michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 384412;
michael@0: var summary = 'Exercise frame handling code';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0:  
michael@0: /*
michael@0:  * Generators
michael@0:  */
michael@0: 
michael@0: /* Generator yields properly */
michael@0:   f = (function(n) { for (var i = 0; i != n; i++) yield i });
michael@0:   g = f(3);
michael@0:   expect(0, g.next());
michael@0:   expect(1, g.next());
michael@0:   expect(2, g.next());
michael@0:   s = "no exception";
michael@0:   try { g.next(); } catch (e) { s = e + ""; }
michael@0:   expect("[object StopIteration]", s);
michael@0: 
michael@0: /* Generator yields properly in finally */
michael@0:   f = (function(n) {
michael@0:       try {
michael@0:         for (var i = 0; i != n; i++) 
michael@0:           yield i;
michael@0:       } finally {
michael@0:         yield "finally";
michael@0:       }
michael@0:     });
michael@0: 
michael@0:   g = f(3);
michael@0:   expect(0, g.next());
michael@0:   expect(1, g.next());
michael@0:   expect(2, g.next());
michael@0:   expect("finally", g.next());
michael@0: 
michael@0: /* Generator throws when closed with yield in finally */
michael@0:   g = f(3);
michael@0:   expect(0, g.next());
michael@0:   s = "no exception";
michael@0:   try { g.close(); } catch (e) { s = e + ""; };
michael@0:   expect("TypeError: yield from closing generator " + f.toSource(), s);
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * Calls that have been replaced with js_PushFrame() &c...
michael@0:  */
michael@0:   f = (function() { return arguments[(arguments.length - 1) / 2]; });
michael@0:   expect(2, f(1, 2, 3));
michael@0:   expect(2, f.call(null, 1, 2, 3));
michael@0:   expect(2, f.apply(null, [1, 2, 3]));
michael@0:   expect("a1c", "abc".replace("b", f));
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     "abc".replace("b", (function() { throw "hello" }));
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("hello", s);
michael@0:   expect(6, [1, 2, 3].reduce(function(a, b) { return a + b; }));
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     [1, 2, 3].reduce(function(a, b) { if (b == 2) throw "hello"; });
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("hello", s);
michael@0: 
michael@0: /*
michael@0:  * __noSuchMethod__
michael@0:  */
michael@0:   o = {};
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     o.hello();
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("TypeError: o.hello is not a function", s);
michael@0:   o.__noSuchMethod__ = (function() { return "world"; });
michael@0:   expect("world", o.hello());
michael@0:   o.__noSuchMethod__ = 1;
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     o.hello();
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("TypeError: o.hello is not a function", s);
michael@0:   o.__noSuchMethod__ = {};
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     o.hello();
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("TypeError: ({}) is not a function", s);
michael@0:   s = "no exception";
michael@0:   try {
michael@0:     eval("o.hello()");
michael@0:   } catch (e) {
michael@0:     s = e + "";
michael@0:   }
michael@0:   expect("TypeError: ({}) is not a function", s);
michael@0:   s = "no exception";
michael@0:   try { [2, 3, 0].sort({}); } catch (e) { s = e + ""; }
michael@0:   expect("TypeError: ({}) is not a function", s);
michael@0: 
michael@0: /*
michael@0:  * Generator expressions.
michael@0:  */
michael@0:   String.prototype.__iterator__ = (function () {
michael@0:       /*
michael@0:        * NOTE:
michael@0:        * Without the "0 + ", the loop over <x/> does not terminate because
michael@0:        * the iterator gets run on a string with an empty length property.
michael@0:        */
michael@0:       for (let i = 0; i != 0 + this.length; i++)
michael@0:         yield this[i];
michael@0:     });
michael@0:   expect(["a1", "a2", "a3", "b1", "b2", "b3", "c1", "c2", "c3"] + "",
michael@0:          ([a + b for (a in 'abc') for (b in '123')]) + "");
michael@0: 
michael@0:   print("End of Tests");
michael@0: 
michael@0: /*
michael@0:  * Utility functions
michael@0:  */
michael@0:   function expect(a, b) {
michael@0:     print('expect: ' + a + ', actual: ' + b);
michael@0:     reportCompare(a, b, summary);
michael@0:   }
michael@0: 
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }