vfmt fixes
Alexander Medvednikov
parent
7bbaf432e6
commit
c35adbea91
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@ -5,6 +5,7 @@
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module main
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import os
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import strings
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struct CGen {
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out os.File
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@ -20,6 +21,7 @@ struct CGen {
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so_fns []string
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consts_init []string
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lines []string
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//buf strings.Builder
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is_user bool
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mut:
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run Pass
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@ -37,11 +39,11 @@ fn new_cgen(out_name_c string) *CGen {
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out := os.create(path) or {
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println('failed to create $path')
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return &CGen{}
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}
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}
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gen := &CGen {
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out_path: path
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out: out
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//buf: strings.new_builder(10000)
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lines: _make(0, 1000, sizeof(string))
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}
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return gen
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@ -144,7 +146,8 @@ fn (g mut CGen) set_placeholder2(pos int, val string) {
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}
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fn (g mut CGen) insert_before(val string) {
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g.lines.insert(g.lines.len - 1, val)
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prev := g.lines[g.lines.len - 1]
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g.lines[g.lines.len - 1] = '$prev \n $val \n'
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}
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fn (g mut CGen) register_thread_fn(wrapper_name, wrapper_text, struct_text string) {
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@ -44,11 +44,14 @@ enum OS {
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}
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enum Pass {
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// A very short pass that only looks at imports in the beginning of each file
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// A very short pass that only looks at imports in the beginning of
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// each file
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imports
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// First pass, only parses and saves declarations (fn signatures, consts, types).
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// First pass, only parses and saves declarations (fn signatures,
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// consts, types).
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// Skips function bodies.
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// We need this because in V things can be used before they are declared.
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// We need this because in V things can be used before they are
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// declared.
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decl
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// Second pass, parses function bodies and generates C or machine code.
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main
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@ -622,6 +625,7 @@ mut args := ''
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if v.pref.build_mode != .build && (v.os == .linux || v.os == .freebsd || v.os == .openbsd ||
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v.os == .netbsd || v.os == .dragonfly) {
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a << '-lm -lpthread '
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// -ldl is a Linux only thing. BSDs have it in libc.
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if v.os == .linux {
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a << ' -ldl '
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}
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@ -104,6 +104,7 @@ fn (c mut V) new_parser(path string, run Pass) Parser {
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fn (p mut Parser) next() {
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p.prev_tok2 = p.prev_tok
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p.prev_tok = p.tok
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p.scanner.prev_tok = p.tok
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res := p.scanner.scan()
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p.tok = res.tok
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p.lit = res.lit
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@ -144,7 +145,7 @@ fn (p mut Parser) parse() {
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p.mod = fq_mod.replace('.', '_dot_')
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if p.run == .imports {
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for p.tok == .key_import && p.peek() != .key_const {
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p.import_statement()
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p.imports()
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}
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if p.table.imports.contains('builtin') {
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p.error('module `builtin` cannot be imported')
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@ -160,7 +161,10 @@ fn (p mut Parser) parse() {
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}
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else {
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// TODO remove imported consts from the language
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p.import_statement()
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p.imports()
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if p.tok != .key_import {
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p.fgenln('')
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}
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}
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case Token.key_enum:
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p.next()
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@ -285,7 +289,7 @@ fn (p mut Parser) parse() {
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}
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}
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fn (p mut Parser) import_statement() {
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fn (p mut Parser) imports() {
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p.check(.key_import)
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// `import ()`
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if p.tok == .lpar {
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@ -482,7 +486,7 @@ fn (p mut Parser) struct_decl() {
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else {
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// type alias is generated later
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if !is_c {
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kind := if is_union{'union'} else { 'struct'}
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kind := if is_union {'union'} else {'struct'}
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p.gen_typedef('typedef $kind $name $name;')
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p.gen_type('$kind $name {')
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}
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@ -510,9 +514,7 @@ fn (p mut Parser) struct_decl() {
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}
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}
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// Struct `C.Foo` declaration, no body
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// println('EEEE $is_c $is_struct')
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if is_c && is_struct && p.tok != .lcbr {
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// println('skipping struct header $name')
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p.table.register_type2(typ)
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return
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}
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@ -522,7 +524,15 @@ fn (p mut Parser) struct_decl() {
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mut is_pub := false
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mut is_mut := false
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mut names := []string// to avoid dup names TODO alloc perf
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// mut is_mut_mut := false
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/*
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mut fmt_max_len := 0
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for field in typ.fields {
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if field.name.len > max_len {
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fmt_max_len = field.name.len
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}
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}
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println('fmt max len = $max_len nrfields=$typ.fields.len pass=$p.run')
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*/
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for p.tok != .rcbr {
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if p.tok == .key_pub {
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if is_pub {
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@ -592,6 +602,7 @@ fn (p mut Parser) struct_decl() {
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}
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if !is_ph && p.first_run() {
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p.table.register_type2(typ)
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//println('registering 1 nrfields=$typ.fields.len')
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}
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p.check(.rcbr)
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if !is_c {
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@ -619,8 +630,8 @@ fn (p mut Parser) enum_decl(_enum_name string) {
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for p.tok == .name {
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field := p.check_name()
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fields << field
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name := '${p.mod}__${enum_name}_$field'
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p.fgenln('')
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name := '${p.mod}__${enum_name}_$field'
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if p.run == .main {
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p.cgen.consts << '#define $name $val'
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}
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@ -655,7 +666,7 @@ fn (p mut Parser) check_name() string {
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fn (p mut Parser) check_string() string {
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s := p.lit
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p.check(.strtoken)
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p.check(.str)
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return s
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}
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@ -663,7 +674,7 @@ fn (p &Parser) strtok() string {
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if p.tok == .name {
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return p.lit
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}
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if p.tok == .strtoken {
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if p.tok == .str {
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return '"$p.lit"'
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}
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res := p.tok.str()
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@ -701,6 +712,11 @@ fn (p mut Parser) check(expected Token) {
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p.fmt_inc()
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}
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p.next()
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if p.scanner.line_comment != '' {
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//p.fgenln('// ! "$p.scanner.line_comment"')
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//p.scanner.line_comment = ''
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}
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}
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fn (p mut Parser) error(s string) {
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@ -919,7 +935,7 @@ fn (p &Parser) print_tok() {
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println(p.lit)
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return
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}
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if p.tok == .strtoken {
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if p.tok == .str {
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println('"$p.lit"')
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return
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}
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@ -1585,6 +1601,7 @@ fn (p mut Parser) dot(str_typ string, method_ph int) string {
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if p.tok == .key_type {
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field_name = 'type'
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}
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p.fgen(field_name)
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p.log('dot() field_name=$field_name typ=$str_typ')
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//if p.fileis('main.v') {
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//println('dot() field_name=$field_name typ=$str_typ prev_tok=${prev_tok.str()}')
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@ -2120,7 +2137,7 @@ fn (p mut Parser) factor() string {
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p.char_expr()
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typ = 'byte'
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return typ
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case Token.strtoken:
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case Token.str:
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p.string_expr()
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typ = 'string'
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return typ
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@ -2232,11 +2249,11 @@ fn format_str(str string) string {
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}
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fn (p mut Parser) string_expr() {
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// println('.strtoken EXPR')
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// println('.str EXPR')
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str := p.lit
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p.fgen('\'$str\'')
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// No ${}, just return simple string
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// No ${}, just return a simple string
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if p.peek() != .dollar {
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p.fgen('\'$str\'')
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// println('before format: "$str"')
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f := format_str(str)
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// println('after format: "$str"')
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@ -2252,8 +2269,11 @@ fn (p mut Parser) string_expr() {
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// tmp := p.get_tmp()
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mut args := '"'
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mut format := '"'
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for p.tok == .strtoken {
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p.fgen('\'')
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mut complex_inter := false // for vfmt
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for p.tok == .str {
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// Add the string between %d's
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p.fgen(p.lit)
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p.lit = p.lit.replace('%', '%%')
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format += format_str(p.lit)
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p.next()// skip $
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@ -2261,7 +2281,13 @@ fn (p mut Parser) string_expr() {
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continue
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}
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// Handle .dollar
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p.next()
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p.check(.dollar)
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// If there's no string after current token, it means we are in
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// a complex expression (`${...}`)
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if p.peek() != .str {
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p.fgen('{')
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complex_inter = true
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}
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// Get bool expr inside a temp var
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p.cgen.start_tmp()
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typ := p.bool_expression()
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@ -2299,6 +2325,10 @@ fn (p mut Parser) string_expr() {
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format += f
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}
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}
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if complex_inter {
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p.fgen('}')
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}
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p.fgen('\'')
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// println("hello %d", num) optimization.
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if p.cgen.nogen {
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return
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@ -3140,7 +3170,7 @@ else {
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fn (p mut Parser) return_st() {
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p.cgen.insert_before(p.cur_fn.defer_text)
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p.check(.key_return)
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p.fgen(' ')
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fn_returns := p.cur_fn.typ != 'void'
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if fn_returns {
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if p.tok == .rcbr {
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@ -19,15 +19,15 @@ mut:
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debug bool
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line_comment string
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started bool
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is_fmt bool
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// vfmt fields
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fmt_out strings.Builder
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fmt_indent int
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fmt_line_empty bool
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prev_tok Token
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}
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const (
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SINGLE_QUOTE = `\'`
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SingleQuote = `\'`
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//QUOTE = `"`
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)
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@ -159,9 +159,6 @@ fn (s mut Scanner) skip_whitespace() {
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if !(s.text[s.pos] == `\n` && s.pos > 0 && s.text[s.pos-1] == `\r`) {
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s.line_nr++
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}
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if s.is_fmt {
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return
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}
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}
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s.pos++
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}
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@ -179,11 +176,17 @@ fn (s mut Scanner) get_var_name(pos int) string {
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}
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// CAO stands for Compound Assignment Operators (e.g '+=' )
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/*
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fn (s mut Scanner) cao_change(operator string) {
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s.text = s.text.substr(0, s.pos - operator.len) + ' = ' + s.get_var_name(s.pos - operator.len) + ' ' + operator + ' ' + s.text.substr(s.pos + 1, s.text.len)
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}
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*/
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fn (s mut Scanner) scan() ScanRes {
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if s.line_comment != '' {
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//s.fgenln('// LOL "$s.line_comment"')
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//s.line_comment = ''
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}
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// if s.file_path == 'd.v' {
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// println('\nscan()')
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// }
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@ -199,19 +202,15 @@ fn (s mut Scanner) scan() ScanRes {
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if !s.inside_string {
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s.skip_whitespace()
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}
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if s.is_fmt && s.text[s.pos] == `\n` {
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return scan_res(.nl, '')
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}
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// End of $var, start next string
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if !s.is_fmt && s.dollar_end {
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if s.dollar_end {
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// fmt.Println("end of $var, get string", s.pos, string(s.text[s.pos]))
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if s.text[s.pos] == SINGLE_QUOTE {
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// fmt.Println("ENDDD")
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if s.text[s.pos] == SingleQuote {
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s.dollar_end = false
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return scan_res(.strtoken, '')
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return scan_res(.str, '')
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}
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s.dollar_end = false
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return scan_res(.strtoken, s.ident_string())
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return scan_res(.str, s.ident_string())
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}
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s.skip_whitespace()
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// end of file
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@ -242,15 +241,15 @@ fn (s mut Scanner) scan() ScanRes {
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// at the next ', skip it
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if s.inside_string {
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// println('is_letter inside string! nextc=${nextc.str()}')
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if next_char == SINGLE_QUOTE {
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if next_char == SingleQuote {
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// println('var is last before QUOTE')
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s.pos++
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s.dollar_start = false
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s.inside_string = false
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}
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}
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if s.dollar_start && next_char != `.` {
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// println('INSIDE .strtoken .dollar var=$name')
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if s.dollar_start && next_char != `.` {//&& next_char != `(` {
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// println('INSIDE .str .dollar var=$name')
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s.dollar_end = true
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s.dollar_start = false
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}
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@ -261,7 +260,7 @@ fn (s mut Scanner) scan() ScanRes {
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}
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return scan_res(.name, name)
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}
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// number, `.123`
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// `123`, `.123`
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else if c.is_digit() || c == `.` && nextc.is_digit() {
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num := s.ident_number()
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return scan_res(.integer, num)
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@ -308,11 +307,11 @@ fn (s mut Scanner) scan() ScanRes {
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return scan_res(.mod, '')
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case `?`:
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return scan_res(.question, '')
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case SINGLE_QUOTE:
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return scan_res(.strtoken, s.ident_string())
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case SingleQuote:
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return scan_res(.str, s.ident_string())
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// TODO allow double quotes
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// case QUOTE:
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// return scan_res(.strtoken, s.ident_string())
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// return scan_res(.str, s.ident_string())
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case `\``:
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return scan_res(.chartoken, s.ident_char())
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case `(`:
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@ -337,11 +336,11 @@ fn (s mut Scanner) scan() ScanRes {
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if s.inside_string {
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s.pos++
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// TODO UN.neEDED?
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if s.text[s.pos] == SINGLE_QUOTE {
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if s.text[s.pos] == SingleQuote {
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s.inside_string = false
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return scan_res(.strtoken, '')
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return scan_res(.str, '')
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}
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return scan_res(.strtoken, s.ident_string())
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return scan_res(.str, s.ident_string())
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}
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else {
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return scan_res(.rcbr, '')
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@ -388,10 +387,6 @@ fn (s mut Scanner) scan() ScanRes {
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}
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s.line_nr++
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hash := s.text.substr(start, s.pos)
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if s.is_fmt {
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// fmt needs NL after #
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s.pos--
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}
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return scan_res(.hash, hash.trim_space())
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case `>`:
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if nextc == `=` {
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@ -471,17 +466,10 @@ fn (s mut Scanner) scan() ScanRes {
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s.line_nr++
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s.line_comment = s.text.substr(start + 1, s.pos)
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s.line_comment = s.line_comment.trim_space()
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s.fgenln('// $s.line_comment')
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if s.is_fmt {
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// fmt needs NL after comment
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s.pos--
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}
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else {
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// Skip comment
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s.fgenln('// ${s.prev_tok.str()} "$s.line_comment"')
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// Skip the comment (return the next token)
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return s.scan()
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}
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return scan_res(.line_com, s.line_comment)
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}
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// Multiline comments
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if nextc == `*` {
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start := s.pos
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@ -509,9 +497,6 @@ fn (s mut Scanner) scan() ScanRes {
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end := s.pos + 1
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comm := s.text.substr(start, end)
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s.fgenln(comm)
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if s.is_fmt {
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return scan_res(.mline_com, comm)
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}
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// Skip if not in fmt mode
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return s.scan()
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}
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@ -564,7 +549,7 @@ fn (s mut Scanner) ident_string() string {
|
|||
}
|
||||
prevc := s.text[s.pos - 1]
|
||||
// end of string
|
||||
if c == SINGLE_QUOTE && (prevc != slash || (prevc == slash && s.text[s.pos - 2] == slash)) {
|
||||
if c == SingleQuote && (prevc != slash || (prevc == slash && s.text[s.pos - 2] == slash)) {
|
||||
// handle '123\\' slash at the end
|
||||
break
|
||||
}
|
||||
|
|
@ -581,17 +566,15 @@ fn (s mut Scanner) ident_string() string {
|
|||
s.error('0 character in a string literal')
|
||||
}
|
||||
// ${var}
|
||||
if !s.is_fmt && c == `{` && prevc == `$` {
|
||||
if c == `{` && prevc == `$` {
|
||||
s.inside_string = true
|
||||
// fmt.Println("breaking out of is()")
|
||||
// so that s.pos points to $ at the next step
|
||||
s.pos -= 2
|
||||
// fmt.Println("break pos=", s.pos, "c=", string(s.text[s.pos]), "d=", s.text[s.pos])
|
||||
break
|
||||
}
|
||||
// $var
|
||||
// if !s.is_fmt && c != `{` && c != ` ` && ! (c >= `0` && c <= `9`) && prevc == `$` {
|
||||
if !s.is_fmt && (c.is_letter() || c == `_`) && prevc == `$` {
|
||||
if (c.is_letter() || c == `_`) && prevc == `$` {
|
||||
s.inside_string = true
|
||||
s.dollar_start = true
|
||||
// println('setting s.dollar=true pos=$s.pos')
|
||||
|
|
@ -600,7 +583,7 @@ fn (s mut Scanner) ident_string() string {
|
|||
}
|
||||
}
|
||||
mut lit := ''
|
||||
if s.text[start] == SINGLE_QUOTE {
|
||||
if s.text[start] == SingleQuote {
|
||||
start++
|
||||
}
|
||||
mut end := s.pos
|
||||
|
|
@ -685,7 +668,7 @@ fn (s mut Scanner) peek() Token {
|
|||
fn (s mut Scanner) debug_tokens() {
|
||||
s.pos = 0
|
||||
fname := s.file_path.all_after('/')
|
||||
println('\n===DEBUG TOKENS $fname ============')
|
||||
println('\n===DEBUG TOKENS $fname===')
|
||||
// allToks := ''
|
||||
s.debug = true
|
||||
for {
|
||||
|
|
|
|||
|
|
@ -6,20 +6,21 @@ module main
|
|||
|
||||
enum Token {
|
||||
eof
|
||||
name
|
||||
integer
|
||||
strtoken
|
||||
chartoken
|
||||
name // user
|
||||
integer // 123
|
||||
str // 'foo'
|
||||
str_inter // 'name=$user.name'
|
||||
chartoken // `A`
|
||||
plus
|
||||
minus
|
||||
mul
|
||||
div
|
||||
mod
|
||||
xor
|
||||
pipe
|
||||
inc
|
||||
dec
|
||||
and
|
||||
xor // ^
|
||||
pipe // |
|
||||
inc // ++
|
||||
dec // --
|
||||
and // &&
|
||||
logical_or
|
||||
not
|
||||
bit_not
|
||||
|
|
@ -61,8 +62,8 @@ enum Token {
|
|||
ge
|
||||
le
|
||||
// comments
|
||||
line_com
|
||||
mline_com
|
||||
//line_com
|
||||
//mline_com
|
||||
nl
|
||||
dot
|
||||
dotdot
|
||||
|
|
@ -127,7 +128,7 @@ fn build_token_str() []string {
|
|||
s[Token.eof] = '.eof'
|
||||
s[Token.name] = '.name'
|
||||
s[Token.integer] = '.integer'
|
||||
s[Token.strtoken] = 'STR'
|
||||
s[Token.str] = 'STR'
|
||||
s[Token.chartoken] = '.chartoken'
|
||||
s[Token.plus] = '+'
|
||||
s[Token.minus] = '-'
|
||||
|
|
@ -177,7 +178,7 @@ fn build_token_str() []string {
|
|||
s[Token.question] = '?'
|
||||
s[Token.left_shift] = '<<'
|
||||
s[Token.righ_shift] = '>>'
|
||||
s[Token.line_com] = '//'
|
||||
//s[Token.line_com] = '//'
|
||||
s[Token.nl] = 'NLL'
|
||||
s[Token.dollar] = '$'
|
||||
s[Token.key_assert] = 'assert'
|
||||
|
|
|
|||
|
|
@ -299,3 +299,22 @@ fn test_reverse() {
|
|||
t := ''
|
||||
assert t.reverse() == t
|
||||
}
|
||||
|
||||
|
||||
struct Foo {
|
||||
bar int
|
||||
}
|
||||
|
||||
fn (f Foo) baz() string {
|
||||
return 'baz'
|
||||
}
|
||||
|
||||
fn test_interpolation() {
|
||||
num := 7
|
||||
mut s := 'number=$num'
|
||||
assert s == 'number=7'
|
||||
foo := Foo{}
|
||||
s = 'baz=${foo.baz()}'
|
||||
assert s == 'baz=baz'
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue