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Implement builtin#format_args, using rustc's format_args parser

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This commit is contained in:
Lukas Wirth 2023-09-05 19:06:15 +02:00
parent 3431d586e5
commit abe8f1ece4
19 changed files with 1740 additions and 14 deletions
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20
crates/parser/src/grammar/expressions/atom.rs
View file

@ -219,7 +219,7 @@ fn tuple_expr(p: &mut Parser<'_>) -> CompletedMarker {
// test builtin_expr
// fn foo() {
// builtin#asm(0);
// builtin#format_args(0);
// builtin#format_args("", 0, 1, a = 2 + 3, a + b);
// builtin#offset_of(Foo, bar.baz.0);
// }
fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> {
@ -249,6 +249,24 @@ fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> {
p.bump_remap(T![format_args]);
p.expect(T!['(']);
expr(p);
if p.eat(T![,]) {
while !p.at(EOF) && !p.at(T![')']) {
let m = p.start();
if p.at(IDENT) && p.nth_at(1, T![=]) {
name(p);
p.bump(T![=]);
}
if expr(p).is_none() {
m.abandon(p);
break;
}
m.complete(p, FORMAT_ARGS_ARG);
if !p.at(T![')']) {
p.expect(T![,]);
}
}
}
p.expect(T![')']);
Some(m.complete(p, FORMAT_ARGS_EXPR))
} else if p.at_contextual_kw(T![asm]) {

1
crates/parser/src/syntax_kind/generated.rs
View file

@ -210,6 +210,7 @@ pub enum SyntaxKind {
OFFSET_OF_EXPR,
ASM_EXPR,
FORMAT_ARGS_EXPR,
FORMAT_ARGS_ARG,
CALL_EXPR,
INDEX_EXPR,
METHOD_CALL_EXPR,