node/deps/v8/test/mjsunit/debug-evaluate-nested-let.js
Michaël Zasso 2cc2951796
deps: update V8 to 5.1.281.69
Pick up the latest branch-head for V8 5.1. This branch brings in
improved language support and performance improvements. For full
details: http://v8project.blogspot.com/2016/04/v8-release-51.html

* Picks up the latest branch head for 5.1 [1]
* Edit v8 gitignore to allow trace_event copy
* Update V8 DEP trace_event as per deps/v8/DEPS [2]

[1] https://chromium.googlesource.com/v8/v8.git/+/dc81244
[2] https://chromium.googlesource.com/chromium/src/base/trace_event/common/+/c8c8665

PR-URL: https://github.com/nodejs/node/pull/7016
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2016-06-29 09:04:28 +02:00

53 lines
1.1 KiB
JavaScript

// Copyright 2016 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.
// Flags: --expose-debug-as debug --allow-natives-syntax
Debug = debug.Debug
var exception = null;
function f() {
let a = 0;
function g() {
let a = 1;
{
let a = 2;
debugger; // Breakpoint.
if (a !== 3) {
// We cannot change stack locals in optimized frames.
assertEquals(2, a);
assertOptimized(g);
}
}
assertEquals(1, a);
}
g.call(1);
if (a !== 4) {
// We cannot change stack locals in optimized frames.
assertEquals(0, a);
assertOptimized(f);
}
}
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
exec_state.frame(0).evaluate("a = 3");
exec_state.frame(1).evaluate("a = 4");
assertThrows(() => exec_state.frame(0).evaluate("this = 2"));
} catch (e) {
exception = e;
print("Caught something. " + e + " " + e.stack);
};
};
Debug.setListener(listener);
f();
Debug.setListener(null);
assertNull(exception);