RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 13:47:45 +00:00
Code Issues Activity Actions

LibJS: Add the remaining generator objects

Browse source 
- %GeneratorFunction%
- %GeneratorFunction.prototype%
- %GeneratorFunction.prototype.prototype%
- %Generator%.prototype
This commit is contained in:
Matthew Olsson 2021-06-15 00:04:08 -07:00 • committed by Linus Groh
parent b205c9814a
commit 22b17219ff
14 changed files with 302 additions and 67 deletions
Download patch file Download diff file Expand all files Collapse all files

26
Userland/Libraries/LibJS/Runtime/ScriptFunction.cpp
View file

@ -15,6 +15,7 @@
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/Error.h>
#include <LibJS/Runtime/GeneratorObject.h>
#include <LibJS/Runtime/GeneratorObjectPrototype.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/NativeFunction.h>
#include <LibJS/Runtime/ScriptFunction.h>
@ -36,7 +37,16 @@ static ScriptFunction* typed_this(VM& vm, GlobalObject& global_object)
ScriptFunction* ScriptFunction::create(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, ScopeObject* parent_scope, FunctionKind kind, bool is_strict, bool is_arrow_function)
{
return global_object.heap().allocate<ScriptFunction>(global_object, global_object, name, body, move(parameters), m_function_length, parent_scope, *global_object.function_prototype(), kind, is_strict, is_arrow_function);
Object* prototype = nullptr;
switch (kind) {
case FunctionKind::Regular:
prototype = global_object.function_prototype();
break;
case FunctionKind::Generator:
prototype = global_object.generator_function_prototype();
break;
}
return global_object.heap().allocate<ScriptFunction>(global_object, global_object, name, body, move(parameters), m_function_length, parent_scope, *prototype, kind, is_strict, is_arrow_function);
}
ScriptFunction::ScriptFunction(GlobalObject& global_object, const FlyString& name, const Statement& body, Vector<FunctionNode::Parameter> parameters, i32 m_function_length, ScopeObject* parent_scope, Object& prototype, FunctionKind kind, bool is_strict, bool is_arrow_function)
@ -57,8 +67,16 @@ void ScriptFunction::initialize(GlobalObject& global_object)
auto& vm = this->vm();
Function::initialize(global_object);
if (!m_is_arrow_function) {
Object* prototype = vm.heap().allocate<Object>(global_object, *global_object.new_script_function_prototype_object_shape());
prototype->define_property(vm.names.constructor, this, Attribute::Writable | Attribute::Configurable);
auto* prototype = vm.heap().allocate<Object>(global_object, *global_object.new_script_function_prototype_object_shape());
switch (m_kind) {
case FunctionKind::Regular:
prototype->define_property(vm.names.constructor, this, Attribute::Writable | Attribute::Configurable);
break;
case FunctionKind::Generator:
// prototype is "g1.prototype" in figure-2 (https://tc39.es/ecma262/img/figure-2.png)
prototype->set_prototype(global_object.generator_object_prototype());
break;
}
define_property(vm.names.prototype, prototype, Attribute::Writable);
}
define_native_property(vm.names.length, length_getter, {}, Attribute::Configurable);
@ -205,7 +223,7 @@ Value ScriptFunction::call()
Value ScriptFunction::construct(Function&)
{
if (m_is_arrow_function) {
if (m_is_arrow_function || m_kind == FunctionKind::Generator) {
vm().throw_exception<TypeError>(global_object(), ErrorType::NotAConstructor, m_name);
return {};
}