| // Copyright 2008 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| // Flags: --expose-debug-as debug |
| // Get the Debug object exposed from the debug context global object. |
| Debug = debug.Debug |
| |
| // Tests how debugger can step over not necessarily in the top frame. |
| |
| // Simple 3 functions, that protocol their execution state in global |
| // variable state. |
| var state; |
| |
| function f() { |
| var a = 1978; |
| for (state[2] = 0; state[2] < 3; state[2]++) { |
| void String(a); |
| } |
| } |
| function g() { |
| for (state[1] = 0; state[1] < 3; state[1]++) { |
| f(); |
| } |
| } |
| function h() { |
| state = [-1, -1, -1]; |
| for (state[0] = 0; state[0] < 3; state[0]++) { |
| g(); |
| } |
| } |
| |
| function TestCase(frame_index, step_count, expected_final_state) { |
| print("Test case, parameters " + frame_index + "/" + step_count); |
| |
| var listener_exception = null; |
| var state_snapshot; |
| var listener_state; |
| var bp; |
| |
| function listener(event, exec_state, event_data, data) { |
| print("Here ("+event+"/"+listener_state+"): " + |
| exec_state.frame(0).sourceLineText()); |
| try { |
| if (event == Debug.DebugEvent.Break) { |
| if (listener_state == 0) { |
| Debug.clearBreakPoint(bp); |
| var context_frame; |
| if (frame_index !== undefined) { |
| context_frame = exec_state.frame(frame_index); |
| } |
| exec_state.prepareStep(Debug.StepAction.StepNext, |
| step_count, context_frame); |
| listener_state = 1; |
| } else if (listener_state == 1) { |
| state_snapshot = String(state); |
| print("State: " + state_snapshot); |
| Debug.setListener(null); |
| listener_state = 2; |
| } |
| } |
| } catch (e) { |
| listener_exception = e; |
| } |
| } |
| |
| |
| // Add the debug event listener. |
| listener_state = 0; |
| Debug.setListener(listener); |
| bp = Debug.setBreakPoint(f, 1); |
| |
| h(); |
| Debug.setListener(null); |
| if (listener_exception !== null) { |
| print("Exception caught: " + listener_exception); |
| assertUnreachable(); |
| } |
| |
| assertEquals(expected_final_state, state_snapshot); |
| } |
| |
| |
| // Warm-up -- make sure all is compiled and ready for breakpoint. |
| h(); |
| |
| |
| // Stepping in the default (top) frame. |
| TestCase(undefined, 0, "0,0,-1"); |
| TestCase(undefined, 1, "0,0,-1"); |
| TestCase(undefined, 2, "0,0,0"); |
| TestCase(undefined, 5, "0,0,1"); |
| TestCase(undefined, 8, "0,0,3"); |
| |
| // Stepping in the frame #0 (should be exactly the same as above). |
| TestCase(0, 0, "0,0,-1"); |
| TestCase(0, 1, "0,0,-1"); |
| TestCase(0, 2, "0,0,0"); |
| TestCase(0, 5, "0,0,1"); |
| TestCase(0, 8, "0,0,3"); |
| |
| // Stepping in the frame #1. |
| TestCase(1, 0, "0,0,3"); |
| TestCase(1, 3, "0,1,3"); |
| TestCase(1, 7, "0,3,3"); |
| |
| // Stepping in the frame #2. |
| TestCase(2, 3, "1,3,3"); |
| TestCase(2, 7, "3,3,3"); |