45 lines
1.3 KiB
JavaScript
45 lines
1.3 KiB
JavaScript
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// Copyright 2015 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-debug-as debug
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// Test that debug-evaluate only resolves variables that are used by
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// the function inside which we debug-evaluate. This is to avoid
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// incorrect variable resolution when a context-allocated variable is
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// shadowed by a stack-allocated variable.
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"use strict";
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var Debug = debug.Debug
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var exception = null;
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function listener(event, exec_state, event_data, data) {
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if (event != Debug.DebugEvent.Break) return;
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try {
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exec_state.frame(0).evaluate("var x = 2");
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exec_state.frame(0).evaluate("'use strict'; let y = 3");
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exec_state.frame(0).evaluate("var z = 4");
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exec_state.frame(0).evaluate("function bar() { return 5; }");
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} catch (e) {
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exception = e;
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print(e + e.stack);
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}
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}
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Debug.setListener(listener);
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var z = 1;
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(function() {
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debugger;
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})();
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assertEquals(2, x); // declaration
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assertThrows(() => y, ReferenceError); // let-declaration does not stick
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assertEquals(4, z); // re-declaration
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assertEquals(5, bar()); // function declaration
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Debug.setListener(null);
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assertNull(exception);
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