Chromium Code Reviews Chromium Code Reviews
Issue 1744713003:
[wasm] Add an export table. (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master| OLD | NEW |
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| (Empty) | |
| 1 // Copyright 2015 the V8 project authors. All rights reserved. | |
|
JF
2016/02/27 00:59:48
2016
| |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Flags: --expose-wasm | |
| 6 | |
| 7 load("test/mjsunit/wasm/wasm-constants.js"); | |
| 8 | |
| 9 (function testExportedMain() { | |
| 10 var kBodySize = 3; | |
| 11 var kReturnValue = 99; | |
| 12 var kNameMainOffset = 4 + 7 + kBodySize + 8 + 1; | |
| 13 | |
| 14 var data = bytes( | |
| 15 // signatures | |
| 16 kDeclSignatures, 1, | |
| 17 0, kAstI32, // void -> i32 | |
| 18 // -- main function | |
| 19 kDeclFunctions, | |
| 20 1, | |
| 21 0, // decl flags | |
| 22 0, 0, // signature index | |
| 23 kBodySize, 0, | |
| 24 // main body | |
| 25 kExprReturn, | |
| 26 kExprI8Const, | |
| 27 kReturnValue, | |
| 28 // exports | |
| 29 kDeclExportTable, | |
| 30 1, | |
| 31 0, 0, // func index index | |
| 32 kNameMainOffset, 0, 0, 0, // function name offset | |
| 33 // names | |
| 34 kDeclEnd, | |
| 35 'm', 'a', 'i', 'n', 0 // -- | |
| 36 ); | |
| 37 | |
| 38 var ffi = new Object(); | |
| 39 var module = _WASMEXP_.instantiateModule(data, ffi); | |
| 40 | |
| 41 assertEquals("object", typeof module.exports); | |
| 42 assertEquals("function", typeof module.exports.main); | |
| 43 | |
| 44 assertEquals(kReturnValue, module.exports.main()); | |
| 45 })(); | |
| 46 | |
| 47 (function testExportedTwice() { | |
| 48 var kBodySize = 3; | |
| 49 var kReturnValue = 99; | |
| 50 var kNameMainOffset = 4 + 7 + kBodySize + 14 + 1; | |
| 51 var kNameFooOffset = kNameMainOffset + 5; | |
| 52 | |
| 53 var data = bytes( | |
| 54 // signatures | |
| 55 kDeclSignatures, 1, | |
| 56 0, kAstI32, // void -> i32 | |
| 57 // -- main function | |
| 58 kDeclFunctions, | |
| 59 1, | |
| 60 0, // decl flags | |
| 61 0, 0, // signature index | |
| 62 kBodySize, 0, | |
| 63 // main body | |
| 64 kExprReturn, | |
| 65 kExprI8Const, | |
| 66 kReturnValue, | |
| 67 // exports | |
| 68 kDeclExportTable, | |
| 69 2, | |
| 70 0, 0, // func index index | |
| 71 kNameMainOffset, 0, 0, 0, // function name offset | |
| 72 0, 0, // func index index | |
| 73 kNameFooOffset, 0, 0, 0, // function name offset | |
| 74 // names | |
| 75 kDeclEnd, | |
| 76 'b', 'l', 'a', 'h', 0, // -- | |
| 77 'f', 'o', 'o', 0 // -- | |
| 78 ); | |
| 79 | |
| 80 var ffi = new Object(); | |
| 81 var module = _WASMEXP_.instantiateModule(data, ffi); | |
| 82 | |
| 83 assertEquals("object", typeof module.exports); | |
| 84 assertEquals("function", typeof module.exports.blah); | |
| 85 assertEquals("function", typeof module.exports.foo); | |
| 86 | |
| 87 assertEquals(kReturnValue, module.exports.blah()); | |
| 88 assertEquals(kReturnValue, module.exports.foo()); | |
| 89 })(); | |
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