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Add parse support for multiple requirements after where separated by and (#4298)

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Follow on to #4275 that added `where` parse support.

---------

Co-authored-by: Josh L <josh11b@users.noreply.github.com>
Co-authored-by: Richard Smith <richard@metafoo.co.uk>
This commit is contained in:
josh11b
2024-09-11 21:36:55 +00:00
committed by GitHub
co-authored by Josh L Richard Smith
parent 6bfaa888e8
commit d6b2fb1736
14 changed files with 197 additions and 57 deletions
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toolchain/parse/handle_requirement.cpp
+8 -1
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@@ -10,6 +10,7 @@ namespace Carbon::Parse {
auto HandleRequirementBegin(Context& context) -> void {
context.PopAndDiscardState();
// TODO: Peek ahead for `.designator = ...`, and give it special handling.
context.PushState(State::RequirementOperator);
context.PushStateForExpr(PrecedenceGroup::ForRequirements());
}
@@ -69,7 +70,13 @@ auto HandleRequirementOperatorFinish(Context& context) -> void {
<< token_kind;
return;
}
// TODO: Handle `and` token.
if (state.has_error) {
context.ReturnErrorOnState();
}
if (auto token = context.ConsumeIf(Lex::TokenKind::And)) {
context.AddNode(NodeKind::RequirementAnd, *token, /*has_error=*/false);
context.PushState(State::RequirementBegin);
}
}
auto HandleWhereFinish(Context& context) -> void {