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LibJS: Implement the OrdinaryCreateFromConstructor() abstract operation

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Linus Groh 2021-06-19 22:34:48 +01:00 • committed by Andreas Kling
parent 500818e73d
commit df095afbcc
1 changed files with 12 additions and 0 deletions
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12
Userland/Libraries/LibJS/Runtime/AbstractOperations.h
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@ -8,6 +8,7 @@
#include <AK/Forward.h>
#include <LibJS/Forward.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Value.h>
namespace JS {
@ -20,4 +21,15 @@ Function* species_constructor(GlobalObject&, Object const&, Function& default_co
GlobalObject* get_function_realm(GlobalObject&, Function const&);
Object* get_prototype_from_constructor(GlobalObject&, Function const& constructor, Object* (GlobalObject::*intrinsic_default_prototype)());
// 10.1.13 OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ), https://tc39.es/ecma262/#sec-ordinarycreatefromconstructor
template<typename T, typename... Args>
T* ordinary_create_from_constructor(GlobalObject& global_object, Function const& constructor, Object* (GlobalObject::*intrinsic_default_prototype)(), Args&&... args)
{
auto& vm = global_object.vm();
auto* prototype = get_prototype_from_constructor(global_object, constructor, intrinsic_default_prototype);
if (vm.exception())
return nullptr;
return global_object.heap().allocate<T>(global_object, forward<Args>(args)..., *prototype);
}
}