mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
674 lines
20 KiB
674 lines
20 KiB
// 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: --expose-gc
|
|
|
|
// Test generator iteration.
|
|
|
|
var GeneratorFunction = (function*(){yield 1;}).__proto__.constructor;
|
|
|
|
function assertIteratorResult(value, done, result) {
|
|
assertEquals({ value: value, done: done}, result);
|
|
}
|
|
|
|
function assertIteratorIsClosed(iter) {
|
|
assertIteratorResult(undefined, true, iter.next());
|
|
assertDoesNotThrow(function() { iter.next(); });
|
|
}
|
|
|
|
function assertThrownIteratorIsClosed(iter) {
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
|
|
function TestGeneratorResultPrototype() {
|
|
function* g() { yield 1; }
|
|
var iter = g();
|
|
var result = iter.next();
|
|
|
|
assertSame(Object.prototype, Object.getPrototypeOf(result));
|
|
property_names = Object.getOwnPropertyNames(result);
|
|
property_names.sort();
|
|
assertEquals(["done", "value"], property_names);
|
|
assertIteratorResult(1, false, result);
|
|
}
|
|
TestGeneratorResultPrototype()
|
|
|
|
function TestGenerator(g, expected_values_for_next,
|
|
send_val, expected_values_for_send) {
|
|
function testNext(thunk) {
|
|
var iter = thunk();
|
|
for (var i = 0; i < expected_values_for_next.length; i++) {
|
|
var v1 = expected_values_for_next[i];
|
|
var v2 = i == expected_values_for_next.length - 1;
|
|
// var v3 = iter.next();
|
|
assertIteratorResult(v1, v2, iter.next());
|
|
}
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
function testSend(thunk) {
|
|
var iter = thunk();
|
|
for (var i = 0; i < expected_values_for_send.length; i++) {
|
|
assertIteratorResult(expected_values_for_send[i],
|
|
i == expected_values_for_send.length - 1,
|
|
iter.next(send_val));
|
|
}
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
function testThrow(thunk) {
|
|
for (var i = 0; i < expected_values_for_next.length; i++) {
|
|
var iter = thunk();
|
|
for (var j = 0; j < i; j++) {
|
|
assertIteratorResult(expected_values_for_next[j],
|
|
j == expected_values_for_next.length - 1,
|
|
iter.next());
|
|
}
|
|
function Sentinel() {}
|
|
assertThrows(function () { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
}
|
|
|
|
testNext(g);
|
|
testSend(g);
|
|
testThrow(g);
|
|
|
|
testNext(function*() { return yield* g(); });
|
|
testSend(function*() { return yield* g(); });
|
|
testThrow(function*() { return yield* g(); });
|
|
|
|
if (g instanceof GeneratorFunction) {
|
|
testNext(g);
|
|
testSend(g);
|
|
testThrow(g);
|
|
}
|
|
}
|
|
|
|
TestGenerator(function* g1() { },
|
|
[undefined],
|
|
"foo",
|
|
[undefined]);
|
|
|
|
TestGenerator(function* g2() { yield 1; },
|
|
[1, undefined],
|
|
"foo",
|
|
[1, undefined]);
|
|
|
|
TestGenerator(function* g3() { yield 1; yield 2; },
|
|
[1, 2, undefined],
|
|
"foo",
|
|
[1, 2, undefined]);
|
|
|
|
TestGenerator(function* g4() { yield 1; yield 2; return 3; },
|
|
[1, 2, 3],
|
|
"foo",
|
|
[1, 2, 3]);
|
|
|
|
TestGenerator(function* g5() { return 1; },
|
|
[1],
|
|
"foo",
|
|
[1]);
|
|
|
|
TestGenerator(function* g6() { var x = yield 1; return x; },
|
|
[1, undefined],
|
|
"foo",
|
|
[1, "foo"]);
|
|
|
|
TestGenerator(function* g7() { var x = yield 1; yield 2; return x; },
|
|
[1, 2, undefined],
|
|
"foo",
|
|
[1, 2, "foo"]);
|
|
|
|
TestGenerator(function* g8() { for (var x = 0; x < 4; x++) { yield x; } },
|
|
[0, 1, 2, 3, undefined],
|
|
"foo",
|
|
[0, 1, 2, 3, undefined]);
|
|
|
|
// Generator with arguments.
|
|
TestGenerator(
|
|
function g9() {
|
|
return (function*(a, b, c, d) {
|
|
yield a; yield b; yield c; yield d;
|
|
})("fee", "fi", "fo", "fum");
|
|
},
|
|
["fee", "fi", "fo", "fum", undefined],
|
|
"foo",
|
|
["fee", "fi", "fo", "fum", undefined]);
|
|
|
|
// Too few arguments.
|
|
TestGenerator(
|
|
function g10() {
|
|
return (function*(a, b, c, d) {
|
|
yield a; yield b; yield c; yield d;
|
|
})("fee", "fi");
|
|
},
|
|
["fee", "fi", undefined, undefined, undefined],
|
|
"foo",
|
|
["fee", "fi", undefined, undefined, undefined]);
|
|
|
|
// Too many arguments.
|
|
TestGenerator(
|
|
function g11() {
|
|
return (function*(a, b, c, d) {
|
|
yield a; yield b; yield c; yield d;
|
|
})("fee", "fi", "fo", "fum", "I smell the blood of an Englishman");
|
|
},
|
|
["fee", "fi", "fo", "fum", undefined],
|
|
"foo",
|
|
["fee", "fi", "fo", "fum", undefined]);
|
|
|
|
// The arguments object.
|
|
TestGenerator(
|
|
function g12() {
|
|
return (function*(a, b, c, d) {
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
yield arguments[i];
|
|
}
|
|
})("fee", "fi", "fo", "fum", "I smell the blood of an Englishman");
|
|
},
|
|
["fee", "fi", "fo", "fum", "I smell the blood of an Englishman",
|
|
undefined],
|
|
"foo",
|
|
["fee", "fi", "fo", "fum", "I smell the blood of an Englishman",
|
|
undefined]);
|
|
|
|
// Access to captured free variables.
|
|
TestGenerator(
|
|
function g13() {
|
|
return (function(a, b, c, d) {
|
|
return (function*() {
|
|
yield a; yield b; yield c; yield d;
|
|
})();
|
|
})("fee", "fi", "fo", "fum");
|
|
},
|
|
["fee", "fi", "fo", "fum", undefined],
|
|
"foo",
|
|
["fee", "fi", "fo", "fum", undefined]);
|
|
|
|
// Abusing the arguments object.
|
|
TestGenerator(
|
|
function g14() {
|
|
return (function*(a, b, c, d) {
|
|
arguments[0] = "Be he live";
|
|
arguments[1] = "or be he dead";
|
|
arguments[2] = "I'll grind his bones";
|
|
arguments[3] = "to make my bread";
|
|
yield a; yield b; yield c; yield d;
|
|
})("fee", "fi", "fo", "fum");
|
|
},
|
|
["Be he live", "or be he dead", "I'll grind his bones", "to make my bread",
|
|
undefined],
|
|
"foo",
|
|
["Be he live", "or be he dead", "I'll grind his bones", "to make my bread",
|
|
undefined]);
|
|
|
|
// Abusing the arguments object: strict mode.
|
|
TestGenerator(
|
|
function g15() {
|
|
return (function*(a, b, c, d) {
|
|
"use strict";
|
|
arguments[0] = "Be he live";
|
|
arguments[1] = "or be he dead";
|
|
arguments[2] = "I'll grind his bones";
|
|
arguments[3] = "to make my bread";
|
|
yield a; yield b; yield c; yield d;
|
|
})("fee", "fi", "fo", "fum");
|
|
},
|
|
["fee", "fi", "fo", "fum", undefined],
|
|
"foo",
|
|
["fee", "fi", "fo", "fum", undefined]);
|
|
|
|
// GC.
|
|
TestGenerator(function* g16() { yield "baz"; gc(); yield "qux"; },
|
|
["baz", "qux", undefined],
|
|
"foo",
|
|
["baz", "qux", undefined]);
|
|
|
|
// Receivers.
|
|
TestGenerator(
|
|
function g17() {
|
|
function* g() { yield this.x; yield this.y; }
|
|
var o = { start: g, x: 1, y: 2 };
|
|
return o.start();
|
|
},
|
|
[1, 2, undefined],
|
|
"foo",
|
|
[1, 2, undefined]);
|
|
|
|
TestGenerator(
|
|
function* g19() {
|
|
var x = 1;
|
|
yield x;
|
|
with({x:2}) { yield x; }
|
|
yield x;
|
|
},
|
|
[1, 2, 1, undefined],
|
|
"foo",
|
|
[1, 2, 1, undefined]);
|
|
|
|
TestGenerator(
|
|
function* g20() { yield (1 + (yield 2) + 3); },
|
|
[2, NaN, undefined],
|
|
"foo",
|
|
[2, "1foo3", undefined]);
|
|
|
|
TestGenerator(
|
|
function* g21() { return (1 + (yield 2) + 3); },
|
|
[2, NaN],
|
|
"foo",
|
|
[2, "1foo3"]);
|
|
|
|
TestGenerator(
|
|
function* g22() { yield (1 + (yield 2) + 3); yield (4 + (yield 5) + 6); },
|
|
[2, NaN, 5, NaN, undefined],
|
|
"foo",
|
|
[2, "1foo3", 5, "4foo6", undefined]);
|
|
|
|
TestGenerator(
|
|
function* g23() {
|
|
return (yield (1 + (yield 2) + 3)) + (yield (4 + (yield 5) + 6));
|
|
},
|
|
[2, NaN, 5, NaN, NaN],
|
|
"foo",
|
|
[2, "1foo3", 5, "4foo6", "foofoo"]);
|
|
|
|
// Rewind a try context with and without operands on the stack.
|
|
TestGenerator(
|
|
function* g24() {
|
|
try {
|
|
return (yield (1 + (yield 2) + 3)) + (yield (4 + (yield 5) + 6));
|
|
} catch (e) {
|
|
throw e;
|
|
}
|
|
},
|
|
[2, NaN, 5, NaN, NaN],
|
|
"foo",
|
|
[2, "1foo3", 5, "4foo6", "foofoo"]);
|
|
|
|
// Yielding in a catch context, with and without operands on the stack.
|
|
TestGenerator(
|
|
function* g25() {
|
|
try {
|
|
throw (yield (1 + (yield 2) + 3))
|
|
} catch (e) {
|
|
if (typeof e == 'object') throw e;
|
|
return e + (yield (4 + (yield 5) + 6));
|
|
}
|
|
},
|
|
[2, NaN, 5, NaN, NaN],
|
|
"foo",
|
|
[2, "1foo3", 5, "4foo6", "foofoo"]);
|
|
|
|
// Yield with no arguments yields undefined.
|
|
TestGenerator(
|
|
function* g26() { return yield yield },
|
|
[undefined, undefined, undefined],
|
|
"foo",
|
|
[undefined, "foo", "foo"]);
|
|
|
|
// A newline causes the parser to stop looking for an argument to yield.
|
|
TestGenerator(
|
|
function* g27() {
|
|
yield
|
|
3
|
|
return
|
|
},
|
|
[undefined, undefined],
|
|
"foo",
|
|
[undefined, undefined]);
|
|
|
|
// TODO(wingo): We should use TestGenerator for these, except that
|
|
// currently yield* will unconditionally propagate a throw() to the
|
|
// delegate iterator, which fails for these iterators that don't have
|
|
// throw(). See http://code.google.com/p/v8/issues/detail?id=3484.
|
|
(function() {
|
|
function* g28() {
|
|
yield* [1, 2, 3];
|
|
}
|
|
var iter = g28();
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(undefined, true, iter.next());
|
|
})();
|
|
|
|
(function() {
|
|
function* g29() {
|
|
yield* "abc";
|
|
}
|
|
var iter = g29();
|
|
assertIteratorResult("a", false, iter.next());
|
|
assertIteratorResult("b", false, iter.next());
|
|
assertIteratorResult("c", false, iter.next());
|
|
assertIteratorResult(undefined, true, iter.next());
|
|
})();
|
|
|
|
// Generator function instances.
|
|
TestGenerator(GeneratorFunction(),
|
|
[undefined],
|
|
"foo",
|
|
[undefined]);
|
|
|
|
TestGenerator(new GeneratorFunction(),
|
|
[undefined],
|
|
"foo",
|
|
[undefined]);
|
|
|
|
TestGenerator(GeneratorFunction('yield 1;'),
|
|
[1, undefined],
|
|
"foo",
|
|
[1, undefined]);
|
|
|
|
TestGenerator(
|
|
function() { return GeneratorFunction('x', 'y', 'yield x + y;')(1, 2) },
|
|
[3, undefined],
|
|
"foo",
|
|
[3, undefined]);
|
|
|
|
// Access to this with formal arguments.
|
|
TestGenerator(
|
|
function () {
|
|
return ({ x: 42, g: function* (a) { yield this.x } }).g(0);
|
|
},
|
|
[42, undefined],
|
|
"foo",
|
|
[42, undefined]);
|
|
|
|
// Test that yield* validates iterator results.
|
|
function TestDelegatingYield(junk) {
|
|
var iterator = {next: () => junk};
|
|
var iterable = {[Symbol.iterator]: () => iterator};
|
|
function* g() { return yield* iterable };
|
|
assertThrows(() => g().next(), TypeError);
|
|
}
|
|
TestDelegatingYield();
|
|
TestDelegatingYield(null);
|
|
TestDelegatingYield(42);
|
|
TestDelegatingYield(true);
|
|
|
|
function TestTryCatch(instantiate) {
|
|
function* g() { yield 1; try { yield 2; } catch (e) { yield e; } yield 3; }
|
|
function Sentinel() {}
|
|
|
|
function Test1(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test1(instantiate(g));
|
|
|
|
function Test2(iter) {
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test2(instantiate(g));
|
|
|
|
function Test3(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test3(instantiate(g));
|
|
|
|
function Test4(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test4(instantiate(g));
|
|
|
|
function Test5(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test5(instantiate(g));
|
|
|
|
function Test6(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test6(instantiate(g));
|
|
|
|
function Test7(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test7(instantiate(g));
|
|
}
|
|
TestTryCatch(function (g) { return g(); });
|
|
TestTryCatch(function* (g) { return yield* g(); });
|
|
|
|
function TestTryFinally(instantiate) {
|
|
function* g() { yield 1; try { yield 2; } finally { yield 3; } yield 4; }
|
|
function Sentinel() {}
|
|
function Sentinel2() {}
|
|
|
|
function Test1(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test1(instantiate(g));
|
|
|
|
function Test2(iter) {
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test2(instantiate(g));
|
|
|
|
function Test3(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test3(instantiate(g));
|
|
|
|
function Test4(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.throw(new Sentinel));
|
|
assertThrows(function() { iter.next(); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test4(instantiate(g));
|
|
|
|
function Test5(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.throw(new Sentinel));
|
|
assertThrows(function() { iter.throw(new Sentinel2); }, Sentinel2);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test5(instantiate(g));
|
|
|
|
function Test6(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test6(instantiate(g));
|
|
|
|
function Test7(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.next());
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test7(instantiate(g));
|
|
|
|
function Test8(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test8(instantiate(g));
|
|
}
|
|
TestTryFinally(function (g) { return g(); });
|
|
TestTryFinally(function* (g) { return yield* g(); });
|
|
|
|
function TestNestedTry(instantiate) {
|
|
function* g() {
|
|
try {
|
|
yield 1;
|
|
try { yield 2; } catch (e) { yield e; }
|
|
yield 3;
|
|
} finally {
|
|
yield 4;
|
|
}
|
|
yield 5;
|
|
}
|
|
function Sentinel() {}
|
|
function Sentinel2() {}
|
|
|
|
function Test1(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.next());
|
|
assertIteratorResult(5, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test1(instantiate(g));
|
|
|
|
function Test2(iter) {
|
|
assertThrows(function() { iter.throw(new Sentinel); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test2(instantiate(g));
|
|
|
|
function Test3(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(4, false, iter.throw(new Sentinel));
|
|
assertThrows(function() { iter.next(); }, Sentinel);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test3(instantiate(g));
|
|
|
|
function Test4(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(4, false, iter.throw(new Sentinel));
|
|
assertThrows(function() { iter.throw(new Sentinel2); }, Sentinel2);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test4(instantiate(g));
|
|
|
|
function Test5(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.next());
|
|
assertIteratorResult(5, false, iter.next());
|
|
assertIteratorIsClosed(iter);
|
|
}
|
|
Test5(instantiate(g));
|
|
|
|
function Test6(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertIteratorResult(4, false, iter.throw(new Sentinel2));
|
|
assertThrows(function() { iter.next(); }, Sentinel2);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test6(instantiate(g));
|
|
|
|
function Test7(iter) {
|
|
assertIteratorResult(1, false, iter.next());
|
|
assertIteratorResult(2, false, iter.next());
|
|
var exn = new Sentinel;
|
|
assertIteratorResult(exn, false, iter.throw(exn));
|
|
assertIteratorResult(3, false, iter.next());
|
|
assertIteratorResult(4, false, iter.throw(new Sentinel2));
|
|
assertThrows(function() { iter.next(); }, Sentinel2);
|
|
assertThrownIteratorIsClosed(iter);
|
|
}
|
|
Test7(instantiate(g));
|
|
|
|
// That's probably enough.
|
|
}
|
|
TestNestedTry(function (g) { return g(); });
|
|
TestNestedTry(function* (g) { return yield* g(); });
|
|
|
|
function TestRecursion() {
|
|
function TestNextRecursion() {
|
|
function* g() { yield iter.next(); }
|
|
var iter = g();
|
|
return iter.next();
|
|
}
|
|
function TestSendRecursion() {
|
|
function* g() { yield iter.next(42); }
|
|
var iter = g();
|
|
return iter.next();
|
|
}
|
|
function TestThrowRecursion() {
|
|
function* g() { yield iter.throw(1); }
|
|
var iter = g();
|
|
return iter.next();
|
|
}
|
|
assertThrows(TestNextRecursion, Error);
|
|
assertThrows(TestSendRecursion, Error);
|
|
assertThrows(TestThrowRecursion, Error);
|
|
}
|
|
TestRecursion();
|
|
|
|
|
|
// Test yield* on non-iterable objects.
|
|
function* g(junk) { return yield* junk }
|
|
var non_iterables = [
|
|
42,
|
|
{[Symbol.iterator]: 42},
|
|
{[Symbol.iterator]: () => 42},
|
|
{[Symbol.iterator]: () => ({next: 42})},
|
|
];
|
|
for (let junk of non_iterables) {
|
|
assertThrows(() => g(junk).next(), TypeError);
|
|
}
|
|
|