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
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 --expose-gc --allow-natives-syntax
29// Flags: --inline-construct
30
31// Get the Debug object exposed from the debug context global object.
32Debug = debug.Debug
33
34var listenerComplete = false;
35var exception = false;
36
37var testingConstructCall = false;
38
39var input = [
40  {a: 1, b: 2},
41  {a: 3, b: 4},
42  {a: 5, b: 6},
43  {a: 7, b: 8},
44  {a: 9, b: 10}
45];
46
47var expected = [
48  { locals: {a0: 1.01, b0: 2.02},
49    args: { names: ["i", "x0", "y0"], values: [0, 3.03, 4.04] } },
50  { locals: {a1: 3.03, b1: 4.04},
51    args: { names: ["i", "x1", "y1"], values: [1, 5.05, 6.06] } },
52  { locals: {a2: 5.05, b2: 6.06},
53    args: { names: ["i"], values: [2] } },
54  { locals: {a3: 7.07, b3: 8.08},
55    args: { names: ["i", "x3", "y3", "z3"],
56            values: [3, 9.09, 10.10, undefined] } },
57  { locals: {a4: 9.09, b4: 10.10},
58    args: { names: ["i", "x4", "y4"], values: [4, 11.11, 12.12] } }
59];
60
61function arraySum(arr) {
62  return arr.reduce(function (a, b) { return a + b; }, 0);
63}
64
65function listener(event, exec_state, event_data, data) {
66  try {
67    if (event == Debug.DebugEvent.Break)
68    {
69      assertEquals(6, exec_state.frameCount());
70
71      for (var i = 0; i < exec_state.frameCount(); i++) {
72        var frame = exec_state.frame(i);
73        if (i < exec_state.frameCount() - 1) {
74          var expected_args = expected[i].args;
75          var expected_locals = expected[i].locals;
76
77          // All frames except the bottom one have expected locals.
78          var locals = {};
79          for (var j = 0; j < frame.localCount(); j++) {
80            locals[frame.localName(j)] = frame.localValue(j).value();
81          }
82          assertPropertiesEqual(expected_locals, locals);
83
84          // All frames except the bottom one have expected arguments.
85          for (var j = 0; j < expected_args.names.length; j++) {
86            assertEquals(expected_args.names[j], frame.argumentName(j));
87            assertEquals(expected_args.values[j],
88                         frame.argumentValue(j).value());
89          }
90
91          // All frames except the bottom one have two scopes.
92          assertEquals(2, frame.scopeCount());
93          assertEquals(debug.ScopeType.Local, frame.scope(0).scopeType());
94          assertEquals(debug.ScopeType.Global, frame.scope(1).scopeType());
95
96          Object.keys(expected_locals).forEach(function (name) {
97            assertEquals(expected_locals[name],
98                         frame.scope(0).scopeObject().value()[name]);
99          });
100
101          for (var j = 0; j < expected_args.names.length; j++) {
102            var arg_name = expected_args.names[j];
103            var arg_value = expected_args.values[j];
104            assertEquals(arg_value,
105                         frame.scope(0).scopeObject().value()[arg_name]);
106          }
107
108          // Evaluate in the inlined frame.
109          Object.keys(expected_locals).forEach(function (name) {
110            assertEquals(expected_locals[name], frame.evaluate(name).value());
111          });
112
113          for (var j = 0; j < expected_args.names.length; j++) {
114            var arg_name = expected_args.names[j];
115            var arg_value = expected_args.values[j];
116            assertEquals(arg_value, frame.evaluate(arg_name).value());
117            assertEquals(arg_value, frame.evaluate('arguments['+j+']').value());
118          }
119
120          var expected_args_sum = arraySum(expected_args.values);
121          var expected_locals_sum =
122              arraySum(Object.keys(expected_locals).
123                       map(function (k) { return expected_locals[k]; }));
124
125          assertEquals(expected_locals_sum + expected_args_sum,
126                       frame.evaluate(Object.keys(expected_locals).join('+') +
127                                      ' + ' +
128                                      expected_args.names.join('+')).value());
129
130          var arguments_sum = expected_args.names.map(function(_, idx) {
131            return "arguments[" + idx + "]";
132          }).join('+');
133          assertEquals(expected_args_sum,
134                       frame.evaluate(arguments_sum).value());
135        } else {
136          // The bottom frame only have the global scope.
137          assertEquals(1, frame.scopeCount());
138          assertEquals(debug.ScopeType.Global, frame.scope(0).scopeType());
139        }
140
141        // Check the frame function.
142        switch (i) {
143          case 0: assertEquals(h, frame.func().value()); break;
144          case 1: assertEquals(g3, frame.func().value()); break;
145          case 2: assertEquals(g2, frame.func().value()); break;
146          case 3: assertEquals(g1, frame.func().value()); break;
147          case 4: assertEquals(f, frame.func().value()); break;
148          case 5: break;
149          default: assertUnreachable();
150        }
151
152        // Check for construct call.
153        if (i == 4) {
154          assertEquals(testingConstructCall, frame.isConstructCall());
155        } else if (i == 2) {
156          assertTrue(frame.isConstructCall());
157        } else {
158          assertFalse(frame.isConstructCall());
159        }
160
161        if (i > 4) {
162          assertFalse(frame.isOptimizedFrame());
163          assertFalse(frame.isInlinedFrame());
164        }
165      }
166
167      // Indicate that all was processed.
168      listenerComplete = true;
169    }
170  } catch (e) {
171    exception = e.toString() + e.stack;
172  };
173};
174
175for (var i = 0; i < 4; i++) f(input.length - 1, 11.11, 12.12);
176%OptimizeFunctionOnNextCall(f);
177f(input.length - 1, 11.11, 12.12);
178
179// Add the debug event listener.
180Debug.setListener(listener);
181
182function h(i, x0, y0) {
183  var a0 = input[i].a;
184  var b0 = input[i].b;
185  a0 = a0 + a0 / 100;
186  b0 = b0 + b0 / 100;
187  debugger;  // Breakpoint.
188  return a0 + b0;
189};
190
191function g3(i, x1, y1) {
192  var a1 = input[i].a;
193  var b1 = input[i].b;
194  a1 = a1 + a1 / 100;
195  b1 = b1 + b1 / 100;
196  h(i - 1, a1, b1);
197  return a1 + b1;
198};
199
200function g2(i) {
201  var a2 = input[i].a;
202  var b2 = input[i].b;
203  a2 = a2 + a2 / 100;
204  b2 = b2 + b2 / 100;
205  g3(i - 1, a2, b2);
206  return a2 + b2;
207};
208
209function g1(i, x3, y3, z3) {
210  var a3 = input[i].a;
211  var b3 = input[i].b;
212  a3 = a3 + a3 / 100;
213  b3 = b3 + b3 / 100;
214  new g2(i - 1, a3, b3);
215  return a3 + b3;
216};
217
218function f(i, x4, y4) {
219  var a4 = input[i].a;
220  var b4 = input[i].b;
221  a4 = a4 + a4 / 100;
222  b4 = b4 + b4 / 100;
223  g1(i - 1, a4, b4);
224  return a4 + b4;
225};
226
227// Test calling f normally and as a constructor.
228f(input.length - 1, 11.11, 12.12);
229f(input.length - 1, 11.11, 12.12, "");
230testingConstructCall = true;
231new f(input.length - 1, 11.11, 12.12);
232new f(input.length - 1, 11.11, 12.12, "");
233
234// Make sure that the debug event listener was invoked.
235assertFalse(exception, "exception in listener " + exception)
236assertTrue(listenerComplete);
237
238//Throw away type information for next run.
239gc();
240
241Debug.setListener(null);
242