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parser: cleanup map syntax (#13713)

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yuyi 2022-03-11 17:15:52 +08:00 committed by GitHub
parent c1c3ae2a18
commit 1993bf2a12
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4 changed files with 12 additions and 16 deletions

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@ -46,12 +46,8 @@ pub fn (mut p Parser) check_expr(precedence int) ?ast.Expr {
p.inside_match = false
} else if p.tok.lit == 'map' && p.peek_tok.kind == .lcbr && !(p.builtin_mod
&& p.file_base in ['map.v', 'map_d_gcboehm_opt.v']) {
p.warn_with_pos("deprecated map syntax, use syntax like `{'age': 20}`",
p.error_with_pos("deprecated map syntax, use syntax like `{'age': 20}`",
p.tok.pos())
p.next() // `map`
p.next() // `{`
node = p.map_init()
p.check(.rcbr) // `}`
} else {
if p.inside_if && p.is_generic_name() && p.peek_tok.kind != .dot {
// $if T is string {}

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@ -2320,17 +2320,7 @@ pub fn (mut p Parser) name_expr() ast.Expr {
} else if (p.peek_tok.kind == .lcbr || (p.peek_tok.kind == .lt && lit0_is_capital))
&& (!p.inside_match || (p.inside_select && prev_tok_kind == .arrow && lit0_is_capital))
&& !p.inside_match_case && (!p.inside_if || p.inside_select)
&& (!p.inside_for || p.inside_select) && !known_var { // && (p.tok.lit[0].is_capital() || p.builtin_mod) {
// map.v has struct literal: map{field: expr}
if p.peek_tok.kind == .lcbr && !(p.builtin_mod
&& p.file_base in ['map.v', 'map_d_gcboehm_opt.v']) && p.tok.lit == 'map' {
// map{key_expr: val_expr}
p.check(.name)
p.check(.lcbr)
map_init := p.map_init()
p.check(.rcbr)
return map_init
}
&& (!p.inside_for || p.inside_select) && !known_var {
return p.struct_init(p.mod + '.' + p.tok.lit, false) // short_syntax: false
} else if p.peek_tok.kind == .lcbr && p.inside_if && lit0_is_capital && !known_var
&& language == .v {

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@ -0,0 +1,6 @@
vlib/v/parser/tests/map_syntax_err.vv:2:7: error: deprecated map syntax, use syntax like `{'age': 20}`
1 | fn main() {
2 | m := map{"aaa": 1}
| ~~~
3 | println(m)
4 | }

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@ -0,0 +1,4 @@
fn main() {
m := map{"aaa": 1}
println(m)
}