blob: 97165a80dd8d85f626e063fad8d9856207f35274 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// 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 --debug-eval-readonly-locals
Debug = debug.Debug
var debug_step = 0;
var failure = null;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
if (debug_step == 0) {
assertEquals(1, exec_state.frame(0).evaluate('a').value());
assertEquals(3, exec_state.frame(0).evaluate('b').value());
exec_state.frame(0).evaluate("a = 4").value(); // no effect.
debug_step++;
} else {
assertEquals(1, exec_state.frame(0).evaluate('a').value());
assertEquals(3, exec_state.frame(0).evaluate('b').value());
exec_state.frame(0).evaluate("set_a_to_5()");
exec_state.frame(0).evaluate("b = 5").value(); // no effect.
}
} catch (e) {
failure = e;
}
}
Debug.setListener(listener);
function* generator(a, b) {
function set_a_to_5() { a = 5 }
var b = 3; // Shadows a parameter.
debugger;
yield a;
yield b;
debugger;
yield a;
return b;
}
var foo = generator(1, 2);
assertEquals(1, foo.next().value);
assertEquals(3, foo.next().value);
assertEquals(5, foo.next().value);
assertEquals(3, foo.next().value);
assertNull(failure);
Debug.setListener(null);
|
