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Parse do yeet expressions

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Maybe Waffle 2022-12-28 22:42:26 +00:00
parent 3033c3ddbf
commit 4a16afa264
7 changed files with 73 additions and 5 deletions
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20
crates/parser/src/grammar/expressions/atom.rs
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@ -48,6 +48,7 @@ pub(super) const ATOM_EXPR_FIRST: TokenSet =
T![unsafe],
T![return],
T![yield],
T![do],
T![break],
T![continue],
T![async],
@ -93,6 +94,7 @@ pub(super) fn atom_expr(
T![match] => match_expr(p),
T![return] => return_expr(p),
T![yield] => yield_expr(p),
T![do] if p.nth_at_contextual_kw(1, T![yeet]) => yeet_expr(p),
T![continue] => continue_expr(p),
T![break] => break_expr(p, r),
@ -533,6 +535,7 @@ fn return_expr(p: &mut Parser<'_>) -> CompletedMarker {
}
m.complete(p, RETURN_EXPR)
}
// test yield_expr
// fn foo() {
// yield;
@ -548,6 +551,23 @@ fn yield_expr(p: &mut Parser<'_>) -> CompletedMarker {
m.complete(p, YIELD_EXPR)
}
// test yeet_expr
// fn foo() {
// do yeet;
// do yeet 1
// }
fn yeet_expr(p: &mut Parser<'_>) -> CompletedMarker {
assert!(p.at(T![do]));
assert!(p.nth_at_contextual_kw(1, T![yeet]));
let m = p.start();
p.bump(T![do]);
p.bump_remap(T![yeet]);
if p.at_ts(EXPR_FIRST) {
expr(p);
}
m.complete(p, YEET_EXPR)
}
// test continue_expr
// fn foo() {
// loop {