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| 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 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-debug-as debug |
| 6 // Test the mirror object for functions. |
| 7 |
| 8 function *generator(f) { |
| 9 "use strict"; |
| 10 yield; |
| 11 f(); |
| 12 yield; |
| 13 } |
| 14 |
| 15 function MirrorRefCache(json_refs) { |
| 16 var tmp = eval('(' + json_refs + ')'); |
| 17 this.refs_ = []; |
| 18 for (var i = 0; i < tmp.length; i++) { |
| 19 this.refs_[tmp[i].handle] = tmp[i]; |
| 20 } |
| 21 } |
| 22 |
| 23 MirrorRefCache.prototype.lookup = function(handle) { |
| 24 return this.refs_[handle]; |
| 25 } |
| 26 |
| 27 function TestGeneratorMirror(g, test) { |
| 28 // Create mirror and JSON representation. |
| 29 var mirror = debug.MakeMirror(g); |
| 30 var serializer = debug.MakeMirrorSerializer(); |
| 31 var json = JSON.stringify(serializer.serializeValue(mirror)); |
| 32 var refs = new MirrorRefCache( |
| 33 JSON.stringify(serializer.serializeReferencedObjects())); |
| 34 |
| 35 // Check the mirror hierachy. |
| 36 assertTrue(mirror instanceof debug.Mirror); |
| 37 assertTrue(mirror instanceof debug.ValueMirror); |
| 38 assertTrue(mirror instanceof debug.ObjectMirror); |
| 39 assertTrue(mirror instanceof debug.GeneratorMirror); |
| 40 |
| 41 // Check the mirror properties. |
| 42 assertTrue(mirror.isGenerator()); |
| 43 assertEquals('generator', mirror.type()); |
| 44 assertFalse(mirror.isPrimitive()); |
| 45 assertEquals('Generator', mirror.className()); |
| 46 |
| 47 assertTrue(mirror.receiver().isUndefined()); |
| 48 assertEquals(generator, mirror.func().value()); |
| 49 |
| 50 test(mirror); |
| 51 } |
| 52 |
| 53 var iter = generator(function () { |
| 54 assertEquals('running', debug.MakeMirror(iter).status()); |
| 55 }) |
| 56 |
| 57 // Note that line numbers are 0-based, not 1-based. |
| 58 function assertSourceLocation(loc, line, column) { |
| 59 assertEquals(line, loc.line); |
| 60 assertEquals(column, loc.column); |
| 61 } |
| 62 |
| 63 TestGeneratorMirror(iter, function (mirror) { |
| 64 assertEquals('suspended', mirror.status()) |
| 65 assertSourceLocation(mirror.sourceLocation(), 7, 19); |
| 66 }); |
| 67 |
| 68 iter.next(); |
| 69 TestGeneratorMirror(iter, function (mirror) { |
| 70 assertEquals('suspended', mirror.status()) |
| 71 assertSourceLocation(mirror.sourceLocation(), 9, 2); |
| 72 }); |
| 73 |
| 74 iter.next(); |
| 75 TestGeneratorMirror(iter, function (mirror) { |
| 76 assertEquals('suspended', mirror.status()) |
| 77 assertSourceLocation(mirror.sourceLocation(), 11, 2); |
| 78 }); |
| 79 |
| 80 iter.next(); |
| 81 TestGeneratorMirror(iter, function (mirror) { |
| 82 assertEquals('closed', mirror.status()) |
| 83 assertEquals(undefined, mirror.sourceLocation()); |
| 84 }); |
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