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parser: fix parsing embedded generic interface using '[]' (#16603)

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yuyi 2022-12-06 18:37:36 +08:00 committed by GitHub
parent 46bb62955b
commit a96e2e7093
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3 changed files with 7 additions and 6 deletions
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6
vlib/v/checker/tests/generics_interface_decl_no_mention_err.out
View File

@ -1,19 +1,19 @@
vlib/v/checker/tests/generics_interface_decl_no_mention_err.vv:4:2: error: generic type name `T` is not mentioned in interface `Foo<U>`
2 |
3 | interface Foo[U] {
4 | Bar<T>
4 | Bar[T]
| ~~~
5 | foo(u U, p P)
6 | bar(u U) []P
vlib/v/checker/tests/generics_interface_decl_no_mention_err.vv:5:13: error: generic type name `P` is not mentioned in interface `Foo<U>`
3 | interface Foo[U] {
4 | Bar<T>
4 | Bar[T]
5 | foo(u U, p P)
| ^
6 | bar(u U) []P
7 | }
vlib/v/checker/tests/generics_interface_decl_no_mention_err.vv:6:11: error: generic type name `P` is not mentioned in interface `Foo<U>`
4 | Bar<T>
4 | Bar[T]
5 | foo(u U, p P)
6 | bar(u U) []P
| ~~~

2
vlib/v/checker/tests/generics_interface_decl_no_mention_err.vv
View File

@ -1,7 +1,7 @@
fn main() {}
interface Foo[U] {
Bar<T>
Bar[T]
foo(u U, p P)
bar(u U) []P
}

5
vlib/v/parser/struct.v
View File

@ -569,7 +569,8 @@ fn (mut p Parser) interface_decl() ast.InterfaceDecl {
for p.tok.kind != .rcbr && p.tok.kind != .eof {
if p.tok.kind == .name && p.tok.lit.len > 0 && p.tok.lit[0].is_capital()
&& (p.peek_tok.line_nr != p.tok.line_nr
|| p.peek_tok.kind !in [.name, .amp, .lsbr, .lpar]) {
|| p.peek_tok.kind !in [.name, .amp, .lsbr, .lpar]
|| (p.peek_tok.kind == .lsbr && p.peek_tok.pos - p.tok.pos == p.tok.len)) {
iface_pos := p.tok.pos()
mut iface_name := p.tok.lit
iface_type := p.parse_type()
@ -624,7 +625,7 @@ fn (mut p Parser) interface_decl() ast.InterfaceDecl {
is_mut = true
mut_pos = fields.len
}
if p.peek_tok.kind == .lt {
if p.peek_tok.kind in [.lt, .lsbr] && p.peek_tok.pos - p.tok.pos == p.tok.len {
p.error_with_pos("no need to add generic type names in generic interface's method",
p.peek_tok.pos())
return ast.InterfaceDecl{}