v8/test/mjsunit/debug-evaluate-locals-optimized.js

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// Copyright 2008 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.
// Flags: --expose-debug-as debug --allow-natives-syntax
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
var listenerComplete = false;
var exception = false;
var testingConstructCall = false;
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break)
{
assertEquals(6, exec_state.frameCount());
for (var i = 0; i < exec_state.frameCount(); i++) {
var frame = exec_state.frame(i);
if (i < exec_state.frameCount() - 1) {
var expected_a = i * 2 + 1;
var expected_b = i * 2 + 2;
var expected_x = (i + 1) * 2 + 1;
var expected_y = (i + 1) * 2 + 2;
// All frames except the bottom one has normal variables a and b.
assertEquals('a', frame.localName(0));
assertEquals('b', frame.localName(1));
assertEquals(expected_a, frame.localValue(0).value());
assertEquals(expected_b, frame.localValue(1).value());
// All frames except the bottom one has arguments variables x and y.
assertEquals('x', frame.argumentName(0));
assertEquals('y', frame.argumentName(1));
assertEquals(expected_x, frame.argumentValue(0).value());
assertEquals(expected_y, frame.argumentValue(1).value());
// All frames except the bottom one have two scopes.
assertEquals(2, frame.scopeCount());
assertEquals(debug.ScopeType.Local, frame.scope(0).scopeType());
assertEquals(debug.ScopeType.Global, frame.scope(1).scopeType());
assertEquals(expected_a, frame.scope(0).scopeObject().value()['a']);
assertEquals(expected_b, frame.scope(0).scopeObject().value()['b']);
assertEquals(expected_x, frame.scope(0).scopeObject().value()['x']);
assertEquals(expected_y, frame.scope(0).scopeObject().value()['y']);
// Evaluate in the inlined frame.
assertEquals(expected_a, frame.evaluate('a').value());
assertEquals(expected_x, frame.evaluate('x').value());
assertEquals(expected_x, frame.evaluate('arguments[0]').value());
assertEquals(expected_a + expected_b + expected_x + expected_y,
frame.evaluate('a + b + x + y').value());
assertEquals(expected_x + expected_y,
frame.evaluate('arguments[0] + arguments[1]').value());
} else {
// The bottom frame only have the global scope.
assertEquals(1, frame.scopeCount());
assertEquals(debug.ScopeType.Global, frame.scope(0).scopeType());
}
// Check the frame function.
switch (i) {
case 0: assertEquals(h, frame.func().value()); break;
case 1: assertEquals(g3, frame.func().value()); break;
case 2: assertEquals(g2, frame.func().value()); break;
case 3: assertEquals(g1, frame.func().value()); break;
case 4: assertEquals(f, frame.func().value()); break;
case 5: break;
default: assertUnreachable();
}
// Check for construct call.
assertEquals(testingConstructCall && i == 4, frame.isConstructCall());
// When function f is optimized (1 means YES, see runtime.cc) we
// expect an optimized frame for f with g1, g2 and g3 inlined.
if (%GetOptimizationStatus(f) == 1) {
if (i == 1 || i == 2 || i == 3) {
assertTrue(frame.isOptimizedFrame());
assertTrue(frame.isInlinedFrame());
assertEquals(4 - i, frame.inlinedFrameIndex());
} else if (i == 4) {
assertTrue(frame.isOptimizedFrame());
assertFalse(frame.isInlinedFrame());
} else {
assertFalse(frame.isOptimizedFrame());
assertFalse(frame.isInlinedFrame());
}
}
}
// Indicate that all was processed.
listenerComplete = true;
}
} catch (e) {
exception = e
};
};
f();f();f();
%OptimizeFunctionOnNextCall(f);
f();
// Add the debug event listener.
Debug.setListener(listener);
function h(x, y) {
var a = 1;
var b = 2;
debugger; // Breakpoint.
};
function g3(x, y) {
var a = 3;
var b = 4;
h(a, b);
};
function g2(x, y) {
var a = 5;
var b = 6;
g3(a, b);
};
function g1(x, y) {
var a = 7;
var b = 8;
g2(a, b);
};
function f(x, y) {
var a = 9;
var b = 10;
g1(a, b);
};
// Test calling f normally and as a constructor.
f(11, 12);
testingConstructCall = true;
new f(11, 12);
// Make sure that the debug event listener vas invoked.
assertFalse(exception, "exception in listener " + exception)
assertTrue(listenerComplete);
Debug.setListener(null);