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LibJS: Add an initialize binding hint to all initialize_binding methods

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This will allow us to specify things like SyncDispose and perhaps
AsyncDispose in the future.
This commit is contained in:
davidot 2022-12-14 13:26:10 +01:00 • committed by Linus Groh
parent 3353cf68f1
commit a746739cb0
14 changed files with 68 additions and 57 deletions
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18
Userland/Libraries/LibJS/Runtime/AbstractOperations.cpp
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@ -205,8 +205,9 @@ ThrowCompletionOr<void> initialize_bound_name(VM& vm, DeprecatedFlyString const&
{
// 1. If environment is not undefined, then
if (environment) {
// a. Perform ! environment.InitializeBinding(name, value).
MUST(environment->initialize_binding(vm, name, value));
// FIXME: The normal is not included in the explicit resource management spec yet, so there is no spec link for it.
// a. Perform ! environment.InitializeBinding(name, value, normal).
MUST(environment->initialize_binding(vm, name, value, Environment::InitializeBindingHint::Normal));
// b. Return unused.
return {};
@ -729,6 +730,7 @@ ThrowCompletionOr<Value> perform_eval(VM& vm, Value x, CallerMode strict_caller,
}
// 19.2.1.3 EvalDeclarationInstantiation ( body, varEnv, lexEnv, privateEnv, strict ), https://tc39.es/ecma262/#sec-evaldeclarationinstantiation
// 9.1.1.1 EvalDeclarationInstantiation ( body, varEnv, lexEnv, privateEnv, strict ), https://tc39.es/proposal-explicit-resource-management/#sec-evaldeclarationinstantiation
ThrowCompletionOr<void> eval_declaration_instantiation(VM& vm, Program const& program, Environment* variable_environment, Environment* lexical_environment, PrivateEnvironment* private_environment, bool strict)
{
auto& realm = *vm.current_realm();
@ -903,9 +905,9 @@ ThrowCompletionOr<void> eval_declaration_instantiation(VM& vm, Program const& pr
// ii. If bindingExists is false, then
if (!MUST(variable_environment->has_binding(function_name))) {
// i. Perform ! varEnv.CreateMutableBinding(F, true).
// ii. Perform ! varEnv.InitializeBinding(F, undefined).
MUST(variable_environment->create_mutable_binding(vm, function_name, true));
MUST(variable_environment->initialize_binding(vm, function_name, js_undefined()));
// ii. Perform ! varEnv.InitializeBinding(F, undefined, normal).
MUST(variable_environment->initialize_binding(vm, function_name, js_undefined(), Environment::InitializeBindingHint::Normal));
}
}
}
@ -1003,8 +1005,8 @@ ThrowCompletionOr<void> eval_declaration_instantiation(VM& vm, Program const& pr
// 2. Perform ! varEnv.CreateMutableBinding(fn, true).
MUST(variable_environment->create_mutable_binding(vm, declaration.name(), true));
// 3. Perform ! varEnv.InitializeBinding(fn, fo).
MUST(variable_environment->initialize_binding(vm, declaration.name(), function));
// 3. Perform ! varEnv.InitializeBinding(fn, fo, normal).
MUST(variable_environment->initialize_binding(vm, declaration.name(), function, Environment::InitializeBindingHint::Normal));
}
// iii. Else,
else {
@ -1033,8 +1035,8 @@ ThrowCompletionOr<void> eval_declaration_instantiation(VM& vm, Program const& pr
// 2. Perform ! varEnv.CreateMutableBinding(vn, true).
MUST(variable_environment->create_mutable_binding(vm, var_name, true));
// 3. Perform ! varEnv.InitializeBinding(vn, undefined).
MUST(variable_environment->initialize_binding(vm, var_name, js_undefined()));
// 3. Perform ! varEnv.InitializeBinding(vn, undefined, normal).
MUST(variable_environment->initialize_binding(vm, var_name, js_undefined(), Environment::InitializeBindingHint::Normal));
}
}
}