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271 lines
11 KiB
271 lines
11 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
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// The functions used for testing backtraces. They are at the top to make the
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// testing of source line/column easier.
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function f(x, y) {
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a=1;
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};
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var m = function() {
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new f(1);
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};
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function g() {
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m();
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};
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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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listenerCalled = false;
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exception = false;
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function ParsedResponse(json) {
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this.response_ = eval('(' + json + ')');
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this.refs_ = [];
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if (this.response_.refs) {
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for (var i = 0; i < this.response_.refs.length; i++) {
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this.refs_[this.response_.refs[i].handle] = this.response_.refs[i];
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}
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}
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}
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ParsedResponse.prototype.response = function() {
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return this.response_;
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}
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ParsedResponse.prototype.body = function() {
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return this.response_.body;
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}
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ParsedResponse.prototype.running = function() {
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return this.response_.running;
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}
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ParsedResponse.prototype.lookup = function(handle) {
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return this.refs_[handle];
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}
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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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// The expected backtrace is
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// 0: f
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// 1: m
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// 2: g
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// 3: [anonymous]
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var response;
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var backtrace;
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var frame;
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var source;
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var dcp;
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// New copy of debug command processor paused state.
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dcp = exec_state.debugCommandProcessor(false);
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// Get the backtrace.
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var json;
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json = '{"seq":0,"type":"request","command":"backtrace"}'
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var resp = dcp.processDebugJSONRequest(json);
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response = new ParsedResponse(resp);
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backtrace = response.body();
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assertEquals(0, backtrace.fromFrame);
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assertEquals(4, backtrace.toFrame);
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assertEquals(4, backtrace.totalFrames);
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var frames = backtrace.frames;
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assertEquals(4, frames.length);
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for (var i = 0; i < frames.length; i++) {
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assertEquals('frame', frames[i].type);
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}
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assertEquals(0, frames[0].index);
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assertEquals("f", response.lookup(frames[0].func.ref).name);
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assertEquals(1, frames[1].index);
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assertEquals("", response.lookup(frames[1].func.ref).name);
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assertEquals("m", response.lookup(frames[1].func.ref).inferredName);
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assertEquals(2, frames[2].index);
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assertEquals("g", response.lookup(frames[2].func.ref).name);
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assertEquals(3, frames[3].index);
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assertEquals("", response.lookup(frames[3].func.ref).name);
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assertFalse(response.running(), "expected not running");
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// Get backtrace with two frames.
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json = '{"seq":0,"type":"request","command":"backtrace","arguments":{"fromFrame":1,"toFrame":3}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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backtrace = response.body();
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assertEquals(1, backtrace.fromFrame);
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assertEquals(3, backtrace.toFrame);
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assertEquals(4, backtrace.totalFrames);
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var frames = backtrace.frames;
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assertEquals(2, frames.length);
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for (var i = 0; i < frames.length; i++) {
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assertEquals('frame', frames[i].type);
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}
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assertEquals(1, frames[0].index);
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assertEquals("", response.lookup(frames[0].func.ref).name);
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assertEquals("m", response.lookup(frames[0].func.ref).inferredName);
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assertEquals(2, frames[1].index);
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assertEquals("g", response.lookup(frames[1].func.ref).name);
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// Get backtrace with bottom two frames.
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json = '{"seq":0,"type":"request","command":"backtrace","arguments":{"fromFrame":0,"toFrame":2, "bottom":true}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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backtrace = response.body();
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assertEquals(2, backtrace.fromFrame);
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assertEquals(4, backtrace.toFrame);
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assertEquals(4, backtrace.totalFrames);
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var frames = backtrace.frames;
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assertEquals(2, frames.length);
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for (var i = 0; i < frames.length; i++) {
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assertEquals('frame', frames[i].type);
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}
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assertEquals(2, frames[0].index);
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assertEquals("g", response.lookup(frames[0].func.ref).name);
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assertEquals(3, frames[1].index);
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assertEquals("", response.lookup(frames[1].func.ref).name);
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// Get the individual frames.
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json = '{"seq":0,"type":"request","command":"frame"}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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frame = response.body();
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assertEquals(0, frame.index);
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assertEquals("f", response.lookup(frame.func.ref).name);
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assertTrue(frame.constructCall);
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assertEquals(31, frame.line);
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assertEquals(3, frame.column);
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assertEquals(2, frame.arguments.length);
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assertEquals('x', frame.arguments[0].name);
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assertEquals('number', response.lookup(frame.arguments[0].value.ref).type);
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assertEquals(1, response.lookup(frame.arguments[0].value.ref).value);
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assertEquals('y', frame.arguments[1].name);
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assertEquals('undefined', response.lookup(frame.arguments[1].value.ref).type);
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json = '{"seq":0,"type":"request","command":"frame","arguments":{"number":0}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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frame = response.body();
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assertEquals(0, frame.index);
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assertEquals("f", response.lookup(frame.func.ref).name);
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assertEquals(31, frame.line);
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assertEquals(3, frame.column);
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assertEquals(2, frame.arguments.length);
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assertEquals('x', frame.arguments[0].name);
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assertEquals('number', response.lookup(frame.arguments[0].value.ref).type);
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assertEquals(1, response.lookup(frame.arguments[0].value.ref).value);
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assertEquals('y', frame.arguments[1].name);
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assertEquals('undefined', response.lookup(frame.arguments[1].value.ref).type);
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json = '{"seq":0,"type":"request","command":"frame","arguments":{"number":1}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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frame = response.body();
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assertEquals(1, frame.index);
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assertEquals("", response.lookup(frame.func.ref).name);
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assertEquals("m", response.lookup(frame.func.ref).inferredName);
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assertFalse(frame.constructCall);
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assertEquals(35, frame.line);
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assertEquals(6, frame.column);
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assertEquals(0, frame.arguments.length);
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json = '{"seq":0,"type":"request","command":"frame","arguments":{"number":3}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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frame = response.body();
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assertEquals(3, frame.index);
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assertEquals("", response.lookup(frame.func.ref).name);
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// Source slices for the individual frames (they all refer to this script).
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json = '{"seq":0,"type":"request","command":"source",' +
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'"arguments":{"frame":0,"fromLine":30,"toLine":32}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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source = response.body();
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assertEquals("function f(x, y) {", source.source.substring(0, 18));
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assertEquals(30, source.fromLine);
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assertEquals(32, source.toLine);
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json = '{"seq":0,"type":"request","command":"source",' +
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'"arguments":{"frame":1,"fromLine":31,"toLine":32}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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source = response.body();
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assertEquals(" a=1;", source.source.substring(0, 6));
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assertEquals(31, source.fromLine);
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assertEquals(32, source.toLine);
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json = '{"seq":0,"type":"request","command":"source",' +
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'"arguments":{"frame":2,"fromLine":35,"toLine":36}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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source = response.body();
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assertEquals(" new f(1);", source.source.substring(0, 11));
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assertEquals(35, source.fromLine);
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assertEquals(36, source.toLine);
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// Test line interval way beyond this script will result in an error.
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json = '{"seq":0,"type":"request","command":"source",' +
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'"arguments":{"frame":0,"fromLine":10000,"toLine":20000}}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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assertFalse(response.response().success);
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// Test without arguments.
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json = '{"seq":0,"type":"request","command":"source"}'
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response = new ParsedResponse(dcp.processDebugJSONRequest(json));
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source = response.body();
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assertEquals(Debug.findScript(f).source, source.source);
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// New copy of debug command processor in running state.
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dcp = exec_state.debugCommandProcessor(true);
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// Get the backtrace.
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json = '{"seq":0,"type":"request","command":"backtrace"}'
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resp = dcp.processDebugJSONRequest(json);
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response = new ParsedResponse(resp);
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// It might be argueable, but we expect response to have body when
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// not suspended
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assertTrue(!!response.body(), "response should be null");
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assertTrue(response.running(), "expected running");
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listenerCalled = true;
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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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// Set a break point and call to invoke the debug event listener.
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Debug.setBreakPoint(f, 0, 0);
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g();
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// Make sure that the debug event listener vas invoked.
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assertFalse(exception, "exception in listener");
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assertTrue(listenerCalled);
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