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 --inline-construct
29// Get the Debug object exposed from the debug context global object.
30Debug = debug.Debug
31
32var listenerComplete = false;
33var exception = false;
34
35var testingConstructCall = false;
36
37var expected = [
38  { locals: {a0: 1, b0: 2}, args: { names: ["i", "x0", "y0"], values: [0, 3, 4] } },
39  { locals: {a1: 3, b1: 4}, args: { names: ["i", "x1", "y1"], values: [1, 5, 6] } },
40  { locals: {a2: 5, b2: 6}, args: { names: ["i"], values: [2] } },
41  { locals: {a3: 7, b3: 8}, args: { names: ["i", "x3", "y3", "z3"], values: [3, 9, 10, undefined] } },
42  { locals: {a4: 9, b4: 10}, args: { names: ["i", "x4", "y4"], values: [4, 11, 12] } }
43];
44
45function arraySum(arr) {
46  return arr.reduce(function (a, b) { return a + b; }, 0);
47}
48
49function listener(event, exec_state, event_data, data) {
50  try {
51    if (event == Debug.DebugEvent.Break)
52    {
53      assertEquals(6, exec_state.frameCount());
54
55      for (var i = 0; i < exec_state.frameCount(); i++) {
56        var frame = exec_state.frame(i);
57        if (i < exec_state.frameCount() - 1) {
58          var expected_args = expected[i].args;
59          var expected_locals = expected[i].locals;
60
61          // All frames except the bottom one have expected locals.
62          var locals = {};
63          for (var j = 0; j < frame.localCount(); j++) {
64            locals[frame.localName(j)] = frame.localValue(j).value();
65          }
66          assertPropertiesEqual(expected_locals, locals);
67
68          // All frames except the bottom one have expected arguments.
69          for (var j = 0; j < expected_args.names.length; j++) {
70            assertEquals(expected_args.names[j], frame.argumentName(j));
71            assertEquals(expected_args.values[j], frame.argumentValue(j).value());
72          }
73
74          // All frames except the bottom one have two scopes.
75          assertEquals(2, frame.scopeCount());
76          assertEquals(debug.ScopeType.Local, frame.scope(0).scopeType());
77          assertEquals(debug.ScopeType.Global, frame.scope(1).scopeType());
78
79          Object.keys(expected_locals).forEach(function (name) {
80            assertEquals(expected_locals[name], frame.scope(0).scopeObject().value()[name]);
81          });
82
83          for (var j = 0; j < expected_args.names.length; j++) {
84            var arg_name = expected_args.names[j];
85            var arg_value = expected_args.values[j];
86            assertEquals(arg_value, frame.scope(0).scopeObject().value()[arg_name]);
87          }
88
89          // Evaluate in the inlined frame.
90          Object.keys(expected_locals).forEach(function (name) {
91            assertEquals(expected_locals[name], frame.evaluate(name).value());
92          });
93
94          for (var j = 0; j < expected_args.names.length; j++) {
95            var arg_name = expected_args.names[j];
96            var arg_value = expected_args.values[j];
97            assertEquals(arg_value, frame.evaluate(arg_name).value());
98            assertEquals(arg_value, frame.evaluate('arguments['+j+']').value());
99          }
100
101          var expected_args_sum = arraySum(expected_args.values);
102          var expected_locals_sum =
103              arraySum(Object.keys(expected_locals).
104                       map(function (k) { return expected_locals[k]; }));
105
106          assertEquals(expected_locals_sum + expected_args_sum,
107                       frame.evaluate(Object.keys(expected_locals).join('+') + ' + ' +
108                                      expected_args.names.join('+')).value());
109
110          var arguments_sum = expected_args.names.map(function(_, idx) {
111            return "arguments[" + idx + "]";
112          }).join('+');
113          assertEquals(expected_args_sum,
114                       frame.evaluate(arguments_sum).value());
115        } else {
116          // The bottom frame only have the global scope.
117          assertEquals(1, frame.scopeCount());
118          assertEquals(debug.ScopeType.Global, frame.scope(0).scopeType());
119        }
120
121        // Check the frame function.
122        switch (i) {
123          case 0: assertEquals(h, frame.func().value()); break;
124          case 1: assertEquals(g3, frame.func().value()); break;
125          case 2: assertEquals(g2, frame.func().value()); break;
126          case 3: assertEquals(g1, frame.func().value()); break;
127          case 4: assertEquals(f, frame.func().value()); break;
128          case 5: break;
129          default: assertUnreachable();
130        }
131
132        // Check for construct call.
133        if (i == 4) {
134          assertEquals(testingConstructCall, frame.isConstructCall());
135        } else if (i == 2) {
136          assertTrue(frame.isConstructCall());
137        } else {
138          assertFalse(frame.isConstructCall());
139        }
140
141        // When function f is optimized (1 means YES, see runtime.cc) we
142        // expect an optimized frame for f with g1, g2 and g3 inlined.
143        if (%GetOptimizationStatus(f) == 1) {
144          if (i == 1 || i == 2 || i == 3) {
145            assertTrue(frame.isOptimizedFrame());
146            assertTrue(frame.isInlinedFrame());
147            assertEquals(4 - i, frame.inlinedFrameIndex());
148          } else if (i == 4) {
149            assertTrue(frame.isOptimizedFrame());
150            assertFalse(frame.isInlinedFrame());
151          } else {
152            assertFalse(frame.isOptimizedFrame());
153            assertFalse(frame.isInlinedFrame());
154          }
155        }
156      }
157
158      // Indicate that all was processed.
159      listenerComplete = true;
160    }
161  } catch (e) {
162    exception = e.toString() + e.stack;
163  };
164};
165
166for (var i = 0; i < 4; i++) f(expected.length - 1, 11, 12);
167%OptimizeFunctionOnNextCall(f);
168f(expected.length - 1, 11, 12);
169
170// Add the debug event listener.
171Debug.setListener(listener);
172
173function h(i, x0, y0) {
174  var a0 = expected[i].locals.a0;
175  var b0 = expected[i].locals.b0;
176  debugger;  // Breakpoint.
177}
178
179function g3(i, x1, y1) {
180  var a1 = expected[i].locals.a1;
181  var b1 = expected[i].locals.b1;
182  h(i - 1, a1, b1);
183}
184
185function g2(i) {
186  var a2 = expected[i].locals.a2;
187  var b2 = expected[i].locals.b2;
188  g3(i - 1, a2, b2);
189}
190
191function g1(i, x3, y3, z3) {
192  var a3 = expected[i].locals.a3;
193  var b3 = expected[i].locals.b3;
194  new g2(i - 1, a3, b3);
195}
196
197function f(i, x4, y4) {
198  var a4 = expected[i].locals.a4;
199  var b4 = expected[i].locals.b4;
200  g1(i - 1, a4, b4);
201}
202
203// Test calling f normally and as a constructor.
204f(expected.length - 1, 11, 12);
205f(expected.length - 1, 11, 12, 0);
206testingConstructCall = true;
207new f(expected.length - 1, 11, 12);
208new f(expected.length - 1, 11, 12, 0);
209
210// Make sure that the debug event listener was invoked.
211assertFalse(exception, "exception in listener " + exception)
212assertTrue(listenerComplete);
213
214// Throw away type information for next run.
215gc();
216
217Debug.setListener(null);
218