cec0acad38
BUG=v8:3292 R=yangguo@chromium.org, wingo@igalia.com LOG=N Review URL: https://codereview.chromium.org/760303002 Cr-Commit-Position: refs/heads/master@{#25571}
113 lines
3.3 KiB
JavaScript
113 lines
3.3 KiB
JavaScript
// Copyright 2014 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 the mirror object for functions.
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function *generator(f) {
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"use strict";
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yield;
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f();
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yield;
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}
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function MirrorRefCache(json_refs) {
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var tmp = eval('(' + json_refs + ')');
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this.refs_ = [];
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for (var i = 0; i < tmp.length; i++) {
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this.refs_[tmp[i].handle] = tmp[i];
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}
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}
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MirrorRefCache.prototype.lookup = function(handle) {
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return this.refs_[handle];
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}
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function TestGeneratorMirror(g, status, line, column, receiver) {
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// Create mirror and JSON representation.
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var mirror = debug.MakeMirror(g);
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var serializer = debug.MakeMirrorSerializer();
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var json = JSON.stringify(serializer.serializeValue(mirror));
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var refs = new MirrorRefCache(
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JSON.stringify(serializer.serializeReferencedObjects()));
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// Check the mirror hierachy.
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assertTrue(mirror instanceof debug.Mirror);
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assertTrue(mirror instanceof debug.ValueMirror);
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assertTrue(mirror instanceof debug.ObjectMirror);
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assertTrue(mirror instanceof debug.GeneratorMirror);
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// Check the mirror properties.
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assertTrue(mirror.isGenerator());
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assertEquals('generator', mirror.type());
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assertFalse(mirror.isPrimitive());
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assertEquals('Generator', mirror.className());
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assertEquals(receiver, mirror.receiver().value());
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assertEquals(generator, mirror.func().value());
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assertEquals(status, mirror.status());
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// Note that line numbers are 0-based, not 1-based.
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var loc = mirror.sourceLocation();
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if (status === 'suspended') {
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assertTrue(!!loc);
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assertEquals(line, loc.line);
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assertEquals(column, loc.column);
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} else {
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assertEquals(undefined, loc);
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}
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TestInternalProperties(mirror, status, receiver);
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}
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function TestInternalProperties(mirror, status, receiver) {
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var properties = mirror.internalProperties();
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assertEquals(3, properties.length);
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assertEquals("[[GeneratorStatus]]", properties[0].name());
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assertEquals(status, properties[0].value().value());
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assertEquals("[[GeneratorFunction]]", properties[1].name());
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assertEquals(generator, properties[1].value().value());
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assertEquals("[[GeneratorReceiver]]", properties[2].name());
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assertEquals(receiver, properties[2].value().value());
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}
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var iter = generator(function() {
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var mirror = debug.MakeMirror(iter);
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assertEquals('running', mirror.status());
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assertEquals(undefined, mirror.sourceLocation());
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TestInternalProperties(mirror, 'running');
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});
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TestGeneratorMirror(iter, 'suspended', 7, 19);
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iter.next();
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TestGeneratorMirror(iter, 'suspended', 9, 2);
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iter.next();
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TestGeneratorMirror(iter, 'suspended', 11, 2);
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iter.next();
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TestGeneratorMirror(iter, 'closed');
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// Test generator with receiver.
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var obj = {foo: 42};
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var iter2 = generator.call(obj, function() {
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var mirror = debug.MakeMirror(iter2);
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assertEquals('running', mirror.status());
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assertEquals(undefined, mirror.sourceLocation());
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TestInternalProperties(mirror, 'running', obj);
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});
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TestGeneratorMirror(iter2, 'suspended', 7, 19, obj);
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iter2.next();
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TestGeneratorMirror(iter2, 'suspended', 9, 2, obj);
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iter2.next();
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TestGeneratorMirror(iter2, 'suspended', 11, 2, obj);
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iter2.next();
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TestGeneratorMirror(iter2, 'closed', 0, 0, obj);
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