mirror of
				https://github.com/LadybirdBrowser/ladybird.git
				synced 2025-10-31 05:10:57 +00:00 
			
		
		
		
	 64513f3c23
			
		
	
	
		64513f3c23
		
	
	
	
	
		
			
			To make sure that everything is set up correctly in objects before we start adding properties to them, we split cell allocation into 3 steps: 1. Allocate a cell of appropriate size from the Heap 2. Call the C++ constructor on the cell 3. Call initialize() on the constructed object The job of initialize() is to define all the initial properties. Doing it in a second pass guarantees that the Object has a valid Shape and can find its own GlobalObject.
		
			
				
	
	
		
			72 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			72 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
 | |
|  * Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
 | |
|  * All rights reserved.
 | |
|  *
 | |
|  * Redistribution and use in source and binary forms, with or without
 | |
|  * modification, are permitted provided that the following conditions are met:
 | |
|  *
 | |
|  * 1. Redistributions of source code must retain the above copyright notice, this
 | |
|  *    list of conditions and the following disclaimer.
 | |
|  *
 | |
|  * 2. Redistributions in binary form must reproduce the above copyright notice,
 | |
|  *    this list of conditions and the following disclaimer in the documentation
 | |
|  *    and/or other materials provided with the distribution.
 | |
|  *
 | |
|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 | |
|  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 | |
|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 | |
|  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 | |
|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 | |
|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 | |
|  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 | |
|  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 | |
|  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 | |
|  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 | |
|  */
 | |
| 
 | |
| #include <LibJS/Interpreter.h>
 | |
| #include <LibJS/Runtime/Array.h>
 | |
| #include <LibJS/Runtime/Error.h>
 | |
| #include <LibJS/Runtime/GlobalObject.h>
 | |
| #include <LibJS/Runtime/ProxyConstructor.h>
 | |
| #include <LibJS/Runtime/ProxyObject.h>
 | |
| 
 | |
| namespace JS {
 | |
| 
 | |
| ProxyConstructor::ProxyConstructor(GlobalObject& global_object)
 | |
|     : NativeFunction("Proxy", *global_object.function_prototype())
 | |
| {
 | |
| }
 | |
| 
 | |
| void ProxyConstructor::initialize(Interpreter&, GlobalObject& global_object)
 | |
| {
 | |
|     define_property("prototype", global_object.proxy_prototype(), 0);
 | |
|     define_property("length", Value(2), Attribute::Configurable);
 | |
| }
 | |
| 
 | |
| ProxyConstructor::~ProxyConstructor()
 | |
| {
 | |
| }
 | |
| 
 | |
| Value ProxyConstructor::call(Interpreter& interpreter)
 | |
| {
 | |
|     return interpreter.throw_exception<TypeError>(ErrorType::ProxyCallWithNew);
 | |
| }
 | |
| 
 | |
| Value ProxyConstructor::construct(Interpreter& interpreter)
 | |
| {
 | |
|     if (interpreter.argument_count() < 2)
 | |
|         return interpreter.throw_exception<TypeError>(ErrorType::ProxyTwoArguments);
 | |
| 
 | |
|     auto target = interpreter.argument(0);
 | |
|     auto handler = interpreter.argument(1);
 | |
| 
 | |
|     if (!target.is_object())
 | |
|         return interpreter.throw_exception<TypeError>(ErrorType::ProxyConstructorBadType, "target", target.to_string_without_side_effects().characters());
 | |
|     if (!handler.is_object())
 | |
|         return interpreter.throw_exception<TypeError>(ErrorType::ProxyConstructorBadType, "handler", handler.to_string_without_side_effects().characters());
 | |
| 
 | |
|     return ProxyObject::create(global_object(), target.as_object(), handler.as_object());
 | |
| }
 | |
| 
 | |
| }
 |