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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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21
Userland/Libraries/LibJS/Runtime/RegExpConstructor.cpp
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@ -34,7 +34,7 @@ RegExpConstructor::~RegExpConstructor()
}
// 22.2.3.1 RegExp ( pattern, flags ), https://tc39.es/ecma262/#sec-regexp-pattern-flags
Value RegExpConstructor::call()
ThrowCompletionOr<Value> RegExpConstructor::call()
{
auto& vm = this->vm();
auto& global_object = this->global_object();
@ -42,19 +42,19 @@ Value RegExpConstructor::call()
auto pattern = vm.argument(0);
auto flags = vm.argument(1);
bool pattern_is_regexp = TRY_OR_DISCARD(pattern.is_regexp(global_object));
bool pattern_is_regexp = TRY(pattern.is_regexp(global_object));
if (pattern_is_regexp && flags.is_undefined()) {
auto pattern_constructor = TRY_OR_DISCARD(pattern.as_object().get(vm.names.constructor));
auto pattern_constructor = TRY(pattern.as_object().get(vm.names.constructor));
if (same_value(this, pattern_constructor))
return pattern;
}
return construct(*this);
return TRY(construct(*this));
}
// 22.2.3.1 RegExp ( pattern, flags ), https://tc39.es/ecma262/#sec-regexp-pattern-flags
Value RegExpConstructor::construct(FunctionObject&)
ThrowCompletionOr<Object*> RegExpConstructor::construct(FunctionObject&)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
@ -62,7 +62,7 @@ Value RegExpConstructor::construct(FunctionObject&)
auto pattern = vm.argument(0);
auto flags = vm.argument(1);
bool pattern_is_regexp = TRY_OR_DISCARD(pattern.is_regexp(global_object));
bool pattern_is_regexp = TRY(pattern.is_regexp(global_object));
Value pattern_value;
Value flags_value;
@ -76,10 +76,10 @@ Value RegExpConstructor::construct(FunctionObject&)
else
flags_value = flags;
} else if (pattern_is_regexp) {
pattern_value = TRY_OR_DISCARD(pattern.as_object().get(vm.names.source));
pattern_value = TRY(pattern.as_object().get(vm.names.source));
if (flags.is_undefined()) {
flags_value = TRY_OR_DISCARD(pattern.as_object().get(vm.names.flags));
flags_value = TRY(pattern.as_object().get(vm.names.flags));
} else {
flags_value = flags;
}
@ -88,7 +88,10 @@ Value RegExpConstructor::construct(FunctionObject&)
flags_value = flags;
}
return regexp_create(global_object, pattern_value, flags_value);
auto* regexp = regexp_create(global_object, pattern_value, flags_value);
if (auto* exception = vm.exception())
return throw_completion(exception->value());
return regexp;
}
// 22.2.4.2 get RegExp [ @@species ], https://tc39.es/ecma262/#sec-get-regexp-@@species