| // |reftest| fails -- bug 604301, at a minimum |
| // Any copyright is dedicated to the Public Domain. |
| // http://creativecommons.org/licenses/publicdomain/ |
| |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 616294; |
| var summary = |
| "|delete x| inside a function in eval code, where that eval code includes " + |
| "|var x| at top level, actually does delete the binding for x"; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| var f; |
| |
| function testOuterLet() |
| { |
| return eval("let x; (function() { return delete x; })"); |
| } |
| |
| f = testOuterLet(); |
| |
| assertEq(f(), true); // configurable, so remove => true |
| assertEq(f(), true); // not there => true (only non-configurable => false) |
| |
| |
| function testOuterForLet() |
| { |
| return eval("for (let x; false; ); (function() { return delete x; })"); |
| } |
| |
| f = testOuterForLet(); |
| |
| assertEq(f(), true); // not there => true (only non-configurable => false) |
| |
| |
| function testOuterForInLet() |
| { |
| return eval("for (let x in {}); (function() { return delete x; })"); |
| } |
| |
| f = testOuterForInLet(); |
| |
| assertEq(f(), true); // configurable, so remove => true |
| assertEq(f(), true); // not there => true (only non-configurable => false) |
| |
| |
| function testOuterNestedVarInLetBlock() |
| { |
| return eval("let (x = 7) { var x = 9; } (function() { return delete x; })"); |
| } |
| |
| f = testOuterNestedVarInLetBlock(); |
| |
| assertEq(f(), true); // configurable var, so remove => true |
| assertEq(f(), true); // let still there, configurable => true |
| assertEq(f(), true); // nothing at all => true |
| |
| |
| function testOuterNestedVarInForLet() |
| { |
| return eval("for (let q = 0; q < 5; q++) { var x; } (function() { return delete x; })"); |
| } |
| |
| f = testOuterNestedVarInForLet(); |
| |
| assertEq(f(), true); // configurable, so remove => true |
| assertEq(f(), true); // there => true |
| |
| |
| function testArgumentShadowLet() |
| { |
| return eval("let x; (function(x) { return delete x; })"); |
| } |
| |
| f = testArgumentShadowLet(); |
| |
| assertEq(f(), false); // non-configurable argument => false |
| |
| |
| function testFunctionLocal() |
| { |
| return eval("(function() { let x; return delete x; })"); |
| } |
| |
| f = testFunctionLocal(); |
| |
| assertEq(f(), false); // defined by function code => not configurable => false |
| |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("All tests passed!"); |