michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: const ASM_OK_STRING = "successfully compiled asm.js code";
michael@0: const ASM_TYPE_FAIL_STRING = "asm.js type error:";
michael@0: const ASM_DIRECTIVE_FAIL_STRING = "\"use asm\" is only meaningful in the Directive Prologue of a function body";
michael@0: 
michael@0: const USE_ASM = '"use asm";';
michael@0: const HEAP_IMPORTS = "const i8=new glob.Int8Array(b);var u8=new glob.Uint8Array(b);"+
michael@0:                      "const i16=new glob.Int16Array(b);var u16=new glob.Uint16Array(b);"+
michael@0:                      "const i32=new glob.Int32Array(b);var u32=new glob.Uint32Array(b);"+
michael@0:                      "const f32=new glob.Float32Array(b);var f64=new glob.Float64Array(b);";
michael@0: const BUF_64KB = new ArrayBuffer(64 * 1024);
michael@0: 
michael@0: function asmCompile()
michael@0: {
michael@0:     var f = Function.apply(null, arguments);
michael@0:     assertEq(!isAsmJSCompilationAvailable() || isAsmJSModule(f), true);
michael@0:     return f;
michael@0: }
michael@0: 
michael@0: function asmCompileCached()
michael@0: {
michael@0:     if (!isAsmJSCompilationAvailable())
michael@0:         return Function.apply(null, arguments);
michael@0: 
michael@0:     if (!isCachingEnabled()) {
michael@0:         var f = Function.apply(null, arguments);
michael@0:         assertEq(isAsmJSModule(f), true);
michael@0:         return f;
michael@0:     }
michael@0: 
michael@0:     var quotedArgs = [];
michael@0:     for (var i = 0; i < arguments.length; i++)
michael@0:         quotedArgs.push("'" + arguments[i] + "'");
michael@0:     var code = "setCachingEnabled(true); var f = new Function(" + quotedArgs.join(',') + ");assertEq(isAsmJSModule(f), true);";
michael@0:     nestedShell("--js-cache", "--execute=" + code);
michael@0: 
michael@0:     var f = Function.apply(null, arguments);
michael@0:     assertEq(isAsmJSModuleLoadedFromCache(f), true);
michael@0:     return f;
michael@0: }
michael@0: 
michael@0: function assertAsmDirectiveFail(str)
michael@0: {
michael@0:     if (!isAsmJSCompilationAvailable())
michael@0:         return;
michael@0: 
michael@0:     // Turn on warnings-as-errors
michael@0:     var oldOpts = options("werror");
michael@0:     assertEq(oldOpts.indexOf("werror"), -1);
michael@0: 
michael@0:     // Verify an error is thrown
michael@0:     var caught = false;
michael@0:     try {
michael@0:         eval(str);
michael@0:     } catch (e) {
michael@0:         if ((''+e).indexOf(ASM_DIRECTIVE_FAIL_STRING) == -1)
michael@0:             throw new Error("Didn't catch the expected directive failure error; instead caught: " + e + "\nStack: " + new Error().stack);
michael@0:         caught = true;
michael@0:     }
michael@0:     if (!caught)
michael@0:         throw new Error("Didn't catch the directive failure error");
michael@0: 
michael@0:     // Turn warnings-as-errors back off
michael@0:     options("werror");
michael@0: }
michael@0: 
michael@0: function assertAsmTypeFail()
michael@0: {
michael@0:     if (!isAsmJSCompilationAvailable())
michael@0:         return;
michael@0: 
michael@0:     // Verify no error is thrown with warnings off
michael@0:     Function.apply(null, arguments);
michael@0: 
michael@0:     // Turn on warnings-as-errors
michael@0:     var oldOpts = options("werror");
michael@0:     assertEq(oldOpts.indexOf("werror"), -1);
michael@0: 
michael@0:     // Verify an error is thrown
michael@0:     var caught = false;
michael@0:     try {
michael@0:         Function.apply(null, arguments);
michael@0:     } catch (e) {
michael@0:         if ((''+e).indexOf(ASM_TYPE_FAIL_STRING) == -1)
michael@0:             throw new Error("Didn't catch the expected type failure error; instead caught: " + e + "\nStack: " + new Error().stack);
michael@0:         caught = true;
michael@0:     }
michael@0:     if (!caught)
michael@0:         throw new Error("Didn't catch the type failure error");
michael@0: 
michael@0:     // Turn warnings-as-errors back off
michael@0:     options("werror");
michael@0: }
michael@0: 
michael@0: function assertAsmLinkFail(f)
michael@0: {
michael@0:     if (!isAsmJSCompilationAvailable())
michael@0:         return;
michael@0: 
michael@0:     assertEq(isAsmJSModule(f), true);
michael@0: 
michael@0:     // Verify no error is thrown with warnings off
michael@0:     var ret = f.apply(null, Array.slice(arguments, 1));
michael@0: 
michael@0:     assertEq(isAsmJSFunction(ret), false);
michael@0:     if (typeof ret === 'object')
michael@0:         for (f of ret)
michael@0:             assertEq(isAsmJSFunction(f), false);
michael@0: 
michael@0:     // Turn on warnings-as-errors
michael@0:     var oldOpts = options("werror");
michael@0:     assertEq(oldOpts.indexOf("werror"), -1);
michael@0: 
michael@0:     // Verify an error is thrown
michael@0:     var caught = false;
michael@0:     try {
michael@0:         f.apply(null, Array.slice(arguments, 1));
michael@0:     } catch (e) {
michael@0:         // Arbitrary code an run in the GetProperty, so don't assert any
michael@0:         // particular string
michael@0:         caught = true;
michael@0:     }
michael@0:     if (!caught)
michael@0:         throw new Error("Didn't catch the link failure error");
michael@0: 
michael@0:     // Turn warnings-as-errors back off
michael@0:     options("werror");
michael@0: }
michael@0: 
michael@0: // Linking should throw an exception even without warnings-as-errors
michael@0: function assertAsmLinkAlwaysFail(f)
michael@0: {
michael@0:     var caught = false;
michael@0:     try {
michael@0:         f.apply(null, Array.slice(arguments, 1));
michael@0:     } catch (e) {
michael@0:         caught = true;
michael@0:     }
michael@0:     if (!caught)
michael@0:         throw new Error("Didn't catch the link failure error");
michael@0: 
michael@0:     // Turn on warnings-as-errors
michael@0:     var oldOpts = options("werror");
michael@0:     assertEq(oldOpts.indexOf("werror"), -1);
michael@0: 
michael@0:     // Verify an error is thrown
michael@0:     var caught = false;
michael@0:     try {
michael@0:         f.apply(null, Array.slice(arguments, 1));
michael@0:     } catch (e) {
michael@0:         caught = true;
michael@0:     }
michael@0:     if (!caught)
michael@0:         throw new Error("Didn't catch the link failure error");
michael@0: 
michael@0:     // Turn warnings-as-errors back off
michael@0:     options("werror");
michael@0: }
michael@0: 
michael@0: // Linking should throw a warning-as-error but otherwise run fine
michael@0: function asmLink(f)
michael@0: {
michael@0:     if (!isAsmJSCompilationAvailable())
michael@0:         return f.apply(null, Array.slice(arguments, 1));
michael@0: 
michael@0:     // Turn on warnings-as-errors
michael@0:     var oldOpts = options("werror");
michael@0:     assertEq(oldOpts.indexOf("werror"), -1);
michael@0: 
michael@0:     var ret = f.apply(null, Array.slice(arguments, 1));
michael@0: 
michael@0:     // Turn warnings-as-errors back off
michael@0:     options("werror");
michael@0: 
michael@0:     return ret;
michael@0: }