Home | History | Annotate | Download | only in harmony 
      1 // Copyright 2016 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: --harmony-function-sent
      6 
      7 
      8 {
      9   function* g() { return function.sent }
     10   assertEquals({value: 42, done: true}, g().next(42));
     11 }
     12 
     13 
     14 {
     15   function* g() {
     16     try {
     17       yield function.sent;
     18     } finally {
     19       yield function.sent;
     20       return function.sent;
     21     }
     22   }
     23 
     24   {
     25     let x = g();
     26     assertEquals({value: 1, done: false}, x.next(1));
     27     assertEquals({value: 2, done: false}, x.next(2));
     28     assertEquals({value: 3, done: true}, x.next(3));
     29   }
     30 
     31   {
     32     let x = g();
     33     assertEquals({value: 1, done: false}, x.next(1));
     34     assertEquals({value: 2, done: false}, x.throw(2));
     35     assertEquals({value: 3, done: true}, x.next(3));
     36   }
     37 
     38   {
     39     let x = g();
     40     assertEquals({value: 1, done: false}, x.next(1));
     41     assertEquals({value: 2, done: false}, x.return(2));
     42     assertEquals({value: 3, done: true}, x.next(3));
     43   }
     44 }
     45 
     46 
     47 {
     48   function* inner() {
     49     try {
     50       yield function.sent;
     51     } finally {
     52       return 23;
     53     }
     54   }
     55 
     56   function* g() {
     57     yield function.sent;
     58     yield* inner();
     59     return function.sent;
     60   }
     61 
     62   {
     63     let x = g();
     64     assertEquals({value: 1, done: false}, x.next(1));
     65     assertEquals({value: undefined, done: false}, x.next(2));
     66     assertEquals({value: 3, done: true}, x.next(3));
     67   }
     68 
     69   {
     70     let x = g();
     71     assertEquals({value: 1, done: false}, x.next(1));
     72     assertEquals({value: undefined, done: false}, x.next(2));
     73     assertEquals({value: 42, done: true}, x.throw(42));
     74   }
     75 
     76   {
     77     let x = g();
     78     assertEquals({value: 1, done: false}, x.next(1));
     79     assertEquals({value: undefined, done: false}, x.next(2));
     80     assertEquals({value: 23, done: true}, x.return(42));
     81   }
     82 }
     83 
     84 
     85 assertThrows("function f() { return function.sent }", SyntaxError);
     86 assertThrows("() => { return function.sent }", SyntaxError);
     87 assertThrows("() => { function.sent }", SyntaxError);
     88 assertThrows("() => function.sent", SyntaxError);
     89 assertThrows("({*f() { function.sent }})", SyntaxError);
     90 assertDoesNotThrow("({*f() { return function.sent }})");
     91