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debug-break-inline.js
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80 lines (67 loc) · 2.58 KB
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// Copyright 2011 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.
// This test tests that deoptimization due to debug breaks works for
// inlined functions where the full-code is generated before the
// debugger is attached.
//
//See http://code.google.com/p/chromium/issues/detail?id=105375
Debug = debug.Debug;
var count = 0;
var break_count = 0;
// Debug event listener which sets a breakpoint first time it is hit
// and otherwise counts break points hit and checks that the expected
// state is reached.
function listener(event, exec_state, event_data, data) {
if (event == Debug.DebugEvent.Break) {
break_count++;
if (break_count == 1) {
Debug.setBreakPoint(g, 3);
}
}
}
function f() {
g();
}
function g() {
count++;
h();
var b = 1; // Break point is set here.
}
function h() {
debugger;
}
%PrepareFunctionForOptimization(f);
f();f();f();
%OptimizeFunctionOnNextCall(f);
f();
// Add the debug event listener.
Debug.setListener(listener);
f();
assertEquals(5, count);
assertEquals(2, break_count);
// Get rid of the debug event listener.
Debug.setListener(null);