1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --expose-debug-as debug 6 // Test the mirror object for functions. 7 8 function *generator(f) { 9 "use strict"; 10 yield; 11 f(); 12 yield; 13 } 14 15 function MirrorRefCache(json_refs) { 16 var tmp = eval('(' + json_refs + ')'); 17 this.refs_ = []; 18 for (var i = 0; i < tmp.length; i++) { 19 this.refs_[tmp[i].handle] = tmp[i]; 20 } 21 } 22 23 MirrorRefCache.prototype.lookup = function(handle) { 24 return this.refs_[handle]; 25 } 26 27 function TestGeneratorMirror(g, test) { 28 // Create mirror and JSON representation. 29 var mirror = debug.MakeMirror(g); 30 var serializer = debug.MakeMirrorSerializer(); 31 var json = JSON.stringify(serializer.serializeValue(mirror)); 32 var refs = new MirrorRefCache( 33 JSON.stringify(serializer.serializeReferencedObjects())); 34 35 // Check the mirror hierachy. 36 assertTrue(mirror instanceof debug.Mirror); 37 assertTrue(mirror instanceof debug.ValueMirror); 38 assertTrue(mirror instanceof debug.ObjectMirror); 39 assertTrue(mirror instanceof debug.GeneratorMirror); 40 41 // Check the mirror properties. 42 assertTrue(mirror.isGenerator()); 43 assertEquals('generator', mirror.type()); 44 assertFalse(mirror.isPrimitive()); 45 assertEquals('Generator', mirror.className()); 46 47 assertTrue(mirror.receiver().isUndefined()); 48 assertEquals(generator, mirror.func().value()); 49 50 test(mirror); 51 } 52 53 var iter = generator(function () { 54 assertEquals('running', debug.MakeMirror(iter).status()); 55 }) 56 57 // Note that line numbers are 0-based, not 1-based. 58 function assertSourceLocation(loc, line, column) { 59 assertEquals(line, loc.line); 60 assertEquals(column, loc.column); 61 } 62 63 TestGeneratorMirror(iter, function (mirror) { 64 assertEquals('suspended', mirror.status()) 65 assertSourceLocation(mirror.sourceLocation(), 7, 19); 66 }); 67 68 iter.next(); 69 TestGeneratorMirror(iter, function (mirror) { 70 assertEquals('suspended', mirror.status()) 71 assertSourceLocation(mirror.sourceLocation(), 9, 2); 72 }); 73 74 iter.next(); 75 TestGeneratorMirror(iter, function (mirror) { 76 assertEquals('suspended', mirror.status()) 77 assertSourceLocation(mirror.sourceLocation(), 11, 2); 78 }); 79 80 iter.next(); 81 TestGeneratorMirror(iter, function (mirror) { 82 assertEquals('closed', mirror.status()) 83 assertEquals(undefined, mirror.sourceLocation()); 84 }); 85
