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Add KeywordModifierSet helper for conversion to (likely SemIR) enums (#4290)

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(based on
https://github.com/carbon-language/carbon-lang/pull/4272#discussion_r1751001345)

Could haggle over the name "ToEnum" probably avoids the debate over
"enumeration" (the type being returned) v "enumerator" (the value being
returned)

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
This commit is contained in:
David Blaikie
2024-09-10 22:01:21 +00:00
committed by GitHub
co-authored by Jon Ross-Perkins
parent 6311552fcc
commit b8f61a712e
3 changed files with 51 additions and 18 deletions
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toolchain/check/handle_class.cpp
+4 -5
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@@ -201,11 +201,10 @@ static auto BuildClassDecl(Context& context, Parse::AnyClassDeclId node_id,
context.TODO(node_id, "extern library");
}
auto inheritance_kind =
introducer.modifier_set.HasAnyOf(KeywordModifierSet::Abstract)
? SemIR::Class::Abstract
: introducer.modifier_set.HasAnyOf(KeywordModifierSet::Base)
? SemIR::Class::Base
: SemIR::Class::Final;
introducer.modifier_set.ToEnum<SemIR::Class::InheritanceKind>()
.Case(KeywordModifierSet::Abstract, SemIR::Class::Abstract)
.Case(KeywordModifierSet::Base, SemIR::Class::Base)
.Default(SemIR::Class::Final);
auto decl_block_id = context.inst_block_stack().Pop();