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Debug: parameterize 'step over' action with a frame where the step mu…
…st be performed R=yangguo@chromium.org Review URL: https://codereview.chromium.org/23533015 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| // 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] < 5; state[2]++) { | ||
| void String(a); | ||
| } | ||
| } | ||
| function g() { | ||
| for (state[1] = 0; state[1] < 5; state[1]++) { | ||
| f(); | ||
| } | ||
| } | ||
| function h() { | ||
| state = [-1, -1, -1]; | ||
| for (state[0] = 0; state[0] < 5; state[0]++) { | ||
| g(); | ||
| } | ||
| } | ||
|
|
||
| function TestCase(frame_index, step_count, expected_final_state) { | ||
| print("Test case, parameters " + frame_index + "/" + step_count); | ||
|
|
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| var listener_exception = null; | ||
| var state_snapshot; | ||
| var listener_state; | ||
| var bp; | ||
|
|
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| 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(); | ||
| } | ||
|
|
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| assertEquals(expected_final_state, state_snapshot); | ||
| } | ||
|
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|
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| // Warm-up -- make sure all is compiled and ready for breakpoint. | ||
| h(); | ||
|
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|
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| // 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, "0,0,5"); | ||
| TestCase(1, 3, "0,1,5"); | ||
| TestCase(1, 8, "0,4,5"); | ||
|
|
||
| // Stepping in the frame #2. | ||
| TestCase(2, 3, "1,5,5"); | ||
| TestCase(2, 8, "4,5,5"); |