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debug-evaluate.js
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85 lines (71 loc) · 3.13 KB
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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.
Debug = debug.Debug
let listenerComplete = false;
let exceptionThrown = false;
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
assertEquals(3, exec_state.frame(0).evaluate("1+2").value());
assertEquals(5, exec_state.frame(0).evaluate("a+2").value());
assertEquals(4, exec_state.frame(0).evaluate("({a:1,b:2}).b+2").value());
assertEquals(3, exec_state.frame(0).evaluate("a").value());
assertEquals(2, exec_state.frame(1).evaluate("a").value());
assertEquals(1, exec_state.frame(2).evaluate("a").value());
assertEquals(1, exec_state.evaluateGlobal("a").value());
assertEquals(1, exec_state.evaluateGlobal("this.a").value());
assertEquals(longString,
exec_state.evaluateGlobal("this.longString").value());
// Indicate that all was processed.
listenerComplete = true;
}
} catch (e) {
exceptionThrown = true;
};
};
// Add the debug event listener.
Debug.setListener(listener);
function f() {
var a = 3;
};
function g() {
var a = 2;
f();
return a; // Use the value to prevent it being removed by DCE.
};
a = 1;
// String which is longer than 80 chars.
var longString = "1234567890_";
for (var i = 0; i < 4; i++) {
longString += longString;
}
// Set a break point at return in f and invoke g to hit the breakpoint.
Debug.setBreakPoint(f, 2, 0);
g();
assertFalse(exceptionThrown, "exception in listener");
// Make sure that the debug event listener vas invoked.
assertTrue(listenerComplete, "listener did not run to completion");