118 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Haxe
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			3.6 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 cpp;
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#if macro
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import haxe.macro.Context;
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import haxe.macro.Type;
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import haxe.macro.Expr;
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#end
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@:noPackageRestrict
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class Prime {
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	#if (!macro && cpp)
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	public static function _loadPrime(lib:String, prim:String, signature:String, quietFail = false):Dynamic {
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		var factory:Callable<ConstCharStar->Object> = untyped __global__.__hxcpp_cast_get_proc_address(lib, prim + "__prime", quietFail);
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		if (factory != null) {
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			var func:Dynamic = factory.call(signature);
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			if (func == null && !quietFail)
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				throw '$prim does not have signature $signature';
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			return func;
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		}
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		return null;
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	}
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	#end
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	#if (macro)
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	static function codeToType(code:String, forCpp:Bool):String {
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		if (code == "c" && !forCpp)
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			throw "const char * type only supported in cpp mode";
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		switch (code) {
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			case "b":
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				return "Bool";
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			case "i":
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				return "Int";
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			case "d":
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				return "Float";
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			case "s":
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				return "String";
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			case "f":
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				return forCpp ? "cpp.Float32" : "Float";
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			case "o":
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				return forCpp ? "cpp.Object" : "Dynamic";
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			case "v":
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				return forCpp ? "cpp.Void" : "Dynamic";
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			case "c":
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				return "cpp.ConstCharStar";
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			default:
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				throw "Unknown signature type :" + code;
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		}
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	}
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	#end
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	public static function nekoInit(inModuleName:String):Bool {
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		#if neko
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		var init = neko.Lib.load(inModuleName, "neko_init", 5);
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		if (init != null) {
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			init(function(s) return new String(s), function(len:Int) {
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				var r = [];
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				if (len > 0)
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					r[len - 1] = null;
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				return r;
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			}, null, true, false);
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			return true;
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		}
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		#end
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		return false;
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	}
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	public static macro function load(inModule:String, inName:String, inSig:String, inAllowFail:Bool = false) {
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		var parts = inSig.split("");
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		if (parts.length < 1)
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			throw "Invalid function signature " + inSig;
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		var argCount = parts.length - 1;
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		var cppiaMode = Context.defined("cppia");
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		var cppMode = Context.defined("cpp") && !cppiaMode;
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		var typeString = parts.length == 1 ? "Void" : codeToType(parts.shift(), cppMode);
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		for (p in parts)
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			typeString += "->" + codeToType(p, cppMode);
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		if (cppMode) {
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			typeString = "cpp.Callable<" + typeString + ">";
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			var expr = 'new $typeString(cpp.Prime._loadPrime("$inModule","$inName","$inSig",$inAllowFail))';
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			return Context.parse(expr, Context.currentPos());
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		} else {
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			if (argCount > 5)
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				argCount = -1;
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			var lazy = inAllowFail ? "loadLazy" : "load";
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			var lib = cppiaMode ? "cpp" : "neko";
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			var expr = 'new cpp.Callable<$typeString>($lib.Lib.$lazy("$inModule","$inName",$argCount))';
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			return Context.parse(expr, Context.currentPos());
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		}
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	}
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}
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