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LibWeb: Fix bindings codegen for IDL enums with only one member

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The SourceGenerator's @else@ mapping is only set in the second iteration
of the loop, causing the generated return for unrecognized values to not
be guarded by an else statement.
We can simply use a hardcoded 'else' here, @else@ is only to create the
first comparison as a plain 'if' and subsequent ones as 'else if'.
This commit is contained in:
Linus Groh 2022-09-25 15:34:57 +01:00
parent fd52119ca3
commit d38f1fb5b2
1 changed files with 3 additions and 2 deletions
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5
Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
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@ -585,6 +585,7 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
auto @js_name.as_string@ = TRY(@js_name@@js_suffix@.to_string(vm));
)~~~");
auto first = true;
VERIFY(enumeration.translated_cpp_names.size() >= 1);
for (auto& it : enumeration.translated_cpp_names) {
enum_generator.set("enum.alt.name", it.key);
enum_generator.set("enum.alt.value", it.value);
@ -600,12 +601,12 @@ static void generate_to_cpp(SourceGenerator& generator, ParameterType& parameter
// NOTE: Attribute setters return undefined instead of throwing when the string doesn't match an enum value.
if constexpr (!IsSame<Attribute, RemoveConst<ParameterType>>) {
enum_generator.append(R"~~~(
@else@
else
return vm.throw_completion<JS::TypeError>(JS::ErrorType::InvalidEnumerationValue, @js_name.as_string@, "@parameter.type.name@");
)~~~");
} else {
enum_generator.append(R"~~~(
@else@
else
return JS::js_undefined();
)~~~");
}