| // Copyright (C) 2017 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-function-calls-runtime-semantics-evaluation |
| description: > |
| Tail-call with identifier named "eval" in function environment, local "eval" binding dynamically added. |
| info: | |
| 12.3.4.1 Runtime Semantics: Evaluation |
| ... |
| 6. If Type(ref) is Reference and IsPropertyReference(ref) is false and |
| GetReferencedName(ref) is "eval", then |
| a. If SameValue(func, %eval%) is true, then |
| ... |
| ... |
| 9. Return ? EvaluateCall(func, ref, arguments, tailCall). |
| |
| 12.3.4.2 Runtime Semantics: EvaluateCall( func, ref, arguments, tailPosition ) |
| ... |
| 7. If tailPosition is true, perform PrepareForTailCall(). |
| 8. Let result be Call(func, thisValue, argList). |
| ... |
| |
| flags: [noStrict] |
| features: [tail-call-optimization] |
| includes: [tcoHelper.js] |
| ---*/ |
| |
| var callCount = 0; |
| |
| (function() { |
| function f(n) { |
| "use strict"; |
| if (n === 0) { |
| callCount += 1 |
| return; |
| } |
| return eval(n - 1); |
| } |
| eval("var eval = f;"); |
| f($MAX_ITERATIONS); |
| })(); |
| |
| assert.sameValue(callCount, 1); |
