| // 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-constants.js"); |
| |
| var kReturnValue = 117; |
| |
| var kBodySize = 2; |
| var kNameOffset = 19 + kBodySize + 1; |
| |
| var data = bytes( |
| // -- memory |
| kDeclMemory, |
| 10, 10, 1, |
| // -- signatures |
| kDeclSignatures, 1, |
| 0, kAstI32, // signature: void -> int |
| // -- main function |
| kDeclFunctions, 1, |
| kDeclFunctionName | kDeclFunctionExport, |
| 0, 0, // signature index |
| kNameOffset, 0, 0, 0, // name offset |
| kBodySize, 0, // body size |
| // -- body |
| kExprI8Const, // -- |
| kReturnValue, // -- |
| kDeclEnd, |
| 'm', 'a', 'i', 'n', 0 // name |
| ); |
| |
| var module = _WASMEXP_.instantiateModule(data); |
| |
| // 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.memory; |
| assertFalse(mem === undefined); |
| assertFalse(mem === null); |
| assertFalse(mem === 0); |
| assertEquals("object", typeof mem); |
| assertTrue(mem instanceof ArrayBuffer); |
| for (var i = 0; i < 4; i++) { |
| module.memory = 0; // should be ignored |
| assertEquals(mem, module.memory); |
| } |
| |
| assertEquals(1024, module.memory.byteLength); |
| |
| // Check the properties of the main function. |
| assertFalse(module.main === undefined); |
| assertFalse(module.main === null); |
| assertFalse(module.main === 0); |
| assertEquals("function", typeof module.main); |
| |
| assertEquals(kReturnValue, module.main()); |