Strict mode Passingnon-Strict mode Passing
Features:
- Symbol.match
// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description: > Behavior when error thrown while setting `lastIndex` after a "global" match success es6id: 21.2.5.6 info: | [...] 5. Let global be ToBoolean(Get(rx, "global")). 6. ReturnIfAbrupt(global). 7. If global is false, then a. Return RegExpExec(rx, S). 21.2.5.2.1 Runtime Semantics: RegExpExec ( R, S ) [...] 7. Return RegExpBuiltinExec(R, S). 21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S ) [...] 18. If global is true or sticky is true, a. Let setStatus be Set(R, "lastIndex", e, true). b. ReturnIfAbrupt(setStatus). features: [Symbol.match] ---*/ var r = /b/g; var callCount = 0; // Because this test speicifically concerns the behavior when setting // "lastIndex" following a match, care must be taken to avoid triggering a // similar error when `lastIndex` is initially set to `0` earlier in the // algorithm. // // Because the `lastIndex` property is non-configurable, this cannot be // accomplished with a simple "set" accessor function. // // Defer disabling modification of `lastIndex` until after the "this" value's // `exec` property has been accessed, ensuring that the resultant abrupt // completion originates from the second property modification. Object.defineProperty(r, 'exec', { get: function() { Object.defineProperty(r, 'lastIndex', { writable: false }); } }); assert.throws(TypeError, function() { r[Symbol.match]('abc'); });