Stage ES6 generators

test/mjsunit/harmony/generators-parsing.js

Index: test/mjsunit/harmony/generators-parsing.js
diff --git a/test/mjsunit/harmony/generators-parsing.js b/test/mjsunit/harmony/generators-parsing.js
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-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Flags: --harmony-generators
-
-// Test basic generator syntax.
-
-// Yield statements.
-function* g() { yield 3; yield 4; }
-
-// Yield expressions.
-function* g() { (yield 3) + (yield 4); }
-
-// Yield without a RHS.
-function* g() { yield; }
-function* g() { yield }
-function* g() {
-  yield
-}
-function* g() { (yield) }
-function* g() { [yield] }
-function* g() { {yield} }
-function* g() { yield, yield }
-function* g() { yield; yield }
-function* g() { (yield) ? yield : yield }
-function* g() {
-  (yield)
-  ? yield
-  : yield
-}
-
-// If yield has a RHS, it needs to start on the same line.  The * in a
-// yield* counts as starting the RHS.
-function* g() {
-  yield *
-  foo
-}
-assertThrows("function* g() { yield\n* foo }", SyntaxError);
-assertEquals(undefined,
-             (function*(){
-               yield
-               3
-             })().next().value);
-
-// A YieldExpression is not a LogicalORExpression.
-assertThrows("function* g() { yield ? yield : yield }", SyntaxError);
-
-// You can have a generator in strict mode.
-function* g() { "use strict"; yield 3; yield 4; }
-
-// Generators can have return statements also, which internally parse to a kind
-// of yield expression.
-function* g() { yield 1; return; }
-function* g() { yield 1; return 2; }
-function* g() { yield 1; return 2; yield "dead"; }
-
-// Generator expression.
-(function* () { yield 3; });
-
-// Named generator expression.
-(function* g() { yield 3; });
-
-// You can have a generator without a yield.
-function* g() { }
-
-// A YieldExpression is valid as the RHS of a YieldExpression.
-function* g() { yield yield 1; }
-function* g() { yield 3 + (yield 4); }
-
-// Generator definitions with a name of "yield" are not specifically ruled out
-// by the spec, as the `yield' name is outside the generator itself.  However,
-// in strict-mode, "yield" is an invalid identifier.
-function* yield() { (yield 3) + (yield 4); }
-assertThrows("function* yield() { \"use strict\"; (yield 3) + (yield 4); }",
-             SyntaxError);
-
-// In sloppy mode, yield is a normal identifier, outside of generators.
-function yield(yield) { yield: yield (yield + yield (0)); }
-
-// Yield is always valid as a key in an object literal.
-({ yield: 1 });
-function* g() { yield ({ yield: 1 }) }
-function* g() { yield ({ get yield() { return 1; }}) }
-
-// Checks that yield is a valid label in sloppy mode, but not valid in a strict
-// mode or in generators.
-function f() { yield: 1 }
-assertThrows("function f() { \"use strict\"; yield: 1 }", SyntaxError)
-assertThrows("function* g() { yield: 1 }", SyntaxError)
-
-// Yield is only a keyword in the body of the generator, not in nested
-// functions.
-function* g() { function f() { yield (yield + yield (0)); } }
-
-// Yield in a generator is not an identifier.
-assertThrows("function* g() { yield = 10; }", SyntaxError);
-
-// Yield binds very loosely, so this parses as "yield (3 + yield 4)", which is
-// invalid.
-assertThrows("function* g() { yield 3 + yield 4; }", SyntaxError);
-
-// Yield is still a future-reserved-word in strict mode
-assertThrows("function f() { \"use strict\"; var yield = 13; }", SyntaxError);
-
-// The name of the NFE is let-bound in G, so is invalid.
-assertThrows("function* g() { yield (function yield() {}); }", SyntaxError);
-
-// In generators, yield is invalid as a formal argument name.
-assertThrows("function* g(yield) { yield (10); }", SyntaxError);