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
8function *generator(f) {
9  "use strict";
10  yield;
11  f();
12  yield;
13}
14
15function 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
23MirrorRefCache.prototype.lookup = function(handle) {
24  return this.refs_[handle];
25}
26
27function 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
53var iter = generator(function () {
54  assertEquals('running', debug.MakeMirror(iter).status());
55})
56
57// Note that line numbers are 0-based, not 1-based.
58function assertSourceLocation(loc, line, column) {
59  assertEquals(line, loc.line);
60  assertEquals(column, loc.column);
61}
62
63TestGeneratorMirror(iter, function (mirror) {
64  assertEquals('suspended', mirror.status())
65  assertSourceLocation(mirror.sourceLocation(), 7, 19);
66});
67
68iter.next();
69TestGeneratorMirror(iter, function (mirror) {
70  assertEquals('suspended', mirror.status())
71  assertSourceLocation(mirror.sourceLocation(), 9, 2);
72});
73
74iter.next();
75TestGeneratorMirror(iter, function (mirror) {
76  assertEquals('suspended', mirror.status())
77  assertSourceLocation(mirror.sourceLocation(), 11, 2);
78});
79
80iter.next();
81TestGeneratorMirror(iter, function (mirror) {
82  assertEquals('closed', mirror.status())
83  assertEquals(undefined, mirror.sourceLocation());
84});
85