1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 // Flags: --expose-debug-as debug --harmony-scoping
31 let top_level_let = 255;
33 // Get the Debug object exposed from the debug context global object.
34 var Debug = debug.Debug;
36 function CheckScope(scope_mirror, scope_expectations, expected_scope_type) {
37 assertEquals(expected_scope_type, scope_mirror.scopeType());
39 var scope_object = scope_mirror.scopeObject().value();
41 for (let name in scope_expectations) {
42 let actual = scope_object[name];
43 let expected = scope_expectations[name];
44 assertEquals(expected, actual);
48 // A copy of the scope types from mirror-debugger.js.
49 var ScopeType = { Global: 0,
57 var f1 = (function F1(x) {
63 var F3 = function(a, b) {
65 return p + a + b + z + w + v.length;
75 var mirror = Debug.MakeMirror(f1);
77 assertEquals(5, mirror.scopeCount());
79 CheckScope(mirror.scope(0), { a: 4, b: 5 }, ScopeType.Closure);
80 CheckScope(mirror.scope(1), { z: 22, w: 5, v: "Capybara" }, ScopeType.Closure);
81 CheckScope(mirror.scope(2), { x: 5 }, ScopeType.Closure);
82 CheckScope(mirror.scope(3), { top_level_let: 255 }, ScopeType.Script);
83 CheckScope(mirror.scope(4), {}, ScopeType.Global);
85 var f2 = (function() {
101 return l0 + v1 + v3 + l2 + l3 + v6;
108 var mirror = Debug.MakeMirror(f2);
110 assertEquals(6, mirror.scopeCount());
112 // Implementation artifact: l4 isn't used in closure, but still it is saved.
113 CheckScope(mirror.scope(0), { l4: 11 }, ScopeType.Block);
115 CheckScope(mirror.scope(1), { l3: 9 }, ScopeType.Block);
116 CheckScope(mirror.scope(2), { l1: 6, l2: 7 }, ScopeType.Block);
117 CheckScope(mirror.scope(3), { v1:3, l0: 0, v3: 5, v6: 11 }, ScopeType.Closure);
118 CheckScope(mirror.scope(4), { top_level_let: 255 }, ScopeType.Script);
119 CheckScope(mirror.scope(5), {}, ScopeType.Global);