// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Flags: --expose-wasm load("test/mjsunit/wasm/wasm-module-builder.js"); function assertModule(module, memsize) { // Check the module exists. assertFalse(module === undefined); assertFalse(module === null); assertFalse(module === 0); assertEquals("object", typeof module); // Check the memory is an ArrayBuffer. var mem = module.exports.memory; assertFalse(mem === undefined); assertFalse(mem === null); assertFalse(mem === 0); assertEquals("object", typeof mem); assertTrue(mem instanceof WebAssembly.Memory); var buf = mem.buffer; assertTrue(buf instanceof ArrayBuffer); assertEquals(memsize, buf.byteLength); for (var i = 0; i < 4; i++) { module.exports.memory = 0; // should be ignored mem.buffer = 0; // should be ignored assertSame(mem, module.exports.memory); assertSame(buf, mem.buffer); } } function assertFunction(module, func) { assertEquals("object", typeof module.exports); var exp = module.exports[func]; assertFalse(exp === undefined); assertFalse(exp === null); assertFalse(exp === 0); assertEquals("function", typeof exp); return exp; } (function SubTest() { var builder = new WasmModuleBuilder(); builder.addMemory(1, 1, true); builder.addFunction("sub", kSig_i_ii) .addBody([ kExprLocalGet, 0, // -- kExprLocalGet, 1, // -- kExprI32Sub, // -- ]) .exportFunc() var module = builder.instantiate(); assertModule(module, kPageSize); // Check the properties of the sub function. var sub = assertFunction(module, "sub"); assertEquals(-55, sub(33, 88)); assertEquals(-55555, sub(33333, 88888)); assertEquals(-5555555, sub(3333333, 8888888)); })(); (function NopTest() { var builder = new WasmModuleBuilder(); var kPages = 2; builder.addMemory(kPages, kPages, true); builder.addFunction("nop", kSig_v_v) .addBody([kExprNop]) .exportFunc(); var module = builder.instantiate(); assertModule(module, kPageSize * kPages); var nop = assertFunction(module, "nop"); assertEquals(undefined, nop()); })(); (function testLt() { var builder = new WasmModuleBuilder(); var kPages = 3; builder.addMemory(kPages, kPages, true); builder.addFunction("flt", kSig_i_dd) .addBody([ kExprLocalGet, 0, // -- kExprLocalGet, 1, // -- kExprF64Lt // -- ]) // -- .exportFunc(); var module = builder.instantiate(); assertModule(module, kPageSize * kPages); var flt = assertFunction(module, "flt"); assertEquals(1, flt(-2, -1)); assertEquals(0, flt(7.3, 7.1)); assertEquals(1, flt(7.1, 7.3)); })();