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cgen: escape quotes & nl in string literals

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This commit is contained in:
Joe Conigliaro 2020-03-12 21:13:46 +11:00
parent bb5034f3fe
commit 99398ba652
2 changed files with 12 additions and 14 deletions
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19
vlib/compiler/aparser.v
View File

@ -24,7 +24,7 @@ struct Parser {
pref &pref.Preferences
mut:
scanner &Scanner
// Preferences shared from V struct
// Preferences shared from V struct
tokens []Token
token_idx int
prev_stuck_token_idx int
@ -180,7 +180,7 @@ fn (v mut V) new_parser_from_file(path string) Parser {
p = {
p |
file_path:path,
file_path_dir: path_dir,
file_path_dir:path_dir,
file_name:path.all_after(os.path_separator),
file_platform:path_platform,
file_pcguard:path_pcguard,
@ -720,7 +720,7 @@ fn (p mut Parser) const_decl() {
// }
continue
}
var_token_idx := p.cur_tok_index()
var_token_idx := p.cur_tok_index()
mut name := p.check_name() // `Age = 20`
// if !p.pref.building_v && p.mod != 'os' && contains_capital(name) {
// p.warn('const names cannot contain uppercase letters, use snake_case instead')
@ -872,11 +872,7 @@ fn (p mut Parser) type_decl() {
}
p.cgen.consts << '#define SumType_${name}_$child_type_name $idx // DEF2'
ctype_names << child_type_name
sum_variants << if p.mod in ['builtin', 'main'] || child_type_name in builtin_types {
child_type_name
} else {
p.prepend_mod(child_type_name)
}
sum_variants << if p.mod in ['builtin', 'main'] || child_type_name in builtin_types { child_type_name } else { p.prepend_mod(child_type_name) }
}
if done {
break
@ -2598,10 +2594,9 @@ fn (p mut Parser) char_expr() {
fn format_str(_str string) string {
// TODO don't call replace 3 times for every string, do this in scanner.v
mut str := _str.replace('"', '\\"')
str = str.replace('\r\n', '\\n')
str = str.replace('\n', '\\n')
return str
return _str.replace_each(['"', '\\"',
'\n', '\\n',
'\r\n', '\\n'])
}
// m := map[string]int{}

7
vlib/v/gen/cgen.v
View File

@ -809,11 +809,14 @@ fn (g mut Gen) expr(node ast.Expr) {
ast.StringLiteral {
// In C calls we have to generate C strings
// `C.printf("hi")` => `printf("hi");`
escaped_val := it.val.replace_each(['"', '\\"',
'\n', '\\n',
'\r\n', '\\n'])
if g.is_c_call {
g.write('"$it.val"')
g.write('"$escaped_val"')
}
else {
g.write('tos3("$it.val")')
g.write('tos3("$escaped_val")')
}
}
// `user := User{name: 'Bob'}`