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LibJS: Convert NativeFunction::{call,construct}() to ThrowCompletionOr

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Both at the same time because many of them call construct() in call()
and I'm not keen on adding a bunch of temporary plumbing to turn
exceptions into throw completions.
Also changes the return value of construct() to Object* instead of Value
as it always needs to return an object; allowing an arbitrary Value is a
massive foot gun.
This commit is contained in:
Linus Groh 2021-10-20 21:16:30 +01:00
parent 0881f8160f
commit 5832de62fe
99 changed files with 597 additions and 669 deletions
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11
Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp
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@ -40,7 +40,7 @@ BigIntConstructor::~BigIntConstructor()
}
// 21.2.1.1 BigInt ( value ), https://tc39.es/ecma262/#sec-bigint-constructor-number-value
Value BigIntConstructor::call()
ThrowCompletionOr<Value> BigIntConstructor::call()
{
auto& vm = this->vm();
auto& global_object = this->global_object();
@ -48,21 +48,20 @@ Value BigIntConstructor::call()
auto value = vm.argument(0);
// 2. Let prim be ? ToPrimitive(value, number).
auto primitive = TRY_OR_DISCARD(value.to_primitive(global_object, Value::PreferredType::Number));
auto primitive = TRY(value.to_primitive(global_object, Value::PreferredType::Number));
// 3. If Type(prim) is Number, return ? NumberToBigInt(prim).
if (primitive.is_number())
return number_to_bigint(global_object, primitive);
// 4. Otherwise, return ? ToBigInt(value).
return TRY_OR_DISCARD(value.to_bigint(global_object));
return TRY(value.to_bigint(global_object));
}
// 21.2.1.1 BigInt ( value ), https://tc39.es/ecma262/#sec-bigint-constructor-number-value
Value BigIntConstructor::construct(FunctionObject&)
ThrowCompletionOr<Object*> BigIntConstructor::construct(FunctionObject&)
{
vm().throw_exception<TypeError>(global_object(), ErrorType::NotAConstructor, "BigInt");
return {};
return vm().throw_completion<TypeError>(global_object(), ErrorType::NotAConstructor, "BigInt");
}
// 21.2.2.1 BigInt.asIntN ( bits, bigint ), https://tc39.es/ecma262/#sec-bigint.asintn