40 lines
1011 B
JavaScript
40 lines
1011 B
JavaScript
|
// Copyright 2019 the V8 project authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
// Test that debug-evaluate properly shadows stack-allocated variables.
|
||
|
|
|
||
|
|
Debug = debug.Debug
|
||
|
|
|
||
|
|
let exception = null;
|
||
|
|
function listener(event, exec_state, event_data, data) {
|
||
|
|
if (event != Debug.DebugEvent.Break) return;
|
||
|
|
try {
|
||
|
|
assertEquals(2, exec_state.frame(0).evaluate("b").value());
|
||
|
|
assertEquals(3, exec_state.frame(0).evaluate("c").value())
|
||
|
|
assertThrows(() => exec_state.frame(0).evaluate("a").value());
|
||
|
|
} catch (e) {
|
||
|
|
exception = e;
|
||
|
|
print(e + e.stack);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Debug.setListener(listener);
|
||
|
|
|
||
|
|
(function f() {
|
||
|
|
let a = 1;
|
||
|
|
let b = 2;
|
||
|
|
let c = 3;
|
||
|
|
() => a + c; // a and c are context-allocated
|
||
|
|
return function g() {
|
||
|
|
let a = 2; // a is stack-allocated
|
||
|
|
return function h() {
|
||
|
|
b; // b is allocated onto f's context.
|
||
|
|
debugger;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
})()()();
|
||
|
|
|
||
|
|
Debug.setListener(null);
|
||
|
|
assertNull(exception);
|