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		d8759d9656
		
	
	
	
	
		
			
			We were previously assuming that the input offsets and lengths were all in raw byte offsets into a UTF-8 string. While internally our String representation may be in UTF-8 from the external world it is seen as UTF-16, with code unit offsets passed through, and used as the returned length. Beforehand, the included test included in this commit would crash ladybird (and otherwise return wrong values). The implementation here is very inefficient, I am sure there is a much smarter way to write it so that we would not need a conversion from UTF-8 to a UTF-16 string (and then back again). Fixes: #20971
		
			
				
	
	
		
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			22 lines
		
	
	
	
		
			870 B
		
	
	
	
		
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| #import <DOM/ChildNode.idl>
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| #import <DOM/Element.idl>
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| #import <DOM/Node.idl>
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| 
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| // https://dom.spec.whatwg.org/#characterdata
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| [Exposed=Window]
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| interface CharacterData : Node {
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|     [LegacyNullToEmptyString] attribute DOMString data;
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|     [ImplementedAs=length_in_utf16_code_units] readonly attribute unsigned long length;
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| 
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|     DOMString substringData(unsigned long offset, unsigned long count);
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|     undefined appendData(DOMString data);
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|     undefined insertData(unsigned long offset, DOMString data);
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|     undefined deleteData(unsigned long offset, unsigned long count);
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|     undefined replaceData(unsigned long offset, unsigned long count, DOMString data);
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| 
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|     // https://dom.spec.whatwg.org/#interface-nondocumenttypechildnode
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|     readonly attribute Element? previousElementSibling;
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|     readonly attribute Element? nextElementSibling;
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| };
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| 
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| CharacterData includes ChildNode;
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