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LibJS: Convert create_mutable_binding() to ThrowCompletionOr

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Also add spec step comments to it while we're here.
This commit is contained in:
Linus Groh 2021-10-09 18:53:25 +01:00
parent fbb176c926
commit 4baf3a91e8
10 changed files with 43 additions and 39 deletions
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16
Userland/Libraries/LibJS/AST.cpp
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@ -545,7 +545,7 @@ Value ForStatement::execute(Interpreter& interpreter, GlobalObject& global_objec
if (declaration.declaration_kind() == DeclarationKind::Const) {
loop_environment->create_immutable_binding(global_object, name, true);
} else {
loop_environment->create_mutable_binding(global_object, name, false);
MUST(loop_environment->create_mutable_binding(global_object, name, false));
let_declarations.append(name);
}
return IterationDecision::Continue;
@ -571,7 +571,7 @@ Value ForStatement::execute(Interpreter& interpreter, GlobalObject& global_objec
VERIFY(outer);
auto* this_iteration_env = new_declarative_environment(*outer);
for (auto& name : let_declarations) {
this_iteration_env->create_mutable_binding(global_object, name, false);
MUST(this_iteration_env->create_mutable_binding(global_object, name, false));
auto last_value = last_iteration_env->get_binding_value(global_object, name, true);
if (auto* exception = interpreter.exception())
return throw_completion(exception->value());
@ -685,7 +685,7 @@ struct ForInOfHeadState {
if (for_declaration.declaration_kind() == DeclarationKind::Const)
iteration_environment->create_immutable_binding(global_object, name, false);
else
iteration_environment->create_mutable_binding(global_object, name, true);
MUST(iteration_environment->create_mutable_binding(global_object, name, true));
});
interpreter.vm().running_execution_context().lexical_environment = iteration_environment;
@ -766,7 +766,7 @@ static ThrowCompletionOr<ForInOfHeadState> for_in_of_head_execute(Interpreter& i
state.lhs_kind = ForInOfHeadState::LexicalBinding;
new_environment = new_declarative_environment(*interpreter.lexical_environment());
variable_declaration.for_each_bound_name([&](auto const& name) {
new_environment->create_mutable_binding(global_object, name, false);
MUST(new_environment->create_mutable_binding(global_object, name, false));
});
}
@ -2770,11 +2770,11 @@ Value TryStatement::execute(Interpreter& interpreter, GlobalObject& global_objec
m_handler->parameter().visit(
[&](FlyString const& parameter) {
catch_scope->create_mutable_binding(global_object, parameter, false);
MUST(catch_scope->create_mutable_binding(global_object, parameter, false));
},
[&](NonnullRefPtr<BindingPattern> const& pattern) {
pattern->for_each_bound_name([&](auto& name) {
catch_scope->create_mutable_binding(global_object, name, false);
MUST(catch_scope->create_mutable_binding(global_object, name, false));
});
});
@ -3191,7 +3191,7 @@ void ScopeNode::block_declaration_instantiation(GlobalObject& global_object, Env
environment->create_immutable_binding(global_object, name, true);
} else {
if (!MUST(environment->has_binding(name)))
environment->create_mutable_binding(global_object, name, false);
MUST(environment->create_mutable_binding(global_object, name, false));
}
});
@ -3329,7 +3329,7 @@ ThrowCompletionOr<void> Program::global_declaration_instantiation(Interpreter& i
if (declaration.is_constant_declaration())
global_environment.create_immutable_binding(global_object, name, true);
else
global_environment.create_mutable_binding(global_object, name, false);
(void)global_environment.create_mutable_binding(global_object, name, false);
if (interpreter.exception())
return IterationDecision::Break;