250 lines
5.4 KiB
V
250 lines
5.4 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 main
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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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// "fn foo(a int) string"
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fn (f &Fn) v_definition() string {
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//t :=time.ticks()
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mut sb := strings.new_builder(100)
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if f.is_public {
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sb.write('pub ')
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}
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sb.write('fn ')
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if f.is_c {
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sb.write('C.')
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}
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if f.is_method {
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recv := f.args[0]
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typ := v_type_str(recv.typ).replace('*', '')
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mut mu := if recv.is_mut { 'mut' } else { '' }
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if recv.ref {
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mu = '&'
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}
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sb.write('($recv.name $mu $typ) ')
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}
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if f.name.contains('__') {
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sb.write(f.name.all_after('__') + '(')
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} else {
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sb.write('$f.name(')
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}
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for i, arg in f.args {
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if i == 0 && f.is_method { // skip the receiver
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continue
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}
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typ := v_type_str(arg.typ).replace('*', '&')
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if arg.name == '' {
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sb.write(typ)
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} else {
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sb.write('$arg.name $typ')
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}
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if i != f.args.len - 1 {
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sb.write(', ')
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}
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}
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sb.write(')')
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if f.typ != 'void' {
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typ := v_type_str(f.typ).replace('*', '&')
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sb.write(' ')
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sb.write(typ)
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sb.writeln(' ')
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}
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//println('ms: ${time.ticks() - t}')
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return sb.str()
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}
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fn v_type_str(typ_ string) string {
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mut typ := if typ_.ends_with('*') {
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'*' + typ_.left(typ_.len - 1)
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} else {
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typ_
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}
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typ = typ.replace('Option_', '?')
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if typ.contains('_V_MulRet') {
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words := typ.replace('_V_MulRet_', '').split('_V_')
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typ = '('
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for i in 0 .. words.len {
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typ += words[i]
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if i != words.len - 1 {
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typ += ','
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}
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}
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typ += ')'
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return typ
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}
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//println('"$typ"')
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if typ == '*void' {
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return 'voidptr'
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}
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if typ == '*byte' {
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return 'byteptr'
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}
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if typ.starts_with('array_') {
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return '[]' + typ.right(6)
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}
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if typ.contains('__') {
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opt := typ.starts_with('?')
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typ = typ.all_after('__')
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if opt {
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typ = '?' + typ
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}
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}
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return typ
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}
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fn (v &V) generate_vh() {
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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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