250 lines
5.8 KiB
V
250 lines
5.8 KiB
V
// Copyright (c) 2019 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 compiler
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import (
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strings
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os
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)
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/*
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.vh generation logic.
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.vh files contain only function signatures, consts, and types.
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They are used together with pre-compiled modules.
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*/
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// `mod` == "vlib/os"
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fn generate_vh(mod string) {
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println('\n\n\n\nGenerating a V header file for module `$mod`')
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vexe := os.executable()
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full_mod_path := os.dir(vexe) + '/' + mod
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mod_path := mod.replace('.', os.path_separator)
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dir := if mod.starts_with('vlib') {
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'$compiler.v_modules_path${os.path_separator}$mod'
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} else {
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'$compiler.v_modules_path${os.path_separator}$mod'
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}
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path := dir + '.vh'
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pdir := dir.all_before_last(os.path_separator)
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if !os.dir_exists(pdir) {
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os.mkdir_all(pdir)
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// os.mkdir(os.realpath(dir))
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}
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out := os.create(path) or { panic(err) }
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// Consts
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println(full_mod_path)
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mut vfiles := os.walk_ext(full_mod_path, '.v')
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filtered := vfiles.filter(!it.ends_with('test.v') && !it.ends_with('_windows.v')) // TODO merge once filter allows it
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println(filtered)
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mut v := new_v(['foo.v'])
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//v.pref.generating_vh = true
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for file in filtered {
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mut p := v.new_parser_from_file(file)
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p.scanner.is_vh = true
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p.parse(.decl)
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for i, tok in p.tokens {
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if !p.tok.is_decl() {
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continue
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}
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match tok.tok {
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TokenKind.key_fn { generate_fn(out, p.tokens, i) }
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TokenKind.key_const { generate_const(out, p.tokens, i) }
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}
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}
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}
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}
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fn generate_fn(file os.File, tokens []Token, i int) {
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mut out := strings.new_builder(100)
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mut next := tokens[i+1]
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if tokens[i-1].tok != .key_pub {
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// Skip private fns
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return
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}
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if next.tok == .name && next.lit == 'C' {
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println('skipping C')
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return
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}
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//out.write('pub ')
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mut tok := tokens[i]
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for i < tokens.len && tok.tok != .lcbr {
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next = tokens[i+1]
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out.write(tok.str())
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if tok.tok != .lpar && !(next.tok in [.comma, .rpar]) {
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// No space after (), [], etc
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out.write(' ')
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}
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i++
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tok = tokens[i]
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}
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file.writeln(out.str())
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}
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fn generate_const(file os.File, tokens []Token, i int) {
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mut out := strings.new_builder(100)
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mut tok := tokens[i]
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for i < tokens.len && tok.tok != .rpar {
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out.write(tok.str())
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out.write(' ')
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if tokens[i+2].tok == .assign {
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out.write('\n\t')
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}
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i++
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tok = tokens[i]
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}
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out.writeln('\n)')
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file.writeln(out.str())
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}
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/*
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fn (v &V) generate_vh_old() {
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println('\n\n\n\nGenerating a V header file for module `$v.mod`')
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mod_path := v.mod.replace('.', os.path_separator)
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dir := if v.dir.starts_with('vlib') {
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'$v_modules_path${os.path_separator}$v.dir'
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} else {
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'$v_modules_path${os.path_separator}$mod_path'
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}
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path := dir + '.vh'
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pdir := dir.all_before_last(os.path_separator)
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if !os.dir_exists(pdir) {
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os.mkdir_all(pdir)
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// os.mkdir(os.realpath(dir))
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}
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file := os.create(path) or { panic(err) }
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// Consts
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mod_def := if v.mod.contains('.') { v.mod.all_after('.') } else { v.mod }
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file.writeln('// $v.mod module header \n')
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file.writeln('module $mod_def')
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file.writeln('// Consts')
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if v.table.consts.len > 0 {
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file.writeln('const (')
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for i, c in v.table.consts {
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if c.mod != v.mod {
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continue
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}
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// println('$i $c.name')
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//if !c.name.contains('__') {
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//continue
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//}
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name := c.name.all_after('__')
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typ := v_type_str(c.typ)
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file.writeln('\t$name $typ')
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}
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file.writeln(')\n')
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// Globals
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for var in v.table.consts {
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if var.mod != v.mod {
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continue
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}
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if !var.is_global {
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continue
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}
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name := var.name.all_after('__')
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typ := v_type_str(var.typ)
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file.writeln('__global $name $typ')
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}
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file.writeln('\n')
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}
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// Types
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file.writeln('// Types')
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for _, typ in v.table.typesmap {
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//println(typ.name)
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if typ.mod != v.mod && typ.mod != ''{ // int, string etc mod == ''
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// println('skipping type "$typ.name"')
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continue
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}
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if typ.name.contains('_V_MulRet') {
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continue
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}
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mut name := typ.name
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if typ.name.contains('__') {
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name = typ.name.all_after('__')
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}
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// type alias
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if typ.parent != '' && typ.cat == .alias {
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parent := v_type_str(typ.parent)
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file.writeln('type $typ.name $parent')
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}
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if typ.cat in [TypeCategory.struct_, .c_struct] {
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c := if typ.is_c { 'C.' } else { '' }
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file.writeln('struct ${c}$name {')
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// Private fields
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for field in typ.fields {
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if field.access_mod == .public {
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continue
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}
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field_type := v_type_str(field.typ).replace('*', '&')
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file.writeln('\t$field.name $field_type')
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}
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//file.writeln('pub:')
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mut public_str := ''
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for field in typ.fields {
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if field.access_mod == .private {
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continue
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}
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field_type := v_type_str(field.typ).replace('*', '&')
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public_str += '\t$field.name $field_type\n'
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//file.writeln('\t$field.name $field_type')
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}
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if public_str != '' {
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file.writeln('pub:' + public_str)
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}
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file.writeln('}\n')
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}
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}
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// Functions & methods
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file.writeln('// Functions')
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// Public first
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mut fns := []Fn
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// TODO fns := v.table.fns.filter(.mod == v.mod)
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for _, f in v.table.fns {
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if f.mod == v.mod || f.mod == ''{
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fns << f
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} else {
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//println('skipping fn $f.name mod=$f.mod')
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}
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}
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for _, f in fns {
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if !f.is_public {
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continue
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}
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file.writeln(f.v_definition())
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}
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// Private
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for _, f in fns {
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if f.is_public {
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continue
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}
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file.writeln(f.v_definition())
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}
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// Methods
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file.writeln('\n// Methods //////////////////')
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for _, typ in v.table.typesmap {
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if typ.mod != v.mod && !(v.mod == 'builtin' && typ.mod == '') {
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// println('skipping method typ $typ.name mod=$typ.mod')
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continue
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}
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for method in typ.methods {
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file.writeln(method.v_definition())
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}
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}
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file.close()
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/*
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for i, p in v.parsers {
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if v.parsers[i].vh_lines.len > 0 {
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os.write_file(p.file_name +'.vh', v.parsers[i].vh_lines.join('\n'))
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}
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}
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*/
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}
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*/
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