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// Copyright 2015 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.
// Test for conflicting variable bindings.
function AssertEqualsStrictAndSloppy(value, code) {
assertEquals(value, eval("(function() {" + code + "})()"));
assertEquals(value, eval("(function() { 'use strict'; " + code + "})()"));
assertEquals(value, eval("(function() { var x = 0; {" + code + "} })()"));
assertEquals(value, eval("(function() { 'use strict'; var x = 0; {"
+ code + "} })()"));
}
function AssertThrowsStrictAndSloppy(code, error) {
assertThrows("(function() {" + code + "})()", error);
assertThrows("(function() { 'use strict'; " + code + "})()", error);
assertThrows("(function() { var x = 0; { " + code + "} })()", error);
assertThrows("(function() { 'use strict'; var x = 0; {" + code + "} })()",
error);
}
(function TestClassTDZ() {
AssertEqualsStrictAndSloppy(
"x", "function f() { return x; }; class x { }; return f().name;");
AssertEqualsStrictAndSloppy
("x", "class x { }; function f() { return x; }; return f().name;");
AssertEqualsStrictAndSloppy(
"x", "class x { }; var result = f().name; " +
"function f() { return x; }; return result;");
AssertThrowsStrictAndSloppy(
"function f() { return x; }; f(); class x { };", ReferenceError);
AssertThrowsStrictAndSloppy(
"f(); function f() { return x; }; class x { };", ReferenceError);
AssertThrowsStrictAndSloppy(
"f(); class x { }; function f() { return x; };", ReferenceError);
AssertThrowsStrictAndSloppy(
"var x = 1; { f(); class x { }; function f() { return x; }; }",
ReferenceError);
AssertThrowsStrictAndSloppy("x = 3; class x { };", ReferenceError)
})();
(function TestClassNameConflict() {
AssertThrowsStrictAndSloppy("class x { }; var x;", SyntaxError);
AssertThrowsStrictAndSloppy("var x; class x { };", SyntaxError);
AssertThrowsStrictAndSloppy("class x { }; function x() { };", SyntaxError);
AssertThrowsStrictAndSloppy("function x() { }; class x { };", SyntaxError);
AssertThrowsStrictAndSloppy("class x { }; for (var x = 0; false;) { };",
SyntaxError);
AssertThrowsStrictAndSloppy("for (var x = 0; false;) { }; class x { };",
SyntaxError);
})();
(function TestClassMutableBinding() {
AssertEqualsStrictAndSloppy(
"x3", "class x { }; var y = x.name; x = 3; return y + x;")
})();