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	 af51dc105a
			
		
	
	
		af51dc105a
		
	
	
	
	
		
			
			To allow implementing the DOM class hierarchy in JS bindings, this patch adds an inherits() function that can be used to ask an Object if it inherits from a specific C++ class (by name). The necessary overrides are baked into each Object subclass by the new JS_OBJECT macro, which works similarly to C_OBJECT in LibCore. Thanks to @Dexesttp for suggesting this approach. :^)
		
			
				
	
	
		
			57 lines
		
	
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			57 lines
		
	
	
	
		
			2.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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|  * All rights reserved.
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|  *
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|  * Redistribution and use in source and binary forms, with or without
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|  * modification, are permitted provided that the following conditions are met:
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|  *
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|  * 1. Redistributions of source code must retain the above copyright notice, this
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|  *    list of conditions and the following disclaimer.
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|  *
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|  * 2. Redistributions in binary form must reproduce the above copyright notice,
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|  *    this list of conditions and the following disclaimer in the documentation
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|  *    and/or other materials provided with the distribution.
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|  *
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|  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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|  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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|  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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|  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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|  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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|  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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|  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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|  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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|  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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|  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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|  */
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| 
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| #pragma once
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| 
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| #include <LibJS/Runtime/Object.h>
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| 
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| namespace JS {
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| 
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| class Uint8ClampedArray final : public Object {
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|     JS_OBJECT(Uint8ClampedArray, Object);
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| 
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| public:
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|     static Uint8ClampedArray* create(GlobalObject&, u32 length);
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| 
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|     Uint8ClampedArray(u32 length, Object& prototype);
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|     virtual ~Uint8ClampedArray() override;
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| 
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|     i32 length() const { return m_length; }
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| 
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|     virtual bool put_by_index(u32 property_index, Value value) override;
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|     virtual Value get_by_index(u32 property_index) const override;
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| 
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|     u8* data() { return m_data; }
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|     const u8* data() const { return m_data; }
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| 
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| private:
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|     JS_DECLARE_NATIVE_GETTER(length_getter);
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| 
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|     u8* m_data { nullptr };
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|     u32 m_length { 0 };
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| };
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| 
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| }
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