| // Copyright 2016 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"); |
| |
| function instantiate(sig, body) { |
| var module = new Array(); |
| module = module.concat([ |
| // -- signatures |
| kDeclSignatures, 1, |
| ]); |
| module = module.concat(sig); |
| module = module.concat([ |
| // -- functions |
| kDeclFunctions, 1, |
| 0, // decl flags |
| 0, 0, // signature |
| body.length, 0, // body size |
| ]); |
| module = module.concat(body); |
| module = module.concat([ |
| // -- declare start function |
| kDeclStartFunction, |
| 0 |
| ]); |
| |
| var data = bytes.apply(this, module); |
| print(module); |
| print(data instanceof ArrayBuffer); |
| print(data.byteLength); |
| return _WASMEXP_.instantiateModule(data); |
| } |
| |
| function assertFails(sig, body) { |
| try { |
| var module = instantiate(sig, body); |
| print("expected failure, but passes"); |
| assertFalse(true); |
| } catch (expected) { |
| print("ok: " + expected); |
| } |
| } |
| |
| function assertVerifies(sig, body) { |
| var module = instantiate(sig, body); |
| assertFalse(module === undefined); |
| assertFalse(module === null); |
| assertFalse(module === 0); |
| assertEquals("object", typeof module); |
| return module; |
| } |
| |
| assertVerifies([0, kAstStmt], [kExprNop]); |
| assertVerifies([0, kAstI32], [kExprI8Const, 0]); |
| |
| // Arguments aren't allow to start functions. |
| assertFails([1, kAstI32, kAstI32], [kExprGetLocal, 0]); |
| assertFails([2, kAstI32, kAstI32, kAstF32], [kExprGetLocal, 0]); |
| assertFails([3, kAstI32, kAstI32, kAstF32, kAstF64], [kExprGetLocal, 0]); |
| |
| (function testInvalidIndex() { |
| var kBodySize = 1; |
| var data = bytes( |
| // -- signatures |
| kDeclSignatures, 1, |
| 0, kAstStmt, |
| // -- functions |
| kDeclFunctions, 1, |
| 0, // decl flags |
| 0, 0, // signature |
| kBodySize, 0, // body size |
| kExprNop, // body |
| // -- declare start function |
| kDeclStartFunction, |
| 1 |
| ); |
| |
| assertThrows(function() { _WASMEXP_.instantiateModule(data); }); |
| })(); |
| |
| |
| (function testTwoStartFuncs() { |
| var kBodySize = 1; |
| var data = bytes( |
| // -- signatures |
| kDeclSignatures, 1, |
| 0, kAstStmt, |
| // -- functions |
| kDeclFunctions, 1, |
| 0, // decl flags |
| 0, 0, // signature |
| kBodySize, 0, // body size |
| kExprNop, // body |
| // -- declare start function |
| kDeclStartFunction, |
| 0, |
| // -- declare start function |
| kDeclStartFunction, |
| 0 |
| ); |
| |
| assertThrows(function() { _WASMEXP_.instantiateModule(data); }); |
| })(); |
| |
| |
| (function testRun() { |
| var kBodySize = 6; |
| |
| var data = bytes( |
| kDeclMemory, |
| 12, 12, 1, // memory |
| // -- signatures |
| kDeclSignatures, 1, |
| 0, kAstStmt, |
| // -- start function |
| kDeclFunctions, 1, |
| 0, // decl flags |
| 0, 0, // signature |
| kBodySize, 0, // code size |
| // -- start body |
| kExprI32StoreMem, 0, kExprI8Const, 0, kExprI8Const, 77, |
| // -- declare start function |
| kDeclStartFunction, |
| 0 |
| ); |
| |
| var module = _WASMEXP_.instantiateModule(data); |
| var memory = module.memory; |
| var view = new Int8Array(memory); |
| assertEquals(77, view[0]); |
| })(); |
| |
| (function testStartFFI() { |
| var kBodySize = 2; |
| var kNameOffset = 4 + 9 + 7 + 3; |
| |
| var data = bytes( |
| // -- signatures |
| kDeclSignatures, 1, |
| 0, kAstStmt, |
| // -- imported function |
| kDeclFunctions, 2, |
| kDeclFunctionImport | kDeclFunctionName, // decl flags |
| 0, 0, // signature |
| kNameOffset, 0, 0, 0, |
| // -- start function |
| 0, // decl flags |
| 0, 0, // signature |
| kBodySize, 0, // code size |
| // -- start body |
| kExprCallFunction, 0, |
| // -- declare start function |
| kDeclStartFunction, |
| 1, |
| kDeclEnd, |
| 'f', 'o', 'o', 0 |
| ); |
| |
| var ranned = false; |
| var ffi = new Object(); |
| ffi.foo = function() { |
| print("we ranned at stert!"); |
| ranned = true; |
| } |
| var module = _WASMEXP_.instantiateModule(data, ffi); |
| var memory = module.memory; |
| var view = new Int8Array(memory); |
| assertTrue(ranned); |
| })(); |