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50930a0fa0
PR-URL: https://github.com/nodejs/node/pull/39469 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
61 lines
1.6 KiB
JavaScript
61 lines
1.6 KiB
JavaScript
// 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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Debug = debug.Debug
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var exception = null;
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var log = [];
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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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print(event_data.sourceLineText());
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var entry = "";
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for (var i = 0; i < exec_state.frameCount(); i++) {
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entry += exec_state.frame(i).sourceLineText().substr(-1);
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entry += exec_state.frame(i).sourceColumn();
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}
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log.push(entry);
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exec_state.prepareStep(Debug.StepAction.StepInto);
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} catch (e) {
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exception = e;
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}
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};
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var target = {};
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var handler = {
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has: function(target, name) {
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return true; // h
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}, // i
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get: function(target, name) {
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return 42; // j
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}, // k
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set: function(target, name, value) {
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return false; // l
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}, // m
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}
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var proxy = new Proxy(target, handler);
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Debug.setListener(listener);
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debugger; // a
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var has = "step" in proxy; // b
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var get = proxy.step; // c
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proxy.step = 43; // d
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Debug.setListener(null); // g
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assertNull(exception);
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assertTrue(has);
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assertEquals(42, get);
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assertEquals([
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"a0",
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"b10", "h4b17", "h16b17", // [[Has]]
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"c10", "j4c16", "j14c16", // [[Get]]
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"d0", "l4d11", "l17d11", // [[Set]]
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"g0"
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], log);
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