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// Copyright 2014 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
// Test the mirror object for functions.
function *generator(f) {
"use strict";
yield;
f();
yield;
}
function MirrorRefCache(json_refs) {
var tmp = eval('(' + json_refs + ')');
this.refs_ = [];
for (var i = 0; i < tmp.length; i++) {
this.refs_[tmp[i].handle] = tmp[i];
}
}
MirrorRefCache.prototype.lookup = function(handle) {
return this.refs_[handle];
}
function TestGeneratorMirror(g, status, line, column, receiver) {
// Create mirror and JSON representation.
var mirror = debug.MakeMirror(g);
var serializer = debug.MakeMirrorSerializer();
var json = JSON.stringify(serializer.serializeValue(mirror));
var refs = new MirrorRefCache(
JSON.stringify(serializer.serializeReferencedObjects()));
// Check the mirror hierachy.
assertTrue(mirror instanceof debug.Mirror);
assertTrue(mirror instanceof debug.ValueMirror);
assertTrue(mirror instanceof debug.ObjectMirror);
assertTrue(mirror instanceof debug.GeneratorMirror);
// Check the mirror properties.
assertTrue(mirror.isGenerator());
assertEquals('generator', mirror.type());
assertFalse(mirror.isPrimitive());
assertEquals('Generator', mirror.className());
assertEquals(receiver, mirror.receiver().value());
assertEquals(generator, mirror.func().value());
assertEquals(status, mirror.status());
// Note that line numbers are 0-based, not 1-based.
var loc = mirror.sourceLocation();
if (status === 'suspended') {
assertTrue(!!loc);
assertEquals(line, loc.line);
assertEquals(column, loc.column);
} else {
assertEquals(undefined, loc);
}
TestInternalProperties(mirror, status, receiver);
}
function TestInternalProperties(mirror, status, receiver) {
var properties = mirror.internalProperties();
assertEquals(3, properties.length);
assertEquals("[[GeneratorStatus]]", properties[0].name());
assertEquals(status, properties[0].value().value());
assertEquals("[[GeneratorFunction]]", properties[1].name());
assertEquals(generator, properties[1].value().value());
assertEquals("[[GeneratorReceiver]]", properties[2].name());
assertEquals(receiver, properties[2].value().value());
}
var iter = generator(function() {
var mirror = debug.MakeMirror(iter);
assertEquals('running', mirror.status());
assertEquals(undefined, mirror.sourceLocation());
TestInternalProperties(mirror, 'running');
});
TestGeneratorMirror(iter, 'suspended', 7, 19);
iter.next();
TestGeneratorMirror(iter, 'suspended', 9, 2);
iter.next();
TestGeneratorMirror(iter, 'suspended', 11, 2);
iter.next();
TestGeneratorMirror(iter, 'closed');
// Test generator with receiver.
var obj = {foo: 42};
var iter2 = generator.call(obj, function() {
var mirror = debug.MakeMirror(iter2);
assertEquals('running', mirror.status());
assertEquals(undefined, mirror.sourceLocation());
TestInternalProperties(mirror, 'running', obj);
});
TestGeneratorMirror(iter2, 'suspended', 7, 19, obj);
iter2.next();
TestGeneratorMirror(iter2, 'suspended', 9, 2, obj);
iter2.next();
TestGeneratorMirror(iter2, 'suspended', 11, 2, obj);
iter2.next();
TestGeneratorMirror(iter2, 'closed', 0, 0, obj);
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