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1// Copyright 2008 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
4// met:
5//
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.
15//
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.
27
28// Flags: --expose-debug-as debug --allow-natives-syntax
29// Test the mirror object for scripts.
30
31function testScriptMirror(f, file_name, file_lines, type, compilation_type,
32                          source, eval_from_line) {
33  // Create mirror and JSON representation.
34  var mirror = debug.MakeMirror(f).script();
35  var serializer = debug.MakeMirrorSerializer();
36  var json = JSON.stringify(serializer.serializeValue(mirror));
37
38  // Check the mirror hierachy.
39  assertTrue(mirror instanceof debug.Mirror);
40  assertFalse(mirror instanceof debug.ValueMirror);
41  assertTrue(mirror instanceof debug.ScriptMirror);
42
43  // Check the mirror properties.
44  assertTrue(mirror.isScript());
45  assertEquals('script', mirror.type());
46  var name = mirror.name();
47  if (name) {
48    assertEquals(file_name, name.substring(name.length - file_name.length));
49  } else {
50    assertTrue(file_name === null);
51  }
52  assertEquals(0, mirror.lineOffset());
53  assertEquals(0, mirror.columnOffset());
54  if (file_lines > 0) {
55    assertEquals(file_lines, mirror.lineCount());
56  }
57  assertEquals(type, mirror.scriptType());
58  assertEquals(compilation_type, mirror.compilationType(), "compilation type");
59  if (source) {
60    assertEquals(source, mirror.source());
61  }
62  if (eval_from_line) {
63    assertEquals(eval_from_line,  mirror.evalFromLocation().line);
64  }
65
66  // Parse JSON representation and check.
67  var fromJSON = JSON.parse(json);
68  assertEquals('script', fromJSON.type);
69  name = fromJSON.name;
70  if (name) {
71    assertEquals(file_name, name.substring(name.length - file_name.length));
72  } else {
73    assertTrue(file_name === null);
74  }
75  assertEquals(0, fromJSON.lineOffset);
76  assertEquals(0, fromJSON.columnOffset);
77  if (file_lines > 0) {
78    assertEquals(file_lines, fromJSON.lineCount);
79  }
80  assertEquals(type, fromJSON.scriptType);
81  assertEquals(compilation_type, fromJSON.compilationType);
82}
83
84
85// Test the script mirror for different functions.
86testScriptMirror(function(){}, 'mirror-script.js', 98, 2, 0);
87testScriptMirror(Math.sin, 'native math.js', -1, 0, 0);
88testScriptMirror(eval('(function(){})'), null, 1, 2, 1, '(function(){})', 87);
89testScriptMirror(eval('(function(){\n  })'), null, 2, 2, 1, '(function(){\n  })', 88);
90
91// Test taking slices of source.
92var mirror = debug.MakeMirror(eval('(function(){\n  1;\n})')).script();
93assertEquals('(function(){\n', mirror.sourceSlice(0, 1).sourceText());
94assertEquals('  1;\n', mirror.sourceSlice(1, 2).sourceText());
95assertEquals('})', mirror.sourceSlice(2, 3).sourceText());
96assertEquals('(function(){\n  1;\n', mirror.sourceSlice(0, 2).sourceText());
97assertEquals('  1;\n})', mirror.sourceSlice(1, 3).sourceText());
98assertEquals('(function(){\n  1;\n})', mirror.sourceSlice(0, 3).sourceText());
99