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LibJS: Implement the RegExpAlloc AO

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This commit is contained in:
Linus Groh 2022-10-16 14:57:29 +02:00
parent db31c22491
commit 1da66b5879
4 changed files with 28 additions and 10 deletions
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23
Userland/Libraries/LibJS/Runtime/RegExpObject.cpp
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@ -5,8 +5,10 @@
*/
#include <AK/Function.h>
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/PrimitiveString.h>
#include <LibJS/Runtime/RegExpConstructor.h>
#include <LibJS/Runtime/RegExpObject.h>
#include <LibJS/Runtime/StringPrototype.h>
#include <LibJS/Runtime/Value.h>
@ -154,7 +156,7 @@ void RegExpObject::initialize(Realm& realm)
}
// 22.2.3.2.2 RegExpInitialize ( obj, pattern, flags ), https://tc39.es/ecma262/#sec-regexpinitialize
ThrowCompletionOr<RegExpObject*> RegExpObject::regexp_initialize(VM& vm, Value pattern, Value flags)
ThrowCompletionOr<NonnullGCPtr<RegExpObject>> RegExpObject::regexp_initialize(VM& vm, Value pattern, Value flags)
{
String f;
if (flags.is_undefined()) {
@ -190,7 +192,7 @@ ThrowCompletionOr<RegExpObject*> RegExpObject::regexp_initialize(VM& vm, Value p
TRY(set(vm.names.lastIndex, Value(0), Object::ShouldThrowExceptions::Yes));
return this;
return NonnullGCPtr { *this };
}
// 22.2.3.2.5 EscapeRegExpPattern ( P, F ), https://tc39.es/ecma262/#sec-escaperegexppattern
@ -203,11 +205,24 @@ String RegExpObject::escape_regexp_pattern() const
}
// 22.2.3.2.4 RegExpCreate ( P, F ), https://tc39.es/ecma262/#sec-regexpcreate
ThrowCompletionOr<RegExpObject*> regexp_create(VM& vm, Value pattern, Value flags)
ThrowCompletionOr<NonnullGCPtr<RegExpObject>> regexp_create(VM& vm, Value pattern, Value flags)
{
auto& realm = *vm.current_realm();
auto* regexp_object = RegExpObject::create(realm);
auto regexp_object = MUST(regexp_alloc(vm, *realm.intrinsics().regexp_constructor()));
return TRY(regexp_object->regexp_initialize(vm, pattern, flags));
}
// 22.2.3.2 RegExpAlloc ( newTarget ), https://tc39.es/ecma262/#sec-regexpalloc
ThrowCompletionOr<NonnullGCPtr<RegExpObject>> regexp_alloc(VM& vm, FunctionObject& new_target)
{
// 1. Let obj be ? OrdinaryCreateFromConstructor(newTarget, "%RegExp.prototype%", « [[OriginalSource]], [[OriginalFlags]], [[RegExpRecord]], [[RegExpMatcher]] »).
auto* regexp_object = TRY(ordinary_create_from_constructor<RegExpObject>(vm, new_target, &Intrinsics::regexp_prototype));
// 2. Perform ! DefinePropertyOrThrow(obj, "lastIndex", PropertyDescriptor { [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }).
MUST(regexp_object->define_property_or_throw(vm.names.lastIndex, PropertyDescriptor { .writable = true, .enumerable = false, .configurable = false }));
// 3. Return obj.
return NonnullGCPtr { *regexp_object };
}
}