c2c780bfc4
it is assigned a numeric handle. Handles are used to make a 1:1
correspondence between objects and mirrors. Currently the mirrors are
cached in a JavaScript array and when creating a mirror this cache is
checked to see if a mirror already exists for the object. This cache is
cleared when leaving the debugger.
Changed the serialization format to take advantage of these handles. When
an object is serialized referenced objects are represented just by their
handle id serialized as '{ref:<handle>}'. During serialization the
referenced handles are collected and the serializer can provide a
serialization of all the referenced objects.
Removed the special handling of array properties. Indexed properties and
the length property are now rendered as named properties in the
serialization.
Removed the special serialization handling of RegExp properties. The
properties 'source', 'global', 'ignoreCase' and 'multiline' are serialized
with the rest of the properties.
Changed a lot of tests to handle the changed format.
Review URL: http://codereview.chromium.org/18092
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1093 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
86 lines
3.0 KiB
JavaScript
86 lines
3.0 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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// 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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function g() {
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new f(1);
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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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listenerCallCount = 0;
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listenerExceptionCount = 0;
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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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{
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listenerCallCount++;
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// Check that mirror cache is cleared when entering debugger.
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assertEquals(0, debug.next_handle_, "Mirror cache not cleared");
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assertEquals(0, debug.mirror_cache_.length, "Mirror cache not cleared");
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// Get the debug command processor.
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var dcp = exec_state.debugCommandProcessor();
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// Make a backtrace request to create some mirrors.
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var json;
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json = '{"seq":0,"type":"request","command":"backtrace"}'
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dcp.processDebugJSONRequest(json);
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// Some mirrors where cached.
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assertFalse(debug.next_handle_ == 0, "Mirror cache not used");
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assertFalse(debug.mirror_cache_.length == 0, "Mirror cache not used");
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}
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} catch (e) {
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print(e);
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listenerExceptionCount++;
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};
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};
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// Add the debug event listener.
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Debug.addListener(listener);
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// Enter the debugger twice.
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debugger;
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debugger;
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// Make sure that the debug event listener vas invoked.
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assertEquals(2, listenerCallCount, "Listener not called");
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assertEquals(0, listenerExceptionCount, "Exception in listener");
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