ast.Type
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sql_left_type ast.Type
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sql_table_name string
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sql_fkey string
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sql_parent_id string
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sql_side SqlExprSide // left or right, to distinguish idents in `name == name`
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inside_vweb_tmpl bool
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inside_return bool
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inside_or_block bool
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strs_to_free0 []string // strings.Builder
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// strs_to_free []string // strings.Builder
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inside_call bool
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has_main bool
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inside_const bool
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comp_for_method string // $for method in T.methods {}
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comp_for_field_var string // $for field in T.fields {}; the variable name
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comp_for_field_value ast.StructField // value of the field variable
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comp_for_field_type ast.Type // type of the field variable inferred from `$if field.typ is T {}`
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comptime_var_type_map map[string]ast.Type
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// tmp_arg_vars_to_free []string
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// autofree_pregen map[string]string
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// autofree_pregen_buf strings.Builder
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// autofree_tmp_vars []string // to avoid redefining the same tmp vars in a single function
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called_fn_name string
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cur_mod ast.Module
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is_js_call bool // for handling a special type arg #1 `json.decode(User, ...)`
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is_fn_index_call bool
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// nr_vars_to_free int
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// doing_autofree_tmp bool
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inside_lambda bool
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prevent_sum_type_unwrapping_once bool // needed for assign new values to sum type
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// used in match multi branch
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// TypeOne, TypeTwo {}
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// where an aggregate (at least two types) is generated
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// sum type deref needs to know which index to deref because unions take care of the correct field
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aggregate_type_idx int
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returned_var_name string // to detect that a var doesn't need to be freed since it's being returned
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branch_parent_pos int // used in BranchStmt (continue/break) for autofree stop position
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timers &util.Timers = util.new_timers(false)
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force_main_console bool // true when [console] used on fn main()
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as_cast_type_names map[string]string // table for type name lookup in runtime (for __as_cast)
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obf_table map[string]string
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// main_fn_decl_node ast.FnDecl
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expected_cast_type ast.Type // for match expr of sumtypes
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defer_vars []string
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anon_fn bool
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}
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pub fn gen(files []&ast.File, table &ast.Table, pref &pref.Preferences) string {
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// println('start cgen2')
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mut module_built := ''
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if pref.build_mode == .build_module {
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for file in files {
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if file.path.contains(pref.path)
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&& file.mod.short_name == pref.path.all_after_last(os.path_separator).trim_right(os.path_separator) {
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module_built = file.mod.name
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break
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}
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}
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}
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mut timers_should_print := false
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$if time_cgening ? {
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timers_should_print = true
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}
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mut g := Gen{
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file: 0
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out: strings.new_builder(512000)
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cheaders: strings.new_builder(15000)
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includes: strings.new_builder(100)
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typedefs: strings.new_builder(100)
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typedefs2: strings.new_builder(100)
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type_definitions: strings.new_builder(100)
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definitions: strings.new_builder(100)
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gowrappers: strings.new_builder(100)
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stringliterals: strings.new_builder(100)
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auto_str_funcs: strings.new_builder(100)
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comptime_defines: strings.new_builder(100)
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pcs_declarations: strings.new_builder(100)
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hotcode_definitions: strings.new_builder(100)
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embedded_data: strings.new_builder(1000)
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options_typedefs: strings.new_builder(100)
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options: strings.new_builder(100)
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shared_types: strings.new_builder(100)
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shared_functions: strings.new_builder(100)
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channel_definitions: strings.new_builder(100)
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json_forward_decls: strings.new_builder(100)
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enum_typedefs: strings.new_builder(100)
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sql_buf: strings.new_builder(100)
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table: table
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pref: pref
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fn_decl: 0
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is_autofree: true
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indent: -1
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module_built: module_built
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timers: util.new_timers(timers_should_print)
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inner_loop: &ast.EmptyStmt{}
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}
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g.timers.start('cgen init')
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for mod in g.table.modules {
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g.inits[mod] = strings.new_builder(100)
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g.cleanups[mod] = strings.new_builder(100)
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}
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g.init()
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g.timers.show('cgen init')
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mut tests_inited := false
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mut autofree_used := false
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for file in files {
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g.timers.start('cgen_file $file.path')
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g.file = file
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if g.pref.is_vlines {
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g.vlines_path = util.vlines_escape_path(file.path, g.pref.ccompiler)
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}
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// println('\ncgen "$g.file.path" nr_stmts=$file.stmts.len')
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// building_v := true && (g.file.path.contains('/vlib/') || g.file.path.contains('cmd/v'))
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g.is_test = g.pref.is_test
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if g.file.path == '' || !g.pref.autofree {
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// cgen test or building V
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// println('autofree=false')
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g.is_autofree = false
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} else {
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g.is_autofree = true
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autofree_used = true
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}
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// anon fn may include assert and thus this needs
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// to be included before any test contents are written
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if g.is_test && !tests_inited {
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g.write_tests_definitions()
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tests_inited = true
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}
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g.stmts(file.stmts)
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// Transfer embedded files
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if file.embedded_files.len > 0 {
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for path in file.embedded_files {
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if path !in g.embedded_files {
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g.embedded_files << path
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}
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}
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}
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g.timers.show('cgen_file $file.path')
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}
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g.timers.start('cgen common')
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if autofree_used {
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g.is_autofree = true // so that void _vcleanup is generated
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}
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// to make sure type idx's are the same in cached mods
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if g.pref.build_mode == .build_module {
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for idx, typ in g.table.type_symbols {
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if idx == 0 {
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continue
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}
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g.definitions.writeln('int _v_type_idx_${typ.cname}();')
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}
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} else if g.pref.use_cache {
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for idx, typ in g.table.type_symbols {
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if idx == 0 {
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continue
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}
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g.definitions.writeln('int _v_type_idx_${typ.cname}() { return $idx; };')
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}
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}
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//
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g.dump_expr_definitions()
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// v files are finished, what remains is pure C code
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g.gen_vlines_reset()
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if g.pref.build_mode != .build_module {
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// no init in builtin.o
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g.write_init_function()
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}
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g.finish()
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mut b := strings.new_builder(640000)
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b.write_string(g.hashes())
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b.writeln('\n// V comptime_defines:')
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b.write_string(g.comptime_defines.str())
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b.writeln('\n// V typedefs:')
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b.write_string(g.typedefs.str())
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b.writeln('\n// V typedefs2:')
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b.write_string(g.typedefs2.str())
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b.writeln('\n// V cheaders:')
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b.write_string(g.cheaders.str())
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if g.pcs_declarations.len > 0 {
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b.writeln('\n// V profile counters:')
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b.write_string(g.pcs_declarations.str())
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}
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b.writeln('\n// V includes:')
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b.write_string(g.includes.str())
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b.writeln('\n// Enum definitions:')
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b.write_string(g.enum_typedefs.str())
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b.writeln('\n// V type definitions:')
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b.write_string(g.type_definitions.str())
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b.writeln('\n// V shared types:')
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b.write_string(g.shared_types.str())
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b.writeln('\n// V Option_xxx definitions:')
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b.write_string(g.options.str())
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b.writeln('\n// V json forward decls:')
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b.write_string(g.json_forward_decls.str())
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b.writeln('\n// V definitions:')
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b.write_string(g.definitions.str())
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interface_table := g.interface_table()
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if interface_table.len > 0 {
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b.writeln('\n// V interface table:')
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b.write_string(interface_table)
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}
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if g.gowrappers.len > 0 {
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b.writeln('\n// V gowrappers:')
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b.write_string(g.gowrappers.str())
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}
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if g.hotcode_definitions.len > 0 {
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b.writeln('\n// V hotcode definitions:')
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b.write_string(g.hotcode_definitions.str())
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}
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if g.embedded_data.len > 0 {
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b.writeln('\n// V embedded data:')
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b.write_string(g.embedded_data.str())
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}
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if g.options_typedefs.len > 0 {
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b.writeln('\n// V option typedefs:')
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b.write_string(g.options_typedefs.str())
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}
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if g.shared_functions.len > 0 {
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b.writeln('\n// V shared type functions:')
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b.write_string(g.shared_functions.str())
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b.write_string(c_concurrency_helpers)
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}
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if g.channel_definitions.len > 0 {
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b.writeln('\n// V channel code:')
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b.write_string(g.channel_definitions.str())
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}
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if g.stringliterals.len > 0 {
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b.writeln('\n// V stringliterals:')
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b.write_string(g.stringliterals.str())
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}
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if g.auto_str_funcs.len > 0 {
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// if g.pref.build_mode != .build_module {
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b.writeln('\n// V auto str functions:')
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b.write_string(g.auto_str_funcs.str())
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// }
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}
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if g.auto_fn_definitions.len > 0 {
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for fn_def in g.auto_fn_definitions {
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b.writeln(fn_def)
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}
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}
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if g.anon_fn_definitions.len > 0 {
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for fn_def in g.anon_fn_definitions {
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b.writeln(fn_def)
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}
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}
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b.writeln('\n// V out')
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b.write_string(g.out.str())
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b.writeln('\n// THE END.')
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g.timers.show('cgen common')
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return b.str()
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}
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pub fn (g &Gen) hashes() string {
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mut res := c_commit_hash_default.replace('@@@', util.vhash())
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res += c_current_commit_hash_default.replace('@@@', util.githash(g.pref.building_v))
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return res
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}
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pub fn (mut g Gen) init() {
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if g.pref.custom_prelude != '' {
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g.cheaders.writeln(g.pref.custom_prelude)
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} else if !g.pref.no_preludes {
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g.cheaders.writeln('// Generated by the V compiler')
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tcc_undef_has_include := '
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#if defined(__TINYC__) && defined(__has_include)
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// tcc does not support has_include properly yet, turn it off completely
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#undef __has_include
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#endif'
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g.cheaders.writeln(tcc_undef_has_include)
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g.includes.writeln(tcc_undef_has_include)
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g.cheaders.writeln(get_guarded_include_text('<inttypes.h>', 'The C compiler can not find <inttypes.h> . Please install build-essentials')) // int64_t etc
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g.cheaders.writeln(c_builtin_types)
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if g.pref.is_bare {
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g.cheaders.writeln(c_bare_headers)
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} else {
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g.cheaders.writeln(c_headers)
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}
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if !g.pref.skip_unused || g.table.used_maps > 0 {
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g.cheaders.writeln(c_wyhash_headers)
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}
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}
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if g.pref.os == .ios {
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g.cheaders.writeln('#define __TARGET_IOS__ 1')
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g.cheaders.writeln('#include <spawn.h>')
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}
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g.write_builtin_types()
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g.write_typedef_types()
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g.write_typeof_functions()
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g.write_sorted_types()
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g.write_multi_return_types()
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g.definitions.writeln('// end of definitions #endif')
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//
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|
g.stringliterals.writeln('')
|
|
g.stringliterals.writeln('// >> string literal consts')
|
|
if g.pref.build_mode != .build_module {
|
|
g.stringliterals.writeln('void vinit_string_literals(){')
|
|
}
|
|
if g.pref.compile_defines_all.len > 0 {
|
|
g.comptime_defines.writeln('// V compile time defines by -d or -define flags:')
|
|
g.comptime_defines.writeln('// All custom defines : ' +
|
|
g.pref.compile_defines_all.join(','))
|
|
g.comptime_defines.writeln('// Turned ON custom defines: ' +
|
|
g.pref.compile_defines.join(','))
|
|
for cdefine in g.pref.compile_defines {
|
|
g.comptime_defines.writeln('#define CUSTOM_DEFINE_$cdefine')
|
|
}
|
|
g.comptime_defines.writeln('')
|
|
}
|
|
if g.table.gostmts > 0 {
|
|
g.comptime_defines.writeln('#define __VTHREADS__ (1)')
|
|
}
|
|
if g.pref.gc_mode in [.boehm_full, .boehm_incr, .boehm_full_opt, .boehm_incr_opt, .boehm,
|
|
.boehm_leak,
|
|
] {
|
|
g.comptime_defines.writeln('#define _VGCBOEHM (1)')
|
|
}
|
|
if g.pref.is_debug || 'debug' in g.pref.compile_defines {
|
|
g.comptime_defines.writeln('#define _VDEBUG (1)')
|
|
}
|
|
if g.pref.is_prod || 'prod' in g.pref.compile_defines {
|
|
g.comptime_defines.writeln('#define _VPROD (1)')
|
|
}
|
|
if g.pref.is_test || 'test' in g.pref.compile_defines {
|
|
g.comptime_defines.writeln('#define _VTEST (1)')
|
|
}
|
|
if g.pref.autofree {
|
|
g.comptime_defines.writeln('#define _VAUTOFREE (1)')
|
|
// g.comptime_defines.writeln('unsigned char* g_cur_str;')
|
|
}
|
|
if g.pref.prealloc {
|
|
g.comptime_defines.writeln('#define _VPREALLOC (1)')
|
|
}
|
|
if g.pref.is_livemain || g.pref.is_liveshared {
|
|
g.generate_hotcode_reloading_declarations()
|
|
}
|
|
// Obfuscate only functions in the main module for now.
|
|
// Generate the obf_ast.
|
|
if g.pref.obfuscate {
|
|
mut i := 0
|
|
// fns
|
|
for key, f in g.table.fns {
|
|
if f.mod != 'main' && key != 'main' { // !key.starts_with('main.') {
|
|
continue
|
|
}
|
|
g.obf_table[key] = '_f$i'
|
|
i++
|
|
}
|
|
// methods
|
|
for type_sym in g.table.type_symbols {
|
|
if type_sym.mod != 'main' {
|
|
continue
|
|
}
|
|
for method in type_sym.methods {
|
|
g.obf_table[type_sym.name + '.' + method.name] = '_f$i'
|
|
i++
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn (mut g Gen) finish() {
|
|
if g.pref.build_mode != .build_module {
|
|
g.stringliterals.writeln('}')
|
|
}
|
|
g.stringliterals.writeln('// << string literal consts')
|
|
g.stringliterals.writeln('')
|
|
if g.pref.is_prof && g.pref.build_mode != .build_module {
|
|
g.gen_vprint_profile_stats()
|
|
}
|
|
if g.pref.is_livemain || g.pref.is_liveshared {
|
|
g.generate_hotcode_reloader_code()
|
|
}
|
|
if g.embed_file_is_prod_mode() && g.embedded_files.len > 0 {
|
|
g.gen_embedded_data()
|
|
}
|
|
if g.pref.is_test {
|
|
g.gen_c_main_for_tests()
|
|
} else {
|
|
g.gen_c_main()
|
|
}
|
|
}
|
|
|
|
pub fn (mut g Gen) write_typeof_functions() {
|
|
g.writeln('')
|
|
g.writeln('// >> typeof() support for sum types / interfaces')
|
|
for typ in g.table.type_symbols {
|
|
if typ.kind == .sum_type {
|
|
sum_info := typ.info as ast.SumType
|
|
g.writeln('static char * v_typeof_sumtype_${typ.cname}(int sidx) { /* $typ.name */ ')
|
|
if g.pref.build_mode == .build_module {
|
|
g.writeln('\t\tif( sidx == _v_type_idx_${typ.cname}() ) return "${util.strip_main_name(typ.name)}";')
|
|
for v in sum_info.variants {
|
|
subtype := g.table.get_type_symbol(v)
|
|
g.writeln('\tif( sidx == _v_type_idx_${subtype.cname}() ) return "${util.strip_main_name(subtype.name)}";')
|
|
}
|
|
g.writeln('\treturn "unknown ${util.strip_main_name(typ.name)}";')
|
|
} else {
|
|
tidx := g.table.find_type_idx(typ.name)
|
|
g.writeln('\tswitch(sidx) {')
|
|
g.writeln('\t\tcase $tidx: return "${util.strip_main_name(typ.name)}";')
|
|
for v in sum_info.variants {
|
|
subtype := g.table.get_type_symbol(v)
|
|
g.writeln('\t\tcase $v: return "${util.strip_main_name(subtype.name)}";')
|
|
}
|
|
g.writeln('\t\tdefault: return "unknown ${util.strip_main_name(typ.name)}";')
|
|
g.writeln('\t}')
|
|
}
|
|
g.writeln('}')
|
|
} else if typ.kind == .interface_ {
|
|
inter_info := typ.info as ast.Interface
|
|
g.writeln('static char * v_typeof_interface_${typ.cname}(int sidx) { /* $typ.name */ ')
|
|
for t in inter_info.types {
|
|
subtype := g.table.get_type_symbol(t)
|
|
g.writeln('\tif (sidx == _${typ.cname}_${subtype.cname}_index) return "${util.strip_main_name(subtype.name)}";')
|
|
}
|
|
g.writeln('\treturn "unknown ${util.strip_main_name(typ.name)}";')
|
|
g.writeln('}')
|
|
}
|
|
}
|
|
g.writeln('// << typeof() support for sum types')
|
|
g.writeln('')
|
|
}
|
|
|
|
// V type to C typecc
|
|
fn (mut g Gen) typ(t ast.Type) string {
|
|
styp := g.base_type(t)
|
|
if t.has_flag(.optional) {
|
|
// Register an optional if it's not registered yet
|
|
return g.register_optional(t)
|
|
}
|
|
/*
|
|
if styp.starts_with('C__') {
|
|
return styp[3..]
|
|
}
|
|
*/
|
|
return styp
|
|
}
|
|
|
|
fn (mut g Gen) base_type(t ast.Type) string {
|
|
share := t.share()
|
|
mut styp := if share == .atomic_t { t.atomic_typename() } else { g.cc_type(t, true) }
|
|
if t.has_flag(.shared_f) {
|
|
styp = g.find_or_register_shared(t, styp)
|
|
}
|
|
nr_muls := t.nr_muls()
|
|
if nr_muls > 0 {
|
|
styp += strings.repeat(`*`, nr_muls)
|
|
}
|
|
return styp
|
|
}
|
|
|
|
fn (mut g Gen) expr_string(expr ast.Expr) string {
|
|
pos := g.out.len
|
|
g.expr(expr)
|
|
expr_str := g.out.after(pos)
|
|
g.out.go_back(expr_str.len)
|
|
return expr_str.trim_space()
|
|
}
|
|
|
|
// Surround a potentially multi-statement expression safely with `prepend` and `append`.
|
|
// (and create a statement)
|
|
fn (mut g Gen) expr_string_surround(prepend string, expr ast.Expr, append string) string {
|
|
pos := g.out.len
|
|
g.stmt_path_pos << pos
|
|
g.write(prepend)
|
|
g.expr(expr)
|
|
g.write(append)
|
|
expr_str := g.out.after(pos)
|
|
g.out.go_back(expr_str.len)
|
|
g.stmt_path_pos.delete_last()
|
|
return expr_str
|
|
}
|
|
|
|
// TODO this really shouldnt be seperate from typ
|
|
// but I(emily) would rather have this generation
|
|
// all unified in one place so that it doesnt break
|
|
// if one location changes
|
|
fn (mut g Gen) optional_type_name(t ast.Type) (string, string) {
|
|
base := g.base_type(t)
|
|
mut styp := 'Option_$base'
|
|
if t.is_ptr() {
|
|
styp = styp.replace('*', '_ptr')
|
|
}
|
|
return styp, base
|
|
}
|
|
|
|
fn (g &Gen) optional_type_text(styp string, base string) string {
|
|
// replace void with something else
|
|
size := if base == 'void' { 'byte' } else { base }
|
|
ret := 'struct $styp {
|
|
byte state;
|
|
IError err;
|
|
byte data[sizeof($size)];
|
|
}'
|
|
return ret
|
|
}
|
|
|
|
fn (mut g Gen) register_optional(t ast.Type) string {
|
|
styp, base := g.optional_type_name(t)
|
|
if styp !in g.optionals {
|
|
g.typedefs2.writeln('typedef struct $styp $styp;')
|
|
g.options.write_string(g.optional_type_text(styp, base))
|
|
g.options.writeln(';\n')
|
|
g.optionals << styp.clone()
|
|
}
|
|
return styp
|
|
}
|
|
|
|
fn (mut g Gen) find_or_register_shared(t ast.Type, base string) string {
|
|
sh_typ := '__shared__$base'
|
|
t_idx := t.idx()
|
|
if t_idx in g.shareds {
|
|
return sh_typ
|
|
}
|
|
mtx_typ := 'sync__RwMutex'
|
|
g.shared_types.writeln('struct $sh_typ { $base val; $mtx_typ mtx; };')
|
|
g.shared_functions.writeln('static inline voidptr __dup${sh_typ}(voidptr src, int sz) {')
|
|
g.shared_functions.writeln('\t$sh_typ* dest = memdup(src, sz);')
|
|
g.shared_functions.writeln('\tsync__RwMutex_init(&dest->mtx);')
|
|
g.shared_functions.writeln('\treturn dest;')
|
|
g.shared_functions.writeln('}')
|
|
g.typedefs2.writeln('typedef struct $sh_typ $sh_typ;')
|
|
// println('registered shared type $sh_typ')
|
|
g.shareds << t_idx
|
|
return sh_typ
|
|
}
|
|
|
|
fn (mut g Gen) register_thread_array_wait_call(eltyp string) string {
|
|
is_void := eltyp == 'void'
|
|
thread_typ := if is_void { '__v_thread' } else { '__v_thread_$eltyp' }
|
|
ret_typ := if is_void { 'void' } else { 'Array_$eltyp' }
|
|
thread_arr_typ := 'Array_$thread_typ'
|
|
fn_name := '${thread_arr_typ}_wait'
|
|
if fn_name !in g.waiter_fns {
|
|
g.waiter_fns << fn_name
|
|
if is_void {
|
|
g.gowrappers.writeln('
|
|
void ${fn_name}($thread_arr_typ a) {
|
|
for (int i = 0; i < a.len; ++i) {
|
|
$thread_typ t = (($thread_typ*)a.data)[i];
|
|
__v_thread_wait(t);
|
|
}
|
|
}')
|
|
} else {
|
|
g.gowrappers.writeln('
|
|
$ret_typ ${fn_name}($thread_arr_typ a) {
|
|
$ret_typ res = __new_array_with_default(a.len, a.len, sizeof($eltyp), 0);
|
|
for (int i = 0; i < a.len; ++i) {
|
|
$thread_typ t = (($thread_typ*)a.data)[i];
|
|
(($eltyp*)res.data)[i] = __v_thread_${eltyp}_wait(t);
|
|
}
|
|
return res;
|
|
}')
|
|
}
|
|
}
|
|
return fn_name
|
|
}
|
|
|
|
fn (mut g Gen) register_chan_pop_optional_call(opt_el_type string, styp string) {
|
|
if opt_el_type !in g.chan_pop_optionals {
|
|
g.chan_pop_optionals << opt_el_type
|
|
g.channel_definitions.writeln('
|
|
static inline $opt_el_type __Option_${styp}_popval($styp ch) {
|
|
$opt_el_type _tmp = {0};
|
|
if (sync__Channel_try_pop_priv(ch, _tmp.data, false)) {
|
|
return ($opt_el_type){ .state = 2, .err = v_error(_SLIT("channel closed")), .data = {0} };
|
|
}
|
|
return _tmp;
|
|
}')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) register_chan_push_optional_call(el_type string, styp string) {
|
|
if styp !in g.chan_push_optionals {
|
|
g.chan_push_optionals << styp
|
|
g.register_optional(ast.void_type.set_flag(.optional))
|
|
g.channel_definitions.writeln('
|
|
static inline Option_void __Option_${styp}_pushval($styp ch, $el_type e) {
|
|
if (sync__Channel_try_push_priv(ch, &e, false)) {
|
|
return (Option_void){ .state = 2, .err = v_error(_SLIT("channel closed")), .data = {0} };
|
|
}
|
|
return (Option_void){0};
|
|
}')
|
|
}
|
|
}
|
|
|
|
// cc_type whether to prefix 'struct' or not (C__Foo -> struct Foo)
|
|
fn (mut g Gen) cc_type(typ ast.Type, is_prefix_struct bool) string {
|
|
sym := g.table.get_type_symbol(g.unwrap_generic(typ))
|
|
mut styp := sym.cname
|
|
// TODO: this needs to be removed; cgen shouldn't resolve generic types (job of checker)
|
|
if mut sym.info is ast.Struct {
|
|
if sym.info.is_generic {
|
|
mut sgtyps := '_T'
|
|
for gt in sym.info.generic_types {
|
|
gts := g.table.get_type_symbol(g.unwrap_generic(gt))
|
|
sgtyps += '_$gts.cname'
|
|
}
|
|
styp += sgtyps
|
|
}
|
|
} else if mut sym.info is ast.MultiReturn {
|
|
// TODO: this doesn't belong here, but makes it working for now
|
|
mut cname := 'multi_return'
|
|
for mr_typ in sym.info.types {
|
|
mr_type_sym := g.table.get_type_symbol(g.unwrap_generic(mr_typ))
|
|
cname += '_$mr_type_sym.cname'
|
|
}
|
|
return cname
|
|
}
|
|
if is_prefix_struct && styp.starts_with('C__') {
|
|
styp = styp[3..]
|
|
if sym.kind == .struct_ {
|
|
info := sym.info as ast.Struct
|
|
if !info.is_typedef {
|
|
styp = 'struct $styp'
|
|
}
|
|
}
|
|
}
|
|
return styp
|
|
}
|
|
|
|
[inline]
|
|
fn (g &Gen) type_sidx(t ast.Type) string {
|
|
if g.pref.build_mode == .build_module {
|
|
sym := g.table.get_type_symbol(t)
|
|
return '_v_type_idx_${sym.cname}()'
|
|
}
|
|
return '$t.idx()'
|
|
}
|
|
|
|
//
|
|
pub fn (mut g Gen) write_typedef_types() {
|
|
for typ in g.table.type_symbols {
|
|
if typ.name in c.builtins {
|
|
continue
|
|
}
|
|
match typ.kind {
|
|
.array {
|
|
g.type_definitions.writeln('typedef array $typ.cname;')
|
|
}
|
|
.array_fixed {
|
|
info := typ.info as ast.ArrayFixed
|
|
elem_sym := g.table.get_type_symbol(info.elem_type)
|
|
if elem_sym.is_builtin() {
|
|
// .array_fixed {
|
|
styp := typ.cname
|
|
// array_fixed_char_300 => char x[300]
|
|
mut fixed := styp[12..]
|
|
len := styp.after('_')
|
|
fixed = fixed[..fixed.len - len.len - 1]
|
|
if fixed.starts_with('C__') {
|
|
fixed = fixed[3..]
|
|
}
|
|
if elem_sym.info is ast.FnType {
|
|
pos := g.out.len
|
|
g.write_fn_ptr_decl(&elem_sym.info, '')
|
|
fixed = g.out.after(pos)
|
|
g.out.go_back(fixed.len)
|
|
mut def_str := 'typedef $fixed;'
|
|
def_str = def_str.replace_once('(*)', '(*$styp[$len])')
|
|
g.type_definitions.writeln(def_str)
|
|
} else {
|
|
g.type_definitions.writeln('typedef $fixed $styp [$len];')
|
|
}
|
|
}
|
|
}
|
|
.chan {
|
|
if typ.name != 'chan' {
|
|
g.type_definitions.writeln('typedef chan $typ.cname;')
|
|
chan_inf := typ.chan_info()
|
|
chan_elem_type := chan_inf.elem_type
|
|
if !chan_elem_type.has_flag(.generic) {
|
|
el_stype := g.typ(chan_elem_type)
|
|
g.channel_definitions.writeln('
|
|
static inline $el_stype __${typ.cname}_popval($typ.cname ch) {
|
|
$el_stype val;
|
|
sync__Channel_try_pop_priv(ch, &val, false);
|
|
return val;
|
|
}')
|
|
g.channel_definitions.writeln('
|
|
static inline void __${typ.cname}_pushval($typ.cname ch, $el_stype val) {
|
|
sync__Channel_try_push_priv(ch, &val, false);
|
|
}')
|
|
}
|
|
}
|
|
}
|
|
.map {
|
|
g.type_definitions.writeln('typedef map $typ.cname;')
|
|
}
|
|
else {
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
for typ in g.table.type_symbols {
|
|
if typ.kind == .alias && typ.name !in c.builtins {
|
|
g.write_alias_typesymbol_declaration(typ)
|
|
}
|
|
}
|
|
for typ in g.table.type_symbols {
|
|
if typ.kind == .function && typ.name !in c.builtins {
|
|
g.write_fn_typesymbol_declaration(typ)
|
|
}
|
|
}
|
|
// Generating interfaces after all the common types have been defined
|
|
// to prevent generating interface struct before definition of field types
|
|
for typ in g.table.type_symbols {
|
|
if typ.kind == .interface_ && typ.name !in c.builtins {
|
|
g.write_interface_typesymbol_declaration(typ)
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn (mut g Gen) write_alias_typesymbol_declaration(sym ast.TypeSymbol) {
|
|
parent := unsafe { &g.table.type_symbols[sym.parent_idx] }
|
|
is_c_parent := parent.name.len > 2 && parent.name[0] == `C` && parent.name[1] == `.`
|
|
mut is_typedef := false
|
|
if parent.info is ast.Struct {
|
|
is_typedef = parent.info.is_typedef
|
|
}
|
|
mut parent_styp := parent.cname
|
|
if is_c_parent {
|
|
if !is_typedef {
|
|
parent_styp = 'struct ' + parent.cname[3..]
|
|
} else {
|
|
parent_styp = parent.cname[3..]
|
|
}
|
|
} else {
|
|
if sym.info is ast.Alias {
|
|
parent_styp = g.typ(sym.info.parent_type)
|
|
}
|
|
}
|
|
g.type_definitions.writeln('typedef $parent_styp $sym.cname;')
|
|
}
|
|
|
|
pub fn (mut g Gen) write_interface_typesymbol_declaration(sym ast.TypeSymbol) {
|
|
info := sym.info as ast.Interface
|
|
g.type_definitions.writeln('typedef struct {')
|
|
g.type_definitions.writeln('\tunion {')
|
|
g.type_definitions.writeln('\t\tvoid* _object;')
|
|
for variant in info.types {
|
|
vcname := g.table.get_type_symbol(variant).cname
|
|
g.type_definitions.writeln('\t\t$vcname* _$vcname;')
|
|
}
|
|
g.type_definitions.writeln('\t};')
|
|
g.type_definitions.writeln('\tint _typ;')
|
|
for field in info.fields {
|
|
styp := g.typ(field.typ)
|
|
cname := c_name(field.name)
|
|
g.type_definitions.writeln('\t$styp* $cname;')
|
|
}
|
|
g.type_definitions.writeln('} ${c_name(sym.name)};')
|
|
}
|
|
|
|
pub fn (mut g Gen) write_fn_typesymbol_declaration(sym ast.TypeSymbol) {
|
|
info := sym.info as ast.FnType
|
|
func := info.func
|
|
is_fn_sig := func.name == ''
|
|
not_anon := !info.is_anon
|
|
mut has_generic_arg := false
|
|
for param in func.params {
|
|
if param.typ.has_flag(.generic) {
|
|
has_generic_arg = true
|
|
break
|
|
}
|
|
}
|
|
if !info.has_decl && (not_anon || is_fn_sig) && !func.return_type.has_flag(.generic)
|
|
&& !has_generic_arg {
|
|
fn_name := sym.cname
|
|
g.type_definitions.write_string('typedef ${g.typ(func.return_type)} (*$fn_name)(')
|
|
for i, param in func.params {
|
|
g.type_definitions.write_string(g.typ(param.typ))
|
|
if i < func.params.len - 1 {
|
|
g.type_definitions.write_string(',')
|
|
}
|
|
}
|
|
g.type_definitions.writeln(');')
|
|
}
|
|
}
|
|
|
|
pub fn (mut g Gen) write_multi_return_types() {
|
|
g.typedefs.writeln('\n// BEGIN_multi_return_typedefs')
|
|
g.type_definitions.writeln('\n// BEGIN_multi_return_structs')
|
|
for sym in g.table.type_symbols {
|
|
if sym.kind != .multi_return {
|
|
continue
|
|
}
|
|
info := sym.mr_info()
|
|
if info.types.filter(it.has_flag(.generic)).len > 0 {
|
|
continue
|
|
}
|
|
g.typedefs.writeln('typedef struct $sym.cname $sym.cname;')
|
|
g.type_definitions.writeln('struct $sym.cname {')
|
|
for i, mr_typ in info.types {
|
|
type_name := g.typ(mr_typ)
|
|
g.type_definitions.writeln('\t$type_name arg$i;')
|
|
}
|
|
g.type_definitions.writeln('};\n')
|
|
}
|
|
g.typedefs.writeln('// END_multi_return_typedefs\n')
|
|
g.type_definitions.writeln('// END_multi_return_structs\n')
|
|
}
|
|
|
|
pub fn (mut g Gen) write(s string) {
|
|
$if trace_gen ? {
|
|
eprintln('gen file: ${g.file.path:-30} | last_fn_c_name: ${g.last_fn_c_name:-45} | write: $s')
|
|
}
|
|
if g.indent > 0 && g.empty_line {
|
|
g.out.write_string(util.tabs(g.indent))
|
|
}
|
|
g.out.write_string(s)
|
|
g.empty_line = false
|
|
}
|
|
|
|
pub fn (mut g Gen) writeln(s string) {
|
|
$if trace_gen ? {
|
|
eprintln('gen file: ${g.file.path:-30} | last_fn_c_name: ${g.last_fn_c_name:-45} | writeln: $s')
|
|
}
|
|
if g.indent > 0 && g.empty_line {
|
|
g.out.write_string(util.tabs(g.indent))
|
|
}
|
|
g.out.writeln(s)
|
|
g.empty_line = true
|
|
}
|
|
|
|
pub fn (mut g Gen) new_tmp_var() string {
|
|
g.tmp_count++
|
|
return '_t$g.tmp_count'
|
|
}
|
|
|
|
pub fn (mut g Gen) current_tmp_var() string {
|
|
return '_t$g.tmp_count'
|
|
}
|
|
|
|
/*
|
|
pub fn (mut g Gen) new_tmp_var2() string {
|
|
g.tmp_count2++
|
|
return '_tt$g.tmp_count2'
|
|
}
|
|
*/
|
|
pub fn (mut g Gen) reset_tmp_count() {
|
|
g.tmp_count = 0
|
|
}
|
|
|
|
fn (mut g Gen) decrement_inside_ternary() {
|
|
key := g.inside_ternary.str()
|
|
for name in g.ternary_level_names[key] {
|
|
g.ternary_names.delete(name)
|
|
}
|
|
g.ternary_level_names.delete(key)
|
|
g.inside_ternary--
|
|
}
|
|
|
|
fn (mut g Gen) stmts(stmts []ast.Stmt) {
|
|
g.stmts_with_tmp_var(stmts, '')
|
|
}
|
|
|
|
// tmp_var is used in `if` expressions only
|
|
fn (mut g Gen) stmts_with_tmp_var(stmts []ast.Stmt, tmp_var string) {
|
|
g.indent++
|
|
if g.inside_ternary > 0 {
|
|
g.write('(')
|
|
}
|
|
for i, stmt in stmts {
|
|
if i == stmts.len - 1 && tmp_var != '' {
|
|
// Handle if expressions, set the value of the last expression to the temp var.
|
|
if g.inside_if_optional {
|
|
g.stmt_path_pos << g.out.len
|
|
g.skip_stmt_pos = true
|
|
if stmt is ast.ExprStmt {
|
|
if stmt.typ == ast.error_type_idx || stmt.expr is ast.None {
|
|
g.writeln('${tmp_var}.state = 2;')
|
|
g.write('${tmp_var}.err = ')
|
|
g.expr(stmt.expr)
|
|
g.writeln(';')
|
|
} else {
|
|
mut styp := g.base_type(stmt.typ)
|
|
$if tinyc && x32 && windows {
|
|
if stmt.typ == ast.int_literal_type {
|
|
styp = 'int'
|
|
} else if stmt.typ == ast.float_literal_type {
|
|
styp = 'f64'
|
|
}
|
|
}
|
|
g.write('opt_ok(&($styp[]) { ')
|
|
g.stmt(stmt)
|
|
g.writeln(' }, (Option*)(&$tmp_var), sizeof($styp));')
|
|
}
|
|
}
|
|
} else {
|
|
g.stmt_path_pos << g.out.len
|
|
g.skip_stmt_pos = true
|
|
g.write('$tmp_var = ')
|
|
g.stmt(stmt)
|
|
if !g.out.last_n(2).contains(';') {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
} else {
|
|
g.stmt(stmt)
|
|
if g.inside_if_optional && stmt is ast.ExprStmt {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
g.skip_stmt_pos = false
|
|
if g.inside_ternary > 0 && i < stmts.len - 1 {
|
|
g.write(',')
|
|
}
|
|
}
|
|
g.indent--
|
|
if g.inside_ternary > 0 {
|
|
g.write('')
|
|
g.write(')')
|
|
}
|
|
if g.is_autofree && !g.inside_vweb_tmpl && stmts.len > 0 {
|
|
// use the first stmt to get the scope
|
|
stmt := stmts[0]
|
|
// stmt := stmts[stmts.len-1]
|
|
if stmt !is ast.FnDecl && g.inside_ternary == 0 {
|
|
// g.trace_autofree('// autofree scope')
|
|
// g.trace_autofree('// autofree_scope_vars($stmt.pos.pos) | ${typeof(stmt)}')
|
|
// go back 1 position is important so we dont get the
|
|
// internal scope of for loops and possibly other nodes
|
|
// g.autofree_scope_vars(stmt.pos.pos - 1)
|
|
mut stmt_pos := stmt.pos
|
|
if stmt_pos.pos == 0 {
|
|
// Do not autofree if the position is 0, since the correct scope won't be found.
|
|
// Report a bug, since position shouldn't be 0 for most nodes.
|
|
if stmt is ast.Module {
|
|
return
|
|
}
|
|
if stmt is ast.ExprStmt {
|
|
// For some reason ExprStmt.pos is 0 when ExprStmt.expr is comp if expr
|
|
// Extract the pos. TODO figure out why and fix.
|
|
stmt_pos = stmt.expr.position()
|
|
}
|
|
if stmt_pos.pos == 0 {
|
|
$if trace_autofree ? {
|
|
println('autofree: first stmt pos = 0. $stmt.type_name()')
|
|
}
|
|
return
|
|
}
|
|
}
|
|
g.autofree_scope_vars(stmt_pos.pos - 1, stmt_pos.line_nr, false)
|
|
}
|
|
}
|
|
}
|
|
|
|
[inline]
|
|
fn (mut g Gen) write_v_source_line_info(pos token.Position) {
|
|
if g.inside_ternary == 0 && g.pref.is_vlines && g.is_vlines_enabled {
|
|
nline := pos.line_nr + 1
|
|
lineinfo := '\n#line $nline "$g.vlines_path"'
|
|
g.writeln(lineinfo)
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) stmt(node ast.Stmt) {
|
|
if !g.skip_stmt_pos {
|
|
g.stmt_path_pos << g.out.len
|
|
}
|
|
defer {
|
|
}
|
|
// println('g.stmt()')
|
|
// g.writeln('//// stmt start')
|
|
match node {
|
|
ast.EmptyStmt {}
|
|
ast.AsmStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
g.gen_asm_stmt(node)
|
|
}
|
|
ast.AssertStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
g.gen_assert_stmt(node)
|
|
}
|
|
ast.AssignStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
g.gen_assign_stmt(node)
|
|
}
|
|
ast.Block {
|
|
g.write_v_source_line_info(node.pos)
|
|
if node.is_unsafe {
|
|
g.writeln('{ // Unsafe block')
|
|
} else {
|
|
g.writeln('{')
|
|
}
|
|
g.stmts(node.stmts)
|
|
g.writeln('}')
|
|
}
|
|
ast.BranchStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
|
|
if node.label != '' {
|
|
x := g.labeled_loops[node.label] or {
|
|
panic('$node.label doesn\'t exist $g.file.path, $node.pos')
|
|
}
|
|
match x {
|
|
ast.ForCStmt {
|
|
if x.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
ast.ForInStmt {
|
|
if x.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
ast.ForStmt {
|
|
if x.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
else {}
|
|
}
|
|
|
|
if node.kind == .key_break {
|
|
g.writeln('goto ${node.label}__break;')
|
|
} else {
|
|
// assert node.kind == .key_continue
|
|
g.writeln('goto ${node.label}__continue;')
|
|
}
|
|
} else {
|
|
inner_loop := g.inner_loop
|
|
match inner_loop {
|
|
ast.ForCStmt {
|
|
if inner_loop.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
ast.ForInStmt {
|
|
if inner_loop.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
ast.ForStmt {
|
|
if inner_loop.scope.contains(g.cur_lock.pos.pos) {
|
|
g.unlock_locks()
|
|
}
|
|
}
|
|
else {}
|
|
}
|
|
// continue or break
|
|
if g.is_autofree && !g.is_builtin_mod {
|
|
g.trace_autofree('// free before continue/break')
|
|
g.autofree_scope_vars_stop(node.pos.pos - 1, node.pos.line_nr, true,
|
|
g.branch_parent_pos)
|
|
}
|
|
g.writeln('$node.kind;')
|
|
}
|
|
}
|
|
ast.ConstDecl {
|
|
g.write_v_source_line_info(node.pos)
|
|
// if g.pref.build_mode != .build_module {
|
|
g.const_decl(node)
|
|
// }
|
|
}
|
|
ast.CompFor {
|
|
g.comp_for(node)
|
|
}
|
|
ast.DeferStmt {
|
|
mut defer_stmt := node
|
|
defer_stmt.ifdef = g.defer_ifdef
|
|
g.writeln('${g.defer_flag_var(defer_stmt)} = true;')
|
|
g.defer_stmts << defer_stmt
|
|
}
|
|
ast.EnumDecl {
|
|
enum_name := util.no_dots(node.name)
|
|
is_flag := node.is_flag
|
|
g.enum_typedefs.writeln('typedef enum {')
|
|
mut cur_enum_expr := ''
|
|
mut cur_enum_offset := 0
|
|
for i, field in node.fields {
|
|
g.enum_typedefs.write_string('\t${enum_name}_$field.name')
|
|
if field.has_expr {
|
|
g.enum_typedefs.write_string(' = ')
|
|
expr_str := g.expr_string(field.expr)
|
|
g.enum_typedefs.write_string(expr_str)
|
|
cur_enum_expr = expr_str
|
|
cur_enum_offset = 0
|
|
} else if is_flag {
|
|
g.enum_typedefs.write_string(' = ')
|
|
cur_enum_expr = '1 << $i'
|
|
g.enum_typedefs.write_string((1 << i).str())
|
|
cur_enum_offset = 0
|
|
}
|
|
cur_value := if cur_enum_offset > 0 {
|
|
'$cur_enum_expr+$cur_enum_offset'
|
|
} else {
|
|
cur_enum_expr
|
|
}
|
|
g.enum_typedefs.writeln(', // $cur_value')
|
|
cur_enum_offset++
|
|
}
|
|
g.enum_typedefs.writeln('} $enum_name;\n')
|
|
}
|
|
ast.ExprStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
// af := g.autofree && node.expr is ast.CallExpr && !g.is_builtin_mod
|
|
// if af {
|
|
// g.autofree_call_pregen(node.expr as ast.CallExpr)
|
|
// }
|
|
old_is_void_expr_stmt := g.is_void_expr_stmt
|
|
g.is_void_expr_stmt = !node.is_expr
|
|
if node.typ != ast.void_type && g.expected_cast_type != 0 {
|
|
g.expr_with_cast(node.expr, node.typ, g.expected_cast_type)
|
|
} else {
|
|
g.expr(node.expr)
|
|
}
|
|
g.is_void_expr_stmt = old_is_void_expr_stmt
|
|
// if af {
|
|
// g.autofree_call_postgen()
|
|
// }
|
|
if g.inside_ternary == 0 && !g.inside_if_optional && !node.is_expr
|
|
&& node.expr !is ast.IfExpr {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
ast.FnDecl {
|
|
g.process_fn_decl(node)
|
|
}
|
|
ast.ForCStmt {
|
|
prev_branch_parent_pos := g.branch_parent_pos
|
|
g.branch_parent_pos = node.pos.pos
|
|
save_inner_loop := g.inner_loop
|
|
g.inner_loop = unsafe { &node }
|
|
if node.label != '' {
|
|
g.labeled_loops[node.label] = unsafe { &node }
|
|
}
|
|
g.write_v_source_line_info(node.pos)
|
|
g.for_c_stmt(node)
|
|
g.branch_parent_pos = prev_branch_parent_pos
|
|
g.labeled_loops.delete(node.label)
|
|
g.inner_loop = save_inner_loop
|
|
}
|
|
ast.ForInStmt {
|
|
prev_branch_parent_pos := g.branch_parent_pos
|
|
g.branch_parent_pos = node.pos.pos
|
|
save_inner_loop := g.inner_loop
|
|
g.inner_loop = unsafe { &node }
|
|
if node.label != '' {
|
|
g.labeled_loops[node.label] = unsafe { &node }
|
|
}
|
|
g.write_v_source_line_info(node.pos)
|
|
g.for_in_stmt(node)
|
|
g.branch_parent_pos = prev_branch_parent_pos
|
|
g.labeled_loops.delete(node.label)
|
|
g.inner_loop = save_inner_loop
|
|
}
|
|
ast.ForStmt {
|
|
prev_branch_parent_pos := g.branch_parent_pos
|
|
g.branch_parent_pos = node.pos.pos
|
|
save_inner_loop := g.inner_loop
|
|
g.inner_loop = unsafe { &node }
|
|
if node.label != '' {
|
|
g.labeled_loops[node.label] = unsafe { &node }
|
|
}
|
|
g.write_v_source_line_info(node.pos)
|
|
g.for_stmt(node)
|
|
g.branch_parent_pos = prev_branch_parent_pos
|
|
g.labeled_loops.delete(node.label)
|
|
g.inner_loop = save_inner_loop
|
|
}
|
|
ast.GlobalDecl {
|
|
g.global_decl(node)
|
|
}
|
|
ast.GotoLabel {
|
|
g.writeln('$node.name: {}')
|
|
}
|
|
ast.GotoStmt {
|
|
g.write_v_source_line_info(node.pos)
|
|
g.writeln('goto $node.name;')
|
|
}
|
|
ast.HashStmt {
|
|
// #include etc
|
|
if node.kind == 'include' {
|
|
mut missing_message := 'Header file $node.main, needed for module `$node.mod` was not found.'
|
|
if node.msg != '' {
|
|
missing_message += ' ${node.msg}.'
|
|
} else {
|
|
missing_message += ' Please install the corresponding development headers.'
|
|
}
|
|
mut guarded_include := get_guarded_include_text(node.main, missing_message)
|
|
if node.main == '<errno.h>' {
|
|
// fails with musl-gcc and msvc; but an unguarded include works:
|
|
guarded_include = '#include $node.main'
|
|
}
|
|
if node.main.contains('.m') {
|
|
// Objective C code import, include it after V types, so that e.g. `string` is
|
|
// available there
|
|
g.definitions.writeln('// added by module `$node.mod`:')
|
|
g.definitions.writeln(guarded_include)
|
|
} else {
|
|
g.includes.writeln('// added by module `$node.mod`:')
|
|
g.includes.writeln(guarded_include)
|
|
}
|
|
} else if node.kind == 'define' {
|
|
g.includes.writeln('// defined by module `$node.mod` in file `$node.source_file`:')
|
|
g.includes.writeln('#define $node.main')
|
|
}
|
|
}
|
|
ast.Import {}
|
|
ast.InterfaceDecl {
|
|
// definitions are sorted and added in write_types
|
|
}
|
|
ast.Module {
|
|
// g.is_builtin_mod = node.name == 'builtin'
|
|
g.is_builtin_mod = node.name in ['builtin', 'os', 'strconv', 'strings', 'gg']
|
|
// g.cur_mod = node.name
|
|
g.cur_mod = node
|
|
}
|
|
ast.NodeError {}
|
|
ast.Return {
|
|
g.return_stmt(node)
|
|
}
|
|
ast.SqlStmt {
|
|
g.sql_stmt(node)
|
|
}
|
|
ast.StructDecl {
|
|
name := if node.language == .c { util.no_dots(node.name) } else { c_name(node.name) }
|
|
// TODO For some reason, build fails with autofree with this line
|
|
// as it's only informative, comment it for now
|
|
// g.gen_attrs(node.attrs)
|
|
// g.writeln('typedef struct {')
|
|
// for field in it.fields {
|
|
// field_type_sym := g.table.get_type_symbol(field.typ)
|
|
// g.writeln('\t$field_type_sym.name $field.name;')
|
|
// }
|
|
// g.writeln('} $name;')
|
|
if node.language == .c {
|
|
return
|
|
}
|
|
if node.is_union {
|
|
g.typedefs.writeln('typedef union $name $name;')
|
|
} else {
|
|
/*
|
|
attrs := if node.attrs.contains('packed') {
|
|
'__attribute__((__packed__))'
|
|
} else {
|
|
''
|
|
}
|
|
*/
|
|
g.typedefs.writeln('typedef struct $name $name;')
|
|
}
|
|
}
|
|
ast.TypeDecl {
|
|
if !g.pref.skip_unused {
|
|
g.writeln('// TypeDecl')
|
|
}
|
|
}
|
|
}
|
|
if !g.skip_stmt_pos { // && g.stmt_path_pos.len > 0 {
|
|
g.stmt_path_pos.delete_last()
|
|
}
|
|
// If we have temporary string exprs to free after this statement, do it. e.g.:
|
|
// `foo('a' + 'b')` => `tmp := 'a' + 'b'; foo(tmp); string_free(&tmp);`
|
|
if g.is_autofree {
|
|
// if node is ast.ExprStmt {&& node.expr is ast.CallExpr {
|
|
if node !is ast.FnDecl {
|
|
// p := node.position()
|
|
// g.autofree_call_postgen(p.pos)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) write_defer_stmts() {
|
|
for i := g.defer_stmts.len - 1; i >= 0; i-- {
|
|
defer_stmt := g.defer_stmts[i]
|
|
g.writeln('// Defer begin')
|
|
g.writeln('if (${g.defer_flag_var(defer_stmt)}) {')
|
|
g.indent++
|
|
if defer_stmt.ifdef.len > 0 {
|
|
g.writeln(defer_stmt.ifdef)
|
|
g.stmts(defer_stmt.stmts)
|
|
g.writeln('')
|
|
g.writeln('#endif')
|
|
} else {
|
|
g.indent--
|
|
g.stmts(defer_stmt.stmts)
|
|
g.indent++
|
|
}
|
|
g.indent--
|
|
g.writeln('}')
|
|
g.writeln('// Defer end')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) for_c_stmt(node ast.ForCStmt) {
|
|
if node.is_multi {
|
|
g.is_vlines_enabled = false
|
|
if node.label.len > 0 {
|
|
g.writeln('$node.label:')
|
|
}
|
|
g.writeln('{')
|
|
g.indent++
|
|
if node.has_init {
|
|
g.stmt(node.init)
|
|
}
|
|
g.writeln('bool _is_first = true;')
|
|
g.writeln('while (true) {')
|
|
g.writeln('\tif (_is_first) {')
|
|
g.writeln('\t\t_is_first = false;')
|
|
g.writeln('\t} else {')
|
|
if node.has_inc {
|
|
g.indent++
|
|
g.stmt(node.inc)
|
|
g.writeln(';')
|
|
g.indent--
|
|
}
|
|
g.writeln('}')
|
|
if node.has_cond {
|
|
g.write('if (!(')
|
|
g.expr(node.cond)
|
|
g.writeln(')) break;')
|
|
}
|
|
g.is_vlines_enabled = true
|
|
g.stmts(node.stmts)
|
|
if node.label.len > 0 {
|
|
g.writeln('${node.label}__continue: {}')
|
|
}
|
|
g.writeln('}')
|
|
g.indent--
|
|
g.writeln('}')
|
|
if node.label.len > 0 {
|
|
g.writeln('${node.label}__break: {}')
|
|
}
|
|
} else {
|
|
g.is_vlines_enabled = false
|
|
if node.label.len > 0 {
|
|
g.writeln('$node.label:')
|
|
}
|
|
g.write('for (')
|
|
if !node.has_init {
|
|
g.write('; ')
|
|
} else {
|
|
g.stmt(node.init)
|
|
// Remove excess return and add space
|
|
if g.out.last_n(1) == '\n' {
|
|
g.out.go_back(1)
|
|
g.empty_line = false
|
|
g.write(' ')
|
|
}
|
|
}
|
|
if node.has_cond {
|
|
g.expr(node.cond)
|
|
}
|
|
g.write('; ')
|
|
if node.has_inc {
|
|
g.stmt(node.inc)
|
|
}
|
|
g.writeln(') {')
|
|
g.is_vlines_enabled = true
|
|
g.stmts(node.stmts)
|
|
if node.label.len > 0 {
|
|
g.writeln('${node.label}__continue: {}')
|
|
}
|
|
g.writeln('}')
|
|
if node.label.len > 0 {
|
|
g.writeln('${node.label}__break: {}')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) for_stmt(node ast.ForStmt) {
|
|
g.is_vlines_enabled = false
|
|
if node.label.len > 0 {
|
|
g.writeln('$node.label:')
|
|
}
|
|
g.writeln('for (;;) {')
|
|
if !node.is_inf {
|
|
g.indent++
|
|
g.stmt_path_pos << g.out.len
|
|
g.write('if (!(')
|
|
g.expr(node.cond)
|
|
g.writeln(')) break;')
|
|
g.indent--
|
|
}
|
|
g.is_vlines_enabled = true
|
|
g.stmts(node.stmts)
|
|
if node.label.len > 0 {
|
|
g.writeln('\t${node.label}__continue: {}')
|
|
}
|
|
g.writeln('}')
|
|
if node.label.len > 0 {
|
|
g.writeln('${node.label}__break: {}')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) for_in_stmt(node ast.ForInStmt) {
|
|
if node.label.len > 0 {
|
|
g.writeln('\t$node.label: {}')
|
|
}
|
|
if node.is_range {
|
|
// `for x in 1..10 {`
|
|
i := if node.val_var == '_' { g.new_tmp_var() } else { c_name(node.val_var) }
|
|
val_typ := g.table.mktyp(node.val_type)
|
|
g.write('for (${g.typ(val_typ)} $i = ')
|
|
g.expr(node.cond)
|
|
g.write('; $i < ')
|
|
g.expr(node.high)
|
|
g.writeln('; ++$i) {')
|
|
} else if node.kind == .array {
|
|
// `for num in nums {`
|
|
g.writeln('// FOR IN array')
|
|
styp := g.typ(node.val_type)
|
|
val_sym := g.table.get_type_symbol(node.val_type)
|
|
mut cond_var := ''
|
|
if node.cond is ast.Ident || node.cond is ast.SelectorExpr {
|
|
cond_var = g.expr_string(node.cond)
|
|
} else {
|
|
cond_var = g.new_tmp_var()
|
|
g.write(g.typ(node.cond_type))
|
|
g.write(' $cond_var = ')
|
|
g.expr(node.cond)
|
|
g.writeln(';')
|
|
}
|
|
i := if node.key_var in ['', '_'] { g.new_tmp_var() } else { node.key_var }
|
|
field_accessor := if node.cond_type.is_ptr() { '->' } else { '.' }
|
|
share_accessor := if node.cond_type.share() == .shared_t { 'val.' } else { '' }
|
|
op_field := field_accessor + share_accessor
|
|
g.empty_line = true
|
|
g.writeln('for (int $i = 0; $i < $cond_var${op_field}len; ++$i) {')
|
|
if node.val_var != '_' {
|
|
if val_sym.kind == .function {
|
|
g.write('\t')
|
|
g.write_fn_ptr_decl(val_sym.info as ast.FnType, c_name(node.val_var))
|
|
g.writeln(' = ((voidptr*)$cond_var${op_field}data)[$i];')
|
|
} else if val_sym.kind == .array_fixed && !node.val_is_mut {
|
|
right := '(($styp*)$cond_var${op_field}data)[$i]'
|
|
g.writeln('\t$styp ${c_name(node.val_var)};')
|
|
g.writeln('\tmemcpy(*($styp*)${c_name(node.val_var)}, (byte*)$right, sizeof($styp));')
|
|
} else {
|
|
// If val is mutable (pointer behind the scenes), we need to generate
|
|
// `int* val = ((int*)arr.data) + i;`
|
|
// instead of
|
|
// `int* val = ((int**)arr.data)[i];`
|
|
// right := if node.val_is_mut { styp } else { styp + '*' }
|
|
right := if node.val_is_mut {
|
|
'(($styp)$cond_var${op_field}data) + $i'
|
|
} else {
|
|
'(($styp*)$cond_var${op_field}data)[$i]'
|
|
}
|
|
g.writeln('\t$styp ${c_name(node.val_var)} = $right;')
|
|
}
|
|
}
|
|
} else if node.kind == .array_fixed {
|
|
mut cond_var := ''
|
|
cond_type_is_ptr := node.cond_type.is_ptr()
|
|
cond_is_literal := node.cond is ast.ArrayInit
|
|
if cond_is_literal {
|
|
cond_var = g.new_tmp_var()
|
|
g.write(g.typ(node.cond_type))
|
|
g.write(' $cond_var = ')
|
|
g.expr(node.cond)
|
|
g.writeln(';')
|
|
} else if cond_type_is_ptr {
|
|
cond_var = g.new_tmp_var()
|
|
cond_var_type := g.typ(node.cond_type).trim('*')
|
|
if !node.cond.is_lvalue() {
|
|
g.write('$cond_var_type *$cond_var = (($cond_var_type)')
|
|
} else {
|
|
g.write('$cond_var_type *$cond_var = (')
|
|
}
|
|
g.expr(node.cond)
|
|
g.writeln(');')
|
|
} else {
|
|
cond_var = g.expr_string(node.cond)
|
|
}
|
|
idx := if node.key_var in ['', '_'] { g.new_tmp_var() } else { node.key_var }
|
|
cond_sym := g.table.get_type_symbol(node.cond_type)
|
|
info := cond_sym.info as ast.ArrayFixed
|
|
g.writeln('for (int $idx = 0; $idx != $info.size; ++$idx) {')
|
|
if node.val_var != '_' {
|
|
val_sym := g.table.get_type_symbol(node.val_type)
|
|
is_fixed_array := val_sym.kind == .array_fixed && !node.val_is_mut
|
|
if val_sym.kind == .function {
|
|
g.write('\t')
|
|
g.write_fn_ptr_decl(val_sym.info as ast.FnType, c_name(node.val_var))
|
|
} else if is_fixed_array {
|
|
styp := g.typ(node.val_type)
|
|
g.writeln('\t$styp ${c_name(node.val_var)};')
|
|
g.writeln('\tmemcpy(*($styp*)${c_name(node.val_var)}, (byte*)$cond_var[$idx], sizeof($styp));')
|
|
} else {
|
|
styp := g.typ(node.val_type)
|
|
g.write('\t$styp ${c_name(node.val_var)}')
|
|
}
|
|
if !is_fixed_array {
|
|
addr := if node.val_is_mut { '&' } else { '' }
|
|
if cond_type_is_ptr {
|
|
g.writeln(' = ${addr}(*$cond_var)[$idx];')
|
|
} else if cond_is_literal {
|
|
g.writeln(' = $addr$cond_var[$idx];')
|
|
} else {
|
|
g.write(' = $addr')
|
|
g.expr(node.cond)
|
|
g.writeln('[$idx];')
|
|
}
|
|
}
|
|
}
|
|
} else if node.kind == .map {
|
|
// `for key, val in map {
|
|
g.writeln('// FOR IN map')
|
|
mut cond_var := ''
|
|
if node.cond is ast.Ident {
|
|
cond_var = g.expr_string(node.cond)
|
|
} else {
|
|
cond_var = g.new_tmp_var()
|
|
g.write(g.typ(node.cond_type))
|
|
g.write(' $cond_var = ')
|
|
g.expr(node.cond)
|
|
g.writeln(';')
|
|
}
|
|
mut arw_or_pt := if node.cond_type.is_ptr() { '->' } else { '.' }
|
|
if node.cond_type.has_flag(.shared_f) {
|
|
arw_or_pt = '->val.'
|
|
}
|
|
idx := g.new_tmp_var()
|
|
map_len := g.new_tmp_var()
|
|
g.empty_line = true
|
|
g.writeln('int $map_len = $cond_var${arw_or_pt}key_values.len;')
|
|
g.writeln('for (int $idx = 0; $idx < $map_len; ++$idx ) {')
|
|
// TODO: don't have this check when the map has no deleted elements
|
|
g.indent++
|
|
diff := g.new_tmp_var()
|
|
g.writeln('int $diff = $cond_var${arw_or_pt}key_values.len - $map_len;')
|
|
g.writeln('$map_len = $cond_var${arw_or_pt}key_values.len;')
|
|
// TODO: optimize this
|
|
g.writeln('if ($diff < 0) {')
|
|
g.writeln('\t$idx = -1;')
|
|
g.writeln('\tcontinue;')
|
|
g.writeln('}')
|
|
g.writeln('if (!DenseArray_has_index(&$cond_var${arw_or_pt}key_values, $idx)) {continue;}')
|
|
if node.key_var != '_' {
|
|
key_styp := g.typ(node.key_type)
|
|
key := c_name(node.key_var)
|
|
g.writeln('$key_styp $key = /*key*/ *($key_styp*)DenseArray_key(&$cond_var${arw_or_pt}key_values, $idx);')
|
|
// TODO: analyze whether node.key_type has a .clone() method and call .clone() for all types:
|
|
if node.key_type == ast.string_type {
|
|
g.writeln('$key = string_clone($key);')
|
|
}
|
|
}
|
|
if node.val_var != '_' {
|
|
val_sym := g.table.get_type_symbol(node.val_type)
|
|
if val_sym.kind == .function {
|
|
g.write_fn_ptr_decl(val_sym.info as ast.FnType, c_name(node.val_var))
|
|
g.write(' = (*(voidptr*)')
|
|
g.writeln('DenseArray_value(&$cond_var${arw_or_pt}key_values, $idx));')
|
|
} else if val_sym.kind == .array_fixed && !node.val_is_mut {
|
|
val_styp := g.typ(node.val_type)
|
|
g.writeln('$val_styp ${c_name(node.val_var)};')
|
|
g.writeln('memcpy(*($val_styp*)${c_name(node.val_var)}, (byte*)DenseArray_value(&$cond_var${arw_or_pt}key_values, $idx), sizeof($val_styp));')
|
|
} else {
|
|
val_styp := g.typ(node.val_type)
|
|
if node.val_type.is_ptr() {
|
|
g.write('$val_styp ${c_name(node.val_var)} = &(*($val_styp)')
|
|
} else {
|
|
g.write('$val_styp ${c_name(node.val_var)} = (*($val_styp*)')
|
|
}
|
|
g.writeln('DenseArray_value(&$cond_var${arw_or_pt}key_values, $idx));')
|
|
}
|
|
}
|
|
g.indent--
|
|
} else if node.kind == .string {
|
|
cond := if node.cond is ast.StringLiteral || node.cond is ast.StringInterLiteral {
|
|
ast.Expr(g.new_ctemp_var_then_gen(node.cond, ast.string_type))
|
|
} else {
|
|
node.cond
|
|
}
|
|
i := if node.key_var in ['', '_'] { g.new_tmp_var() } else { node.key_var }
|
|
g.write('for (int $i = 0; $i < ')
|
|
g.expr(cond)
|
|
g.writeln('.len; ++$i) {')
|
|
if node.val_var != '_' {
|
|
g.write('\tbyte ${c_name(node.val_var)} = ')
|
|
g.expr(cond)
|
|
g.writeln('.str[$i];')
|
|
}
|
|
} else if node.kind == .struct_ {
|
|
cond_type_sym := g.table.get_type_symbol(node.cond_type)
|
|
next_fn := cond_type_sym.find_method('next') or {
|
|
verror('`next` method not found')
|
|
return
|
|
}
|
|
ret_typ := next_fn.return_type
|
|
t_expr := g.new_tmp_var()
|
|
g.write('${g.typ(node.cond_type)} $t_expr = ')
|
|
g.expr(node.cond)
|
|
g.writeln(';')
|
|
g.writeln('while (1) {')
|
|
t_var := g.new_tmp_var()
|
|
receiver_typ := next_fn.params[0].typ
|
|
receiver_styp := g.typ(receiver_typ)
|
|
fn_name := receiver_styp.replace_each(['*', '', '.', '__']) + '_next'
|
|
g.write('\t${g.typ(ret_typ)} $t_var = ${fn_name}(')
|
|
if !node.cond_type.is_ptr() && receiver_typ.is_ptr() {
|
|
g.write('&')
|
|
}
|
|
g.writeln('$t_expr);')
|
|
g.writeln('\tif (${t_var}.state != 0) break;')
|
|
val := if node.val_var in ['', '_'] { g.new_tmp_var() } else { node.val_var }
|
|
val_styp := g.typ(node.val_type)
|
|
g.writeln('\t$val_styp $val = *($val_styp*)${t_var}.data;')
|
|
} else {
|
|
typ_str := g.table.type_to_str(node.cond_type)
|
|
g.error('for in: unhandled symbol `$node.cond` of type `$typ_str`', node.pos)
|
|
}
|
|
g.stmts(node.stmts)
|
|
if node.label.len > 0 {
|
|
g.writeln('\t${node.label}__continue: {}')
|
|
}
|
|
|
|
if node.kind == .map {
|
|
// diff := g.new_tmp_var()
|
|
// g.writeln('int $diff = $cond_var${arw_or_pt}key_values.len - $map_len;')
|
|
// g.writeln('if ($diff < 0) {')
|
|
// g.writeln('\t$idx = -1;')
|
|
// g.writeln('\t$map_len = $cond_var${arw_or_pt}key_values.len;')
|
|
// g.writeln('}')
|
|
}
|
|
|
|
g.writeln('}')
|
|
if node.label.len > 0 {
|
|
g.writeln('\t${node.label}__break: {}')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) write_sumtype_casting_fn(got_ ast.Type, exp_ ast.Type) {
|
|
got, exp := got_.idx(), exp_.idx()
|
|
i := got | (exp << 16)
|
|
if got == exp || g.sumtype_definitions[i] {
|
|
return
|
|
}
|
|
g.sumtype_definitions[i] = true
|
|
got_sym := g.table.get_type_symbol(got)
|
|
exp_sym := g.table.get_type_symbol(exp)
|
|
mut sb := strings.new_builder(128)
|
|
got_cname, exp_cname := got_sym.cname, exp_sym.cname
|
|
sb.writeln('static inline $exp_cname ${got_cname}_to_sumtype_${exp_cname}($got_cname* x) {')
|
|
sb.writeln('\t$got_cname* ptr = memdup(x, sizeof($got_cname));')
|
|
sb.write_string('\treturn ($exp_cname){ ._$got_cname = ptr, ._typ = ${g.type_sidx(got)}')
|
|
for field in (exp_sym.info as ast.SumType).fields {
|
|
field_styp := g.typ(field.typ)
|
|
if got_sym.kind in [.sum_type, .interface_] {
|
|
// the field is already a wrapped pointer; we shouldn't wrap it once again
|
|
sb.write_string(', .$field.name = ptr->$field.name')
|
|
} else {
|
|
sb.write_string(', .$field.name = ($field_styp*)((char*)ptr + __offsetof_ptr(ptr, $got_cname, $field.name))')
|
|
}
|
|
}
|
|
sb.writeln('};\n}')
|
|
g.auto_fn_definitions << sb.str()
|
|
}
|
|
|
|
fn (mut g Gen) call_cfn_for_casting_expr(fname string, expr ast.Expr, exp_is_ptr bool, exp_styp string, got_is_ptr bool, got_styp string) {
|
|
mut rparen_n := 1
|
|
if exp_is_ptr {
|
|
g.write('HEAP($exp_styp, ')
|
|
rparen_n++
|
|
}
|
|
g.write('${fname}(')
|
|
if !got_is_ptr {
|
|
if !expr.is_lvalue()
|
|
|| (expr is ast.Ident && is_simple_define_const((expr as ast.Ident).obj)) {
|
|
g.write('ADDR($got_styp, (')
|
|
rparen_n += 2
|
|
} else {
|
|
g.write('&')
|
|
}
|
|
}
|
|
g.expr(expr)
|
|
g.write(')'.repeat(rparen_n))
|
|
}
|
|
|
|
// use instead of expr() when you need to cast to a different type
|
|
fn (mut g Gen) expr_with_cast(expr ast.Expr, got_type_raw ast.Type, expected_type ast.Type) {
|
|
got_type := g.table.mktyp(got_type_raw)
|
|
exp_sym := g.table.get_type_symbol(expected_type)
|
|
expected_is_ptr := expected_type.is_ptr()
|
|
got_is_ptr := got_type.is_ptr()
|
|
got_sym := g.table.get_type_symbol(got_type)
|
|
// allow using the new Error struct as a string, to avoid a breaking change
|
|
// TODO: temporary to allow people to migrate their code; remove soon
|
|
if got_type == ast.error_type_idx && expected_type == ast.string_type_idx {
|
|
g.write('(*(')
|
|
g.expr(expr)
|
|
g.write('.msg))')
|
|
return
|
|
}
|
|
if exp_sym.kind == .interface_ && got_type_raw.idx() != expected_type.idx()
|
|
&& !expected_type.has_flag(.optional) {
|
|
got_styp := g.cc_type(got_type, true)
|
|
exp_styp := g.cc_type(expected_type, true)
|
|
fname := 'I_${got_styp}_to_Interface_$exp_styp'
|
|
g.call_cfn_for_casting_expr(fname, expr, expected_is_ptr, exp_styp, got_is_ptr,
|
|
got_styp)
|
|
return
|
|
}
|
|
// cast to sum type
|
|
exp_styp := g.typ(expected_type)
|
|
got_styp := g.typ(got_type)
|
|
if expected_type != ast.void_type {
|
|
expected_deref_type := if expected_is_ptr { expected_type.deref() } else { expected_type }
|
|
got_deref_type := if got_is_ptr { got_type.deref() } else { got_type }
|
|
if g.table.sumtype_has_variant(expected_deref_type, got_deref_type) {
|
|
mut is_already_sum_type := false
|
|
scope := g.file.scope.innermost(expr.position().pos)
|
|
if expr is ast.Ident {
|
|
if v := scope.find_var(expr.name) {
|
|
if v.smartcasts.len > 0 {
|
|
is_already_sum_type = true
|
|
}
|
|
}
|
|
} else if expr is ast.SelectorExpr {
|
|
if _ := scope.find_struct_field(expr.expr_type, expr.field_name) {
|
|
is_already_sum_type = true
|
|
}
|
|
}
|
|
if is_already_sum_type {
|
|
// Don't create a new sum type wrapper if there is already one
|
|
g.prevent_sum_type_unwrapping_once = true
|
|
g.expr(expr)
|
|
} else {
|
|
g.write_sumtype_casting_fn(got_type, expected_type)
|
|
fname := '${got_sym.cname}_to_sumtype_$exp_sym.cname'
|
|
g.call_cfn_for_casting_expr(fname, expr, expected_is_ptr, exp_sym.cname,
|
|
got_is_ptr, got_styp)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
// Generic dereferencing logic
|
|
neither_void := ast.voidptr_type !in [got_type, expected_type]
|
|
to_shared := expected_type.has_flag(.shared_f) && !got_type_raw.has_flag(.shared_f)
|
|
&& !expected_type.has_flag(.optional)
|
|
// from_shared := got_type_raw.has_flag(.shared_f) && !expected_type.has_flag(.shared_f)
|
|
if to_shared {
|
|
shared_styp := exp_styp[0..exp_styp.len - 1] // `shared` implies ptr, so eat one `*`
|
|
if got_type_raw.is_ptr() {
|
|
g.error('cannot convert reference to `shared`', expr.position())
|
|
}
|
|
if exp_sym.kind == .array {
|
|
g.writeln('($shared_styp*)__dup_shared_array(&($shared_styp){.mtx = {0}, .val =')
|
|
} else if exp_sym.kind == .map {
|
|
g.writeln('($shared_styp*)__dup_shared_map(&($shared_styp){.mtx = {0}, .val =')
|
|
} else {
|
|
g.writeln('($shared_styp*)__dup${shared_styp}(&($shared_styp){.mtx = {0}, .val =')
|
|
}
|
|
g.expr(expr)
|
|
g.writeln('}, sizeof($shared_styp))')
|
|
return
|
|
}
|
|
if got_is_ptr && !expected_is_ptr && neither_void
|
|
&& exp_sym.kind !in [.interface_, .placeholder] && expr !is ast.InfixExpr {
|
|
got_deref_type := got_type.deref()
|
|
deref_sym := g.table.get_type_symbol(got_deref_type)
|
|
deref_will_match := expected_type in [got_type, got_deref_type, deref_sym.parent_idx]
|
|
got_is_opt := got_type.has_flag(.optional)
|
|
if deref_will_match || got_is_opt {
|
|
g.write('*')
|
|
}
|
|
}
|
|
if expected_type.has_flag(.optional) && expr is ast.None {
|
|
g.gen_optional_error(expected_type, expr)
|
|
return
|
|
}
|
|
if expr is ast.IntegerLiteral {
|
|
if expected_type in [ast.u64_type, ast.u32_type, ast.u16_type] && expr.val[0] != `-` {
|
|
g.expr(expr)
|
|
g.write('U')
|
|
return
|
|
}
|
|
}
|
|
if exp_sym.kind == .function {
|
|
g.write('(voidptr)')
|
|
}
|
|
// no cast
|
|
g.expr(expr)
|
|
}
|
|
|
|
// cestring returns a V string, properly escaped for embeddeding in a C string literal.
|
|
fn cestring(s string) string {
|
|
return s.replace('\\', '\\\\').replace('"', "'")
|
|
}
|
|
|
|
// ctoslit returns a '_SLIT("$s")' call, where s is properly escaped.
|
|
fn ctoslit(s string) string {
|
|
return '_SLIT("' + cestring(s) + '")'
|
|
}
|
|
|
|
fn (mut g Gen) gen_attrs(attrs []ast.Attr) {
|
|
if g.pref.skip_unused {
|
|
return
|
|
}
|
|
for attr in attrs {
|
|
g.writeln('// Attr: [$attr.name]')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) gen_asm_stmt(stmt ast.AsmStmt) {
|
|
g.write('__asm__')
|
|
if stmt.is_volatile {
|
|
g.write(' volatile')
|
|
}
|
|
if stmt.is_goto {
|
|
g.write(' goto')
|
|
}
|
|
g.writeln(' (')
|
|
g.indent++
|
|
for template_tmp in stmt.templates {
|
|
mut template := template_tmp
|
|
g.write('"')
|
|
if template.is_directive {
|
|
g.write('.')
|
|
}
|
|
g.write(template.name)
|
|
if template.is_label {
|
|
g.write(':')
|
|
} else {
|
|
g.write(' ')
|
|
}
|
|
// swap destionation and operands for att syntax
|
|
if template.args.len != 0 {
|
|
template.args.prepend(template.args[template.args.len - 1])
|
|
template.args.delete(template.args.len - 1)
|
|
}
|
|
|
|
for i, arg in template.args {
|
|
g.asm_arg(arg, stmt)
|
|
if i + 1 < template.args.len {
|
|
g.write(', ')
|
|
}
|
|
}
|
|
|
|
if !template.is_label {
|
|
g.write(';')
|
|
}
|
|
g.writeln('"')
|
|
}
|
|
if !stmt.is_top_level {
|
|
g.write(': ')
|
|
}
|
|
g.gen_asm_ios(stmt.output)
|
|
if stmt.input.len != 0 || stmt.clobbered.len != 0 || stmt.is_goto {
|
|
g.write(': ')
|
|
}
|
|
g.gen_asm_ios(stmt.input)
|
|
if stmt.clobbered.len != 0 || stmt.is_goto {
|
|
g.write(': ')
|
|
}
|
|
for i, clob in stmt.clobbered {
|
|
g.write('"')
|
|
g.write(clob.reg.name)
|
|
g.write('"')
|
|
if i + 1 < stmt.clobbered.len {
|
|
g.writeln(',')
|
|
} else {
|
|
g.writeln('')
|
|
}
|
|
}
|
|
if stmt.is_goto {
|
|
g.write(': ')
|
|
}
|
|
for i, label in stmt.global_labels {
|
|
g.write(label)
|
|
if i + 1 < stmt.clobbered.len {
|
|
g.writeln(',')
|
|
} else {
|
|
g.writeln('')
|
|
}
|
|
}
|
|
g.indent--
|
|
g.writeln(');')
|
|
}
|
|
|
|
fn (mut g Gen) asm_arg(arg ast.AsmArg, stmt ast.AsmStmt) {
|
|
match arg {
|
|
ast.AsmAlias {
|
|
name := arg.name
|
|
if name in stmt.local_labels || name in stmt.global_labels
|
|
|| name in g.file.global_labels || stmt.is_top_level {
|
|
asm_formatted_name := if name in stmt.global_labels { '%l[$name]' } else { name }
|
|
g.write(asm_formatted_name)
|
|
} else {
|
|
g.write('%[$name]')
|
|
}
|
|
}
|
|
ast.CharLiteral {
|
|
g.write("'$arg.val'")
|
|
}
|
|
ast.IntegerLiteral, ast.FloatLiteral {
|
|
g.write('\$$arg.val')
|
|
}
|
|
ast.BoolLiteral {
|
|
g.write('\$$arg.val.str()')
|
|
}
|
|
ast.AsmRegister {
|
|
if !stmt.is_top_level {
|
|
g.write('%') // escape percent in extended assembly
|
|
}
|
|
g.write('%$arg.name')
|
|
}
|
|
ast.AsmAddressing {
|
|
base := arg.base
|
|
index := arg.index
|
|
displacement := arg.displacement
|
|
scale := arg.scale
|
|
match arg.mode {
|
|
.base {
|
|
g.write('(')
|
|
g.asm_arg(base, stmt)
|
|
g.write(')')
|
|
}
|
|
.displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('()')
|
|
}
|
|
.base_plus_displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('(')
|
|
g.asm_arg(base, stmt)
|
|
g.write(')')
|
|
}
|
|
.index_times_scale_plus_displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('(')
|
|
g.asm_arg(index, stmt)
|
|
g.write(',$scale)')
|
|
}
|
|
.base_plus_index_plus_displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('(')
|
|
g.asm_arg(base, stmt)
|
|
g.write(',')
|
|
g.asm_arg(index, stmt)
|
|
g.write(',1)')
|
|
}
|
|
.base_plus_index_times_scale_plus_displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('(')
|
|
g.asm_arg(base, stmt)
|
|
g.write(',')
|
|
g.asm_arg(index, stmt)
|
|
g.write(',$scale)')
|
|
}
|
|
.rip_plus_displacement {
|
|
g.asm_arg(displacement, stmt)
|
|
g.write('(')
|
|
g.asm_arg(base, stmt)
|
|
g.write(')')
|
|
}
|
|
.invalid {
|
|
g.error('invalid addressing mode', arg.pos)
|
|
}
|
|
}
|
|
}
|
|
ast.AsmDisp {
|
|
if arg.val.len >= 2 && arg.val[0] in [`b`, `f`] {
|
|
mut is_digit := true
|
|
for c in arg.val[1..] {
|
|
if !c.is_digit() {
|
|
is_digit = false
|
|
break
|
|
}
|
|
}
|
|
if is_digit {
|
|
g.write(arg.val[1..] + rune(arg.val[0]).str())
|
|
} else {
|
|
g.write(arg.val)
|
|
}
|
|
} else {
|
|
g.write(arg.val)
|
|
}
|
|
}
|
|
string {
|
|
g.write('$arg')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) gen_asm_ios(ios []ast.AsmIO) {
|
|
for i, io in ios {
|
|
if io.alias != '' {
|
|
g.write('[$io.alias] ')
|
|
}
|
|
g.write('"$io.constraint" (')
|
|
g.expr(io.expr)
|
|
g.write(')')
|
|
if i + 1 < ios.len {
|
|
g.writeln(',')
|
|
} else {
|
|
g.writeln('')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn cnewlines(s string) string {
|
|
return s.replace('\n', r'\n')
|
|
}
|
|
|
|
fn (mut g Gen) write_fn_ptr_decl(func &ast.FnType, ptr_name string) {
|
|
ret_styp := g.typ(func.func.return_type)
|
|
g.write('$ret_styp (*$ptr_name) (')
|
|
arg_len := func.func.params.len
|
|
for i, arg in func.func.params {
|
|
arg_styp := g.typ(arg.typ)
|
|
g.write('$arg_styp $arg.name')
|
|
if i < arg_len - 1 {
|
|
g.write(', ')
|
|
}
|
|
}
|
|
g.write(')')
|
|
}
|
|
|
|
// TODO this function is scary. Simplify/split up.
|
|
fn (mut g Gen) gen_assign_stmt(assign_stmt ast.AssignStmt) {
|
|
if assign_stmt.is_static {
|
|
g.write('static ')
|
|
}
|
|
mut return_type := ast.void_type
|
|
is_decl := assign_stmt.op == .decl_assign
|
|
op := if is_decl { token.Kind.assign } else { assign_stmt.op }
|
|
right_expr := assign_stmt.right[0]
|
|
match right_expr {
|
|
ast.CallExpr { return_type = right_expr.return_type }
|
|
ast.LockExpr { return_type = right_expr.typ }
|
|
ast.MatchExpr { return_type = right_expr.return_type }
|
|
ast.IfExpr { return_type = right_expr.typ }
|
|
else {}
|
|
}
|
|
// Free the old value assigned to this string var (only if it's `str = [new value]`
|
|
// or `x.str = [new value]` )
|
|
mut af := g.is_autofree && !g.is_builtin_mod && assign_stmt.op == .assign
|
|
&& assign_stmt.left_types.len == 1
|
|
&& (assign_stmt.left[0] is ast.Ident || assign_stmt.left[0] is ast.SelectorExpr)
|
|
// assign_stmt.left_types[0] in [ast.string_type, ast.array_type] &&
|
|
mut sref_name := ''
|
|
mut type_to_free := ''
|
|
if af {
|
|
first_left_type := assign_stmt.left_types[0]
|
|
first_left_sym := g.table.get_type_symbol(assign_stmt.left_types[0])
|
|
if first_left_type == ast.string_type || first_left_sym.kind == .array {
|
|
type_to_free = if first_left_type == ast.string_type { 'string' } else { 'array' }
|
|
mut ok := true
|
|
left0 := assign_stmt.left[0]
|
|
if left0 is ast.Ident {
|
|
if left0.name == '_' {
|
|
ok = false
|
|
}
|
|
}
|
|
if ok {
|
|
sref_name = '_sref$assign_stmt.pos.pos'
|
|
g.write('$type_to_free $sref_name = (') // TODO we are copying the entire string here, optimize
|
|
// we can't just do `.str` since we need the extra data from the string struct
|
|
// doing `&string` is also not an option since the stack memory with the data will be overwritten
|
|
g.expr(left0) // assign_stmt.left[0])
|
|
g.writeln('); // free $type_to_free on re-assignment2')
|
|
defer {
|
|
if af {
|
|
g.writeln('${type_to_free}_free(&$sref_name);')
|
|
}
|
|
}
|
|
} else {
|
|
af = false
|
|
}
|
|
} else {
|
|
af = false
|
|
}
|
|
}
|
|
// Autofree tmp arg vars
|
|
// first_right := assign_stmt.right[0]
|
|
// af := g.autofree && first_right is ast.CallExpr && !g.is_builtin_mod
|
|
// if af {
|
|
// g.autofree_call_pregen(first_right as ast.CallExpr)
|
|
// }
|
|
//
|
|
//
|
|
// Handle optionals. We need to declare a temp variable for them, that's why they are handled
|
|
// here, not in call_expr().
|
|
// `pos := s.index('x') or { return }`
|
|
// ==========>
|
|
// Option_int _t190 = string_index(s, _STR("x")); // _STR() no more used!!
|
|
// if (_t190.state != 2) {
|
|
// Error err = _t190.err;
|
|
// return;
|
|
// }
|
|
// int pos = *(int*)_t190.data;
|
|
// mut tmp_opt := ''
|
|
/*
|
|
is_optional := false && g.is_autofree && (assign_stmt.op in [.decl_assign, .assign])
|
|
&& assign_stmt.left_types.len == 1 && assign_stmt.right[0] is ast.CallExpr
|
|
if is_optional {
|
|
// g.write('/* optional assignment */')
|
|
call_expr := assign_stmt.right[0] as ast.CallExpr
|
|
if call_expr.or_block.kind != .absent {
|
|
styp := g.typ(call_expr.return_type.set_flag(.optional))
|
|
tmp_opt = g.new_tmp_var()
|
|
g.write('/*AF opt*/$styp $tmp_opt = ')
|
|
g.expr(assign_stmt.right[0])
|
|
g.or_block(tmp_opt, call_expr.or_block, call_expr.return_type)
|
|
g.writeln('/*=============ret*/')
|
|
// if af && is_optional {
|
|
// g.autofree_call_postgen()
|
|
// }
|
|
// return
|
|
}
|
|
}
|
|
*/
|
|
// json_test failed w/o this check
|
|
if return_type != ast.void_type && return_type != 0 {
|
|
sym := g.table.get_type_symbol(return_type)
|
|
if sym.kind == .multi_return {
|
|
// multi return
|
|
// TODO Handle in if_expr
|
|
is_opt := return_type.has_flag(.optional)
|
|
mr_var_name := 'mr_$assign_stmt.pos.pos'
|
|
mr_styp := g.typ(return_type)
|
|
g.write('$mr_styp $mr_var_name = ')
|
|
g.expr(assign_stmt.right[0])
|
|
g.writeln(';')
|
|
for i, lx in assign_stmt.left {
|
|
mut is_auto_heap := false
|
|
mut ident := ast.Ident{
|
|
scope: 0
|
|
}
|
|
if lx is ast.Ident {
|
|
ident = lx
|
|
if lx.kind == .blank_ident {
|
|
continue
|
|
}
|
|
if lx.obj is ast.Var {
|
|
is_auto_heap = lx.obj.is_auto_heap
|
|
}
|
|
}
|
|
styp := if ident.name in g.defer_vars {
|
|
''
|
|
} else {
|
|
g.typ(assign_stmt.left_types[i])
|
|
}
|
|
if assign_stmt.op == .decl_assign {
|
|
g.write('$styp ')
|
|
if is_auto_heap {
|
|
g.write('*')
|
|
}
|
|
}
|
|
g.expr(lx)
|
|
noscan := if is_auto_heap { g.check_noscan(return_type) } else { '' }
|
|
if is_opt {
|
|
mr_base_styp := g.base_type(return_type)
|
|
if is_auto_heap {
|
|
g.writeln(' = HEAP${noscan}($mr_base_styp, *($mr_base_styp*)${mr_var_name}.data).arg$i);')
|
|
} else {
|
|
g.writeln(' = (*($mr_base_styp*)${mr_var_name}.data).arg$i;')
|
|
}
|
|
} else {
|
|
if is_auto_heap {
|
|
g.writeln(' = HEAP${noscan}($styp, ${mr_var_name}.arg$i);')
|
|
} else {
|
|
g.writeln(' = ${mr_var_name}.arg$i;')
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
}
|
|
// TODO: non idents on left (exprs)
|
|
if assign_stmt.has_cross_var {
|
|
for i, left in assign_stmt.left {
|
|
match left {
|
|
ast.Ident {
|
|
left_typ := assign_stmt.left_types[i]
|
|
left_sym := g.table.get_type_symbol(left_typ)
|
|
if left_sym.kind == .function {
|
|
g.write_fn_ptr_decl(left_sym.info as ast.FnType, '_var_$left.pos.pos')
|
|
g.writeln(' = $left.name;')
|
|
} else {
|
|
styp := g.typ(left_typ)
|
|
g.writeln('$styp _var_$left.pos.pos = $left.name;')
|
|
}
|
|
}
|
|
ast.IndexExpr {
|
|
sym := g.table.get_type_symbol(left.left_type)
|
|
if sym.kind == .array {
|
|
info := sym.info as ast.Array
|
|
elem_typ := g.table.get_type_symbol(info.elem_type)
|
|
if elem_typ.kind == .function {
|
|
left_typ := assign_stmt.left_types[i]
|
|
left_sym := g.table.get_type_symbol(left_typ)
|
|
g.write_fn_ptr_decl(left_sym.info as ast.FnType, '_var_$left.pos.pos')
|
|
g.write(' = *(voidptr*)array_get(')
|
|
} else {
|
|
styp := g.typ(info.elem_type)
|
|
g.write('$styp _var_$left.pos.pos = *($styp*)array_get(')
|
|
}
|
|
if left.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
needs_clone := info.elem_type == ast.string_type && g.is_autofree
|
|
if needs_clone {
|
|
g.write('/*1*/string_clone(')
|
|
}
|
|
g.expr(left.left)
|
|
if needs_clone {
|
|
g.write(')')
|
|
}
|
|
g.write(', ')
|
|
g.expr(left.index)
|
|
g.writeln(');')
|
|
} else if sym.kind == .map {
|
|
info := sym.info as ast.Map
|
|
skeytyp := g.typ(info.key_type)
|
|
styp := g.typ(info.value_type)
|
|
zero := g.type_default(info.value_type)
|
|
val_typ := g.table.get_type_symbol(info.value_type)
|
|
if val_typ.kind == .function {
|
|
left_type := assign_stmt.left_types[i]
|
|
left_sym := g.table.get_type_symbol(left_type)
|
|
g.write_fn_ptr_decl(left_sym.info as ast.FnType, '_var_$left.pos.pos')
|
|
g.write(' = *(voidptr*)map_get(')
|
|
} else {
|
|
g.write('$styp _var_$left.pos.pos = *($styp*)map_get(')
|
|
}
|
|
if !left.left_type.is_ptr() {
|
|
g.write('ADDR(map, ')
|
|
g.expr(left.left)
|
|
g.write(')')
|
|
} else {
|
|
g.expr(left.left)
|
|
}
|
|
g.write(', &($skeytyp[]){')
|
|
g.expr(left.index)
|
|
g.write('}')
|
|
if val_typ.kind == .function {
|
|
g.writeln(', &(voidptr[]){ $zero });')
|
|
} else {
|
|
g.writeln(', &($styp[]){ $zero });')
|
|
}
|
|
}
|
|
}
|
|
ast.SelectorExpr {
|
|
styp := g.typ(left.typ)
|
|
g.write('$styp _var_$left.pos.pos = ')
|
|
g.expr(left.expr)
|
|
if left.expr_type.is_ptr() {
|
|
g.write('/* left.expr_type */')
|
|
g.writeln('->$left.field_name;')
|
|
} else {
|
|
g.writeln('.$left.field_name;')
|
|
}
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
}
|
|
// `a := 1` | `a,b := 1,2`
|
|
for i, left in assign_stmt.left {
|
|
mut is_auto_heap := false
|
|
mut var_type := assign_stmt.left_types[i]
|
|
mut val_type := assign_stmt.right_types[i]
|
|
val := assign_stmt.right[i]
|
|
mut is_call := false
|
|
mut blank_assign := false
|
|
mut ident := ast.Ident{
|
|
scope: 0
|
|
}
|
|
left_sym := g.table.get_type_symbol(var_type)
|
|
if left is ast.Ident {
|
|
ident = left
|
|
// id_info := ident.var_info()
|
|
// var_type = id_info.typ
|
|
blank_assign = left.kind == .blank_ident
|
|
// TODO: temporary, remove this
|
|
left_info := left.info
|
|
if left_info is ast.IdentVar {
|
|
share := left_info.share
|
|
if share == .shared_t {
|
|
var_type = var_type.set_flag(.shared_f)
|
|
}
|
|
if share == .atomic_t {
|
|
var_type = var_type.set_flag(.atomic_f)
|
|
}
|
|
}
|
|
if left.obj is ast.Var {
|
|
is_auto_heap = left.obj.is_auto_heap
|
|
}
|
|
}
|
|
styp := if ident.name in g.defer_vars { '' } else { g.typ(var_type) }
|
|
mut is_fixed_array_init := false
|
|
mut has_val := false
|
|
match val {
|
|
ast.ArrayInit {
|
|
is_fixed_array_init = val.is_fixed
|
|
has_val = val.has_val
|
|
}
|
|
ast.CallExpr {
|
|
is_call = true
|
|
return_type = val.return_type
|
|
}
|
|
// TODO: no buffer fiddling
|
|
ast.AnonFn {
|
|
if blank_assign {
|
|
g.write('{')
|
|
}
|
|
// if it's a decl assign (`:=`) or a blank assignment `_ =`/`_ :=` then generate `void (*ident) (args) =`
|
|
if (is_decl || blank_assign) && left is ast.Ident {
|
|
ret_styp := g.typ(val.decl.return_type)
|
|
g.write('$ret_styp (*$ident.name) (')
|
|
def_pos := g.definitions.len
|
|
g.fn_args(val.decl.params, val.decl.is_variadic)
|
|
g.definitions.go_back(g.definitions.len - def_pos)
|
|
g.write(') = ')
|
|
} else {
|
|
g.is_assign_lhs = true
|
|
g.assign_op = assign_stmt.op
|
|
g.expr(left)
|
|
g.is_assign_lhs = false
|
|
g.is_arraymap_set = false
|
|
if left is ast.IndexExpr {
|
|
sym := g.table.get_type_symbol(left.left_type)
|
|
if sym.kind in [.map, .array] {
|
|
g.expr(val)
|
|
g.writeln('});')
|
|
continue
|
|
}
|
|
}
|
|
g.write(' = ')
|
|
}
|
|
g.expr(val)
|
|
g.writeln(';')
|
|
if blank_assign {
|
|
g.write('}')
|
|
}
|
|
continue
|
|
}
|
|
else {}
|
|
}
|
|
right_sym := g.table.get_type_symbol(g.unwrap_generic(val_type))
|
|
is_fixed_array_copy := right_sym.kind == .array_fixed && val is ast.Ident
|
|
g.is_assign_lhs = true
|
|
g.assign_op = assign_stmt.op
|
|
if val_type.has_flag(.optional) {
|
|
g.right_is_opt = true
|
|
}
|
|
if blank_assign {
|
|
if is_call {
|
|
old_is_void_expr_stmt := g.is_void_expr_stmt
|
|
g.is_void_expr_stmt = true
|
|
g.expr(val)
|
|
g.is_void_expr_stmt = old_is_void_expr_stmt
|
|
} else {
|
|
g.write('{$styp _ = ')
|
|
g.expr(val)
|
|
g.writeln(';}')
|
|
}
|
|
} else if is_fixed_array_init && assign_stmt.op == .assign {
|
|
right := val as ast.ArrayInit
|
|
v_var := g.new_tmp_var()
|
|
arr_typ := styp.trim('*')
|
|
g.write('$arr_typ $v_var = ')
|
|
g.expr(right)
|
|
g.writeln(';')
|
|
pos := g.out.len
|
|
g.expr(left)
|
|
|
|
if g.is_arraymap_set && g.arraymap_set_pos > 0 {
|
|
g.out.go_back_to(g.arraymap_set_pos)
|
|
g.write(', &$v_var)')
|
|
g.is_arraymap_set = false
|
|
g.arraymap_set_pos = 0
|
|
} else {
|
|
g.out.go_back_to(pos)
|
|
is_var_mut := !is_decl && left.is_auto_deref_var()
|
|
addr := if is_var_mut { '' } else { '&' }
|
|
g.writeln('')
|
|
g.write('memcpy($addr')
|
|
g.expr(left)
|
|
g.writeln(', &$v_var, sizeof($arr_typ));')
|
|
}
|
|
g.is_assign_lhs = false
|
|
} else {
|
|
is_inside_ternary := g.inside_ternary != 0
|
|
cur_line := if is_inside_ternary && is_decl {
|
|
g.register_ternary_name(ident.name)
|
|
g.empty_line = false
|
|
g.go_before_ternary()
|
|
} else {
|
|
''
|
|
}
|
|
mut str_add := false
|
|
mut op_overloaded := false
|
|
if var_type == ast.string_type_idx && assign_stmt.op == .plus_assign {
|
|
if left is ast.IndexExpr {
|
|
// a[0] += str => `array_set(&a, 0, &(string[]) {string__plus(...))})`
|
|
g.expr(left)
|
|
g.write('string__plus(')
|
|
} else {
|
|
// str += str2 => `str = string__plus(str, str2)`
|
|
g.expr(left)
|
|
g.write(' = /*f*/string__plus(')
|
|
}
|
|
g.is_assign_lhs = false
|
|
str_add = true
|
|
}
|
|
// Assignment Operator Overloading
|
|
if ((left_sym.kind == .struct_ && right_sym.kind == .struct_)
|
|
|| (left_sym.kind == .alias && right_sym.kind == .alias))
|
|
&& assign_stmt.op in [.plus_assign, .minus_assign, .div_assign, .mult_assign, .mod_assign] {
|
|
extracted_op := match assign_stmt.op {
|
|
.plus_assign { '+' }
|
|
.minus_assign { '-' }
|
|
.div_assign { '/' }
|
|
.mod_assign { '%' }
|
|
.mult_assign { '*' }
|
|
else { 'unknown op' }
|
|
}
|
|
g.expr(left)
|
|
g.write(' = ${styp}_${util.replace_op(extracted_op)}(')
|
|
op_overloaded = true
|
|
}
|
|
if right_sym.kind == .function && is_decl {
|
|
if is_inside_ternary && is_decl {
|
|
g.out.write_string(util.tabs(g.indent - g.inside_ternary))
|
|
}
|
|
func := right_sym.info as ast.FnType
|
|
ret_styp := g.typ(func.func.return_type)
|
|
g.write('$ret_styp (*${g.get_ternary_name(ident.name)}) (')
|
|
def_pos := g.definitions.len
|
|
g.fn_args(func.func.params, func.func.is_variadic)
|
|
g.definitions.go_back(g.definitions.len - def_pos)
|
|
g.write(')')
|
|
} else {
|
|
if is_decl {
|
|
if is_inside_ternary {
|
|
g.out.write_string(util.tabs(g.indent - g.inside_ternary))
|
|
}
|
|
g.write('$styp ')
|
|
if is_auto_heap {
|
|
g.write('*')
|
|
}
|
|
}
|
|
if left is ast.Ident || left is ast.SelectorExpr {
|
|
g.prevent_sum_type_unwrapping_once = true
|
|
}
|
|
if !is_fixed_array_copy || is_decl {
|
|
if !is_decl && left.is_auto_deref_var() {
|
|
g.write('*')
|
|
}
|
|
g.expr(left)
|
|
}
|
|
}
|
|
if is_inside_ternary && is_decl {
|
|
g.write(';\n$cur_line')
|
|
g.out.write_string(util.tabs(g.indent))
|
|
g.expr(left)
|
|
}
|
|
g.is_assign_lhs = false
|
|
if is_fixed_array_copy {
|
|
if is_decl {
|
|
g.writeln(';')
|
|
}
|
|
} else if !g.is_arraymap_set && !str_add && !op_overloaded {
|
|
g.write(' $op ')
|
|
} else if str_add || op_overloaded {
|
|
g.write(', ')
|
|
}
|
|
mut cloned := false
|
|
if g.is_autofree && right_sym.kind in [.array, .string] {
|
|
if g.gen_clone_assignment(val, right_sym, false) {
|
|
cloned = true
|
|
}
|
|
}
|
|
unwrap_optional := !var_type.has_flag(.optional) && val_type.has_flag(.optional)
|
|
if unwrap_optional {
|
|
// Unwrap the optional now that the testing code has been prepended.
|
|
// `pos := s.index(...
|
|
// `int pos = *(int)_t10.data;`
|
|
// if g.is_autofree {
|
|
/*
|
|
if is_optional {
|
|
g.write('*($styp*)')
|
|
g.write(tmp_opt + '.data/*FFz*/')
|
|
g.right_is_opt = false
|
|
if g.inside_ternary == 0 && !assign_stmt.is_simple {
|
|
g.writeln(';')
|
|
}
|
|
return
|
|
}
|
|
*/
|
|
}
|
|
g.is_shared = var_type.has_flag(.shared_f)
|
|
if !cloned {
|
|
if is_fixed_array_copy {
|
|
typ_str := g.typ(val_type).trim('*')
|
|
ref_str := if val_type.is_ptr() { '' } else { '&' }
|
|
g.write('memcpy(($typ_str*)')
|
|
g.expr(left)
|
|
g.write(', (byte*)$ref_str')
|
|
g.expr(val)
|
|
g.write(', sizeof($typ_str))')
|
|
} else if is_decl {
|
|
if is_fixed_array_init && !has_val {
|
|
if val is ast.ArrayInit {
|
|
if val.has_default {
|
|
g.write('{')
|
|
g.expr(val.default_expr)
|
|
info := right_sym.info as ast.ArrayFixed
|
|
for _ in 1 .. info.size {
|
|
g.write(', ')
|
|
g.expr(val.default_expr)
|
|
}
|
|
g.write('}')
|
|
} else {
|
|
g.write('{0}')
|
|
}
|
|
} else {
|
|
g.write('{0}')
|
|
}
|
|
} else {
|
|
if is_auto_heap {
|
|
g.write('HEAP($styp, (')
|
|
}
|
|
if val.is_auto_deref_var() {
|
|
g.write('*')
|
|
}
|
|
g.expr(val)
|
|
if is_auto_heap {
|
|
g.write('))')
|
|
}
|
|
}
|
|
} else {
|
|
if assign_stmt.has_cross_var {
|
|
g.gen_cross_tmp_variable(assign_stmt.left, val)
|
|
} else {
|
|
g.expr_with_cast(val, val_type, var_type)
|
|
}
|
|
}
|
|
}
|
|
if str_add || op_overloaded {
|
|
g.write(')')
|
|
}
|
|
if g.is_arraymap_set {
|
|
g.write(' })')
|
|
g.is_arraymap_set = false
|
|
}
|
|
g.is_shared = false
|
|
}
|
|
g.right_is_opt = false
|
|
if g.inside_ternary == 0 && (assign_stmt.left.len > 1 || !assign_stmt.is_simple) {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) gen_cross_tmp_variable(left []ast.Expr, val ast.Expr) {
|
|
val_ := val
|
|
match val {
|
|
ast.Ident {
|
|
mut has_var := false
|
|
for lx in left {
|
|
if lx is ast.Ident {
|
|
if val.name == lx.name {
|
|
g.write('_var_')
|
|
g.write(lx.pos.pos.str())
|
|
has_var = true
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if !has_var {
|
|
g.expr(val_)
|
|
}
|
|
}
|
|
ast.IndexExpr {
|
|
mut has_var := false
|
|
for lx in left {
|
|
if val_.str() == lx.str() {
|
|
g.write('_var_')
|
|
g.write(lx.position().pos.str())
|
|
has_var = true
|
|
break
|
|
}
|
|
}
|
|
if !has_var {
|
|
g.expr(val_)
|
|
}
|
|
}
|
|
ast.InfixExpr {
|
|
g.gen_cross_tmp_variable(left, val.left)
|
|
g.write(val.op.str())
|
|
g.gen_cross_tmp_variable(left, val.right)
|
|
}
|
|
ast.PrefixExpr {
|
|
g.write(val.op.str())
|
|
g.gen_cross_tmp_variable(left, val.right)
|
|
}
|
|
ast.PostfixExpr {
|
|
g.gen_cross_tmp_variable(left, val.expr)
|
|
g.write(val.op.str())
|
|
}
|
|
ast.SelectorExpr {
|
|
mut has_var := false
|
|
for lx in left {
|
|
if val_.str() == lx.str() {
|
|
g.write('_var_')
|
|
g.write(lx.position().pos.str())
|
|
has_var = true
|
|
break
|
|
}
|
|
}
|
|
if !has_var {
|
|
g.expr(val_)
|
|
}
|
|
}
|
|
else {
|
|
g.expr(val_)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) register_ternary_name(name string) {
|
|
level_key := g.inside_ternary.str()
|
|
if level_key !in g.ternary_level_names {
|
|
g.ternary_level_names[level_key] = []string{}
|
|
}
|
|
new_name := g.new_tmp_var()
|
|
g.ternary_names[name] = new_name
|
|
g.ternary_level_names[level_key] << name
|
|
}
|
|
|
|
fn (mut g Gen) get_ternary_name(name string) string {
|
|
if g.inside_ternary == 0 {
|
|
return name
|
|
}
|
|
if name !in g.ternary_names {
|
|
return name
|
|
}
|
|
return g.ternary_names[name]
|
|
}
|
|
|
|
fn (mut g Gen) gen_clone_assignment(val ast.Expr, right_sym ast.TypeSymbol, add_eq bool) bool {
|
|
if val !is ast.Ident && val !is ast.SelectorExpr {
|
|
return false
|
|
}
|
|
if g.is_autofree && right_sym.kind == .array {
|
|
// `arr1 = arr2` => `arr1 = arr2.clone()`
|
|
if add_eq {
|
|
g.write('=')
|
|
}
|
|
g.write(' array_clone_static_to_depth(')
|
|
g.expr(val)
|
|
elem_type := (right_sym.info as ast.Array).elem_type
|
|
array_depth := g.get_array_depth(elem_type)
|
|
g.write(', $array_depth)')
|
|
} else if g.is_autofree && right_sym.kind == .string {
|
|
if add_eq {
|
|
g.write('=')
|
|
}
|
|
// `str1 = str2` => `str1 = str2.clone()`
|
|
g.write(' string_clone_static(')
|
|
g.expr(val)
|
|
g.write(')')
|
|
}
|
|
return true
|
|
}
|
|
|
|
fn (mut g Gen) autofree_scope_vars(pos int, line_nr int, free_parent_scopes bool) {
|
|
g.autofree_scope_vars_stop(pos, line_nr, free_parent_scopes, -1)
|
|
}
|
|
|
|
fn (mut g Gen) autofree_scope_vars_stop(pos int, line_nr int, free_parent_scopes bool, stop_pos int) {
|
|
if g.is_builtin_mod {
|
|
// In `builtin` everything is freed manually.
|
|
return
|
|
}
|
|
if pos == -1 {
|
|
// TODO why can pos be -1?
|
|
return
|
|
}
|
|
// eprintln('> free_scope_vars($pos)')
|
|
scope := g.file.scope.innermost(pos)
|
|
if scope.start_pos == 0 {
|
|
// TODO why can scope.pos be 0? (only outside fns?)
|
|
return
|
|
}
|
|
g.trace_autofree('// autofree_scope_vars(pos=$pos line_nr=$line_nr scope.pos=$scope.start_pos scope.end_pos=$scope.end_pos)')
|
|
g.autofree_scope_vars2(scope, scope.start_pos, scope.end_pos, line_nr, free_parent_scopes,
|
|
stop_pos)
|
|
}
|
|
|
|
[if trace_autofree]
|
|
fn (mut g Gen) trace_autofree(line string) {
|
|
g.writeln(line)
|
|
}
|
|
|
|
// fn (mut g Gen) autofree_scope_vars2(scope &ast.Scope, end_pos int) {
|
|
fn (mut g Gen) autofree_scope_vars2(scope &ast.Scope, start_pos int, end_pos int, line_nr int, free_parent_scopes bool, stop_pos int) {
|
|
if isnil(scope) {
|
|
return
|
|
}
|
|
for _, obj in scope.objects {
|
|
match obj {
|
|
ast.Var {
|
|
g.trace_autofree('// var "$obj.name" var.pos=$obj.pos.pos var.line_nr=$obj.pos.line_nr')
|
|
if obj.name == g.returned_var_name {
|
|
g.trace_autofree('// skipping returned var')
|
|
continue
|
|
}
|
|
if obj.is_or {
|
|
// Skip vars inited with the `or {}`, since they are generated
|
|
// after the or block in C.
|
|
g.trace_autofree('// skipping `or{}` var "$obj.name"')
|
|
continue
|
|
}
|
|
if obj.is_tmp {
|
|
// Skip for loop vars
|
|
g.trace_autofree('// skipping tmp var "$obj.name"')
|
|
continue
|
|
}
|
|
// if var.typ == 0 {
|
|
// // TODO why 0?
|
|
// continue
|
|
// }
|
|
// if v.pos.pos > end_pos {
|
|
if obj.pos.pos > end_pos || (obj.pos.pos < start_pos && obj.pos.line_nr == line_nr) {
|
|
// Do not free vars that were declared after this scope
|
|
continue
|
|
}
|
|
is_optional := obj.typ.has_flag(.optional)
|
|
if is_optional {
|
|
// TODO: free optionals
|
|
continue
|
|
}
|
|
g.autofree_variable(obj)
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
// Free all vars in parent scopes as well:
|
|
// ```
|
|
// s := ...
|
|
// if ... {
|
|
// s.free()
|
|
// return
|
|
// }
|
|
// ```
|
|
// if !isnil(scope.parent) && line_nr > 0 {
|
|
if free_parent_scopes && !isnil(scope.parent)
|
|
&& (stop_pos == -1 || scope.parent.start_pos >= stop_pos) {
|
|
g.trace_autofree('// af parent scope:')
|
|
g.autofree_scope_vars2(scope.parent, start_pos, end_pos, line_nr, true, stop_pos)
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) autofree_variable(v ast.Var) {
|
|
sym := g.table.get_type_symbol(v.typ)
|
|
// if v.name.contains('output2') {
|
|
// eprintln(' > var name: ${v.name:-20s} | is_arg: ${v.is_arg.str():6} | var type: ${int(v.typ):8} | type_name: ${sym.name:-33s}')
|
|
// }
|
|
if sym.kind == .array {
|
|
if sym.has_method('free') {
|
|
free_method_name := g.typ(v.typ) + '_free'
|
|
g.autofree_var_call(free_method_name, v)
|
|
return
|
|
}
|
|
g.autofree_var_call('array_free', v)
|
|
return
|
|
}
|
|
if sym.kind == .string {
|
|
// Don't free simple string literals.
|
|
match v.expr {
|
|
ast.StringLiteral {
|
|
g.trace_autofree('// str literal')
|
|
}
|
|
else {
|
|
// NOTE/TODO: assign_stmt multi returns variables have no expr
|
|
// since the type comes from the called fns return type
|
|
/*
|
|
f := v.name[0]
|
|
if
|
|
//!(f >= `a` && f <= `d`) {
|
|
//f != `c` {
|
|
v.name!='cvar_name' {
|
|
t := typeof(v.expr)
|
|
return '// other ' + t + '\n'
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
g.autofree_var_call('string_free', v)
|
|
return
|
|
}
|
|
if sym.has_method('free') {
|
|
g.autofree_var_call(c_name(sym.name) + '_free', v)
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) autofree_var_call(free_fn_name string, v ast.Var) {
|
|
if v.is_arg {
|
|
// fn args should not be autofreed
|
|
return
|
|
}
|
|
if v.is_used && v.is_autofree_tmp {
|
|
// tmp expr vars do not need to be freed again here
|
|
return
|
|
}
|
|
if g.is_builtin_mod {
|
|
return
|
|
}
|
|
if !g.is_autofree {
|
|
return
|
|
}
|
|
// if v.is_autofree_tmp && !g.doing_autofree_tmp {
|
|
// return
|
|
// }
|
|
if v.name.contains('expr_write_string_1_') {
|
|
// TODO remove this temporary hack
|
|
return
|
|
}
|
|
if v.typ.is_ptr() {
|
|
g.writeln('\t${free_fn_name}(${c_name(v.name)}); // autofreed ptr var')
|
|
} else {
|
|
if v.typ == ast.error_type && !v.is_autofree_tmp {
|
|
return
|
|
}
|
|
g.writeln('\t${free_fn_name}(&${c_name(v.name)}); // autofreed var $g.cur_mod.name $g.is_builtin_mod')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) gen_anon_fn_decl(mut node ast.AnonFn) {
|
|
if !node.has_gen {
|
|
pos := g.out.len
|
|
g.anon_fn = true
|
|
g.stmt(node.decl)
|
|
g.anon_fn = false
|
|
fn_body := g.out.after(pos)
|
|
g.out.go_back(fn_body.len)
|
|
g.anon_fn_definitions << fn_body
|
|
node.has_gen = true
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) map_fn_ptrs(key_typ ast.TypeSymbol) (string, string, string, string) {
|
|
mut hash_fn := ''
|
|
mut key_eq_fn := ''
|
|
mut clone_fn := ''
|
|
mut free_fn := '&map_free_nop'
|
|
match key_typ.kind {
|
|
.byte, .i8, .char {
|
|
hash_fn = '&map_hash_int_1'
|
|
key_eq_fn = '&map_eq_int_1'
|
|
clone_fn = '&map_clone_int_1'
|
|
}
|
|
.i16, .u16 {
|
|
hash_fn = '&map_hash_int_2'
|
|
key_eq_fn = '&map_eq_int_2'
|
|
clone_fn = '&map_clone_int_2'
|
|
}
|
|
.int, .u32, .rune, .f32, .enum_ {
|
|
hash_fn = '&map_hash_int_4'
|
|
key_eq_fn = '&map_eq_int_4'
|
|
clone_fn = '&map_clone_int_4'
|
|
}
|
|
.voidptr {
|
|
ts := if g.pref.m64 {
|
|
unsafe { &g.table.type_symbols[ast.u64_type_idx] }
|
|
} else {
|
|
unsafe { &g.table.type_symbols[ast.u32_type_idx] }
|
|
}
|
|
return g.map_fn_ptrs(ts)
|
|
}
|
|
.u64, .i64, .f64 {
|
|
hash_fn = '&map_hash_int_8'
|
|
key_eq_fn = '&map_eq_int_8'
|
|
clone_fn = '&map_clone_int_8'
|
|
}
|
|
.string {
|
|
hash_fn = '&map_hash_string'
|
|
key_eq_fn = '&map_eq_string'
|
|
clone_fn = '&map_clone_string'
|
|
free_fn = '&map_free_string'
|
|
}
|
|
else {
|
|
verror('map key type not supported')
|
|
}
|
|
}
|
|
return hash_fn, key_eq_fn, clone_fn, free_fn
|
|
}
|
|
|
|
fn (mut g Gen) expr(node ast.Expr) {
|
|
// println('cgen expr() line_nr=$node.pos.line_nr')
|
|
old_discard_or_result := g.discard_or_result
|
|
old_is_void_expr_stmt := g.is_void_expr_stmt
|
|
if g.is_void_expr_stmt {
|
|
g.discard_or_result = true
|
|
g.is_void_expr_stmt = false
|
|
} else {
|
|
g.discard_or_result = false
|
|
}
|
|
// NB: please keep the type names in the match here in alphabetical order:
|
|
match mut node {
|
|
ast.EmptyExpr {
|
|
g.error('g.expr(): unhandled EmptyExpr', token.Position{})
|
|
}
|
|
ast.AnonFn {
|
|
// TODO: dont fiddle with buffers
|
|
g.gen_anon_fn_decl(mut node)
|
|
fsym := g.table.get_type_symbol(node.typ)
|
|
g.write(fsym.name)
|
|
}
|
|
ast.ArrayDecompose {
|
|
g.expr(node.expr)
|
|
}
|
|
ast.ArrayInit {
|
|
g.array_init(node)
|
|
}
|
|
ast.AsCast {
|
|
g.as_cast(node)
|
|
}
|
|
ast.Assoc {
|
|
g.assoc(node)
|
|
}
|
|
ast.BoolLiteral {
|
|
g.write(node.val.str())
|
|
}
|
|
ast.CallExpr {
|
|
// if g.fileis('1.strings') {
|
|
// println('\ncall_expr()()')
|
|
// }
|
|
ret_type := if node.or_block.kind == .absent {
|
|
node.return_type
|
|
} else {
|
|
node.return_type.clear_flag(.optional)
|
|
}
|
|
mut shared_styp := ''
|
|
if g.is_shared && !ret_type.has_flag(.shared_f) {
|
|
ret_sym := g.table.get_type_symbol(ret_type)
|
|
shared_typ := ret_type.set_flag(.shared_f)
|
|
shared_styp = g.typ(shared_typ)
|
|
if ret_sym.kind == .array {
|
|
g.writeln('($shared_styp*)__dup_shared_array(&($shared_styp){.mtx = {0}, .val =')
|
|
} else if ret_sym.kind == .map {
|
|
g.writeln('($shared_styp*)__dup_shared_map(&($shared_styp){.mtx = {0}, .val =')
|
|
} else {
|
|
g.writeln('($shared_styp*)__dup${shared_styp}(&($shared_styp){.mtx = {0}, .val =')
|
|
}
|
|
}
|
|
g.call_expr(node)
|
|
// if g.fileis('1.strings') {
|
|
// println('before:' + node.autofree_pregen)
|
|
// }
|
|
if g.is_autofree && !g.is_builtin_mod && !g.is_js_call && g.strs_to_free0.len == 0
|
|
&& !g.inside_lambda { // && g.inside_ternary ==
|
|
// if len != 0, that means we are handling call expr inside call expr (arg)
|
|
// and it'll get messed up here, since it's handled recursively in autofree_call_pregen()
|
|
// so just skip it
|
|
g.autofree_call_pregen(node)
|
|
if g.strs_to_free0.len > 0 {
|
|
g.insert_before_stmt(g.strs_to_free0.join('\n') + '/* inserted before */')
|
|
}
|
|
g.strs_to_free0 = []
|
|
// println('pos=$node.pos.pos')
|
|
}
|
|
if g.is_shared && !ret_type.has_flag(.shared_f) {
|
|
g.writeln('}, sizeof($shared_styp))')
|
|
}
|
|
// if g.autofree && node.autofree_pregen != '' { // g.strs_to_free0.len != 0 {
|
|
/*
|
|
if g.autofree {
|
|
s := g.autofree_pregen[node.pos.pos.str()]
|
|
if s != '' {
|
|
// g.insert_before_stmt('/*START2*/' + g.strs_to_free0.join('\n') + '/*END*/')
|
|
// g.insert_before_stmt('/*START3*/' + node.autofree_pregen + '/*END*/')
|
|
g.insert_before_stmt('/*START3*/' + s + '/*END*/')
|
|
// for s in g.strs_to_free0 {
|
|
}
|
|
// //g.writeln(s)
|
|
// }
|
|
g.strs_to_free0 = []
|
|
}
|
|
*/
|
|
}
|
|
ast.CastExpr {
|
|
g.cast_expr(node)
|
|
}
|
|
ast.ChanInit {
|
|
elem_typ_str := g.typ(node.elem_type)
|
|
g.write('sync__new_channel_st(')
|
|
if node.has_cap {
|
|
g.expr(node.cap_expr)
|
|
} else {
|
|
g.write('0')
|
|
}
|
|
g.write(', sizeof(')
|
|
g.write(elem_typ_str)
|
|
g.write('))')
|
|
}
|
|
ast.CharLiteral {
|
|
if node.val == r'\`' {
|
|
g.write("'`'")
|
|
} else {
|
|
if utf8_str_len(node.val) < node.val.len {
|
|
g.write("L'$node.val'")
|
|
} else {
|
|
g.write("'$node.val'")
|
|
}
|
|
}
|
|
}
|
|
ast.DumpExpr {
|
|
g.dump_expr(node)
|
|
}
|
|
ast.AtExpr {
|
|
g.comp_at(node)
|
|
}
|
|
ast.ComptimeCall {
|
|
g.comptime_call(node)
|
|
}
|
|
ast.ComptimeSelector {
|
|
g.comptime_selector(node)
|
|
}
|
|
ast.Comment {}
|
|
ast.ConcatExpr {
|
|
g.concat_expr(node)
|
|
}
|
|
ast.CTempVar {
|
|
// g.write('/*ctmp .orig: $node.orig.str() , ._typ: $node.typ, .is_ptr: $node.is_ptr */ ')
|
|
g.write(node.name)
|
|
}
|
|
ast.EnumVal {
|
|
// g.write('${it.mod}${it.enum_name}_$it.val')
|
|
// g.enum_expr(node)
|
|
styp := g.typ(node.typ)
|
|
g.write('${styp}_$node.val')
|
|
}
|
|
ast.FloatLiteral {
|
|
g.write(node.val)
|
|
}
|
|
ast.GoExpr {
|
|
g.go_expr(node)
|
|
}
|
|
ast.Ident {
|
|
g.ident(node)
|
|
}
|
|
ast.IfExpr {
|
|
g.if_expr(node)
|
|
}
|
|
ast.IfGuardExpr {
|
|
g.write('/* guard */')
|
|
}
|
|
ast.IndexExpr {
|
|
g.index_expr(node)
|
|
}
|
|
ast.InfixExpr {
|
|
if node.op in [.left_shift, .plus_assign, .minus_assign] {
|
|
g.inside_map_infix = true
|
|
g.infix_expr(node)
|
|
g.inside_map_infix = false
|
|
} else {
|
|
g.infix_expr(node)
|
|
}
|
|
}
|
|
ast.IntegerLiteral {
|
|
if node.val.starts_with('0o') {
|
|
g.write('0')
|
|
g.write(node.val[2..])
|
|
} else if node.val.starts_with('-0o') {
|
|
g.write('-0')
|
|
g.write(node.val[3..])
|
|
} else {
|
|
g.write(node.val) // .int().str())
|
|
}
|
|
}
|
|
ast.LockExpr {
|
|
g.lock_expr(node)
|
|
}
|
|
ast.MatchExpr {
|
|
g.match_expr(node)
|
|
}
|
|
ast.MapInit {
|
|
g.map_init(node)
|
|
}
|
|
ast.NodeError {}
|
|
ast.None {
|
|
g.write('_const_none__')
|
|
}
|
|
ast.OrExpr {
|
|
// this should never appear here
|
|
}
|
|
ast.ParExpr {
|
|
g.write('(')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
}
|
|
ast.PostfixExpr {
|
|
if node.auto_locked != '' {
|
|
g.writeln('sync__RwMutex_lock(&$node.auto_locked->mtx);')
|
|
}
|
|
g.inside_map_postfix = true
|
|
if node.expr.is_auto_deref_var() {
|
|
g.write('(*')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
} else {
|
|
g.expr(node.expr)
|
|
}
|
|
g.inside_map_postfix = false
|
|
g.write(node.op.str())
|
|
if node.auto_locked != '' {
|
|
g.writeln(';')
|
|
g.write('sync__RwMutex_unlock(&$node.auto_locked->mtx)')
|
|
}
|
|
}
|
|
ast.PrefixExpr {
|
|
gen_or := node.op == .arrow && (node.or_block.kind != .absent || node.is_option)
|
|
if node.op == .amp {
|
|
g.is_amp = true
|
|
}
|
|
if node.op == .arrow {
|
|
styp := g.typ(node.right_type)
|
|
right_sym := g.table.get_type_symbol(node.right_type)
|
|
mut right_inf := right_sym.info as ast.Chan
|
|
elem_type := right_inf.elem_type
|
|
is_gen_or_and_assign_rhs := gen_or && !g.discard_or_result
|
|
cur_line := if is_gen_or_and_assign_rhs {
|
|
line := g.go_before_stmt(0)
|
|
g.out.write_string(util.tabs(g.indent))
|
|
line
|
|
} else {
|
|
''
|
|
}
|
|
tmp_opt := if gen_or { g.new_tmp_var() } else { '' }
|
|
if gen_or {
|
|
opt_elem_type := g.typ(elem_type.set_flag(.optional))
|
|
g.register_chan_pop_optional_call(opt_elem_type, styp)
|
|
g.write('$opt_elem_type $tmp_opt = __Option_${styp}_popval(')
|
|
} else {
|
|
g.write('__${styp}_popval(')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
if gen_or {
|
|
if !node.is_option {
|
|
g.or_block(tmp_opt, node.or_block, elem_type)
|
|
}
|
|
if is_gen_or_and_assign_rhs {
|
|
elem_styp := g.typ(elem_type)
|
|
g.write(';\n$cur_line*($elem_styp*)${tmp_opt}.data')
|
|
}
|
|
}
|
|
} else {
|
|
// g.write('/*pref*/')
|
|
if !(g.is_amp && node.right.is_auto_deref_var()) {
|
|
g.write(node.op.str())
|
|
}
|
|
// g.write('(')
|
|
g.expr(node.right)
|
|
}
|
|
g.is_amp = false
|
|
}
|
|
ast.RangeExpr {
|
|
// Only used in IndexExpr
|
|
}
|
|
ast.SelectExpr {
|
|
g.select_expr(node)
|
|
}
|
|
ast.SizeOf {
|
|
node_typ := g.unwrap_generic(node.typ)
|
|
sym := g.table.get_type_symbol(node_typ)
|
|
if sym.language == .v && sym.kind in [.placeholder, .any] {
|
|
g.error('unknown type `$sym.name`', node.pos)
|
|
}
|
|
styp := g.typ(node_typ)
|
|
g.write('/*SizeOf*/ sizeof(${util.no_dots(styp)})')
|
|
}
|
|
ast.IsRefType {
|
|
node_typ := g.unwrap_generic(node.typ)
|
|
sym := g.table.get_type_symbol(node_typ)
|
|
if sym.language == .v && sym.kind in [.placeholder, .any] {
|
|
g.error('unknown type `$sym.name`', node.pos)
|
|
}
|
|
is_ref_type := g.contains_ptr(node_typ)
|
|
g.write('/*IsRefType*/ $is_ref_type')
|
|
}
|
|
ast.OffsetOf {
|
|
styp := g.typ(node.struct_type)
|
|
g.write('/*OffsetOf*/ (u32)(__offsetof(${util.no_dots(styp)}, $node.field))')
|
|
}
|
|
ast.SqlExpr {
|
|
g.sql_select_expr(node, false, '')
|
|
}
|
|
ast.StringLiteral {
|
|
g.string_literal(node)
|
|
}
|
|
ast.StringInterLiteral {
|
|
g.string_inter_literal(node)
|
|
}
|
|
ast.StructInit {
|
|
if node.unresolved {
|
|
g.expr(ast.resolve_init(node, g.unwrap_generic(node.typ), g.table))
|
|
} else {
|
|
// `user := User{name: 'Bob'}`
|
|
g.struct_init(node)
|
|
}
|
|
}
|
|
ast.SelectorExpr {
|
|
g.selector_expr(node)
|
|
}
|
|
ast.TypeNode {
|
|
// match sum Type
|
|
// g.write('/* Type */')
|
|
// type_idx := node.typ.idx()
|
|
sym := g.table.get_type_symbol(node.typ)
|
|
sidx := g.type_sidx(node.typ)
|
|
// g.write('$type_idx /* $sym.name */')
|
|
g.write('$sidx /* $sym.name */')
|
|
}
|
|
ast.TypeOf {
|
|
g.typeof_expr(node)
|
|
}
|
|
ast.Likely {
|
|
if node.is_likely {
|
|
g.write('_likely_')
|
|
} else {
|
|
g.write('_unlikely_')
|
|
}
|
|
g.write('(')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
}
|
|
ast.UnsafeExpr {
|
|
g.expr(node.expr)
|
|
}
|
|
}
|
|
g.discard_or_result = old_discard_or_result
|
|
g.is_void_expr_stmt = old_is_void_expr_stmt
|
|
}
|
|
|
|
// T.name, typeof(expr).name
|
|
fn (mut g Gen) type_name(typ ast.Type) {
|
|
sym := g.table.get_type_symbol(typ)
|
|
mut s := ''
|
|
if sym.kind == .function {
|
|
if typ.is_ptr() {
|
|
s = '&' + g.fn_decl_str(sym.info as ast.FnType)
|
|
} else {
|
|
s = g.fn_decl_str(sym.info as ast.FnType)
|
|
}
|
|
} else {
|
|
s = g.table.type_to_str(g.unwrap_generic(typ))
|
|
}
|
|
g.write('_SLIT("${util.strip_main_name(s)}")')
|
|
}
|
|
|
|
fn (mut g Gen) typeof_expr(node ast.TypeOf) {
|
|
sym := g.table.get_type_symbol(node.expr_type)
|
|
if sym.kind == .sum_type {
|
|
// When encountering a .sum_type, typeof() should be done at runtime,
|
|
// because the subtype of the expression may change:
|
|
g.write('tos3( /* $sym.name */ v_typeof_sumtype_${sym.cname}( (')
|
|
g.expr(node.expr)
|
|
g.write(')._typ ))')
|
|
} else if sym.kind == .array_fixed {
|
|
fixed_info := sym.info as ast.ArrayFixed
|
|
typ_name := g.table.get_type_name(fixed_info.elem_type)
|
|
g.write('_SLIT("[$fixed_info.size]${util.strip_main_name(typ_name)}")')
|
|
} else if sym.kind == .function {
|
|
info := sym.info as ast.FnType
|
|
g.write('_SLIT("${g.fn_decl_str(info)}")')
|
|
} else if node.expr_type.has_flag(.variadic) {
|
|
varg_elem_type_sym := g.table.get_type_symbol(g.table.value_type(node.expr_type))
|
|
g.write('_SLIT("...${util.strip_main_name(varg_elem_type_sym.name)}")')
|
|
} else {
|
|
x := g.table.type_to_str(node.expr_type)
|
|
y := util.strip_main_name(x)
|
|
g.write('_SLIT("$y")')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) selector_expr(node ast.SelectorExpr) {
|
|
prevent_sum_type_unwrapping_once := g.prevent_sum_type_unwrapping_once
|
|
g.prevent_sum_type_unwrapping_once = false
|
|
if node.name_type > 0 {
|
|
g.type_name(node.name_type)
|
|
return
|
|
}
|
|
if node.expr_type == 0 {
|
|
g.checker_bug('unexpected SelectorExpr.expr_type = 0', node.pos)
|
|
}
|
|
sym := g.table.get_type_symbol(g.unwrap_generic(node.expr_type))
|
|
// if node expr is a root ident and an optional
|
|
mut is_optional := node.expr is ast.Ident && node.expr_type.has_flag(.optional)
|
|
if is_optional {
|
|
opt_base_typ := g.base_type(node.expr_type)
|
|
g.writeln('(*($opt_base_typ*)')
|
|
}
|
|
if sym.kind in [.interface_, .sum_type] {
|
|
g.write('(*(')
|
|
}
|
|
if sym.kind == .array_fixed {
|
|
if node.field_name != 'len' {
|
|
g.error('field_name should be `len`', node.pos)
|
|
}
|
|
info := sym.info as ast.ArrayFixed
|
|
g.write('$info.size')
|
|
return
|
|
}
|
|
if sym.kind == .chan && (node.field_name == 'len' || node.field_name == 'closed') {
|
|
g.write('sync__Channel_${node.field_name}(')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
return
|
|
}
|
|
mut sum_type_deref_field := ''
|
|
mut sum_type_dot := '.'
|
|
if f := g.table.find_field(sym, node.field_name) {
|
|
field_sym := g.table.get_type_symbol(f.typ)
|
|
if field_sym.kind in [.sum_type, .interface_] {
|
|
if !prevent_sum_type_unwrapping_once {
|
|
// check first if field is sum type because scope searching is expensive
|
|
scope := g.file.scope.innermost(node.pos.pos)
|
|
if field := scope.find_struct_field(node.expr_type, node.field_name) {
|
|
if field.orig_type.is_ptr() {
|
|
sum_type_dot = '->'
|
|
}
|
|
for i, typ in field.smartcasts {
|
|
g.write('(')
|
|
if field_sym.kind == .sum_type {
|
|
g.write('*')
|
|
}
|
|
cast_sym := g.table.get_type_symbol(typ)
|
|
if i != 0 {
|
|
dot := if field.typ.is_ptr() { '->' } else { '.' }
|
|
sum_type_deref_field += ')$dot'
|
|
}
|
|
if mut cast_sym.info is ast.Aggregate {
|
|
agg_sym := g.table.get_type_symbol(cast_sym.info.types[g.aggregate_type_idx])
|
|
sum_type_deref_field += '_$agg_sym.cname'
|
|
} else {
|
|
sum_type_deref_field += '_$cast_sym.cname'
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
g.expr(node.expr)
|
|
if is_optional {
|
|
g.write('.data)')
|
|
}
|
|
// struct embedding
|
|
if sym.info is ast.Struct {
|
|
if node.from_embed_type != 0 {
|
|
embed_sym := g.table.get_type_symbol(node.from_embed_type)
|
|
embed_name := embed_sym.embed_name()
|
|
if node.expr_type.is_ptr() {
|
|
g.write('->')
|
|
} else {
|
|
g.write('.')
|
|
}
|
|
g.write(embed_name)
|
|
}
|
|
}
|
|
if (node.expr_type.is_ptr() || sym.kind == .chan) && node.from_embed_type == 0 {
|
|
g.write('->')
|
|
} else {
|
|
// g.write('. /*typ= $it.expr_type */') // ${g.typ(it.expr_type)} /')
|
|
g.write('.')
|
|
}
|
|
if node.expr_type.has_flag(.shared_f) {
|
|
g.write('val.')
|
|
}
|
|
if node.expr_type == 0 {
|
|
verror('cgen: SelectorExpr | expr_type: 0 | it.expr: `$node.expr` | field: `$node.field_name` | file: $g.file.path | line: $node.pos.line_nr')
|
|
}
|
|
g.write(c_name(node.field_name))
|
|
if sum_type_deref_field != '' {
|
|
g.write('$sum_type_dot$sum_type_deref_field)')
|
|
}
|
|
if sym.kind in [.interface_, .sum_type] {
|
|
g.write('))')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) enum_expr(node ast.Expr) {
|
|
match node {
|
|
ast.EnumVal {
|
|
g.write(node.val)
|
|
}
|
|
else {
|
|
g.expr(node)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) infix_gen_equality(node ast.InfixExpr, left_type ast.Type, left_sym ast.TypeSymbol, right_sym ast.TypeSymbol) {
|
|
if left_sym.kind != right_sym.kind {
|
|
return
|
|
}
|
|
match left_sym.kind {
|
|
.array {
|
|
ptr_typ := g.gen_array_equality_fn(left_type.clear_flag(.shared_f))
|
|
if node.op == .ne {
|
|
g.write('!')
|
|
}
|
|
g.write('${ptr_typ}_arr_eq(')
|
|
if node.left_type.is_ptr() && !node.left_type.has_flag(.shared_f) {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
if node.left_type.has_flag(.shared_f) {
|
|
if node.left_type.is_ptr() {
|
|
g.write('->val')
|
|
} else {
|
|
g.write('.val')
|
|
}
|
|
}
|
|
g.write(', ')
|
|
if node.right_type.is_ptr() && !node.right_type.has_flag(.shared_f) {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
if node.right_type.has_flag(.shared_f) {
|
|
if node.right_type.is_ptr() {
|
|
g.write('->val')
|
|
} else {
|
|
g.write('.val')
|
|
}
|
|
}
|
|
g.write(')')
|
|
}
|
|
.array_fixed {
|
|
ptr_typ := g.gen_fixed_array_equality_fn(left_type)
|
|
if node.op == .ne {
|
|
g.write('!')
|
|
}
|
|
g.write('${ptr_typ}_arr_eq(')
|
|
if node.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
if node.left is ast.ArrayInit {
|
|
s := g.typ(left_type)
|
|
g.write('($s)')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
if node.right is ast.ArrayInit {
|
|
s := g.typ(left_type)
|
|
g.write('($s)')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
.alias {
|
|
ptr_typ := g.gen_alias_equality_fn(left_type)
|
|
if node.op == .eq {
|
|
g.write('${ptr_typ}_alias_eq(')
|
|
} else if node.op == .ne {
|
|
g.write('!${ptr_typ}_alias_eq(')
|
|
}
|
|
if node.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
if node.right_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
.map {
|
|
ptr_typ := g.gen_map_equality_fn(left_type)
|
|
if node.op == .eq {
|
|
g.write('${ptr_typ}_map_eq(')
|
|
} else if node.op == .ne {
|
|
g.write('!${ptr_typ}_map_eq(')
|
|
}
|
|
if node.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
if node.right_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
.string, .struct_ {
|
|
// Auto generate both `==` and `!=`
|
|
ptr_typ := g.gen_struct_equality_fn(left_type)
|
|
if node.op == .eq {
|
|
g.write('${ptr_typ}_struct_eq(')
|
|
} else if node.op == .ne {
|
|
g.write('!${ptr_typ}_struct_eq(')
|
|
}
|
|
if node.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
if node.right_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
.sum_type {
|
|
ptr_typ := g.gen_sumtype_equality_fn(left_type)
|
|
if node.op == .eq {
|
|
g.write('${ptr_typ}_sumtype_eq(')
|
|
} else if node.op == .ne {
|
|
g.write('!${ptr_typ}_sumtype_eq(')
|
|
}
|
|
if node.left_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
if node.right_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) infix_in_or_not_in(node ast.InfixExpr, left_sym ast.TypeSymbol, right_sym ast.TypeSymbol) {
|
|
if node.op == .not_in {
|
|
g.write('!')
|
|
}
|
|
if right_sym.kind == .array {
|
|
if mut node.right is ast.ArrayInit {
|
|
if node.right.exprs.len > 0 {
|
|
// `a in [1,2,3]` optimization => `a == 1 || a == 2 || a == 3`
|
|
// avoids an allocation
|
|
// g.write('/*in opt*/')
|
|
g.write('(')
|
|
g.in_optimization(node.left, node.right)
|
|
g.write(')')
|
|
return
|
|
}
|
|
}
|
|
fn_name := g.gen_array_contains_method(node.right_type)
|
|
g.write('(${fn_name}(')
|
|
if node.right_type.is_ptr() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.right)
|
|
g.write(', ')
|
|
g.expr(node.left)
|
|
g.write('))')
|
|
return
|
|
} else if right_sym.kind == .map {
|
|
g.write('_IN_MAP(')
|
|
if !node.left_type.is_ptr() {
|
|
styp := g.typ(node.left_type)
|
|
g.write('ADDR($styp, ')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
} else {
|
|
g.expr(node.left)
|
|
}
|
|
g.write(', ')
|
|
if !node.right_type.is_ptr() {
|
|
g.write('ADDR(map, ')
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
} else {
|
|
g.expr(node.right)
|
|
}
|
|
g.write(')')
|
|
} else if right_sym.kind == .string {
|
|
g.write('string_contains(')
|
|
g.expr(node.right)
|
|
g.write(', ')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) infix_expr(node ast.InfixExpr) {
|
|
// TODO lot of clean required here
|
|
if node.auto_locked != '' {
|
|
g.writeln('sync__RwMutex_lock(&$node.auto_locked->mtx);')
|
|
}
|
|
if node.op in [.key_is, .not_is] {
|
|
g.is_expr(node)
|
|
return
|
|
}
|
|
left_type := g.unwrap_generic(node.left_type)
|
|
// println('>>$node')
|
|
left_sym := g.table.get_type_symbol(left_type)
|
|
left_final_sym := g.table.get_final_type_symbol(left_type)
|
|
// TODO cleanup: linked to left/right_final_sym, unaliasing done twice
|
|
unaliased_left := if left_sym.kind == .alias {
|
|
(left_sym.info as ast.Alias).parent_type
|
|
} else {
|
|
left_type
|
|
}
|
|
op_is_eq_or_ne := node.op in [.eq, .ne]
|
|
right_sym := g.table.get_type_symbol(node.right_type)
|
|
right_final_sym := g.table.get_final_type_symbol(node.right_type)
|
|
if node.op in [.key_in, .not_in] {
|
|
// TODO cleanup: handle the same as is / !is
|
|
g.infix_in_or_not_in(node, left_final_sym, right_final_sym)
|
|
return
|
|
}
|
|
unaliased_right := if right_sym.info is ast.Alias {
|
|
right_sym.info.parent_type
|
|
} else {
|
|
node.right_type
|
|
}
|
|
if unaliased_left == ast.string_type_idx && op_is_eq_or_ne && node.right is ast.StringLiteral
|
|
&& (node.right as ast.StringLiteral).val == '' {
|
|
// `str == ''` -> `str.len == 0` optimization
|
|
g.write('(')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
arrow := if left_type.is_ptr() { '->' } else { '.' }
|
|
g.write('${arrow}len $node.op 0')
|
|
} else if op_is_eq_or_ne && left_sym.kind == right_sym.kind
|
|
&& left_sym.kind in [.array, .array_fixed, .alias, .map, .struct_, .sum_type] {
|
|
g.infix_gen_equality(node, left_type, left_sym, right_sym)
|
|
} else if op_is_eq_or_ne && left_sym.kind == .alias && unaliased_right == ast.string_type {
|
|
// TODO cleanup: almost copy of above
|
|
g.infix_gen_equality(node, unaliased_left, left_final_sym, right_sym)
|
|
} else if node.op == .left_shift && left_final_sym.kind == .array {
|
|
// arr << val
|
|
tmp := g.new_tmp_var()
|
|
info := left_final_sym.info as ast.Array
|
|
noscan := g.check_noscan(info.elem_type)
|
|
if right_final_sym.kind == .array && info.elem_type != g.unwrap_generic(node.right_type) {
|
|
// push an array => PUSH_MANY, but not if pushing an array to 2d array (`[][]int << []int`)
|
|
g.write('_PUSH_MANY${noscan}(')
|
|
mut expected_push_many_atype := left_type
|
|
if !expected_push_many_atype.is_ptr() {
|
|
// fn f(mut a []int) { a << [1,2,3] } -> type of `a` is `array_int*` -> no need for &
|
|
g.write('&')
|
|
} else {
|
|
expected_push_many_atype = expected_push_many_atype.deref()
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', (')
|
|
g.expr_with_cast(node.right, node.right_type, left_type)
|
|
styp := g.typ(expected_push_many_atype)
|
|
g.write('), $tmp, $styp)')
|
|
} else {
|
|
// push a single element
|
|
elem_type_str := g.typ(info.elem_type)
|
|
elem_sym := g.table.get_type_symbol(info.elem_type)
|
|
g.write('array_push${noscan}((array*)')
|
|
if !left_type.is_ptr() {
|
|
g.write('&')
|
|
}
|
|
g.expr(node.left)
|
|
if elem_sym.kind == .function {
|
|
g.write(', _MOV((voidptr[]){ ')
|
|
} else {
|
|
g.write(', _MOV(($elem_type_str[]){ ')
|
|
}
|
|
// if g.autofree
|
|
needs_clone := info.elem_type == ast.string_type && !g.is_builtin_mod
|
|
if needs_clone {
|
|
g.write('string_clone(')
|
|
}
|
|
g.expr_with_cast(node.right, node.right_type, info.elem_type)
|
|
if needs_clone {
|
|
g.write(')')
|
|
}
|
|
g.write(' }))')
|
|
}
|
|
} else if node.op == .arrow {
|
|
// chan <- val
|
|
gen_or := node.or_block.kind != .absent
|
|
styp := left_sym.cname
|
|
mut left_inf := left_sym.info as ast.Chan
|
|
elem_type := left_inf.elem_type
|
|
tmp_opt := if gen_or { g.new_tmp_var() } else { '' }
|
|
if gen_or {
|
|
elem_styp := g.typ(elem_type)
|
|
g.register_chan_push_optional_call(elem_styp, styp)
|
|
g.write('Option_void $tmp_opt = __Option_${styp}_pushval(')
|
|
} else {
|
|
g.write('__${styp}_pushval(')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(', ')
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
if gen_or {
|
|
g.or_block(tmp_opt, node.or_block, ast.void_type)
|
|
}
|
|
} else if unaliased_left.idx() in [ast.u32_type_idx, ast.u64_type_idx]
|
|
&& unaliased_right.is_signed() && node.op in [.eq, .ne, .gt, .lt, .ge, .le] {
|
|
bitsize := if unaliased_left.idx() == ast.u32_type_idx
|
|
&& unaliased_right.idx() != ast.i64_type_idx {
|
|
32
|
|
} else {
|
|
64
|
|
}
|
|
g.write('_us${bitsize}_${c.cmp_str[int(node.op) - int(token.Kind.eq)]}(')
|
|
g.expr(node.left)
|
|
g.write(',')
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
} else if unaliased_right.idx() in [ast.u32_type_idx, ast.u64_type_idx]
|
|
&& unaliased_left.is_signed() && node.op in [.eq, .ne, .gt, .lt, .ge, .le] {
|
|
bitsize := if unaliased_right.idx() == ast.u32_type_idx
|
|
&& unaliased_left.idx() != ast.i64_type_idx {
|
|
32
|
|
} else {
|
|
64
|
|
}
|
|
g.write('_us${bitsize}_${c.cmp_rev[int(node.op) - int(token.Kind.eq)]}(')
|
|
g.expr(node.right)
|
|
g.write(',')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
} else {
|
|
// this likely covers more than V struct, but no idea what...
|
|
is_v_struct := ((left_sym.name[0].is_capital() || left_sym.name.contains('.'))
|
|
&& left_sym.kind !in [.enum_, .function, .interface_, .sum_type]
|
|
&& left_sym.language != .c) || left_sym.kind == .string
|
|
|| unaliased_left == ast.ustring_type
|
|
is_alias := left_sym.kind == .alias
|
|
is_c_alias := is_alias && (left_sym.info as ast.Alias).language == .c
|
|
// Check if aliased type is a struct
|
|
is_struct_alias := is_alias
|
|
&& g.typ((left_sym.info as ast.Alias).parent_type).split('__').last()[0].is_capital()
|
|
// Do not generate operator overloading with these `right_sym.kind`.
|
|
not_exception := right_sym.kind !in [.voidptr, .int_literal, .int]
|
|
if node.op in [.plus, .minus, .mul, .div, .mod, .lt, .eq]
|
|
&& ((is_v_struct && !is_alias && not_exception) || is_c_alias
|
|
|| is_struct_alias) {
|
|
// Overloaded operators
|
|
the_left_type := if !is_struct_alias
|
|
|| g.table.get_type_symbol((left_sym.info as ast.Alias).parent_type).kind in [.array, .array_fixed, .map] {
|
|
left_type
|
|
} else {
|
|
(left_sym.info as ast.Alias).parent_type
|
|
}
|
|
nr_muls := '*'.repeat(the_left_type.nr_muls())
|
|
g.write(g.typ(the_left_type.set_nr_muls(0)))
|
|
g.write('_')
|
|
g.write(util.replace_op(node.op.str()))
|
|
g.write('($nr_muls')
|
|
g.expr(node.left)
|
|
g.write(', $nr_muls')
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
} else if node.op in [.ne, .gt, .ge, .le] && ((is_v_struct && !is_alias && not_exception)
|
|
|| is_c_alias || is_struct_alias) {
|
|
the_left_type := if !is_struct_alias {
|
|
left_type
|
|
} else {
|
|
(left_sym.info as ast.Alias).parent_type
|
|
}
|
|
nr_muls := '*'.repeat(the_left_type.nr_muls())
|
|
typ := g.typ(the_left_type.set_nr_muls(0))
|
|
if node.op == .gt {
|
|
g.write('$typ')
|
|
} else {
|
|
g.write('!$typ')
|
|
}
|
|
g.write('_')
|
|
if node.op == .ne {
|
|
g.write('_eq')
|
|
} else if node.op in [.ge, .le, .gt] {
|
|
g.write('_lt')
|
|
}
|
|
if node.op in [.le, .gt] {
|
|
g.write('($nr_muls')
|
|
g.expr(node.right)
|
|
g.write(', $nr_muls')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
} else {
|
|
g.write('($nr_muls')
|
|
g.expr(node.left)
|
|
g.write(', $nr_muls')
|
|
g.expr(node.right)
|
|
g.write(')')
|
|
}
|
|
} else {
|
|
need_par := node.op in [.amp, .pipe, .xor] // `x & y == 0` => `(x & y) == 0` in C
|
|
if need_par {
|
|
g.write('(')
|
|
}
|
|
if node.left_type.is_ptr() && node.left.is_auto_deref_var() {
|
|
g.write('*')
|
|
}
|
|
g.expr(node.left)
|
|
g.write(' $node.op.str() ')
|
|
g.expr_with_cast(node.right, node.right_type, node.left_type)
|
|
if need_par {
|
|
g.write(')')
|
|
}
|
|
}
|
|
}
|
|
if node.auto_locked != '' {
|
|
g.writeln(';')
|
|
g.write('sync__RwMutex_unlock(&$node.auto_locked->mtx)')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) lock_expr(node ast.LockExpr) {
|
|
g.cur_lock = unsafe { node } // is ok because it is discarded at end of fn
|
|
defer {
|
|
g.cur_lock = ast.LockExpr{
|
|
scope: 0
|
|
}
|
|
}
|
|
tmp_result := if node.is_expr { g.new_tmp_var() } else { '' }
|
|
mut cur_line := ''
|
|
if node.is_expr {
|
|
styp := g.typ(node.typ)
|
|
cur_line = g.go_before_stmt(0)
|
|
g.writeln('$styp $tmp_result;')
|
|
}
|
|
mut mtxs := ''
|
|
if node.lockeds.len == 0 {
|
|
// this should not happen
|
|
} else if node.lockeds.len == 1 {
|
|
lock_prefix := if node.is_rlock[0] { 'r' } else { '' }
|
|
g.write('sync__RwMutex_${lock_prefix}lock(&')
|
|
g.expr(node.lockeds[0])
|
|
g.writeln('->mtx);')
|
|
} else {
|
|
mtxs = g.new_tmp_var()
|
|
g.writeln('uintptr_t _arr_$mtxs[$node.lockeds.len];')
|
|
g.writeln('bool _isrlck_$mtxs[$node.lockeds.len];')
|
|
mut j := 0
|
|
for i, is_rlock in node.is_rlock {
|
|
if !is_rlock {
|
|
g.write('_arr_$mtxs[$j] = (uintptr_t)&')
|
|
g.expr(node.lockeds[i])
|
|
g.writeln('->mtx;')
|
|
g.writeln('_isrlck_$mtxs[$j] = false;')
|
|
j++
|
|
}
|
|
}
|
|
for i, is_rlock in node.is_rlock {
|
|
if is_rlock {
|
|
g.write('_arr_$mtxs[$j] = (uintptr_t)&')
|
|
g.expr(node.lockeds[i])
|
|
g.writeln('->mtx;')
|
|
g.writeln('_isrlck_$mtxs[$j] = true;')
|
|
j++
|
|
}
|
|
}
|
|
if node.lockeds.len == 2 {
|
|
g.writeln('if (_arr_$mtxs[0] > _arr_$mtxs[1]) {')
|
|
g.writeln('\tuintptr_t _ptr_$mtxs = _arr_$mtxs[0];')
|
|
g.writeln('\t_arr_$mtxs[0] = _arr_$mtxs[1];')
|
|
g.writeln('\t_arr_$mtxs[1] = _ptr_$mtxs;')
|
|
g.writeln('\tbool _bool_$mtxs = _isrlck_$mtxs[0];')
|
|
g.writeln('\t_isrlck_$mtxs[0] = _isrlck_$mtxs[1];')
|
|
g.writeln('\t_isrlck_$mtxs[1] = _bool_$mtxs;')
|
|
g.writeln('}')
|
|
} else {
|
|
g.writeln('__sort_ptr(_arr_$mtxs, _isrlck_$mtxs, $node.lockeds.len);')
|
|
}
|
|
g.writeln('for (int $mtxs=0; $mtxs<$node.lockeds.len; $mtxs++) {')
|
|
g.writeln('\tif ($mtxs && _arr_$mtxs[$mtxs] == _arr_$mtxs[$mtxs-1]) continue;')
|
|
g.writeln('\tif (_isrlck_$mtxs[$mtxs])')
|
|
g.writeln('\t\tsync__RwMutex_rlock((sync__RwMutex*)_arr_$mtxs[$mtxs]);')
|
|
g.writeln('\telse')
|
|
g.writeln('\t\tsync__RwMutex_lock((sync__RwMutex*)_arr_$mtxs[$mtxs]);')
|
|
g.writeln('}')
|
|
}
|
|
g.mtxs = mtxs
|
|
defer {
|
|
g.mtxs = ''
|
|
}
|
|
g.writeln('/*lock*/ {')
|
|
g.stmts_with_tmp_var(node.stmts, tmp_result)
|
|
if node.is_expr {
|
|
g.writeln(';')
|
|
}
|
|
g.writeln('}')
|
|
g.unlock_locks()
|
|
if node.is_expr {
|
|
g.writeln('')
|
|
g.write(cur_line)
|
|
g.write('$tmp_result')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) unlock_locks() {
|
|
if g.cur_lock.lockeds.len == 0 {
|
|
} else if g.cur_lock.lockeds.len == 1 {
|
|
lock_prefix := if g.cur_lock.is_rlock[0] { 'r' } else { '' }
|
|
g.write('sync__RwMutex_${lock_prefix}unlock(&')
|
|
g.expr(g.cur_lock.lockeds[0])
|
|
g.write('->mtx);')
|
|
} else {
|
|
g.writeln('for (int $g.mtxs=${g.cur_lock.lockeds.len - 1}; $g.mtxs>=0; $g.mtxs--) {')
|
|
g.writeln('\tif ($g.mtxs && _arr_$g.mtxs[$g.mtxs] == _arr_$g.mtxs[$g.mtxs-1]) continue;')
|
|
g.writeln('\tif (_isrlck_$g.mtxs[$g.mtxs])')
|
|
g.writeln('\t\tsync__RwMutex_runlock((sync__RwMutex*)_arr_$g.mtxs[$g.mtxs]);')
|
|
g.writeln('\telse')
|
|
g.writeln('\t\tsync__RwMutex_unlock((sync__RwMutex*)_arr_$g.mtxs[$g.mtxs]);')
|
|
g.write('}')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) need_tmp_var_in_match(node ast.MatchExpr) bool {
|
|
if node.is_expr && node.return_type != ast.void_type && node.return_type != 0 {
|
|
sym := g.table.get_type_symbol(node.return_type)
|
|
if sym.kind == .multi_return {
|
|
return false
|
|
}
|
|
for branch in node.branches {
|
|
if branch.stmts.len > 1 {
|
|
return true
|
|
}
|
|
if branch.stmts.len == 1 {
|
|
if branch.stmts[0] is ast.ExprStmt {
|
|
stmt := branch.stmts[0] as ast.ExprStmt
|
|
if stmt.expr is ast.CallExpr || stmt.expr is ast.IfExpr
|
|
|| stmt.expr is ast.MatchExpr || (stmt.expr is ast.IndexExpr
|
|
&& (stmt.expr as ast.IndexExpr).or_expr.kind != .absent) {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
fn (mut g Gen) match_expr(node ast.MatchExpr) {
|
|
// println('match expr typ=$it.expr_type')
|
|
// TODO
|
|
if node.cond_type == 0 {
|
|
g.writeln('// match 0')
|
|
return
|
|
}
|
|
need_tmp_var := g.need_tmp_var_in_match(node)
|
|
is_expr := (node.is_expr && node.return_type != ast.void_type) || g.inside_ternary > 0
|
|
mut cond_var := ''
|
|
mut tmp_var := ''
|
|
mut cur_line := ''
|
|
if is_expr && !need_tmp_var {
|
|
g.inside_ternary++
|
|
}
|
|
if node.cond is ast.Ident || node.cond is ast.SelectorExpr || node.cond is ast.IntegerLiteral
|
|
|| node.cond is ast.StringLiteral || node.cond is ast.FloatLiteral {
|
|
cond_var = g.expr_string(node.cond)
|
|
} else {
|
|
line := if is_expr {
|
|
g.empty_line = true
|
|
g.go_before_stmt(0)
|
|
} else {
|
|
''
|
|
}
|
|
cond_var = g.new_tmp_var()
|
|
g.write('${g.typ(node.cond_type)} $cond_var = ')
|
|
g.expr(node.cond)
|
|
g.writeln(';')
|
|
g.stmt_path_pos << g.out.len
|
|
g.write(line)
|
|
}
|
|
if need_tmp_var {
|
|
g.empty_line = true
|
|
cur_line = g.go_before_stmt(0).trim_left(' \t')
|
|
tmp_var = g.new_tmp_var()
|
|
g.writeln('${g.typ(node.return_type)} $tmp_var;')
|
|
}
|
|
|
|
if is_expr && !need_tmp_var {
|
|
// brackets needed otherwise '?' will apply to everything on the left
|
|
g.write('(')
|
|
}
|
|
if node.is_sum_type {
|
|
g.match_expr_sumtype(node, is_expr, cond_var, tmp_var)
|
|
} else {
|
|
g.match_expr_classic(node, is_expr, cond_var, tmp_var)
|
|
}
|
|
g.write(cur_line)
|
|
if need_tmp_var {
|
|
g.write('$tmp_var')
|
|
}
|
|
if is_expr && !need_tmp_var {
|
|
g.write(')')
|
|
g.decrement_inside_ternary()
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) match_expr_sumtype(node ast.MatchExpr, is_expr bool, cond_var string, tmp_var string) {
|
|
for j, branch in node.branches {
|
|
mut sumtype_index := 0
|
|
// iterates through all types in sumtype branches
|
|
for {
|
|
g.aggregate_type_idx = sumtype_index
|
|
is_last := j == node.branches.len - 1
|
|
sym := g.table.get_type_symbol(node.cond_type)
|
|
if branch.is_else || (node.is_expr && is_last && tmp_var.len == 0) {
|
|
if is_expr && tmp_var.len == 0 {
|
|
// TODO too many branches. maybe separate ?: matches
|
|
g.write(' : ')
|
|
} else {
|
|
g.writeln('')
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.writeln('else {')
|
|
}
|
|
} else {
|
|
if j > 0 || sumtype_index > 0 {
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write(' : ')
|
|
} else {
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.write('else ')
|
|
}
|
|
}
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write('(')
|
|
} else {
|
|
if j == 0 && sumtype_index == 0 {
|
|
g.empty_line = true
|
|
}
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.write('if (')
|
|
}
|
|
g.write(cond_var)
|
|
dot_or_ptr := if node.cond_type.is_ptr() { '->' } else { '.' }
|
|
if sym.kind == .sum_type {
|
|
g.write('${dot_or_ptr}_typ == ')
|
|
g.expr(branch.exprs[sumtype_index])
|
|
} else if sym.kind == .interface_ {
|
|
if branch.exprs[sumtype_index] is ast.TypeNode {
|
|
typ := branch.exprs[sumtype_index] as ast.TypeNode
|
|
branch_sym := g.table.get_type_symbol(typ.typ)
|
|
g.write('${dot_or_ptr}_typ == _${sym.cname}_${branch_sym.cname}_index')
|
|
} else if branch.exprs[sumtype_index] is ast.None && sym.name == 'IError' {
|
|
g.write('${dot_or_ptr}_typ == _IError_None___index')
|
|
}
|
|
}
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write(') ? ')
|
|
} else {
|
|
g.writeln(') {')
|
|
}
|
|
}
|
|
if is_expr && tmp_var.len > 0
|
|
&& g.table.get_type_symbol(node.return_type).kind == .sum_type {
|
|
g.expected_cast_type = node.return_type
|
|
}
|
|
g.stmts_with_tmp_var(branch.stmts, tmp_var)
|
|
g.expected_cast_type = 0
|
|
if g.inside_ternary == 0 {
|
|
g.writeln('}')
|
|
g.stmt_path_pos << g.out.len
|
|
}
|
|
sumtype_index++
|
|
if branch.exprs.len == 0 || sumtype_index == branch.exprs.len {
|
|
break
|
|
}
|
|
}
|
|
// reset global field for next use
|
|
g.aggregate_type_idx = 0
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) match_expr_classic(node ast.MatchExpr, is_expr bool, cond_var string, tmp_var string) {
|
|
type_sym := g.table.get_type_symbol(node.cond_type)
|
|
for j, branch in node.branches {
|
|
is_last := j == node.branches.len - 1
|
|
if branch.is_else || (node.is_expr && is_last && tmp_var.len == 0) {
|
|
if node.branches.len > 1 {
|
|
if is_expr && tmp_var.len == 0 {
|
|
// TODO too many branches. maybe separate ?: matches
|
|
g.write(' : ')
|
|
} else {
|
|
g.writeln('')
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.writeln('else {')
|
|
}
|
|
}
|
|
} else {
|
|
if j > 0 {
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write(' : ')
|
|
} else {
|
|
g.writeln('')
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.write('else ')
|
|
}
|
|
}
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write('(')
|
|
} else {
|
|
if j == 0 {
|
|
g.writeln('')
|
|
}
|
|
g.write_v_source_line_info(branch.pos)
|
|
g.write('if (')
|
|
}
|
|
for i, expr in branch.exprs {
|
|
if i > 0 {
|
|
g.write(' || ')
|
|
}
|
|
match type_sym.kind {
|
|
.array {
|
|
ptr_typ := g.gen_array_equality_fn(node.cond_type)
|
|
g.write('${ptr_typ}_arr_eq($cond_var, ')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
.array_fixed {
|
|
ptr_typ := g.gen_fixed_array_equality_fn(node.cond_type)
|
|
g.write('${ptr_typ}_arr_eq($cond_var, ')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
.map {
|
|
ptr_typ := g.gen_map_equality_fn(node.cond_type)
|
|
g.write('${ptr_typ}_map_eq($cond_var, ')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
.string {
|
|
g.write('string__eq($cond_var, ')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
.struct_ {
|
|
ptr_typ := g.gen_struct_equality_fn(node.cond_type)
|
|
g.write('${ptr_typ}_struct_eq($cond_var, ')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
else {
|
|
if expr is ast.RangeExpr {
|
|
// if type is unsigned and low is 0, check is unneeded
|
|
mut skip_low := false
|
|
if expr.low is ast.IntegerLiteral {
|
|
if node.cond_type in [ast.u16_type, ast.u32_type, ast.u64_type]
|
|
&& expr.low.val == '0' {
|
|
skip_low = true
|
|
}
|
|
}
|
|
g.write('(')
|
|
if !skip_low {
|
|
g.write('$cond_var >= ')
|
|
g.expr(expr.low)
|
|
g.write(' && ')
|
|
}
|
|
g.write('$cond_var <= ')
|
|
g.expr(expr.high)
|
|
g.write(')')
|
|
} else {
|
|
g.write('$cond_var == (')
|
|
g.expr(expr)
|
|
g.write(')')
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if is_expr && tmp_var.len == 0 {
|
|
g.write(') ? ')
|
|
} else {
|
|
g.writeln(') {')
|
|
}
|
|
}
|
|
g.stmts_with_tmp_var(branch.stmts, tmp_var)
|
|
if g.inside_ternary == 0 && node.branches.len >= 1 {
|
|
g.write('}')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) map_init(node ast.MapInit) {
|
|
key_typ_str := g.typ(node.key_type)
|
|
value_typ_str := g.typ(node.value_type)
|
|
value_typ := g.table.get_type_symbol(node.value_type)
|
|
key_typ := g.table.get_final_type_symbol(node.key_type)
|
|
hash_fn, key_eq_fn, clone_fn, free_fn := g.map_fn_ptrs(key_typ)
|
|
size := node.vals.len
|
|
mut shared_styp := '' // only needed for shared &[]{...}
|
|
mut styp := ''
|
|
is_amp := g.is_amp
|
|
g.is_amp = false
|
|
if is_amp {
|
|
g.out.go_back(1) // delete the `&` already generated in `prefix_expr()
|
|
}
|
|
if g.is_shared {
|
|
mut shared_typ := node.typ.set_flag(.shared_f)
|
|
shared_styp = g.typ(shared_typ)
|
|
g.writeln('($shared_styp*)__dup_shared_map(&($shared_styp){.mtx = {0}, .val =')
|
|
} else if is_amp {
|
|
styp = g.typ(node.typ)
|
|
g.write('($styp*)memdup(ADDR($styp, ')
|
|
}
|
|
noscan_key := g.check_noscan(node.key_type)
|
|
noscan_value := g.check_noscan(node.value_type)
|
|
mut noscan := if noscan_key.len != 0 || noscan_value.len != 0 { '_noscan' } else { '' }
|
|
if noscan.len != 0 {
|
|
if noscan_key.len != 0 {
|
|
noscan += '_key'
|
|
}
|
|
if noscan_value.len != 0 {
|
|
noscan += '_value'
|
|
}
|
|
}
|
|
if size > 0 {
|
|
if value_typ.kind == .function {
|
|
g.write('new_map_init${noscan}($hash_fn, $key_eq_fn, $clone_fn, $free_fn, $size, sizeof($key_typ_str), sizeof(voidptr), _MOV(($key_typ_str[$size]){')
|
|
} else {
|
|
g.write('new_map_init${noscan}($hash_fn, $key_eq_fn, $clone_fn, $free_fn, $size, sizeof($key_typ_str), sizeof($value_typ_str), _MOV(($key_typ_str[$size]){')
|
|
}
|
|
for expr in node.keys {
|
|
g.expr(expr)
|
|
g.write(', ')
|
|
}
|
|
if value_typ.kind == .function {
|
|
g.write('}), _MOV((voidptr[$size]){')
|
|
} else {
|
|
g.write('}), _MOV(($value_typ_str[$size]){')
|
|
}
|
|
for expr in node.vals {
|
|
if expr.is_auto_deref_var() {
|
|
g.write('*')
|
|
}
|
|
g.expr(expr)
|
|
g.write(', ')
|
|
}
|
|
g.write('}))')
|
|
} else {
|
|
g.write('new_map${noscan}(sizeof($key_typ_str), sizeof($value_typ_str), $hash_fn, $key_eq_fn, $clone_fn, $free_fn)')
|
|
}
|
|
if g.is_shared {
|
|
g.write('}, sizeof($shared_styp))')
|
|
} else if is_amp {
|
|
g.write('), sizeof($styp))')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) select_expr(node ast.SelectExpr) {
|
|
is_expr := node.is_expr || g.inside_ternary > 0
|
|
cur_line := if is_expr {
|
|
g.empty_line = true
|
|
g.go_before_stmt(0)
|
|
} else {
|
|
''
|
|
}
|
|
n_channels := if node.has_exception { node.branches.len - 1 } else { node.branches.len }
|
|
mut channels := []ast.Expr{cap: n_channels}
|
|
mut objs := []ast.Expr{cap: n_channels}
|
|
mut tmp_objs := []string{cap: n_channels}
|
|
mut elem_types := []string{cap: n_channels}
|
|
mut is_push := []bool{cap: n_channels}
|
|
mut has_else := false
|
|
mut has_timeout := false
|
|
mut timeout_expr := ast.empty_expr()
|
|
mut exception_branch := -1
|
|
for j, branch in node.branches {
|
|
if branch.is_else {
|
|
has_else = true
|
|
exception_branch = j
|
|
} else if branch.is_timeout {
|
|
has_timeout = true
|
|
exception_branch = j
|
|
timeout_expr = (branch.stmt as ast.ExprStmt).expr
|
|
} else {
|
|
match branch.stmt {
|
|
ast.ExprStmt {
|
|
// send expression
|
|
expr := branch.stmt.expr as ast.InfixExpr
|
|
channels << expr.left
|
|
if expr.right is ast.Ident || expr.right is ast.IndexExpr
|
|
|| expr.right is ast.SelectorExpr || expr.right is ast.StructInit {
|
|
// addressable objects in the `C` output
|
|
objs << expr.right
|
|
tmp_objs << ''
|
|
elem_types << ''
|
|
} else {
|
|
// must be evaluated to tmp var before real `select` is performed
|
|
objs << ast.empty_expr()
|
|
tmp_obj := g.new_tmp_var()
|
|
tmp_objs << tmp_obj
|
|
el_stype := g.typ(g.table.mktyp(expr.right_type))
|
|
g.writeln('$el_stype $tmp_obj;')
|
|
}
|
|
is_push << true
|
|
}
|
|
ast.AssignStmt {
|
|
rec_expr := branch.stmt.right[0] as ast.PrefixExpr
|
|
channels << rec_expr.right
|
|
is_push << false
|
|
// create tmp unless the object with *exactly* the type we need exists already
|
|
if branch.stmt.op == .decl_assign
|
|
|| branch.stmt.right_types[0] != branch.stmt.left_types[0] {
|
|
tmp_obj := g.new_tmp_var()
|
|
tmp_objs << tmp_obj
|
|
el_stype := g.typ(branch.stmt.right_types[0])
|
|
elem_types << if branch.stmt.op == .decl_assign {
|
|
el_stype + ' '
|
|
} else {
|
|
''
|
|
}
|
|
g.writeln('$el_stype $tmp_obj;')
|
|
} else {
|
|
tmp_objs << ''
|
|
elem_types << ''
|
|
}
|
|
objs << branch.stmt.left[0]
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
}
|
|
chan_array := g.new_tmp_var()
|
|
g.write('Array_sync__Channel_ptr $chan_array = new_array_from_c_array($n_channels, $n_channels, sizeof(sync__Channel*), _MOV((sync__Channel*[$n_channels]){')
|
|
for i in 0 .. n_channels {
|
|
if i > 0 {
|
|
g.write(', ')
|
|
}
|
|
g.write('(sync__Channel*)(')
|
|
g.expr(channels[i])
|
|
g.write(')')
|
|
}
|
|
g.writeln('}));\n')
|
|
directions_array := g.new_tmp_var()
|
|
g.write('Array_sync__Direction $directions_array = new_array_from_c_array($n_channels, $n_channels, sizeof(sync__Direction), _MOV((sync__Direction[$n_channels]){')
|
|
for i in 0 .. n_channels {
|
|
if i > 0 {
|
|
g.write(', ')
|
|
}
|
|
if is_push[i] {
|
|
g.write('sync__Direction_push')
|
|
} else {
|
|
g.write('sync__Direction_pop')
|
|
}
|
|
}
|
|
g.writeln('}));\n')
|
|
objs_array := g.new_tmp_var()
|
|
g.write('Array_voidptr $objs_array = new_array_from_c_array($n_channels, $n_channels, sizeof(voidptr), _MOV((voidptr[$n_channels]){')
|
|
for i in 0 .. n_channels {
|
|
if i > 0 {
|
|
g.write(', &')
|
|
} else {
|
|
g.write('&')
|
|
}
|
|
if tmp_objs[i] == '' {
|
|
g.expr(objs[i])
|
|
} else {
|
|
g.write(tmp_objs[i])
|
|
}
|
|
}
|
|
g.writeln('}));\n')
|
|
select_result := g.new_tmp_var()
|
|
g.write('int $select_result = sync__channel_select(&/*arr*/$chan_array, $directions_array, &/*arr*/$objs_array, ')
|
|
if has_timeout {
|
|
g.expr(timeout_expr)
|
|
} else if has_else {
|
|
g.write('0')
|
|
} else {
|
|
g.write('-1')
|
|
}
|
|
g.writeln(');')
|
|
// free the temps that were created
|
|
g.writeln('array_free(&$objs_array);')
|
|
g.writeln('array_free(&$directions_array);')
|
|
g.writeln('array_free(&$chan_array);')
|
|
mut i := 0
|
|
for j in 0 .. node.branches.len {
|
|
if j > 0 {
|
|
g.write('} else ')
|
|
}
|
|
g.write('if ($select_result == ')
|
|
if j == exception_branch {
|
|
g.writeln('-1) {')
|
|
} else {
|
|
g.writeln('$i) {')
|
|
if !is_push[i] && tmp_objs[i] != '' {
|
|
g.write('\t${elem_types[i]}')
|
|
g.expr(objs[i])
|
|
g.writeln(' = ${tmp_objs[i]};')
|
|
}
|
|
i++
|
|
}
|
|
g.stmts(node.branches[j].stmts)
|
|
}
|
|
g.writeln('}')
|
|
if is_expr {
|
|
g.empty_line = false
|
|
g.write(cur_line)
|
|
g.write('($select_result != -2)')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) ident(node ast.Ident) {
|
|
prevent_sum_type_unwrapping_once := g.prevent_sum_type_unwrapping_once
|
|
g.prevent_sum_type_unwrapping_once = false
|
|
if node.name == 'lld' {
|
|
return
|
|
}
|
|
if node.name.starts_with('C.') {
|
|
g.write(util.no_dots(node.name[2..]))
|
|
return
|
|
}
|
|
if node.kind == .constant { // && !node.name.starts_with('g_') {
|
|
// TODO globals hack
|
|
g.write('_const_')
|
|
}
|
|
mut name := c_name(node.name)
|
|
// TODO: temporary, remove this
|
|
node_info := node.info
|
|
mut is_auto_heap := false
|
|
if node_info is ast.IdentVar {
|
|
// x ?int
|
|
// `x = 10` => `x.data = 10` (g.right_is_opt == false)
|
|
// `x = new_opt()` => `x = new_opt()` (g.right_is_opt == true)
|
|
// `println(x)` => `println(*(int*)x.data)`
|
|
if node_info.is_optional && !(g.is_assign_lhs && g.right_is_opt) {
|
|
g.write('/*opt*/')
|
|
styp := g.base_type(node_info.typ)
|
|
g.write('(*($styp*)${name}.data)')
|
|
return
|
|
}
|
|
if !g.is_assign_lhs && node_info.share == .shared_t {
|
|
g.write('${name}.val')
|
|
return
|
|
}
|
|
scope := g.file.scope.innermost(node.pos.pos)
|
|
if v := scope.find_var(node.name) {
|
|
is_auto_heap = v.is_auto_heap && (!g.is_assign_lhs || g.assign_op != .decl_assign)
|
|
if is_auto_heap {
|
|
g.write('(*(')
|
|
}
|
|
if v.smartcasts.len > 0 {
|
|
v_sym := g.table.get_type_symbol(v.typ)
|
|
if !prevent_sum_type_unwrapping_once {
|
|
for _ in v.smartcasts {
|
|
g.write('(')
|
|
if v_sym.kind == .sum_type && !is_auto_heap {
|
|
g.write('*')
|
|
}
|
|
}
|
|
for i, typ in v.smartcasts {
|
|
cast_sym := g.table.get_type_symbol(typ)
|
|
mut is_ptr := false
|
|
if i == 0 {
|
|
g.write(name)
|
|
if v.orig_type.is_ptr() {
|
|
is_ptr = true
|
|
}
|
|
}
|
|
dot := if is_ptr || is_auto_heap { '->' } else { '.' }
|
|
if mut cast_sym.info is ast.Aggregate {
|
|
sym := g.table.get_type_symbol(cast_sym.info.types[g.aggregate_type_idx])
|
|
g.write('${dot}_$sym.cname')
|
|
} else {
|
|
g.write('${dot}_$cast_sym.cname')
|
|
}
|
|
g.write(')')
|
|
}
|
|
if is_auto_heap {
|
|
g.write('))')
|
|
}
|
|
return
|
|
}
|
|
}
|
|
}
|
|
} else if node_info is ast.IdentFn {
|
|
if g.pref.obfuscate && g.cur_mod.name == 'main' && name.starts_with('main__') {
|
|
key := node.name
|
|
g.write('/* obf identfn: $key */')
|
|
name = g.obf_table[key] or {
|
|
panic('cgen: obf name "$key" not found, this should never happen')
|
|
}
|
|
}
|
|
}
|
|
g.write(g.get_ternary_name(name))
|
|
if is_auto_heap {
|
|
g.write('))')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) cast_expr(node ast.CastExpr) {
|
|
if g.is_amp {
|
|
// &Foo(0) => ((Foo*)0)
|
|
g.out.go_back(1)
|
|
}
|
|
g.is_amp = false
|
|
sym := g.table.get_type_symbol(node.typ)
|
|
if sym.kind == .string && !node.typ.is_ptr() {
|
|
// `string(x)` needs `tos()`, but not `&string(x)
|
|
// `tos(str, len)`, `tos2(str)`
|
|
if node.has_arg {
|
|
g.write('tos((byteptr)')
|
|
} else {
|
|
g.write('tos2((byteptr)')
|
|
}
|
|
g.expr(node.expr)
|
|
expr_sym := g.table.get_type_symbol(node.expr_type)
|
|
if expr_sym.kind == .array {
|
|
// if we are casting an array, we need to add `.data`
|
|
g.write('.data')
|
|
}
|
|
if node.has_arg {
|
|
// len argument
|
|
g.write(', ')
|
|
g.expr(node.arg)
|
|
}
|
|
g.write(')')
|
|
} else if sym.kind in [.sum_type, .interface_] {
|
|
g.expr_with_cast(node.expr, node.expr_type, node.typ)
|
|
} else if sym.kind == .struct_ && !node.typ.is_ptr() && !(sym.info as ast.Struct).is_typedef {
|
|
// deprecated, replaced by Struct{...exr}
|
|
styp := g.typ(node.typ)
|
|
g.write('*(($styp *)(&')
|
|
g.expr(node.expr)
|
|
g.write('))')
|
|
} else {
|
|
styp := g.typ(node.typ)
|
|
mut cast_label := ''
|
|
// `ast.string_type` is done for MSVC's bug
|
|
if sym.kind != .alias
|
|
|| (sym.info as ast.Alias).parent_type !in [node.expr_type, ast.string_type] {
|
|
cast_label = '($styp)'
|
|
}
|
|
if node.typ.has_flag(.optional) && node.expr is ast.None {
|
|
g.gen_optional_error(node.typ, node.expr)
|
|
} else {
|
|
g.write('(${cast_label}(')
|
|
g.expr(node.expr)
|
|
if node.expr is ast.IntegerLiteral {
|
|
if node.typ in [ast.u64_type, ast.u32_type, ast.u16_type] {
|
|
if !node.expr.val.starts_with('-') {
|
|
g.write('U')
|
|
}
|
|
}
|
|
}
|
|
g.write('))')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) concat_expr(node ast.ConcatExpr) {
|
|
styp := g.typ(node.return_type)
|
|
sym := g.table.get_type_symbol(node.return_type)
|
|
is_multi := sym.kind == .multi_return
|
|
if !is_multi {
|
|
g.expr(node.vals[0])
|
|
} else {
|
|
g.write('($styp){')
|
|
for i, expr in node.vals {
|
|
g.write('.arg$i=')
|
|
g.expr(expr)
|
|
if i < node.vals.len - 1 {
|
|
g.write(',')
|
|
}
|
|
}
|
|
g.write('}')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) need_tmp_var_in_if(node ast.IfExpr) bool {
|
|
if node.is_expr && g.inside_ternary == 0 {
|
|
if g.is_autofree || node.typ.has_flag(.optional) {
|
|
return true
|
|
}
|
|
for branch in node.branches {
|
|
if branch.cond is ast.IfGuardExpr {
|
|
return true
|
|
}
|
|
if branch.stmts.len == 1 {
|
|
if branch.stmts[0] is ast.ExprStmt {
|
|
stmt := branch.stmts[0] as ast.ExprStmt
|
|
if stmt.expr is ast.CallExpr {
|
|
if stmt.expr.is_method {
|
|
left_sym := g.table.get_type_symbol(stmt.expr.receiver_type)
|
|
if left_sym.kind in [.array, .array_fixed, .map] {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
fn (mut g Gen) if_expr(node ast.IfExpr) {
|
|
if node.is_comptime {
|
|
g.comp_if(node)
|
|
return
|
|
}
|
|
// For simpe if expressions we can use C's `?:`
|
|
// `if x > 0 { 1 } else { 2 }` => `(x > 0) ? (1) : (2)`
|
|
// For if expressions with multiple statements or another if expression inside, it's much
|
|
// easier to use a temp var, than do C tricks with commas, introduce special vars etc
|
|
// (as it used to be done).
|
|
// Always use this in -autofree, since ?: can have tmp expressions that have to be freed.
|
|
needs_tmp_var := g.need_tmp_var_in_if(node)
|
|
tmp := if needs_tmp_var { g.new_tmp_var() } else { '' }
|
|
mut cur_line := ''
|
|
if needs_tmp_var {
|
|
if node.typ.has_flag(.optional) {
|
|
g.inside_if_optional = true
|
|
}
|
|
styp := g.typ(node.typ)
|
|
cur_line = g.go_before_stmt(0)
|
|
g.empty_line = true
|
|
g.writeln('$styp $tmp; /* if prepend */')
|
|
} else if node.is_expr || g.inside_ternary != 0 {
|
|
g.inside_ternary++
|
|
g.write('(')
|
|
for i, branch in node.branches {
|
|
if i > 0 {
|
|
g.write(' : ')
|
|
}
|
|
if i < node.branches.len - 1 || !node.has_else {
|
|
g.expr(branch.cond)
|
|
g.write(' ? ')
|
|
}
|
|
g.stmts(branch.stmts)
|
|
}
|
|
if node.branches.len == 1 {
|
|
g.write(': 0')
|
|
}
|
|
g.write(')')
|
|
g.decrement_inside_ternary()
|
|
return
|
|
}
|
|
mut is_guard := false
|
|
mut guard_idx := 0
|
|
mut guard_vars := []string{}
|
|
for i, branch in node.branches {
|
|
cond := branch.cond
|
|
if cond is ast.IfGuardExpr {
|
|
if !is_guard {
|
|
is_guard = true
|
|
guard_idx = i
|
|
guard_vars = []string{len: node.branches.len}
|
|
}
|
|
if cond.expr !is ast.IndexExpr && cond.expr !is ast.PrefixExpr {
|
|
var_name := g.new_tmp_var()
|
|
guard_vars[i] = var_name
|
|
g.writeln('${g.typ(cond.expr_type)} $var_name;')
|
|
} else {
|
|
guard_vars[i] = ''
|
|
}
|
|
}
|
|
}
|
|
for i, branch in node.branches {
|
|
if i > 0 {
|
|
g.write('} else ')
|
|
}
|
|
// if last branch is `else {`
|
|
if i == node.branches.len - 1 && node.has_else {
|
|
g.writeln('{')
|
|
// define `err` only for simple `if val := opt {...} else {`
|
|
if is_guard && guard_idx == i - 1 {
|
|
cvar_name := guard_vars[guard_idx]
|
|
g.writeln('\tIError err = ${cvar_name}.err;')
|
|
}
|
|
} else {
|
|
match branch.cond {
|
|
ast.IfGuardExpr {
|
|
mut var_name := guard_vars[i]
|
|
mut short_opt := false
|
|
if var_name == '' {
|
|
short_opt = true // we don't need a further tmp, so use the one we'll get later
|
|
var_name = g.new_tmp_var()
|
|
guard_vars[i] = var_name // for `else`
|
|
g.tmp_count--
|
|
g.writeln('if (${var_name}.state == 0) {')
|
|
} else {
|
|
g.write('if ($var_name = ')
|
|
g.expr(branch.cond.expr)
|
|
g.writeln(', ${var_name}.state == 0) {')
|
|
}
|
|
if short_opt || branch.cond.var_name != '_' {
|
|
base_type := g.base_type(branch.cond.expr_type)
|
|
if short_opt {
|
|
cond_var_name := if branch.cond.var_name == '_' {
|
|
'_dummy_${g.tmp_count + 1}'
|
|
} else {
|
|
branch.cond.var_name
|
|
}
|
|
g.write('\t$base_type $cond_var_name = ')
|
|
g.expr(branch.cond.expr)
|
|
g.writeln(';')
|
|
} else {
|
|
mut is_auto_heap := false
|
|
if branch.stmts.len > 0 {
|
|
scope := g.file.scope.innermost(ast.Node(branch.stmts[branch.stmts.len - 1]).position().pos)
|
|
if v := scope.find_var(branch.cond.var_name) {
|
|
is_auto_heap = v.is_auto_heap
|
|
}
|
|
}
|
|
if is_auto_heap {
|
|
g.writeln('\t$base_type* $branch.cond.var_name = HEAP($base_type, *($base_type*)${var_name}.data);')
|
|
} else {
|
|
g.writeln('\t$base_type $branch.cond.var_name = *($base_type*)${var_name}.data;')
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
g.write('if (')
|
|
g.expr(branch.cond)
|
|
g.writeln(') {')
|
|
}
|
|
}
|
|
}
|
|
if needs_tmp_var {
|
|
g.stmts_with_tmp_var(branch.stmts, tmp)
|
|
} else {
|
|
g.stmts(branch.stmts)
|
|
}
|
|
}
|
|
g.writeln('}')
|
|
if needs_tmp_var {
|
|
g.empty_line = false
|
|
g.write('$cur_line $tmp')
|
|
}
|
|
if node.typ.has_flag(.optional) {
|
|
g.inside_if_optional = false
|
|
}
|
|
}
|
|
|
|
[inline]
|
|
fn (g &Gen) expr_is_multi_return_call(expr ast.Expr) bool {
|
|
match expr {
|
|
ast.CallExpr { return g.table.get_type_symbol(expr.return_type).kind == .multi_return }
|
|
else { return false }
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) gen_optional_error(target_type ast.Type, expr ast.Expr) {
|
|
styp := g.typ(target_type)
|
|
g.write('($styp){ .state=2, .err=')
|
|
g.expr(expr)
|
|
g.write(', .data={0} }')
|
|
}
|
|
|
|
fn (mut g Gen) return_stmt(node ast.Return) {
|
|
g.write_v_source_line_info(node.pos)
|
|
if node.exprs.len > 0 {
|
|
// skip `return $vweb.html()`
|
|
if node.exprs[0] is ast.ComptimeCall {
|
|
g.expr(node.exprs[0])
|
|
g.writeln(';')
|
|
return
|
|
}
|
|
}
|
|
|
|
g.inside_return = true
|
|
defer {
|
|
g.inside_return = false
|
|
}
|
|
// got to do a correct check for multireturn
|
|
sym := g.table.get_type_symbol(g.fn_decl.return_type)
|
|
fn_return_is_multi := sym.kind == .multi_return
|
|
fn_return_is_optional := g.fn_decl.return_type.has_flag(.optional)
|
|
mut has_semicolon := false
|
|
if node.exprs.len == 0 {
|
|
g.write_defer_stmts_when_needed()
|
|
if fn_return_is_optional {
|
|
styp := g.typ(g.fn_decl.return_type)
|
|
g.writeln('return ($styp){0};')
|
|
} else {
|
|
if g.is_autofree {
|
|
g.trace_autofree('// free before return (no values returned)')
|
|
g.autofree_scope_vars(node.pos.pos - 1, node.pos.line_nr, true)
|
|
}
|
|
g.writeln('return;')
|
|
}
|
|
return
|
|
}
|
|
tmpvar := g.new_tmp_var()
|
|
ret_typ := g.typ(g.fn_decl.return_type)
|
|
mut use_tmp_var := g.defer_stmts.len > 0 || g.defer_profile_code.len > 0
|
|
// handle promoting none/error/function returning 'Option'
|
|
if fn_return_is_optional {
|
|
optional_none := node.exprs[0] is ast.None
|
|
ftyp := g.typ(node.types[0])
|
|
mut is_regular_option := ftyp == 'Option'
|
|
if optional_none || is_regular_option || node.types[0] == ast.error_type_idx {
|
|
if !isnil(g.fn_decl) && g.fn_decl.is_test {
|
|
test_error_var := g.new_tmp_var()
|
|
g.write('$ret_typ $test_error_var = ')
|
|
g.gen_optional_error(g.fn_decl.return_type, node.exprs[0])
|
|
g.writeln(';')
|
|
g.write_defer_stmts_when_needed()
|
|
g.gen_failing_return_error_for_test_fn(node, test_error_var)
|
|
return
|
|
}
|
|
if use_tmp_var {
|
|
g.write('$ret_typ $tmpvar = ')
|
|
} else {
|
|
g.write('return ')
|
|
}
|
|
g.gen_optional_error(g.fn_decl.return_type, node.exprs[0])
|
|
g.writeln(';')
|
|
if use_tmp_var {
|
|
g.write_defer_stmts_when_needed()
|
|
g.writeln('return $tmpvar;')
|
|
}
|
|
return
|
|
}
|
|
}
|
|
// regular cases
|
|
if fn_return_is_multi && node.exprs.len > 0 && !g.expr_is_multi_return_call(node.exprs[0]) {
|
|
if node.exprs.len == 1 && node.exprs[0] is ast.IfExpr {
|
|
// use a temporary for `return if cond { x,y } else { a,b }`
|
|
g.write('$ret_typ $tmpvar = ')
|
|
g.expr(node.exprs[0])
|
|
g.writeln(';')
|
|
g.write_defer_stmts_when_needed()
|
|
g.writeln('return $tmpvar;')
|
|
return
|
|
}
|
|
// typ_sym := g.table.get_type_symbol(g.fn_decl.return_type)
|
|
// mr_info := typ_sym.info as ast.MultiReturn
|
|
mut styp := ''
|
|
if fn_return_is_optional {
|
|
g.writeln('$ret_typ $tmpvar;')
|
|
styp = g.base_type(g.fn_decl.return_type)
|
|
g.write('opt_ok(&($styp/*X*/[]) { ')
|
|
} else {
|
|
if use_tmp_var {
|
|
g.write('$ret_typ $tmpvar = ')
|
|
} else {
|
|
g.write('return ')
|
|
}
|
|
styp = g.typ(g.fn_decl.return_type)
|
|
}
|
|
// Use this to keep the tmp assignments in order
|
|
mut multi_unpack := ''
|
|
g.write('($styp){')
|
|
mut arg_idx := 0
|
|
for i, expr in node.exprs {
|
|
// Check if we are dealing with a multi return and handle it seperately
|
|
if g.expr_is_multi_return_call(expr) {
|
|
c := expr as ast.CallExpr
|
|
expr_sym := g.table.get_type_symbol(c.return_type)
|
|
// Create a tmp for this call
|
|
mut tmp := g.new_tmp_var()
|
|
if !c.return_type.has_flag(.optional) {
|
|
s := g.go_before_stmt(0)
|
|
expr_styp := g.typ(c.return_type)
|
|
g.write('$expr_styp $tmp=')
|
|
g.expr(expr)
|
|
g.writeln(';')
|
|
multi_unpack += g.go_before_stmt(0)
|
|
g.write(s)
|
|
} else {
|
|
s := g.go_before_stmt(0)
|
|
// TODO
|
|
// I (emily) am sorry for doing this
|
|
// I cant find another way to do this so right now
|
|
// this will have to do.
|
|
g.tmp_count--
|
|
g.expr(expr)
|
|
multi_unpack += g.go_before_stmt(0)
|
|
g.write(s)
|
|
// modify tmp so that it is the opt deref
|
|
// TODO copy-paste from cgen.v:2397
|
|
expr_styp := g.base_type(c.return_type)
|
|
tmp = ('/*opt*/(*($expr_styp*)${tmp}.data)')
|
|
}
|
|
expr_types := expr_sym.mr_info().types
|
|
for j, _ in expr_types {
|
|
g.write('.arg$arg_idx=${tmp}.arg$j')
|
|
if j < expr_types.len || i < node.exprs.len - 1 {
|
|
g.write(',')
|
|
}
|
|
arg_idx++
|
|
}
|
|
continue
|
|
}
|
|
g.write('.arg$arg_idx=')
|
|
g.expr(expr)
|
|
arg_idx++
|
|
if i < node.exprs.len - 1 {
|
|
g.write(', ')
|
|
}
|
|
}
|
|
g.write('}')
|
|
if fn_return_is_optional {
|
|
g.writeln(' }, (Option*)(&$tmpvar), sizeof($styp));')
|
|
g.write_defer_stmts_when_needed()
|
|
g.write('return $tmpvar')
|
|
}
|
|
// Make sure to add our unpacks
|
|
if multi_unpack.len > 0 {
|
|
g.insert_before_stmt(multi_unpack)
|
|
}
|
|
if use_tmp_var && !fn_return_is_optional {
|
|
if !has_semicolon {
|
|
g.writeln(';')
|
|
}
|
|
g.write_defer_stmts_when_needed()
|
|
g.writeln('return $tmpvar;')
|
|
has_semicolon = true
|
|
}
|
|
} else if node.exprs.len >= 1 {
|
|
// normal return
|
|
return_sym := g.table.get_type_symbol(node.types[0])
|
|
expr0 := node.exprs[0]
|
|
// `return opt_ok(expr)` for functions that expect an optional
|
|
expr_type_is_opt := match expr0 {
|
|
ast.CallExpr {
|
|
expr0.return_type.has_flag(.optional) && expr0.or_block.kind == .absent
|
|
}
|
|
else {
|
|
node.types[0].has_flag(.optional)
|
|
}
|
|
}
|
|
if fn_return_is_optional && !expr_type_is_opt && return_sym.name != 'Option' {
|
|
styp := g.base_type(g.fn_decl.return_type)
|
|
g.writeln('$ret_typ $tmpvar;')
|
|
g.write('opt_ok(&($styp[]) { ')
|
|
if !g.fn_decl.return_type.is_ptr() && node.types[0].is_ptr() {
|
|
if !(node.exprs[0] is ast.Ident && !g.is_amp) {
|
|
g.write('*')
|
|
}
|
|
}
|
|
for i, expr in node.exprs {
|
|
g.expr_with_cast(expr, node.types[i], g.fn_decl.return_type.clear_flag(.optional))
|
|
if i < node.exprs.len - 1 {
|
|
g.write(', ')
|
|
}
|
|
}
|
|
g.writeln(' }, (Option*)(&$tmpvar), sizeof($styp));')
|
|
g.write_defer_stmts_when_needed()
|
|
g.autofree_scope_vars(node.pos.pos - 1, node.pos.line_nr, true)
|
|
g.writeln('return $tmpvar;')
|
|
return
|
|
}
|
|
// autofree before `return`
|
|
// set free_parent_scopes to true, since all variables defined in parent
|
|
// scopes need to be freed before the return
|
|
if g.is_autofree {
|
|
expr := node.exprs[0]
|
|
if expr is ast.Ident {
|
|
g.returned_var_name = expr.name
|
|
}
|
|
}
|
|
// free := g.is_autofree && !g.is_builtin_mod // node.exprs[0] is ast.CallExpr
|
|
// Create a temporary variable for the return expression
|
|
use_tmp_var = use_tmp_var || !g.is_builtin_mod // node.exprs[0] is ast.CallExpr
|
|
if use_tmp_var {
|
|
// `return foo(a, b, c)`
|
|
// `tmp := foo(a, b, c); free(a); free(b); free(c); return tmp;`
|
|
// Save return value in a temp var so that all args (a,b,c) can be freed
|
|
// Don't use a tmp var if a variable is simply returned: `return x`
|
|
if node.exprs[0] !is ast.Ident {
|
|
g.write('$ret_typ $tmpvar = ')
|
|
} else {
|
|
use_tmp_var = false
|
|
g.write_defer_stmts_when_needed()
|
|
if !g.is_builtin_mod {
|
|
g.autofree_scope_vars(node.pos.pos - 1, node.pos.line_nr, true)
|
|
}
|
|
g.write('return ')
|
|
}
|
|
} else {
|
|
g.autofree_scope_vars(node.pos.pos - 1, node.pos.line_nr, true)
|
|
g.write('return ')
|
|
}
|
|
if expr0.is_auto_deref_var() {
|
|
if g.fn_decl.return_type.is_ptr() {
|
|
var_str := g.expr_string(expr0)
|
|
g.write(var_str.trim('&'))
|
|
} else {
|
|
g.write('*')
|
|
g.expr(expr0)
|
|
}
|
|
} else {
|
|
g.expr_with_cast(node.exprs[0], node.types[0], g.fn_decl.return_type)
|
|
}
|
|
if use_tmp_var {
|
|
g.writeln(';')
|
|
has_semicolon = true
|
|
g.write_defer_stmts_when_needed()
|
|
if !g.is_builtin_mod {
|
|
g.autofree_scope_vars(node.pos.pos - 1, node.pos.line_nr, true)
|
|
}
|
|
g.write('return $tmpvar')
|
|
has_semicolon = false
|
|
}
|
|
} else { // if node.exprs.len == 0 {
|
|
println('this should never happen')
|
|
g.write('/*F*/return')
|
|
}
|
|
if !has_semicolon {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) const_decl(node ast.ConstDecl) {
|
|
g.inside_const = true
|
|
defer {
|
|
g.inside_const = false
|
|
}
|
|
for field in node.fields {
|
|
if g.pref.skip_unused {
|
|
if field.name !in g.table.used_consts {
|
|
$if trace_skip_unused_consts ? {
|
|
eprintln('>> skipping unused const name: $field.name')
|
|
}
|
|
continue
|
|
}
|
|
}
|
|
|
|
name := c_name(field.name)
|
|
/*
|
|
if field.typ == ast.byte_type {
|
|
g.const_decl_simple_define(name, val)
|
|
return
|
|
}
|
|
*/
|
|
/*
|
|
if ast.is_number(field.typ) {
|
|
g.const_decl_simple_define(name, val)
|
|
} else if field.typ == ast.string_type {
|
|
g.definitions.writeln('string _const_$name; // a string literal, inited later')
|
|
if g.pref.build_mode != .build_module {
|
|
g.stringliterals.writeln('\t_const_$name = $val;')
|
|
}
|
|
} else {
|
|
*/
|
|
field_expr := field.expr
|
|
match field.expr {
|
|
ast.ArrayInit {
|
|
if field.expr.is_fixed {
|
|
styp := g.typ(field.expr.typ)
|
|
if g.pref.build_mode != .build_module {
|
|
val := g.expr_string(field.expr)
|
|
g.definitions.writeln('$styp _const_$name = $val; // fixed array const')
|
|
} else {
|
|
g.definitions.writeln('$styp _const_$name; // fixed array const')
|
|
}
|
|
} else {
|
|
g.const_decl_init_later(field.mod, name, field.expr, field.typ, false)
|
|
}
|
|
}
|
|
ast.StringLiteral {
|
|
g.definitions.writeln('string _const_$name; // a string literal, inited later')
|
|
if g.pref.build_mode != .build_module {
|
|
val := g.expr_string(field.expr)
|
|
g.stringliterals.writeln('\t_const_$name = $val;')
|
|
}
|
|
}
|
|
ast.CallExpr {
|
|
if field.expr.return_type.has_flag(.optional) {
|
|
unwrap_option := field.expr.or_block.kind != .absent
|
|
g.const_decl_init_later(field.mod, name, field.expr, field.typ, unwrap_option)
|
|
} else {
|
|
g.const_decl_init_later(field.mod, name, field.expr, field.typ, false)
|
|
}
|
|
}
|
|
else {
|
|
if is_simple_define_const(field) {
|
|
// "Simple" expressions are not going to need multiple statements,
|
|
// only the ones which are inited later, so it's safe to use expr_string
|
|
g.const_decl_simple_define(name, g.expr_string(field_expr))
|
|
} else {
|
|
g.const_decl_init_later(field.mod, name, field.expr, field.typ, false)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn is_simple_define_const(obj ast.ScopeObject) bool {
|
|
if obj is ast.ConstField {
|
|
return match obj.expr {
|
|
ast.CharLiteral, ast.FloatLiteral, ast.IntegerLiteral { true }
|
|
else { false }
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
fn (mut g Gen) const_decl_simple_define(name string, val string) {
|
|
// Simple expressions should use a #define
|
|
// so that we don't pollute the binary with unnecessary global vars
|
|
// Do not do this when building a module, otherwise the consts
|
|
// will not be accessible.
|
|
g.definitions.write_string('#define _const_$name ')
|
|
g.definitions.writeln(val)
|
|
}
|
|
|
|
fn (mut g Gen) const_decl_init_later(mod string, name string, expr ast.Expr, typ ast.Type, unwrap_option bool) {
|
|
// Initialize more complex consts in `void _vinit/2{}`
|
|
// (C doesn't allow init expressions that can't be resolved at compile time).
|
|
mut styp := g.typ(typ)
|
|
cname := '_const_$name'
|
|
g.definitions.writeln('$styp $cname; // inited later')
|
|
if cname == '_const_os__args' {
|
|
if g.pref.os == .windows {
|
|
g.inits[mod].writeln('\t_const_os__args = os__init_os_args_wide(___argc, (byteptr*)___argv);')
|
|
} else {
|
|
g.inits[mod].writeln('\t_const_os__args = os__init_os_args(___argc, (byte**)___argv);')
|
|
}
|
|
} else {
|
|
if unwrap_option {
|
|
g.inits[mod].writeln(g.expr_string_surround('\t$cname = *($styp*)', expr,
|
|
'.data;'))
|
|
} else {
|
|
g.inits[mod].writeln(g.expr_string_surround('\t$cname = ', expr, ';'))
|
|
}
|
|
}
|
|
if g.is_autofree {
|
|
sym := g.table.get_type_symbol(typ)
|
|
if styp.starts_with('Array_') {
|
|
g.cleanups[mod].writeln('\tarray_free(&$cname);')
|
|
} else if styp == 'string' {
|
|
g.cleanups[mod].writeln('\tstring_free(&$cname);')
|
|
} else if sym.kind == .map {
|
|
g.cleanups[mod].writeln('\tmap_free(&$cname);')
|
|
} else if styp == 'IError' {
|
|
g.cleanups[mod].writeln('\tIError_free(&$cname);')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) global_decl(node ast.GlobalDecl) {
|
|
mod := if g.pref.build_mode == .build_module && g.is_builtin_mod { 'static ' } else { '' }
|
|
for field in node.fields {
|
|
styp := g.typ(field.typ)
|
|
if field.has_expr {
|
|
g.definitions.writeln('$mod$styp $field.name = $field.expr; // global')
|
|
} else {
|
|
g.definitions.writeln('$mod$styp $field.name; // global')
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) go_back_out(n int) {
|
|
g.out.go_back(n)
|
|
}
|
|
|
|
const (
|
|
skip_struct_init = ['struct stat', 'struct addrinfo']
|
|
)
|
|
|
|
fn (mut g Gen) struct_init(struct_init ast.StructInit) {
|
|
styp := g.typ(struct_init.typ)
|
|
mut shared_styp := '' // only needed for shared x := St{...
|
|
if styp in c.skip_struct_init {
|
|
// needed for c++ compilers
|
|
g.go_back_out(3)
|
|
return
|
|
}
|
|
sym := g.table.get_final_type_symbol(g.unwrap_generic(struct_init.typ))
|
|
is_amp := g.is_amp
|
|
is_multiline := struct_init.fields.len > 5
|
|
g.is_amp = false // reset the flag immediately so that other struct inits in this expr are handled correctly
|
|
if is_amp {
|
|
g.out.go_back(1) // delete the `&` already generated in `prefix_expr()
|
|
}
|
|
if g.is_shared && !g.inside_opt_data && !g.is_arraymap_set {
|
|
mut shared_typ := struct_init.typ.set_flag(.shared_f)
|
|
shared_styp = g.typ(shared_typ)
|
|
g.writeln('($shared_styp*)__dup${shared_styp}(&($shared_styp){.mtx = {0}, .val =($styp){')
|
|
} else if is_amp {
|
|
g.write('($styp*)memdup(&($styp){')
|
|
} else if struct_init.typ.is_ptr() {
|
|
basetyp := g.typ(struct_init.typ.set_nr_muls(0))
|
|
if is_multiline {
|
|
g.writeln('&($basetyp){')
|
|
} else {
|
|
g.write('&($basetyp){')
|
|
}
|
|
} else {
|
|
if is_multiline {
|
|
g.writeln('($styp){')
|
|
} else {
|
|
g.write('($styp){')
|
|
}
|
|
}
|
|
// mut fields := []string{}
|
|
mut inited_fields := map[string]int{} // TODO this is done in checker, move to ast node
|
|
/*
|
|
if struct_init.fields.len == 0 && struct_init.exprs.len > 0 {
|
|
// Get fields for {a,b} short syntax. Fields array wasn't set in the parser.
|
|
for f in info.fields {
|
|
fields << f.name
|
|
}
|
|
} else {
|
|
fields = struct_init.fields
|
|
}
|
|
*/
|
|
if is_multiline {
|
|
g.indent++
|
|
}
|
|
// User set fields
|
|
mut initialized := false
|
|
for i, field in struct_init.fields {
|
|
inited_fields[field.name] = i
|
|
if sym.kind != .struct_ {
|
|
field_name := c_name(field.name)
|
|
g.write('.$field_name = ')
|
|
if field.typ == 0 {
|
|
g.checker_bug('struct init, field.typ is 0', field.pos)
|
|
}
|
|
field_type_sym := g.table.get_type_symbol(field.typ)
|
|
mut cloned := false
|
|
if g.is_autofree && !field.typ.is_ptr() && field_type_sym.kind in [.array, .string] {
|
|
g.write('/*clone1*/')
|
|
if g.gen_clone_assignment(field.expr, field_type_sym, false) {
|
|
cloned = true
|
|
}
|
|
}
|
|
if !cloned {
|
|
if (field.expected_type.is_ptr() && !field.expected_type.has_flag(.shared_f))
|
|
&& !(field.typ.is_ptr() || field.typ.is_pointer()) && !field.typ.is_number() {
|
|
g.write('/* autoref */&')
|
|
}
|
|
g.expr_with_cast(field.expr, field.typ, field.expected_type)
|
|
}
|
|
if i != struct_init.fields.len - 1 {
|
|
if is_multiline {
|
|
g.writeln(',')
|
|
} else {
|
|
g.write(', ')
|
|
}
|
|
}
|
|
initialized = true
|
|
}
|
|
}
|
|
// The rest of the fields are zeroed.
|
|
// `inited_fields` is a list of fields that have been init'ed, they are skipped
|
|
mut nr_fields := 1
|
|
if sym.kind == .struct_ {
|
|
info := sym.info as ast.Struct
|
|
nr_fields = info.fields.len
|
|
if info.is_union && struct_init.fields.len > 1 {
|
|
verror('union must not have more than 1 initializer')
|
|
}
|
|
if !info.is_union {
|
|
for embed in info.embeds {
|
|
embed_sym := g.table.get_type_symbol(embed)
|
|
embed_name := embed_sym.embed_name()
|
|
if embed_name !in inited_fields {
|
|
default_init := ast.StructInit{
|
|
typ: embed
|
|
}
|
|
g.write('.$embed_name = ')
|
|
g.struct_init(default_init)
|
|
if is_multiline {
|
|
g.writeln(',')
|
|
} else {
|
|
g.write(',')
|
|
}
|
|
initialized = true
|
|
}
|
|
}
|
|
}
|
|
// g.zero_struct_fields(info, inited_fields)
|
|
// nr_fields = info.fields.len
|
|
for mut field in info.fields {
|
|
if mut sym.info is ast.Struct {
|
|
mut found_equal_fields := 0
|
|
for mut sifield in sym.info.fields {
|
|
if sifield.name == field.name {
|
|
found_equal_fields++
|
|
break
|
|
}
|
|
}
|
|
if found_equal_fields == 0 {
|
|
continue
|
|
}
|
|
}
|
|
if field.name in inited_fields {
|
|
sfield := struct_init.fields[inited_fields[field.name]]
|
|
field_name := c_name(sfield.name)
|
|
if sfield.typ == 0 {
|
|
continue
|
|
}
|
|
g.write('.$field_name = ')
|
|
field_type_sym := g.table.get_type_symbol(sfield.typ)
|
|
mut cloned := false
|
|
if g.is_autofree && !sfield.typ.is_ptr() && field_type_sym.kind in [.array, .string] {
|
|
g.write('/*clone1*/')
|
|
if g.gen_clone_assignment(sfield.expr, field_type_sym, false) {
|
|
cloned = true
|
|
}
|
|
}
|
|
if !cloned {
|
|
if (sfield.expected_type.is_ptr() && !sfield.expected_type.has_flag(.shared_f))
|
|
&& !(sfield.typ.is_ptr() || sfield.typ.is_pointer())
|
|
&& !sfield.typ.is_number() {
|
|
g.write('/* autoref */&')
|
|
}
|
|
g.expr_with_cast(sfield.expr, sfield.typ, sfield.expected_type)
|
|
}
|
|
if is_multiline {
|
|
g.writeln(',')
|
|
} else {
|
|
g.write(',')
|
|
}
|
|
initialized = true
|
|
continue
|
|
}
|
|
if info.is_union {
|
|
// unions thould have exactly one explicit initializer
|
|
continue
|
|
}
|
|
if field.typ.has_flag(.optional) {
|
|
field_name := c_name(field.name)
|
|
g.write('.$field_name = {0},')
|
|
initialized = true
|
|
continue
|
|
}
|
|
if field.typ in info.embeds {
|
|
continue
|
|
}
|
|
if struct_init.has_update_expr {
|
|
g.expr(struct_init.update_expr)
|
|
if struct_init.update_expr_type.is_ptr() {
|
|
g.write('->')
|
|
} else {
|
|
g.write('.')
|
|
}
|
|
g.write(field.name)
|
|
} else {
|
|
if !g.zero_struct_field(field) {
|
|
nr_fields--
|
|
continue
|
|
}
|
|
}
|
|
if is_multiline {
|
|
g.writeln(',')
|
|
} else {
|
|
g.write(',')
|
|
}
|
|
initialized = true
|
|
}
|
|
}
|
|
if is_multiline {
|
|
g.indent--
|
|
}
|
|
|
|
if !initialized {
|
|
if nr_fields > 0 {
|
|
g.write('0')
|
|
} else {
|
|
g.write('EMPTY_STRUCT_INITIALIZATION')
|
|
}
|
|
}
|
|
|
|
g.write('}')
|
|
if g.is_shared && !g.inside_opt_data && !g.is_arraymap_set {
|
|
g.write('}, sizeof($shared_styp))')
|
|
} else if is_amp {
|
|
g.write(', sizeof($styp))')
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) zero_struct_field(field ast.StructField) bool {
|
|
sym := g.table.get_type_symbol(field.typ)
|
|
if sym.kind == .struct_ {
|
|
info := sym.info as ast.Struct
|
|
if info.fields.len == 0 {
|
|
return false
|
|
}
|
|
}
|
|
field_name := c_name(field.name)
|
|
g.write('.$field_name = ')
|
|
if field.has_default_expr {
|
|
if sym.kind in [.sum_type, .interface_] {
|
|
g.expr_with_cast(field.default_expr, field.default_expr_typ, field.typ)
|
|
return true
|
|
}
|
|
g.expr(field.default_expr)
|
|
} else {
|
|
g.write(g.type_default(field.typ))
|
|
}
|
|
return true
|
|
}
|
|
|
|
// fn (mut g Gen) zero_struct_fields(info ast.Struct, inited_fields map[string]int) {
|
|
// }
|
|
// { user | name: 'new name' }
|
|
fn (mut g Gen) assoc(node ast.Assoc) {
|
|
g.writeln('// assoc')
|
|
if node.typ == 0 {
|
|
return
|
|
}
|
|
styp := g.typ(node.typ)
|
|
g.writeln('($styp){')
|
|
mut inited_fields := map[string]int{}
|
|
for i, field in node.fields {
|
|
inited_fields[field] = i
|
|
}
|
|
// Merge inited_fields in the rest of the fields.
|
|
sym := g.table.get_type_symbol(node.typ)
|
|
info := sym.info as ast.Struct
|
|
for field in info.fields {
|
|
field_name := c_name(field.name)
|
|
if field.name in inited_fields {
|
|
g.write('\t.$field_name = ')
|
|
g.expr(node.exprs[inited_fields[field.name]])
|
|
g.writeln(', ')
|
|
} else {
|
|
g.writeln('\t.$field_name = ${node.var_name}.$field_name,')
|
|
}
|
|
}
|
|
g.write('}')
|
|
if g.is_amp {
|
|
g.write(', sizeof($styp))')
|
|
}
|
|
}
|
|
|
|
fn verror(s string) {
|
|
util.verror('cgen error', s)
|
|
}
|
|
|
|
fn (g &Gen) error(s string, pos token.Position) {
|
|
ferror := util.formatted_error('cgen error:', s, g.file.path, pos)
|
|
eprintln(ferror)
|
|
exit(1)
|
|
}
|
|
|
|
fn (g &Gen) checker_bug(s string, pos token.Position) {
|
|
g.error('checker bug; $s', pos)
|
|
}
|
|
|
|
fn (mut g Gen) write_init_function() {
|
|
if g.pref.is_liveshared {
|
|
return
|
|
}
|
|
fn_vinit_start_pos := g.out.len
|
|
// ___argv is declared as voidptr here, because that unifies the windows/unix logic
|
|
g.writeln('void _vinit(int ___argc, voidptr ___argv) {')
|
|
if g.is_autofree {
|
|
// Pre-allocate the string buffer
|
|
// s_str_buf_size := os.getenv('V_STRBUF_MB')
|
|
// mb_size := if s_str_buf_size == '' { 1 } else { s_str_buf_size.int() }
|
|
// g.writeln('g_str_buf = malloc( ${mb_size} * 1024 * 1000 );')
|
|
}
|
|
if g.pref.prealloc {
|
|
g.writeln('prealloc_vinit();')
|
|
}
|
|
// NB: the as_cast table should be *before* the other constant initialize calls,
|
|
// because it may be needed during const initialization of builtin and during
|
|
// calling module init functions too, just in case they do fail...
|
|
g.write('\tas_cast_type_indexes = ')
|
|
g.writeln(g.as_cast_name_table())
|
|
//
|
|
g.writeln('\tbuiltin_init();')
|
|
g.writeln('\tvinit_string_literals();')
|
|
//
|
|
for mod_name in g.table.modules {
|
|
g.writeln('\t// Initializations for module $mod_name :')
|
|
g.write(g.inits[mod_name].str())
|
|
init_fn_name := '${mod_name}.init'
|
|
if initfn := g.table.find_fn(init_fn_name) {
|
|
if initfn.return_type == ast.void_type && initfn.params.len == 0 {
|
|
mod_c_name := util.no_dots(mod_name)
|
|
init_fn_c_name := '${mod_c_name}__init'
|
|
g.writeln('\t${init_fn_c_name}();')
|
|
}
|
|
}
|
|
}
|
|
g.writeln('}')
|
|
if g.pref.printfn_list.len > 0 && '_vinit' in g.pref.printfn_list {
|
|
println(g.out.after(fn_vinit_start_pos))
|
|
}
|
|
//
|
|
fn_vcleanup_start_pos := g.out.len
|
|
g.writeln('void _vcleanup() {')
|
|
if g.is_autofree {
|
|
// g.writeln('puts("cleaning up...");')
|
|
reversed_table_modules := g.table.modules.reverse()
|
|
for mod_name in reversed_table_modules {
|
|
g.writeln('\t// Cleanups for module $mod_name :')
|
|
g.writeln(g.cleanups[mod_name].str())
|
|
}
|
|
// g.writeln('\tfree(g_str_buf);')
|
|
g.writeln('\tarray_free(&as_cast_type_indexes);')
|
|
}
|
|
g.writeln('}')
|
|
if g.pref.printfn_list.len > 0 && '_vcleanup' in g.pref.printfn_list {
|
|
println(g.out.after(fn_vcleanup_start_pos))
|
|
}
|
|
//
|
|
needs_constructor := g.pref.is_shared && g.pref.os != .windows
|
|
if needs_constructor {
|
|
// shared libraries need a way to call _vinit/2. For that purpose,
|
|
// provide a constructor/destructor pair, ensuring that all constants
|
|
// are initialized just once, and that they will be freed too.
|
|
// NB: os.args in this case will be [].
|
|
g.writeln('__attribute__ ((constructor))')
|
|
g.writeln('void _vinit_caller() {')
|
|
g.writeln('\tstatic bool once = false; if (once) {return;} once = true;')
|
|
g.writeln('\t_vinit(0,0);')
|
|
g.writeln('}')
|
|
|
|
g.writeln('__attribute__ ((destructor))')
|
|
g.writeln('void _vcleanup_caller() {')
|
|
g.writeln('\tstatic bool once = false; if (once) {return;} once = true;')
|
|
g.writeln('\t_vcleanup();')
|
|
g.writeln('}')
|
|
}
|
|
}
|
|
|
|
const (
|
|
builtins = ['string', 'array', 'DenseArray', 'map', 'Error', 'IError', 'Option']
|
|
)
|
|
|
|
fn (mut g Gen) write_builtin_types() {
|
|
mut builtin_types := []ast.TypeSymbol{} // builtin types
|
|
// builtin types need to be on top
|
|
// everything except builtin will get sorted
|
|
for builtin_name in c.builtins {
|
|
sym := g.table.type_symbols[g.table.type_idxs[builtin_name]]
|
|
if sym.kind == .interface_ {
|
|
g.write_interface_typesymbol_declaration(sym)
|
|
} else {
|
|
builtin_types << sym
|
|
}
|
|
}
|
|
g.write_types(builtin_types)
|
|
}
|
|
|
|
// C struct definitions, ordered
|
|
// Sort the types, make sure types that are referenced by other types
|
|
// are added before them.
|
|
fn (mut g Gen) write_sorted_types() {
|
|
mut types := []ast.TypeSymbol{} // structs that need to be sorted
|
|
for typ in g.table.type_symbols {
|
|
if typ.name !in c.builtins {
|
|
types << typ
|
|
}
|
|
}
|
|
// sort structs
|
|
types_sorted := g.sort_structs(types)
|
|
// Generate C code
|
|
g.type_definitions.writeln('// builtin types:')
|
|
g.type_definitions.writeln('//------------------ #endbuiltin')
|
|
g.write_types(types_sorted)
|
|
}
|
|
|
|
fn (mut g Gen) write_types(types []ast.TypeSymbol) {
|
|
for typ in types {
|
|
if typ.name.starts_with('C.') {
|
|
continue
|
|
}
|
|
// sym := g.table.get_type_symbol(typ)
|
|
mut name := typ.cname
|
|
match mut typ.info {
|
|
ast.Struct {
|
|
if typ.info.is_generic {
|
|
continue
|
|
}
|
|
if name.contains('_T_') {
|
|
g.typedefs.writeln('typedef struct $name $name;')
|
|
}
|
|
// TODO avoid buffer manip
|
|
start_pos := g.type_definitions.len
|
|
|
|
mut pre_pragma := ''
|
|
mut post_pragma := ''
|
|
|
|
for attr in typ.info.attrs {
|
|
match attr.name {
|
|
'_pack' {
|
|
pre_pragma += '#pragma pack(push, $attr.arg)\n'
|
|
post_pragma += '#pragma pack(pop)'
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
|
|
g.type_definitions.writeln(pre_pragma)
|
|
|
|
if typ.info.is_union {
|
|
g.type_definitions.writeln('union $name {')
|
|
} else {
|
|
g.type_definitions.writeln('struct $name {')
|
|
}
|
|
if typ.info.fields.len > 0 || typ.info.embeds.len > 0 {
|
|
for field in typ.info.fields {
|
|
// Some of these structs may want to contain
|
|
// optionals that may not be defined at this point
|
|
// if this is the case then we are going to
|
|
// buffer manip out in front of the struct
|
|
// write the optional in and then continue
|
|
if field.typ.has_flag(.optional) {
|
|
// Dont use g.typ() here becuase it will register
|
|
// optional and we dont want that
|
|
styp, base := g.optional_type_name(field.typ)
|
|
if styp !in g.optionals {
|
|
last_text := g.type_definitions.after(start_pos).clone()
|
|
g.type_definitions.go_back_to(start_pos)
|
|
g.optionals << styp
|
|
g.typedefs2.writeln('typedef struct $styp $styp;')
|
|
g.type_definitions.writeln('${g.optional_type_text(styp,
|
|
base)};')
|
|
g.type_definitions.write_string(last_text)
|
|
}
|
|
}
|
|
type_name := g.typ(field.typ)
|
|
field_name := c_name(field.name)
|
|
g.type_definitions.writeln('\t$type_name $field_name;')
|
|
}
|
|
} else {
|
|
g.type_definitions.writeln('\tEMPTY_STRUCT_DECLARATION;')
|
|
}
|
|
// g.type_definitions.writeln('} $name;\n')
|
|
//
|
|
ti_attrs := if typ.info.attrs.contains('packed') {
|
|
'__attribute__((__packed__))'
|
|
} else {
|
|
''
|
|
}
|
|
g.type_definitions.writeln('}$ti_attrs;\n')
|
|
g.type_definitions.writeln(post_pragma)
|
|
}
|
|
ast.Alias {
|
|
// ast.Alias { TODO
|
|
}
|
|
ast.Thread {
|
|
if g.pref.os == .windows {
|
|
if name == '__v_thread' {
|
|
g.type_definitions.writeln('typedef HANDLE $name;')
|
|
} else {
|
|
// Windows can only return `u32` (no void*) from a thread, so the
|
|
// V gohandle must maintain a pointer to the return value
|
|
g.type_definitions.writeln('typedef struct {')
|
|
g.type_definitions.writeln('\tvoid* ret_ptr;')
|
|
g.type_definitions.writeln('\tHANDLE handle;')
|
|
g.type_definitions.writeln('} $name;')
|
|
}
|
|
} else {
|
|
if !g.pref.is_bare {
|
|
g.type_definitions.writeln('typedef pthread_t $name;')
|
|
}
|
|
}
|
|
}
|
|
ast.SumType {
|
|
g.typedefs.writeln('typedef struct $name $name;')
|
|
g.type_definitions.writeln('')
|
|
g.type_definitions.writeln('// Union sum type $name = ')
|
|
for variant in typ.info.variants {
|
|
g.type_definitions.writeln('// | ${variant:4d} = ${g.typ(variant.idx()):-20s}')
|
|
}
|
|
g.type_definitions.writeln('struct $name {')
|
|
g.type_definitions.writeln('\tunion {')
|
|
for variant in typ.info.variants {
|
|
variant_sym := g.table.get_type_symbol(variant)
|
|
g.type_definitions.writeln('\t\t${g.typ(variant.to_ptr())} _$variant_sym.cname;')
|
|
}
|
|
g.type_definitions.writeln('\t};')
|
|
g.type_definitions.writeln('\tint _typ;')
|
|
if typ.info.fields.len > 0 {
|
|
g.writeln('\t// pointers to common sumtype fields')
|
|
for field in typ.info.fields {
|
|
g.type_definitions.writeln('\t${g.typ(field.typ.to_ptr())} $field.name;')
|
|
}
|
|
}
|
|
g.type_definitions.writeln('};')
|
|
g.type_definitions.writeln('')
|
|
}
|
|
ast.ArrayFixed {
|
|
elem_sym := g.table.get_type_symbol(typ.info.elem_type)
|
|
if !elem_sym.is_builtin() && !typ.info.elem_type.has_flag(.generic) {
|
|
// .array_fixed {
|
|
styp := typ.cname
|
|
// array_fixed_char_300 => char x[300]
|
|
// [16]&&&EventListener{} => Array_fixed_main__EventListener_16_ptr3
|
|
// => typedef main__EventListener*** Array_fixed_main__EventListener_16_ptr3 [16]
|
|
mut fixed_elem_name := g.typ(typ.info.elem_type.set_nr_muls(0))
|
|
if typ.info.elem_type.is_ptr() {
|
|
fixed_elem_name += '*'.repeat(typ.info.elem_type.nr_muls())
|
|
}
|
|
len := typ.info.size
|
|
if fixed_elem_name.starts_with('C__') {
|
|
fixed_elem_name = fixed_elem_name[3..]
|
|
}
|
|
if elem_sym.info is ast.FnType {
|
|
pos := g.out.len
|
|
g.write_fn_ptr_decl(&elem_sym.info, '')
|
|
fixed_elem_name = g.out.after(pos)
|
|
g.out.go_back(fixed_elem_name.len)
|
|
mut def_str := 'typedef $fixed_elem_name;'
|
|
def_str = def_str.replace_once('(*)', '(*$styp[$len])')
|
|
g.type_definitions.writeln(def_str)
|
|
} else {
|
|
g.type_definitions.writeln('typedef $fixed_elem_name $styp [$len];')
|
|
}
|
|
}
|
|
}
|
|
else {}
|
|
}
|
|
}
|
|
}
|
|
|
|
// sort structs by dependant fields
|
|
fn (g &Gen) sort_structs(typesa []ast.TypeSymbol) []ast.TypeSymbol {
|
|
mut dep_graph := depgraph.new_dep_graph()
|
|
// types name list
|
|
mut type_names := []string{}
|
|
for typ in typesa {
|
|
type_names << typ.name
|
|
}
|
|
// loop over types
|
|
for t in typesa {
|
|
if t.kind == .interface_ {
|
|
dep_graph.add(t.name, [])
|
|
continue
|
|
}
|
|
// create list of deps
|
|
mut field_deps := []string{}
|
|
match mut t.info {
|
|
ast.ArrayFixed {
|
|
dep := g.table.get_type_symbol(t.info.elem_type).name
|
|
if dep in type_names {
|
|
field_deps << dep
|
|
}
|
|
}
|
|
ast.Struct {
|
|
for embed in t.info.embeds {
|
|
dep := g.table.get_type_symbol(embed).name
|
|
// skip if not in types list or already in deps
|
|
if dep !in type_names || dep in field_deps {
|
|
continue
|
|
}
|
|
field_deps << dep
|
|
}
|
|
for field in t.info.fields {
|
|
dep := g.table.get_type_symbol(field.typ).name
|
|
// skip if not in types list or already in deps
|
|
if dep !in type_names || dep in field_deps || field.typ.is_ptr() {
|
|
continue
|
|
}
|
|
field_deps << dep
|
|
}
|
|
}
|
|
// ast.Interface {}
|
|
else {}
|
|
}
|
|
// add type and dependant types to graph
|
|
dep_graph.add(t.name, field_deps)
|
|
}
|
|
// sort graph
|
|
dep_graph_sorted := dep_graph.resolve()
|
|
if !dep_graph_sorted.acyclic {
|
|
// this should no longer be called since it's catched in the parser
|
|
// TODO: should it be removed?
|
|
verror('cgen.sort_structs(): the following structs form a dependency cycle:\n' +
|
|
dep_graph_sorted.display_cycles() +
|
|
'\nyou can solve this by making one or both of the dependant struct fields references, eg: field &MyStruct' +
|
|
'\nif you feel this is an error, please create a new issue here: https://github.com/vlang/v/issues and tag @joe-conigliaro')
|
|
}
|
|
// sort types
|
|
mut types_sorted := []ast.TypeSymbol{}
|
|
for node in dep_graph_sorted.nodes {
|
|
types_sorted << g.table.type_symbols[g.table.type_idxs[node.name]]
|
|
}
|
|
return types_sorted
|
|
}
|
|
|
|
[inline]
|
|
fn (g &Gen) nth_stmt_pos(n int) int {
|
|
return g.stmt_path_pos[g.stmt_path_pos.len - (1 + n)]
|
|
}
|
|
|
|
fn (mut g Gen) go_before_stmt(n int) string {
|
|
stmt_pos := g.nth_stmt_pos(n)
|
|
cur_line := g.out.after(stmt_pos)
|
|
g.out.go_back(cur_line.len)
|
|
return cur_line
|
|
}
|
|
|
|
[inline]
|
|
fn (mut g Gen) go_before_ternary() string {
|
|
return g.go_before_stmt(g.inside_ternary)
|
|
}
|
|
|
|
fn (mut g Gen) insert_before_stmt(s string) {
|
|
cur_line := g.go_before_stmt(0)
|
|
g.writeln(s)
|
|
g.write(cur_line)
|
|
}
|
|
|
|
fn (mut g Gen) write_expr_to_string(expr ast.Expr) string {
|
|
pos := g.out.len
|
|
g.expr(expr)
|
|
return g.out.cut_last(g.out.len - pos)
|
|
}
|
|
|
|
// fn (mut g Gen) start_tmp() {
|
|
// }
|
|
// If user is accessing the return value eg. in assigment, pass the variable name.
|
|
// If the user is not using the optional return value. We need to pass a temp var
|
|
// to access its fields (`.ok`, `.error` etc)
|
|
// `os.cp(...)` => `Option bool tmp = os__cp(...); if (tmp.state != 0) { ... }`
|
|
// Returns the type of the last stmt
|
|
fn (mut g Gen) or_block(var_name string, or_block ast.OrExpr, return_type ast.Type) {
|
|
cvar_name := c_name(var_name)
|
|
mr_styp := g.base_type(return_type)
|
|
is_none_ok := return_type == ast.ovoid_type
|
|
g.writeln(';')
|
|
if is_none_ok {
|
|
g.writeln('if (${cvar_name}.state != 0 && ${cvar_name}.err._typ != _IError_None___index) {')
|
|
} else {
|
|
g.writeln('if (${cvar_name}.state != 0) { /*or block*/ ')
|
|
}
|
|
if or_block.kind == .block {
|
|
if g.inside_or_block {
|
|
g.writeln('\terr = ${cvar_name}.err;')
|
|
} else {
|
|
g.writeln('\tIError err = ${cvar_name}.err;')
|
|
}
|
|
g.inside_or_block = true
|
|
defer {
|
|
g.inside_or_block = false
|
|
}
|
|
stmts := or_block.stmts
|
|
if stmts.len > 0 && stmts[or_block.stmts.len - 1] is ast.ExprStmt
|
|
&& (stmts[stmts.len - 1] as ast.ExprStmt).typ != ast.void_type {
|
|
g.indent++
|
|
for i, stmt in stmts {
|
|
if i == stmts.len - 1 {
|
|
expr_stmt := stmt as ast.ExprStmt
|
|
g.stmt_path_pos << g.out.len
|
|
g.write('*($mr_styp*) ${cvar_name}.data = ')
|
|
old_inside_opt_data := g.inside_opt_data
|
|
g.inside_opt_data = true
|
|
g.expr_with_cast(expr_stmt.expr, expr_stmt.typ, return_type.clear_flag(.optional))
|
|
g.inside_opt_data = old_inside_opt_data
|
|
if g.inside_ternary == 0 {
|
|
g.writeln(';')
|
|
}
|
|
g.stmt_path_pos.delete_last()
|
|
} else {
|
|
g.stmt(stmt)
|
|
}
|
|
}
|
|
g.indent--
|
|
} else {
|
|
g.stmts(stmts)
|
|
if stmts.len > 0 && stmts[or_block.stmts.len - 1] is ast.ExprStmt {
|
|
g.writeln(';')
|
|
}
|
|
}
|
|
} else if or_block.kind == .propagate {
|
|
if g.file.mod.name == 'main' && (isnil(g.fn_decl) || g.fn_decl.is_main) {
|
|
// In main(), an `opt()?` call is sugar for `opt() or { panic(err) }`
|
|
if g.pref.is_debug {
|
|
paline, pafile, pamod, pafn := g.panic_debug_info(or_block.pos)
|
|
g.writeln('panic_debug($paline, tos3("$pafile"), tos3("$pamod"), tos3("$pafn"), *${cvar_name}.err.msg );')
|
|
} else {
|
|
g.writeln('\tpanic_optional_not_set(*${cvar_name}.err.msg);')
|
|
}
|
|
} else if !isnil(g.fn_decl) && g.fn_decl.is_test {
|
|
g.gen_failing_error_propagation_for_test_fn(or_block, cvar_name)
|
|
} else {
|
|
// In ordinary functions, `opt()?` call is sugar for:
|
|
// `opt() or { return err }`
|
|
// Since we *do* return, first we have to ensure that
|
|
// the defered statements are generated.
|
|
g.write_defer_stmts()
|
|
// Now that option types are distinct we need a cast here
|
|
if g.fn_decl.return_type == ast.void_type {
|
|
g.writeln('\treturn;')
|
|
} else {
|
|
styp := g.typ(g.fn_decl.return_type)
|
|
err_obj := g.new_tmp_var()
|
|
g.writeln('\t$styp $err_obj;')
|
|
g.writeln('\tmemcpy(&$err_obj, &$cvar_name, sizeof(Option));')
|
|
g.writeln('\treturn $err_obj;')
|
|
}
|
|
}
|
|
}
|
|
g.writeln('}')
|
|
}
|
|
|
|
// `a in [1,2,3]` => `a == 1 || a == 2 || a == 3`
|
|
fn (mut g Gen) in_optimization(left ast.Expr, right ast.ArrayInit) {
|
|
is_str := right.elem_type == ast.string_type
|
|
elem_sym := g.table.get_type_symbol(right.elem_type)
|
|
is_array := elem_sym.kind == .array
|
|
for i, array_expr in right.exprs {
|
|
if is_str {
|
|
g.write('string__eq(')
|
|
} else if is_array {
|
|
ptr_typ := g.gen_array_equality_fn(right.elem_type)
|
|
g.write('${ptr_typ}_arr_eq(')
|
|
}
|
|
g.expr(left)
|
|
if is_str || is_array {
|
|
g.write(', ')
|
|
} else {
|
|
g.write(' == ')
|
|
}
|
|
g.expr(array_expr)
|
|
if is_str || is_array {
|
|
g.write(')')
|
|
}
|
|
if i < right.exprs.len - 1 {
|
|
g.write(' || ')
|
|
}
|
|
}
|
|
}
|
|
|
|
[inline]
|
|
fn c_name(name_ string) string {
|
|
name := util.no_dots(name_)
|
|
if name in c.c_reserved_map {
|
|
return 'v_$name'
|
|
}
|
|
return name
|
|
}
|
|
|
|
fn (mut g Gen) type_default(typ_ ast.Type) string {
|
|
typ := g.unwrap_generic(typ_)
|
|
if typ.has_flag(.optional) {
|
|
return '{0}'
|
|
}
|
|
// Always set pointers to 0
|
|
if typ.is_ptr() && !typ.has_flag(.shared_f) {
|
|
return '0'
|
|
}
|
|
if typ.idx() < ast.string_type_idx {
|
|
// Default values for other types are not needed because of mandatory initialization
|
|
return '0'
|
|
}
|
|
sym := g.table.get_type_symbol(typ)
|
|
match sym.kind {
|
|
.string {
|
|
return '(string){.str=(byteptr)"", .is_lit=1}'
|
|
}
|
|
.interface_, .sum_type, .array_fixed, .multi_return {
|
|
return '{0}'
|
|
}
|
|
.alias {
|
|
return g.type_default((sym.info as ast.Alias).parent_type)
|
|
}
|
|
.chan {
|
|
elemtypstr := g.typ(sym.chan_info().elem_type)
|
|
return 'sync__new_channel_st(0, sizeof($elemtypstr))'
|
|
}
|
|
.array {
|
|
elem_typ := sym.array_info().elem_type
|
|
elem_sym := g.typ(elem_typ)
|
|
mut elem_type_str := util.no_dots(elem_sym)
|
|
if elem_type_str.starts_with('C__') {
|
|
elem_type_str = elem_type_str[3..]
|
|
}
|
|
noscan := g.check_noscan(elem_typ)
|
|
init_str := '__new_array${noscan}(0, 0, sizeof($elem_type_str))'
|
|
if typ.has_flag(.shared_f) {
|
|
atyp := '__shared__Array_${g.table.get_type_symbol(elem_typ).cname}'
|
|
return '($atyp*)__dup_shared_array(&($atyp){.mtx = {0}, .val =$init_str}, sizeof($atyp))'
|
|
} else {
|
|
return init_str
|
|
}
|
|
}
|
|
.map {
|
|
info := sym.map_info()
|
|
key_typ := g.table.get_type_symbol(info.key_type)
|
|
hash_fn, key_eq_fn, clone_fn, free_fn := g.map_fn_ptrs(key_typ)
|
|
noscan_key := g.check_noscan(info.key_type)
|
|
noscan_value := g.check_noscan(info.value_type)
|
|
mut noscan := if noscan_key.len != 0 || noscan_value.len != 0 { '_noscan' } else { '' }
|
|
if noscan.len != 0 {
|
|
if noscan_key.len != 0 {
|
|
noscan += '_key'
|
|
}
|
|
if noscan_value.len != 0 {
|
|
noscan += '_value'
|
|
}
|
|
}
|
|
init_str := 'new_map${noscan}(sizeof(${g.typ(info.key_type)}), sizeof(${g.typ(info.value_type)}), $hash_fn, $key_eq_fn, $clone_fn, $free_fn)'
|
|
if typ.has_flag(.shared_f) {
|
|
mtyp := '__shared__Map_${key_typ.cname}_${g.table.get_type_symbol(info.value_type).cname}'
|
|
return '($mtyp*)__dup_shared_map(&($mtyp){.mtx = {0}, .val =$init_str}, sizeof($mtyp))'
|
|
} else {
|
|
return init_str
|
|
}
|
|
}
|
|
.struct_ {
|
|
mut has_none_zero := false
|
|
mut init_str := '{'
|
|
info := sym.info as ast.Struct
|
|
typ_is_shared_f := typ.has_flag(.shared_f)
|
|
if sym.language == .v && !typ_is_shared_f {
|
|
for field in info.fields {
|
|
field_sym := g.table.get_type_symbol(field.typ)
|
|
if field.has_default_expr
|
|
|| field_sym.kind in [.array, .map, .string, .ustring, .bool, .alias, .size_t, .i8, .i16, .int, .i64, .byte, .u16, .u32, .u64, .char, .voidptr, .byteptr, .charptr, .struct_] {
|
|
field_name := c_name(field.name)
|
|
if field.has_default_expr {
|
|
expr_str := g.expr_string(field.default_expr)
|
|
init_str += '.$field_name = $expr_str,'
|
|
} else {
|
|
init_str += '.$field_name = ${g.type_default(field.typ)},'
|
|
}
|
|
has_none_zero = true
|
|
}
|
|
}
|
|
}
|
|
if has_none_zero {
|
|
init_str += '}'
|
|
type_name := g.typ(typ)
|
|
init_str = '($type_name)' + init_str
|
|
} else {
|
|
init_str += '0}'
|
|
}
|
|
if typ.has_flag(.shared_f) {
|
|
styp := '__shared__${g.table.get_type_symbol(typ).cname}'
|
|
return '($styp*)__dup${styp}(&($styp){.mtx = {0}, .val =$init_str}, sizeof($styp))'
|
|
} else {
|
|
return init_str
|
|
}
|
|
}
|
|
else {
|
|
return '0'
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (g &Gen) get_all_test_function_names() []string {
|
|
mut tfuncs := []string{}
|
|
mut tsuite_begin := ''
|
|
mut tsuite_end := ''
|
|
for _, f in g.table.fns {
|
|
if f.name.ends_with('.testsuite_begin') {
|
|
tsuite_begin = f.name
|
|
continue
|
|
}
|
|
if f.name.contains('.test_') {
|
|
tfuncs << f.name
|
|
continue
|
|
}
|
|
if f.name.ends_with('.testsuite_end') {
|
|
tsuite_end = f.name
|
|
continue
|
|
}
|
|
}
|
|
mut all_tfuncs := []string{}
|
|
if tsuite_begin.len > 0 {
|
|
all_tfuncs << tsuite_begin
|
|
}
|
|
all_tfuncs << tfuncs
|
|
if tsuite_end.len > 0 {
|
|
all_tfuncs << tsuite_end
|
|
}
|
|
return all_tfuncs
|
|
}
|
|
|
|
fn (g &Gen) is_importing_os() bool {
|
|
return 'os' in g.table.imports
|
|
}
|
|
|
|
fn (mut g Gen) go_expr(node ast.GoExpr) {
|
|
line := g.go_before_stmt(0)
|
|
mut handle := ''
|
|
tmp := g.new_tmp_var()
|
|
mut expr := node.call_expr
|
|
mut name := expr.name // util.no_dots(expr.name)
|
|
// TODO: fn call is duplicated. merge with fn_call().
|
|
for i, concrete_type in expr.concrete_types {
|
|
if concrete_type != ast.void_type && concrete_type != 0 {
|
|
// Using _T_ to differentiate between get<string> and get_string
|
|
// `foo<int>()` => `foo_T_int()`
|
|
if i == 0 {
|
|
name += '_T'
|
|
}
|
|
name += '_' + g.typ(concrete_type)
|
|
}
|
|
}
|
|
if expr.is_method {
|
|
receiver_sym := g.table.get_type_symbol(expr.receiver_type)
|
|
name = receiver_sym.name + '_' + name
|
|
} else if mut expr.left is ast.AnonFn {
|
|
g.gen_anon_fn_decl(mut expr.left)
|
|
fsym := g.table.get_type_symbol(expr.left.typ)
|
|
name = fsym.name
|
|
}
|
|
name = util.no_dots(name)
|
|
if g.pref.obfuscate && g.cur_mod.name == 'main' && name.starts_with('main__') {
|
|
mut key := expr.name
|
|
if expr.is_method {
|
|
sym := g.table.get_type_symbol(expr.receiver_type)
|
|
key = sym.name + '.' + expr.name
|
|
}
|
|
g.write('/* obf go: $key */')
|
|
name = g.obf_table[key] or {
|
|
panic('cgen: obf name "$key" not found, this should never happen')
|
|
}
|
|
}
|
|
g.writeln('// go')
|
|
wrapper_struct_name := 'thread_arg_' + name
|
|
wrapper_fn_name := name + '_thread_wrapper'
|
|
arg_tmp_var := 'arg_' + tmp
|
|
g.writeln('$wrapper_struct_name *$arg_tmp_var = malloc(sizeof(thread_arg_$name));')
|
|
if expr.is_method {
|
|
g.write('$arg_tmp_var->arg0 = ')
|
|
// TODO is this needed?
|
|
/*
|
|
if false && !expr.return_type.is_ptr() {
|
|
g.write('&')
|
|
}
|
|
*/
|
|
g.expr(expr.left)
|
|
g.writeln(';')
|
|
}
|
|
for i, arg in expr.args {
|
|
g.write('$arg_tmp_var->arg${i + 1} = ')
|
|
g.expr(arg.expr)
|
|
g.writeln(';')
|
|
}
|
|
s_ret_typ := g.typ(node.call_expr.return_type)
|
|
if g.pref.os == .windows && node.call_expr.return_type != ast.void_type {
|
|
g.writeln('$arg_tmp_var->ret_ptr = malloc(sizeof($s_ret_typ));')
|
|
}
|
|
is_opt := node.call_expr.return_type.has_flag(.optional)
|
|
mut gohandle_name := ''
|
|
if node.call_expr.return_type == ast.void_type {
|
|
gohandle_name = if is_opt { '__v_thread_Option_void' } else { '__v_thread' }
|
|
} else {
|
|
opt := if is_opt { 'Option_' } else { '' }
|
|
gohandle_name = '__v_thread_$opt${g.table.get_type_symbol(g.unwrap_generic(node.call_expr.return_type)).cname}'
|
|
}
|
|
if g.pref.os == .windows {
|
|
simple_handle := if node.is_expr && node.call_expr.return_type != ast.void_type {
|
|
'thread_handle_$tmp'
|
|
} else {
|
|
'thread_$tmp'
|
|
}
|
|
g.writeln('HANDLE $simple_handle = CreateThread(0,0, (LPTHREAD_START_ROUTINE)$wrapper_fn_name, $arg_tmp_var, 0,0);')
|
|
if node.is_expr && node.call_expr.return_type != ast.void_type {
|
|
g.writeln('$gohandle_name thread_$tmp = {')
|
|
g.writeln('\t.ret_ptr = $arg_tmp_var->ret_ptr,')
|
|
g.writeln('\t.handle = thread_handle_$tmp')
|
|
g.writeln('};')
|
|
}
|
|
if !node.is_expr {
|
|
g.writeln('CloseHandle(thread_$tmp);')
|
|
}
|
|
} else {
|
|
g.writeln('pthread_t thread_$tmp;')
|
|
g.writeln('pthread_create(&thread_$tmp, NULL, (void*)$wrapper_fn_name, $arg_tmp_var);')
|
|
if !node.is_expr {
|
|
g.writeln('pthread_detach(thread_$tmp);')
|
|
}
|
|
}
|
|
g.writeln('// endgo\n')
|
|
if node.is_expr {
|
|
handle = 'thread_$tmp'
|
|
// create wait handler for this return type if none exists
|
|
waiter_fn_name := gohandle_name + '_wait'
|
|
if waiter_fn_name !in g.waiter_fns {
|
|
g.gowrappers.writeln('\n$s_ret_typ ${waiter_fn_name}($gohandle_name thread) {')
|
|
mut c_ret_ptr_ptr := 'NULL'
|
|
if node.call_expr.return_type != ast.void_type {
|
|
g.gowrappers.writeln('\t$s_ret_typ* ret_ptr;')
|
|
c_ret_ptr_ptr = '&ret_ptr'
|
|
}
|
|
if g.pref.os == .windows {
|
|
if node.call_expr.return_type == ast.void_type {
|
|
g.gowrappers.writeln('\tu32 stat = WaitForSingleObject(thread, INFINITE);')
|
|
} else {
|
|
g.gowrappers.writeln('\tu32 stat = WaitForSingleObject(thread.handle, INFINITE);')
|
|
g.gowrappers.writeln('\tret_ptr = thread.ret_ptr;')
|
|
}
|
|
} else {
|
|
g.gowrappers.writeln('\tint stat = pthread_join(thread, (void **)$c_ret_ptr_ptr);')
|
|
}
|
|
g.gowrappers.writeln('\tif (stat != 0) { v_panic(_SLIT("unable to join thread")); }')
|
|
if g.pref.os == .windows {
|
|
if node.call_expr.return_type == ast.void_type {
|
|
g.gowrappers.writeln('\tCloseHandle(thread);')
|
|
} else {
|
|
g.gowrappers.writeln('\tCloseHandle(thread.handle);')
|
|
}
|
|
}
|
|
if node.call_expr.return_type != ast.void_type {
|
|
g.gowrappers.writeln('\t$s_ret_typ ret = *ret_ptr;')
|
|
g.gowrappers.writeln('\tfree(ret_ptr);')
|
|
g.gowrappers.writeln('\treturn ret;')
|
|
} else {
|
|
g.gowrappers.writeln('\treturn;')
|
|
}
|
|
g.gowrappers.writeln('}')
|
|
g.waiter_fns << waiter_fn_name
|
|
}
|
|
}
|
|
// Register the wrapper type and function
|
|
if name !in g.threaded_fns {
|
|
g.type_definitions.writeln('\ntypedef struct $wrapper_struct_name {')
|
|
if expr.is_method {
|
|
styp := g.typ(expr.receiver_type)
|
|
g.type_definitions.writeln('\t$styp arg0;')
|
|
}
|
|
need_return_ptr := g.pref.os == .windows && node.call_expr.return_type != ast.void_type
|
|
if expr.args.len == 0 && !need_return_ptr {
|
|
g.type_definitions.writeln('EMPTY_STRUCT_DECLARATION;')
|
|
} else {
|
|
for i, arg in expr.args {
|
|
styp := g.typ(arg.typ)
|
|
g.type_definitions.writeln('\t$styp arg${i + 1};')
|
|
}
|
|
}
|
|
if need_return_ptr {
|
|
g.type_definitions.writeln('\tvoid* ret_ptr;')
|
|
}
|
|
g.type_definitions.writeln('} $wrapper_struct_name;')
|
|
thread_ret_type := if g.pref.os == .windows { 'u32' } else { 'void*' }
|
|
g.type_definitions.writeln('$thread_ret_type ${wrapper_fn_name}($wrapper_struct_name *arg);')
|
|
g.gowrappers.writeln('$thread_ret_type ${wrapper_fn_name}($wrapper_struct_name *arg) {')
|
|
if node.call_expr.return_type != ast.void_type {
|
|
if g.pref.os == .windows {
|
|
g.gowrappers.write_string('\t*(($s_ret_typ*)(arg->ret_ptr)) = ')
|
|
} else {
|
|
g.gowrappers.writeln('\t$s_ret_typ* ret_ptr = malloc(sizeof($s_ret_typ));')
|
|
g.gowrappers.write_string('\t*ret_ptr = ')
|
|
}
|
|
} else {
|
|
g.gowrappers.write_string('\t')
|
|
}
|
|
g.gowrappers.write_string('${name}(')
|
|
if expr.is_method {
|
|
g.gowrappers.write_string('arg->arg0')
|
|
if expr.args.len > 0 {
|
|
g.gowrappers.write_string(', ')
|
|
}
|
|
}
|
|
for i in 0 .. expr.args.len {
|
|
g.gowrappers.write_string('arg->arg${i + 1}')
|
|
if i < expr.args.len - 1 {
|
|
g.gowrappers.write_string(', ')
|
|
}
|
|
}
|
|
g.gowrappers.writeln(');')
|
|
g.gowrappers.writeln('\tfree(arg);')
|
|
if g.pref.os != .windows && node.call_expr.return_type != ast.void_type {
|
|
g.gowrappers.writeln('\treturn ret_ptr;')
|
|
} else {
|
|
g.gowrappers.writeln('\treturn 0;')
|
|
}
|
|
g.gowrappers.writeln('}')
|
|
g.threaded_fns << name
|
|
}
|
|
if node.is_expr {
|
|
g.empty_line = false
|
|
g.write(line)
|
|
g.write(handle)
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) as_cast(node ast.AsCast) {
|
|
// Make sure the sum type can be cast to this type (the types
|
|
// are the same), otherwise panic.
|
|
// g.insert_before('
|
|
styp := g.typ(node.typ)
|
|
sym := g.table.get_type_symbol(node.typ)
|
|
expr_type_sym := g.table.get_type_symbol(node.expr_type)
|
|
if expr_type_sym.info is ast.SumType {
|
|
dot := if node.expr_type.is_ptr() { '->' } else { '.' }
|
|
g.write('/* as */ *($styp*)__as_cast(')
|
|
g.write('(')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
g.write(dot)
|
|
g.write('_$sym.cname,')
|
|
g.write('(')
|
|
g.expr(node.expr)
|
|
g.write(')')
|
|
g.write(dot)
|
|
// g.write('typ, /*expected:*/$node.typ)')
|
|
sidx := g.type_sidx(node.typ)
|
|
expected_sym := g.table.get_type_symbol(node.typ)
|
|
g.write('_typ, $sidx) /*expected idx: $sidx, name: $expected_sym.name */ ')
|
|
|
|
// fill as cast name table
|
|
for variant in expr_type_sym.info.variants {
|
|
idx := variant.str()
|
|
if idx in g.as_cast_type_names {
|
|
continue
|
|
}
|
|
variant_sym := g.table.get_type_symbol(variant)
|
|
g.as_cast_type_names[idx] = variant_sym.name
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (g Gen) as_cast_name_table() string {
|
|
if g.as_cast_type_names.len == 0 {
|
|
return 'new_array_from_c_array(1, 1, sizeof(VCastTypeIndexName), _MOV((VCastTypeIndexName[1]){(VCastTypeIndexName){.tindex = 0,.tname = _SLIT("unknown")}}));\n'
|
|
}
|
|
mut name_ast := strings.new_builder(1024)
|
|
casts_len := g.as_cast_type_names.len + 1
|
|
name_ast.writeln('new_array_from_c_array($casts_len, $casts_len, sizeof(VCastTypeIndexName), _MOV((VCastTypeIndexName[$casts_len]){')
|
|
name_ast.writeln('\t\t (VCastTypeIndexName){.tindex = 0, .tname = _SLIT("unknown")}')
|
|
for key, value in g.as_cast_type_names {
|
|
name_ast.writeln('\t\t, (VCastTypeIndexName){.tindex = $key, .tname = _SLIT("$value")}')
|
|
}
|
|
name_ast.writeln('\t}));\n')
|
|
return name_ast.str()
|
|
}
|
|
|
|
fn (mut g Gen) is_expr(node ast.InfixExpr) {
|
|
eq := if node.op == .key_is { '==' } else { '!=' }
|
|
g.write('(')
|
|
g.expr(node.left)
|
|
g.write(')')
|
|
if node.left_type.is_ptr() {
|
|
g.write('->')
|
|
} else {
|
|
g.write('.')
|
|
}
|
|
sym := g.table.get_type_symbol(node.left_type)
|
|
if sym.kind == .interface_ {
|
|
g.write('_typ $eq ')
|
|
// `_Animal_Dog_index`
|
|
sub_type := match mut node.right {
|
|
ast.TypeNode { node.right.typ }
|
|
ast.None { g.table.type_idxs['None__'] }
|
|
else { ast.Type(0) }
|
|
}
|
|
sub_sym := g.table.get_type_symbol(sub_type)
|
|
g.write('_${c_name(sym.name)}_${c_name(sub_sym.name)}_index')
|
|
return
|
|
} else if sym.kind == .sum_type {
|
|
g.write('_typ $eq ')
|
|
}
|
|
g.expr(node.right)
|
|
}
|
|
|
|
// Generates interface table and interface indexes
|
|
fn (mut g Gen) interface_table() string {
|
|
mut sb := strings.new_builder(100)
|
|
for ityp in g.table.type_symbols {
|
|
if ityp.kind != .interface_ {
|
|
continue
|
|
}
|
|
inter_info := ityp.info as ast.Interface
|
|
// interface_name is for example Speaker
|
|
interface_name := ityp.cname
|
|
// generate a struct that references interface methods
|
|
methods_struct_name := 'struct _${interface_name}_interface_methods'
|
|
mut methods_struct_def := strings.new_builder(100)
|
|
methods_struct_def.writeln('$methods_struct_name {')
|
|
mut methodidx := map[string]int{}
|
|
for k, method in inter_info.methods {
|
|
methodidx[method.name] = k
|
|
ret_styp := g.typ(method.return_type)
|
|
methods_struct_def.write_string('\t$ret_styp (*_method_${c_name(method.name)})(void* _')
|
|
// the first param is the receiver, it's handled by `void*` above
|
|
for i in 1 .. method.params.len {
|
|
arg := method.params[i]
|
|
methods_struct_def.write_string(', ${g.typ(arg.typ)} $arg.name')
|
|
}
|
|
// TODO g.fn_args(method.args[1..], method.is_variadic)
|
|
methods_struct_def.writeln(');')
|
|
}
|
|
methods_struct_def.writeln('};')
|
|
// generate an array of the interface methods for the structs using the interface
|
|
// as well as case functions from the struct to the interface
|
|
mut methods_struct := strings.new_builder(100)
|
|
//
|
|
iname_table_length := inter_info.types.len
|
|
if iname_table_length == 0 {
|
|
// msvc can not process `static struct x[0] = {};`
|
|
methods_struct.writeln('$methods_struct_name ${interface_name}_name_table[1];')
|
|
} else {
|
|
if g.pref.build_mode != .build_module {
|
|
methods_struct.writeln('$methods_struct_name ${interface_name}_name_table[$iname_table_length] = {')
|
|
} else {
|
|
methods_struct.writeln('$methods_struct_name ${interface_name}_name_table[$iname_table_length];')
|
|
}
|
|
}
|
|
mut cast_functions := strings.new_builder(100)
|
|
mut methods_wrapper := strings.new_builder(100)
|
|
methods_wrapper.writeln('// Methods wrapper for interface "$interface_name"')
|
|
mut already_generated_mwrappers := map[string]int{}
|
|
iinidx_minimum_base := 1000 // NB: NOT 0, to avoid map entries set to 0 later, so `if already_generated_mwrappers[name] > 0 {` works.
|
|
mut current_iinidx := iinidx_minimum_base
|
|
for st in inter_info.types {
|
|
st_sym := g.table.get_type_symbol(st)
|
|
// cctype is the Cleaned Concrete Type name, *without ptr*,
|
|
// i.e. cctype is always just Cat, not Cat_ptr:
|
|
cctype := g.cc_type(st, true)
|
|
$if debug_interface_table ? {
|
|
eprintln(
|
|
'>> interface name: $ityp.name | concrete type: $st.debug() | st symname: ' +
|
|
st_sym.name)
|
|
}
|
|
// Speaker_Cat_index = 0
|
|
interface_index_name := '_${interface_name}_${cctype}_index'
|
|
if already_generated_mwrappers[interface_index_name] > 0 {
|
|
continue
|
|
}
|
|
already_generated_mwrappers[interface_index_name] = current_iinidx
|
|
current_iinidx++
|
|
if ityp.name != 'vweb.DbInterface' { // TODO remove this
|
|
// eprintln('>>> current_iinidx: ${current_iinidx-iinidx_minimum_base} | interface_index_name: $interface_index_name')
|
|
sb.writeln('static $interface_name I_${cctype}_to_Interface_${interface_name}($cctype* x);')
|
|
mut cast_struct := strings.new_builder(100)
|
|
cast_struct.writeln('($interface_name) {')
|
|
cast_struct.writeln('\t\t._$cctype = x,')
|
|
cast_struct.writeln('\t\t._typ = $interface_index_name,')
|
|
for field in inter_info.fields {
|
|
cname := c_name(field.name)
|
|
field_styp := g.typ(field.typ)
|
|
if _ := st_sym.find_field(field.name) {
|
|
cast_struct.writeln('\t\t.$cname = ($field_styp*)((char*)x + __offsetof_ptr(x, $cctype, $cname)),')
|
|
} else {
|
|
// the field is embedded in another struct
|
|
cast_struct.write_string('\t\t.$cname = ($field_styp*)((char*)x')
|
|
for embed_type in st_sym.struct_info().embeds {
|
|
embed_sym := g.table.get_type_symbol(embed_type)
|
|
if _ := embed_sym.find_field(field.name) {
|
|
cast_struct.write_string(' + __offsetof_ptr(x, $cctype, $embed_sym.embed_name()) + __offsetof_ptr(x, $embed_sym.cname, $cname)')
|
|
break
|
|
}
|
|
}
|
|
cast_struct.writeln('),')
|
|
}
|
|
}
|
|
cast_struct.write_string('\t}')
|
|
cast_struct_str := cast_struct.str()
|
|
|
|
cast_functions.writeln('
|
|
// Casting functions for converting "$cctype" to interface "$interface_name"
|
|
static inline $interface_name I_${cctype}_to_Interface_${interface_name}($cctype* x) {
|
|
return $cast_struct_str;
|
|
}')
|
|
}
|
|
|
|
if g.pref.build_mode != .build_module {
|
|
methods_struct.writeln('\t{')
|
|
}
|
|
for _, method in st_sym.methods {
|
|
if method.name !in methodidx {
|
|
// a method that is not part of the interface should be just skipped
|
|
continue
|
|
}
|
|
// .speak = Cat_speak
|
|
mut method_call := '${cctype}_$method.name'
|
|
if !method.params[0].typ.is_ptr() {
|
|
// inline void Cat_speak_Interface_Animal_method_wrapper(Cat c) { return Cat_speak(*c); }
|
|
iwpostfix := '_Interface_${interface_name}_method_wrapper'
|
|
methods_wrapper.write_string('static inline ${g.typ(method.return_type)} $method_call${iwpostfix}(')
|
|
//
|
|
params_start_pos := g.out.len
|
|
mut params := method.params.clone()
|
|
// hack to mutate typ
|
|
params[0] = {
|
|
...params[0]
|
|
typ: params[0].typ.set_nr_muls(1)
|
|
}
|
|
fargs, _ := g.fn_args(params, false) // second argument is ignored anyway
|
|
methods_wrapper.write_string(g.out.cut_last(g.out.len - params_start_pos))
|
|
methods_wrapper.writeln(') {')
|
|
methods_wrapper.write_string('\t')
|
|
if method.return_type != ast.void_type {
|
|
methods_wrapper.write_string('return ')
|
|
}
|
|
methods_wrapper.writeln('${method_call}(*${fargs.join(', ')});')
|
|
methods_wrapper.writeln('}')
|
|
// .speak = Cat_speak_Interface_Animal_method_wrapper
|
|
method_call += iwpostfix
|
|
}
|
|
if g.pref.build_mode != .build_module {
|
|
methods_struct.writeln('\t\t._method_${c_name(method.name)} = (void*) $method_call,')
|
|
}
|
|
}
|
|
if g.pref.build_mode != .build_module {
|
|
methods_struct.writeln('\t},')
|
|
}
|
|
iin_idx := already_generated_mwrappers[interface_index_name] - iinidx_minimum_base
|
|
if g.pref.build_mode != .build_module {
|
|
sb.writeln('int $interface_index_name = $iin_idx;')
|
|
} else {
|
|
sb.writeln('int $interface_index_name;')
|
|
}
|
|
}
|
|
sb.writeln('// ^^^ number of types for interface $interface_name: ${current_iinidx - iinidx_minimum_base}')
|
|
if iname_table_length == 0 {
|
|
methods_struct.writeln('')
|
|
} else {
|
|
if g.pref.build_mode != .build_module {
|
|
methods_struct.writeln('};')
|
|
}
|
|
}
|
|
// add line return after interface index declarations
|
|
sb.writeln('')
|
|
if inter_info.methods.len > 0 {
|
|
sb.writeln(methods_wrapper.str())
|
|
sb.writeln(methods_struct_def.str())
|
|
sb.writeln(methods_struct.str())
|
|
}
|
|
sb.writeln(cast_functions.str())
|
|
}
|
|
return sb.str()
|
|
}
|
|
|
|
fn (mut g Gen) panic_debug_info(pos token.Position) (int, string, string, string) {
|
|
paline := pos.line_nr + 1
|
|
if isnil(g.fn_decl) {
|
|
return paline, '', 'main', 'C._vinit'
|
|
}
|
|
pafile := g.fn_decl.file.replace('\\', '/')
|
|
pafn := g.fn_decl.name.after('.')
|
|
pamod := g.fn_decl.modname()
|
|
return paline, pafile, pamod, pafn
|
|
}
|
|
|
|
pub fn get_guarded_include_text(iname string, imessage string) string {
|
|
res := '
|
|
|#if defined(__has_include)
|
|
|
|
|
|#if __has_include($iname)
|
|
|#include $iname
|
|
|#else
|
|
|#error VERROR_MESSAGE $imessage
|
|
|#endif
|
|
|
|
|
|#else
|
|
|#include $iname
|
|
|#endif
|
|
'.strip_margin()
|
|
return res
|
|
}
|
|
|
|
fn (mut g Gen) trace(fbase string, message string) {
|
|
if g.file.path_base == fbase {
|
|
println('> g.trace | ${fbase:-10s} | $message')
|
|
}
|
|
}
|
|
|
|
pub fn (mut g Gen) get_array_depth(el_typ ast.Type) int {
|
|
typ := g.unwrap_generic(el_typ)
|
|
sym := g.table.get_final_type_symbol(typ)
|
|
if sym.kind == .array {
|
|
info := sym.info as ast.Array
|
|
return 1 + g.get_array_depth(info.elem_type)
|
|
} else {
|
|
return 0
|
|
}
|
|
}
|
|
|
|
// returns true if `t` includes any pointer(s) - during garbage collection heap regions
|
|
// that contain no pointers do not have to be scanned
|
|
pub fn (mut g Gen) contains_ptr(el_typ ast.Type) bool {
|
|
if el_typ.is_ptr() || el_typ.is_pointer() {
|
|
return true
|
|
}
|
|
typ := g.unwrap_generic(el_typ)
|
|
if typ.is_ptr() {
|
|
return true
|
|
}
|
|
sym := g.table.get_final_type_symbol(typ)
|
|
if sym.language != .v {
|
|
return true
|
|
}
|
|
match sym.kind {
|
|
.i8, .i16, .int, .i64, .byte, .u16, .u32, .u64, .f32, .f64, .char, .size_t, .rune, .bool,
|
|
.enum_ {
|
|
return false
|
|
}
|
|
.array_fixed {
|
|
info := sym.info as ast.ArrayFixed
|
|
return g.contains_ptr(info.elem_type)
|
|
}
|
|
.struct_ {
|
|
info := sym.info as ast.Struct
|
|
for embed in info.embeds {
|
|
if g.contains_ptr(embed) {
|
|
return true
|
|
}
|
|
}
|
|
for field in info.fields {
|
|
if g.contains_ptr(field.typ) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
.aggregate {
|
|
info := sym.info as ast.Aggregate
|
|
for atyp in info.types {
|
|
if g.contains_ptr(atyp) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
.multi_return {
|
|
info := sym.info as ast.MultiReturn
|
|
for mrtyp in info.types {
|
|
if g.contains_ptr(mrtyp) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
else {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
|
|
fn (mut g Gen) check_noscan(elem_typ ast.Type) string {
|
|
if g.pref.gc_mode in [.boehm_full_opt, .boehm_incr_opt] {
|
|
if !g.contains_ptr(elem_typ) {
|
|
return '_noscan'
|
|
}
|
|
}
|
|
return ''
|
|
}
|