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Side by Side Diff: test/mjsunit/es6/generators-mirror.js

Issue 2566103002: [debug-wrappers] remove mirror tests. (Closed)
Patch Set: Created 4 years ago
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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, status, line, column, receiver) {
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 assertEquals(receiver, mirror.receiver().value());
48 assertEquals(generator, mirror.func().value());
49
50 assertEquals(status, mirror.status());
51
52 // Note that line numbers are 0-based, not 1-based.
53 var loc = mirror.sourceLocation();
54 if (status === 'suspended') {
55 assertTrue(!!loc);
56 assertEquals(line, loc.line);
57 assertEquals(column, loc.column);
58 } else {
59 assertEquals(undefined, loc);
60 }
61
62 TestInternalProperties(mirror, status, receiver);
63 }
64
65 function TestInternalProperties(mirror, status, receiver) {
66 var properties = mirror.internalProperties();
67 assertEquals(3, properties.length);
68 assertEquals("[[GeneratorStatus]]", properties[0].name());
69 assertEquals(status, properties[0].value().value());
70 assertEquals("[[GeneratorFunction]]", properties[1].name());
71 assertEquals(generator, properties[1].value().value());
72 assertEquals("[[GeneratorReceiver]]", properties[2].name());
73 assertEquals(receiver, properties[2].value().value());
74 }
75
76 var iter = generator(function() {
77 var mirror = debug.MakeMirror(iter);
78 assertEquals('running', mirror.status());
79 assertEquals(undefined, mirror.sourceLocation());
80 TestInternalProperties(mirror, 'running');
81 });
82
83 TestGeneratorMirror(iter, 'suspended', 7, 19);
84
85 iter.next();
86 TestGeneratorMirror(iter, 'suspended', 9, 2);
87
88 iter.next();
89 TestGeneratorMirror(iter, 'suspended', 11, 2);
90
91 iter.next();
92 TestGeneratorMirror(iter, 'closed');
93
94 // Test generator with receiver.
95 var obj = {foo: 42};
96 var iter2 = generator.call(obj, function() {
97 var mirror = debug.MakeMirror(iter2);
98 assertEquals('running', mirror.status());
99 assertEquals(undefined, mirror.sourceLocation());
100 TestInternalProperties(mirror, 'running', obj);
101 });
102
103 TestGeneratorMirror(iter2, 'suspended', 7, 19, obj);
104
105 iter2.next();
106 TestGeneratorMirror(iter2, 'suspended', 9, 2, obj);
107
108 iter2.next();
109 TestGeneratorMirror(iter2, 'suspended', 11, 2, obj);
110
111 iter2.next();
112 TestGeneratorMirror(iter2, 'closed', 0, 0, obj);
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