affe4c03b6
V8 didn't report compile events on pause before this patch. These events can be important for listener. For example, DevTools allows user to execute some JS code on pause and needs to show correct stack trace in message from it. BUG=396013 R=yurys@chromium.org Review URL: https://codereview.chromium.org/781623004 Cr-Commit-Position: refs/heads/master@{#25767}
129 lines
4.6 KiB
JavaScript
129 lines
4.6 KiB
JavaScript
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-debug-as debug
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// Flags: --turbo-deoptimization
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// Get the Debug object exposed from the debug context global object.
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var Debug = debug.Debug
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// Simple function which stores the last debug event.
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var listenerComplete = false;
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var exception = false;
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var base_request = '"seq":0,"type":"request","command":"clearbreakpointgroup"';
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var scriptId = null;
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var muteListener = false;
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function safeEval(code) {
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try {
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muteListener = true;
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return eval('(' + code + ')');
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} catch (e) {
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assertEquals(void 0, e);
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return undefined;
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} finally {
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muteListener = false;
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}
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}
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function testArguments(dcp, arguments, success) {
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var request = '{' + base_request + ',"arguments":' + arguments + '}'
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var json_response = dcp.processDebugJSONRequest(request);
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var response = safeEval(json_response);
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if (success) {
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assertTrue(response.success, json_response);
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} else {
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assertFalse(response.success, json_response);
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}
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}
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function listener(event, exec_state, event_data, data) {
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if (muteListener) return;
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try {
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if (event == Debug.DebugEvent.Break) {
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// Get the debug command processor.
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var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
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// Clear breakpoint group 1.
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testArguments(dcp, '{"groupId":1}', true);
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// Indicate that all was processed.
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listenerComplete = true;
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} else if (event == Debug.DebugEvent.AfterCompile) {
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scriptId = event_data.script().id();
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assertEquals(source, event_data.script().source());
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}
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} catch (e) {
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exception = e
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};
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};
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// Add the debug event listener.
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Debug.setListener(listener);
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var source = 'function f(n) {\nreturn n+1;\n}\nfunction g() {return f(10);}' +
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'\nvar r = g(); g;';
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eval(source);
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assertNotNull(scriptId);
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var groupId1 = 1;
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var groupId2 = 2;
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// Set a break point and call to invoke the debug event listener.
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var bp1 = Debug.setScriptBreakPointById(scriptId, 1, null, null, groupId1);
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var bp2 = Debug.setScriptBreakPointById(scriptId, 1, null, null, groupId2);
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var bp3 = Debug.setScriptBreakPointById(scriptId, 1, null, null, null);
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var bp4 = Debug.setScriptBreakPointById(scriptId, 3, null, null, groupId1);
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var bp5 = Debug.setScriptBreakPointById(scriptId, 4, null, null, groupId2);
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assertEquals(5, Debug.scriptBreakPoints().length);
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// Call function 'g' from the compiled script to trigger breakpoint.
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g();
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// Make sure that the debug event listener vas invoked.
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assertTrue(listenerComplete,
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"listener did not run to completion: " + exception);
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var breakpoints = Debug.scriptBreakPoints();
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assertEquals(3, breakpoints.length);
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var breakpointNumbers = breakpoints.map(
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function(scriptBreakpoint) { return scriptBreakpoint.number(); },
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breakpointNumbers);
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// Check that all breakpoints from group 1 were deleted and all the
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// rest are preserved.
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assertEquals([bp2, bp3, bp5].sort(), breakpointNumbers.sort());
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assertFalse(exception, "exception in listener");
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// Clear all breakpoints to allow the test to run again (--stress-opt).
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Debug.clearBreakPoint(bp2);
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Debug.clearBreakPoint(bp3);
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Debug.clearBreakPoint(bp5);
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