summaryrefslogtreecommitdiff
path: root/deps/v8/test/mjsunit/harmony/iterator-close.js
diff options
context:
space:
mode:
Diffstat (limited to 'deps/v8/test/mjsunit/harmony/iterator-close.js')
-rw-r--r--deps/v8/test/mjsunit/harmony/iterator-close.js364
1 files changed, 364 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/iterator-close.js b/deps/v8/test/mjsunit/harmony/iterator-close.js
new file mode 100644
index 0000000000..94785de51f
--- /dev/null
+++ b/deps/v8/test/mjsunit/harmony/iterator-close.js
@@ -0,0 +1,364 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --harmony-iterator-close
+
+function* g() { yield 42; return 88 };
+
+
+// Return method is "undefined".
+{
+ g.prototype.return = null;
+
+ assertEquals(undefined, (() => {
+ for (let x of g()) { break; }
+ })());
+
+ assertEquals(undefined, (() => {
+ for (x of g()) { break; }
+ })());
+
+ assertThrowsEquals(() => {
+ for (let x of g()) { throw 42; }
+ }, 42);
+
+ assertThrowsEquals(() => {
+ for (x of g()) { throw 42; }
+ }, 42);
+
+ assertEquals(42, (() => {
+ for (let x of g()) { return 42; }
+ })());
+
+ assertEquals(42, (() => {
+ for (x of g()) { return 42; }
+ })());
+
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+}
+
+
+// Return method is not callable.
+{
+ g.prototype.return = 666;
+
+ assertThrows(() => {
+ for (let x of g()) { break; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { break; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (let x of g()) { throw 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { throw 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (let x of g()) { return 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { return 666; }
+ }, TypeError);
+
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+}
+
+
+// Return method does not return an object.
+{
+ g.prototype.return = () => 666;
+
+ assertThrows(() => {
+ for (let x of g()) { break; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { break; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (let x of g()) { throw 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { throw 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (let x of g()) { return 666; }
+ }, TypeError);
+
+ assertThrows(() => {
+ for (x of g()) { return 666; }
+ }, TypeError);
+
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+
+ assertEquals(42, eval('for (x of g()) { x; }'));
+}
+
+
+// Return method returns an object.
+{
+ let log = [];
+ g.prototype.return = (...args) => { log.push(args); return {} };
+
+ log = [];
+ for (let x of g()) { break; }
+ assertEquals([[]], log);
+
+ log = [];
+ for (x of g()) { break; }
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g()) { throw 42; }
+ }, 42);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (x of g()) { throw 42; }
+ }, 42);
+ assertEquals([[]], log);
+
+ log = [];
+ assertEquals(42, (() => {
+ for (let x of g()) { return 42; }
+ })());
+ assertEquals([[]], log);
+
+ log = [];
+ assertEquals(42, (() => {
+ for (x of g()) { return 42; }
+ })());
+ assertEquals([[]], log);
+
+ log = [];
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+ assertEquals([], log);
+
+ log = [];
+ assertEquals(42, eval('for (x of g()) { x; }'));
+ assertEquals([], log);
+}
+
+
+// Return method throws.
+{
+ let log = [];
+ g.prototype.return = (...args) => { log.push(args); throw 23 };
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g()) { break; }
+ }, 23);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (x of g()) { break; }
+ }, 23);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g()) { throw 42; }
+ }, 42);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (x of g()) { throw 42; }
+ }, 42);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g()) { return 42; }
+ }, 23);
+ assertEquals([[]], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (x of g()) { return 42; }
+ }, 23);
+ assertEquals([[]], log);
+
+ log = [];
+ assertEquals(42, eval('for (let x of g()) { x; }'));
+ assertEquals([], log);
+
+ log = [];
+ assertEquals(42, eval('for (x of g()) { x; }'));
+ assertEquals([], log);
+}
+
+
+// Next method throws.
+{
+ g.prototype.next = () => { throw 666; };
+ g.prototype.return = () => { assertUnreachable() };
+
+ assertThrowsEquals(() => {
+ for (let x of g()) {}
+ }, 666);
+
+ assertThrowsEquals(() => {
+ for (x of g()) {}
+ }, 666);
+}
+
+
+// Nested loops.
+{
+ function* g1() { yield 1; yield 2; throw 3; }
+ function* g2() { yield -1; yield -2; throw -3; }
+
+ assertDoesNotThrow(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break;
+ }
+ if (x == 2) break;
+ }
+ }, -3);
+
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ }
+ }
+ }, -3);
+
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break;
+ }
+ }
+ }, 3);
+
+ assertDoesNotThrow(() => {
+ l: for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break l;
+ }
+ }
+ });
+
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ throw 4;
+ }
+ }
+ }, 4);
+
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) throw 4;
+ }
+ }
+ }, 4);
+
+ let log = [];
+ g1.prototype.return = () => { log.push(1); throw 5 };
+ g2.prototype.return = () => { log.push(2); throw -5 };
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break;
+ }
+ if (x == 2) break;
+ }
+ }, -5);
+ assertEquals([2, 1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ }
+ }
+ }, -3);
+ assertEquals([1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break;
+ }
+ }
+ }, -5);
+ assertEquals([2, 1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ l: for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) break l;
+ }
+ }
+ }, -5);
+ assertEquals([2, 1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ throw 4;
+ }
+ }
+ }, 4);
+ assertEquals([2, 1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ for (let y of g2()) {
+ if (y == -2) throw 4;
+ }
+ }
+ }, 4);
+ assertEquals([2, 1], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ try {
+ for (let y of g2()) {
+ }
+ } catch (_) {}
+ }
+ }, 3);
+ assertEquals([], log);
+
+ log = [];
+ assertThrowsEquals(() => {
+ for (let x of g1()) {
+ try {
+ for (let y of g2()) {
+ }
+ } catch (_) {}
+ if (x == 2) break;
+ }
+ }, 5);
+ assertEquals([1], log);
+}
View Lorry Controller Status