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1340089 - Check the binding name in comprehensionFor.

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Gaming4JC 2019-06-09 17:20:09 -04:00 • committed by Roy Tam
commit e3244802ec
2 changed files with 109 additions and 0 deletions
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2
js/src/frontend/Parser.cpp
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@ -8101,6 +8101,8 @@ Parser<ParseHandler>::comprehensionFor(GeneratorKind comprehensionKind)
MUST_MATCH_TOKEN_FUNC(TokenKindIsPossibleIdentifier, JSMSG_NO_VARIABLE_NAME);
RootedPropertyName name(context, bindingIdentifier(YieldIsKeyword));
if (!name)
return null();
if (name == context->names().let) {
error(JSMSG_LET_COMP_BINDING);
return null();

107
js/src/tests/ecma_6/Comprehensions/for-reserved-word.js Normal file
View file

@ -0,0 +1,107 @@
var BUGNUMBER = 1340089;
var summary = "Comprehension should check the binding names";
print(BUGNUMBER + ": " + summary);
// Non strict mode.
// Keywords, literals, 'let', and 'yield' are not allowed.
assertThrowsInstanceOf(function () {
eval("[for (true of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("(for (true of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("[for (throw of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("(for (throw of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("[for (let of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("(for (let of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("[for (yield of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
eval("(for (yield of [1]) 2)");
}, SyntaxError);
eval("[for (public of [1]) 2]");
eval("(for (public of [1]) 2)");
eval("[for (static of [1]) 2]");
eval("(for (static of [1]) 2)");
// Strict mode.
// All reserved words are not allowed.
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (true of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (true of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (throw of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (throw of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (let of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (let of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (yield of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (yield of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (public of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (public of [1]) 2)");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("[for (static of [1]) 2]");
}, SyntaxError);
assertThrowsInstanceOf(function () {
"use strict";
eval("(for (static of [1]) 2)");
}, SyntaxError);
(function () {
"use strict";
eval("[for (await of [1]) 2]");
eval("(for (await of [1]) 2)");
})();
if (typeof reportCompare === "function")
reportCompare(true, true);