| // Copyright 2014 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-debug-as debug |
| // Test the mirror object for functions. |
| |
| function *generator(f) { |
| "use strict"; |
| yield; |
| f(); |
| yield; |
| } |
| |
| function MirrorRefCache(json_refs) { |
| var tmp = eval('(' + json_refs + ')'); |
| this.refs_ = []; |
| for (var i = 0; i < tmp.length; i++) { |
| this.refs_[tmp[i].handle] = tmp[i]; |
| } |
| } |
| |
| MirrorRefCache.prototype.lookup = function(handle) { |
| return this.refs_[handle]; |
| } |
| |
| function TestGeneratorMirror(g, status, line, column, receiver) { |
| // Create mirror and JSON representation. |
| var mirror = debug.MakeMirror(g); |
| var serializer = debug.MakeMirrorSerializer(); |
| var json = JSON.stringify(serializer.serializeValue(mirror)); |
| var refs = new MirrorRefCache( |
| JSON.stringify(serializer.serializeReferencedObjects())); |
| |
| // Check the mirror hierachy. |
| assertTrue(mirror instanceof debug.Mirror); |
| assertTrue(mirror instanceof debug.ValueMirror); |
| assertTrue(mirror instanceof debug.ObjectMirror); |
| assertTrue(mirror instanceof debug.GeneratorMirror); |
| |
| // Check the mirror properties. |
| assertTrue(mirror.isGenerator()); |
| assertEquals('generator', mirror.type()); |
| assertFalse(mirror.isPrimitive()); |
| assertEquals('Generator', mirror.className()); |
| |
| assertEquals(receiver, mirror.receiver().value()); |
| assertEquals(generator, mirror.func().value()); |
| |
| assertEquals(status, mirror.status()); |
| |
| // Note that line numbers are 0-based, not 1-based. |
| var loc = mirror.sourceLocation(); |
| if (status === 'suspended') { |
| assertTrue(!!loc); |
| assertEquals(line, loc.line); |
| assertEquals(column, loc.column); |
| } else { |
| assertEquals(undefined, loc); |
| } |
| |
| TestInternalProperties(mirror, status, receiver); |
| } |
| |
| function TestInternalProperties(mirror, status, receiver) { |
| var properties = mirror.internalProperties(); |
| assertEquals(3, properties.length); |
| assertEquals("[[GeneratorStatus]]", properties[0].name()); |
| assertEquals(status, properties[0].value().value()); |
| assertEquals("[[GeneratorFunction]]", properties[1].name()); |
| assertEquals(generator, properties[1].value().value()); |
| assertEquals("[[GeneratorReceiver]]", properties[2].name()); |
| assertEquals(receiver, properties[2].value().value()); |
| } |
| |
| var iter = generator(function() { |
| var mirror = debug.MakeMirror(iter); |
| assertEquals('running', mirror.status()); |
| assertEquals(undefined, mirror.sourceLocation()); |
| TestInternalProperties(mirror, 'running'); |
| }); |
| |
| TestGeneratorMirror(iter, 'suspended', 7, 19); |
| |
| iter.next(); |
| TestGeneratorMirror(iter, 'suspended', 9, 2); |
| |
| iter.next(); |
| TestGeneratorMirror(iter, 'suspended', 11, 2); |
| |
| iter.next(); |
| TestGeneratorMirror(iter, 'closed'); |
| |
| // Test generator with receiver. |
| var obj = {foo: 42}; |
| var iter2 = generator.call(obj, function() { |
| var mirror = debug.MakeMirror(iter2); |
| assertEquals('running', mirror.status()); |
| assertEquals(undefined, mirror.sourceLocation()); |
| TestInternalProperties(mirror, 'running', obj); |
| }); |
| |
| TestGeneratorMirror(iter2, 'suspended', 7, 19, obj); |
| |
| iter2.next(); |
| TestGeneratorMirror(iter2, 'suspended', 9, 2, obj); |
| |
| iter2.next(); |
| TestGeneratorMirror(iter2, 'suspended', 11, 2, obj); |
| |
| iter2.next(); |
| TestGeneratorMirror(iter2, 'closed', 0, 0, obj); |