76 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Haxe
		
	
	
	
	
	
			
		
		
	
	
			76 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Haxe
		
	
	
	
	
	
/*
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 * Copyright (C)2005-2019 Haxe Foundation
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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 * DEALINGS IN THE SOFTWARE.
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 */
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package haxe;
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/**
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	Log primarily provides the `trace()` method, which is invoked upon a call to
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	`trace()` in Haxe code.
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**/
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class Log {
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	/**
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		Format the output of `trace` before printing it.
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	**/
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	public static function formatOutput(v:Dynamic, infos:PosInfos):String {
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		var str = Std.string(v);
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		if (infos == null)
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			return str;
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		var pstr = infos.fileName + ":" + infos.lineNumber;
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		if (infos.customParams != null)
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			for (v in infos.customParams)
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				str += ", " + Std.string(v);
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		return pstr + ": " + str;
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	}
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	/**
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		Outputs `v` in a platform-dependent way.
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		The second parameter `infos` is injected by the compiler and contains
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		information about the position where the `trace()` call was made.
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		This method can be rebound to a custom function:
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			var oldTrace = haxe.Log.trace; // store old function
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			haxe.Log.trace = function(v, ?infos) {
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			  // handle trace
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			}
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			...
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			haxe.Log.trace = oldTrace;
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		If it is bound to null, subsequent calls to `trace()` will cause an
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		exception.
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	**/
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	public static dynamic function trace(v:Dynamic, ?infos:PosInfos):Void {
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		var str = formatOutput(v, infos);
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		#if js
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		if (js.Syntax.typeof(untyped console) != "undefined" && (untyped console).log != null)
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			(untyped console).log(str);
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		#elseif lua
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		untyped __define_feature__("use._hx_print", _hx_print(str));
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		#elseif sys
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		Sys.println(str);
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		#else
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		throw new haxe.exceptions.NotImplementedException()
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		#end
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	}
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}
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