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			74 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2021, Idan Horowitz <idan.horowitz@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include <LibJS/Runtime/AbstractOperations.h>
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| #include <LibJS/Runtime/Error.h>
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| #include <LibJS/Runtime/GlobalObject.h>
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| #include <LibJS/Runtime/IteratorOperations.h>
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| #include <LibJS/Runtime/Set.h>
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| #include <LibJS/Runtime/SetConstructor.h>
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| 
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| namespace JS {
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| 
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| SetConstructor::SetConstructor(GlobalObject& global_object)
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|     : NativeFunction(vm().names.Set.as_string(), *global_object.function_prototype())
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| {
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| }
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| 
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| void SetConstructor::initialize(GlobalObject& global_object)
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| {
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|     auto& vm = this->vm();
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|     NativeFunction::initialize(global_object);
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| 
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|     // 24.2.2.1 Set.prototype, https://tc39.es/ecma262/#sec-set.prototype
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|     define_direct_property(vm.names.prototype, global_object.set_prototype(), 0);
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| 
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|     define_native_accessor(*vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
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| 
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|     define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
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| }
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| 
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| SetConstructor::~SetConstructor()
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| {
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| }
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| 
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| // 24.2.1.1 Set ( [ iterable ] ), https://tc39.es/ecma262/#sec-set-iterable
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| ThrowCompletionOr<Value> SetConstructor::call()
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| {
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|     auto& vm = this->vm();
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|     return vm.throw_completion<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, vm.names.Set);
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| }
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| 
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| // 24.2.1.1 Set ( [ iterable ] ), https://tc39.es/ecma262/#sec-set-iterable
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| ThrowCompletionOr<Object*> SetConstructor::construct(FunctionObject& new_target)
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| {
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|     auto& vm = this->vm();
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|     auto& global_object = this->global_object();
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| 
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|     auto* set = TRY(ordinary_create_from_constructor<Set>(global_object, new_target, &GlobalObject::set_prototype));
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| 
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|     if (vm.argument(0).is_nullish())
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|         return set;
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| 
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|     auto adder = TRY(set->get(vm.names.add));
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|     if (!adder.is_function())
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|         return vm.throw_completion<TypeError>(global_object, ErrorType::NotAFunction, "'add' property of Set");
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| 
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|     (void)TRY(get_iterator_values(global_object, vm.argument(0), [&](Value iterator_value) -> Optional<Completion> {
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|         TRY(JS::call(global_object, adder.as_function(), set, iterator_value));
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|         return {};
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|     }));
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| 
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|     return set;
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| }
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| 
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| // 24.2.2.2 get Set [ @@species ], https://tc39.es/ecma262/#sec-get-set-@@species
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| JS_DEFINE_NATIVE_FUNCTION(SetConstructor::symbol_species_getter)
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| {
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|     return vm.this_value(global_object);
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| }
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| 
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| }
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