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225 lines
6.4 KiB
225 lines
6.4 KiB
// 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 --nocrankshaft
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// Get the Debug object exposed from the debug context global object.
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Debug = debug.Debug
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function DebuggerStatement() {
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debugger; /*pause*/
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}
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function TestCase(fun, frame_number) {
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var exception = false;
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var codeSnippet = undefined;
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var resultPositions = undefined;
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Break ||
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event == Debug.DebugEvent.Exception) {
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Debug.setListener(null);
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assertHasLineMark(/pause/, exec_state.frame(0));
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assertHasLineMark(/positions/, exec_state.frame(frame_number));
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var frame = exec_state.frame(frame_number);
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codeSnippet = frame.sourceLineText();
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resultPositions = frame.stepInPositions();
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}
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} catch (e) {
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exception = e
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}
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function assertHasLineMark(mark, frame) {
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var line = frame.sourceLineText();
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if (!mark.exec(frame.sourceLineText())) {
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throw new Error("Line " + line + " should contain mark " + mark);
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}
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}
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}
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Debug.setListener(listener);
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fun();
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Debug.setListener(null);
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assertTrue(!exception, exception);
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var expectedPositions = {};
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var markPattern = new RegExp("/\\*#\\*/", "g");
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var matchResult;
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while ( (matchResult = markPattern.exec(codeSnippet)) ) {
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expectedPositions[matchResult.index] = true;
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}
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print(codeSnippet);
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var decoratedResult = codeSnippet;
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function replaceStringRange(s, pos, substitute) {
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return s.substring(0, pos) + substitute +
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s.substring(pos + substitute.length);
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}
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var markLength = 5;
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var unexpectedPositionFound = false;
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for (var i = 0; i < resultPositions.length; i++) {
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var col = resultPositions[i].position.column - markLength;
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if (expectedPositions[col]) {
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delete expectedPositions[col];
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decoratedResult = replaceStringRange(decoratedResult, col, "*YES*");
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} else {
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decoratedResult = replaceStringRange(decoratedResult, col, "!BAD!");
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unexpectedPositionFound = true;
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}
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}
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print(decoratedResult);
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for (var n in expectedPositions) {
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assertTrue(false, "Some positions are not reported: " + decoratedResult);
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break;
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}
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assertFalse(unexpectedPositionFound, "Found unexpected position: " +
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decoratedResult);
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}
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function TestCaseWithDebugger(fun) {
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TestCase(fun, 1);
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}
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function TestCaseWithBreakpoint(fun, line_number, frame_number) {
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var breakpointId = Debug.setBreakPoint(fun, line_number);
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TestCase(fun, frame_number);
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Debug.clearBreakPoint(breakpointId);
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}
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function TestCaseWithException(fun, frame_number) {
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Debug.setBreakOnException();
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TestCase(fun, frame_number);
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Debug.clearBreakOnException();
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}
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// Test cases.
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// Step in position, when the function call that we are standing at is already
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// being executed.
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var fun = function() {
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function g(p) {
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throw String(p); /*pause*/
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}
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try {
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var res = [ g(1), /*#*/g(2) ]; /*positions*/
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} catch (e) {
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}
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};
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TestCaseWithBreakpoint(fun, 2, 1);
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TestCaseWithException(fun, 1);
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// Step in position, when the function call that we are standing at is raising
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// an exception.
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var fun = function() {
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var o = {
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g: function(p) {
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throw p;
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}
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};
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try {
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var res = [ /*#*/f(1), /*#*/g(2) ]; /*pause, positions*/
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} catch (e) {
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}
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};
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TestCaseWithException(fun, 0);
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// Step-in position, when already paused almost on the first call site.
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var fun = function() {
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function g(p) {
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throw p;
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}
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try {
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var res = [ /*#*/g(Math.rand), /*#*/g(2) ]; /*pause, positions*/
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} catch (e) {
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}
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};
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TestCaseWithBreakpoint(fun, 5, 0);
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// Step-in position, when already paused on the first call site.
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var fun = function() {
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function g() {
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throw "Debug";
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}
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try {
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var res = [ /*#*/g(), /*#*/g() ]; /*pause, positions*/
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} catch (e) {
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}
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};
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TestCaseWithBreakpoint(fun, 5, 0);
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// Method calls.
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var fun = function() {
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var data = {
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a: function() {}
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};
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var res = [ DebuggerStatement(), data./*#*/a(), data[/*#*/String("a")]/*#*/(), data["a"]/*#*/(), data.a, data["a"] ]; /*positions*/
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};
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TestCaseWithDebugger(fun);
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// Function call on a value.
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var fun = function() {
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function g(p) {
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return g;
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}
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var res = [ DebuggerStatement(), /*#*/g(2), /*#*/g(2)/*#*/(3), /*#*/g(0)/*#*/(0)/*#*/(g) ]; /*positions*/
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};
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TestCaseWithDebugger(fun);
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// Local function call, closure function call,
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// local function construction call.
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var fun = (function(p) {
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return function() {
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function f(a, b) {
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}
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var res = /*#*/f(DebuggerStatement(), /*#*/p(/*#*/new f())); /*positions*/
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};
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})(Object);
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TestCaseWithDebugger(fun);
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// Global function, global object construction, calls before pause point.
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var fun = (function(p) {
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return function() {
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var res = [ Math.abs(new Object()), DebuggerStatement(), Math./*#*/abs(4), /*#*/new Object()./*#*/toString() ]; /*positions*/
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};
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})(Object);
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TestCaseWithDebugger(fun);
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