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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Flags: --harmony-iteration --harmony-scoping
     29 
     30 // Test for-of syntax.
     31 
     32 "use strict";
     33 
     34 function f() { for (x of y) { } }
     35 function f() { for (var x of y) { } }
     36 function f() { for (let x of y) { } }
     37 
     38 assertThrows("function f() { for (x of) { } }", SyntaxError);
     39 assertThrows("function f() { for (x of y z) { } }", SyntaxError);
     40 assertThrows("function f() { for (x of y;) { } }", SyntaxError);
     41 
     42 assertThrows("function f() { for (var x of) { } }", SyntaxError);
     43 assertThrows("function f() { for (var x of y z) { } }", SyntaxError);
     44 assertThrows("function f() { for (var x of y;) { } }", SyntaxError);
     45 
     46 assertThrows("function f() { for (let x of) { } }", SyntaxError);
     47 assertThrows("function f() { for (let x of y z) { } }", SyntaxError);
     48 assertThrows("function f() { for (let x of y;) { } }", SyntaxError);
     49 
     50 assertThrows("function f() { for (of y) { } }", SyntaxError);
     51 assertThrows("function f() { for (of of) { } }", SyntaxError);
     52 assertThrows("function f() { for (var of y) { } }", SyntaxError);
     53 assertThrows("function f() { for (var of of) { } }", SyntaxError);
     54 assertThrows("function f() { for (let of y) { } }", SyntaxError);
     55 assertThrows("function f() { for (let of of) { } }", SyntaxError);
     56 
     57 assertThrows("function f() { for (x = 3 of y) { } }", SyntaxError);
     58 assertThrows("function f() { for (var x = 3 of y) { } }", SyntaxError);
     59 assertThrows("function f() { for (let x = 3 of y) { } }", SyntaxError);
     60 
     61 
     62 // Alack, this appears to be valid.
     63 function f() { for (of of y) { } }
     64 function f() { for (let of of y) { } }
     65 function f() { for (var of of y) { } }
     66 
     67 // This too, of course.
     68 function f() { for (of in y) { } }
     69 function f() { for (var of in y) { } }
     70 function f() { for (let of in y) { } }
     71