trap-is-missing-target-is-proxy.js

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// Copyright (C) 2020 Alexey Shvayka. All rights reserved.

// This code is governed by the BSD license found in the LICENSE file.

/*---

esid: sec-proxy-object-internal-methods-and-internal-slots-hasproperty-p

description: >

  If "has" trap is null or undefined, [[HasProperty]] call is properly

  forwarded to [[ProxyTarget]] (which is also a Proxy object).

info: |

  [[HasProperty]] ( P )

  [...]

  5. Let target be O.[[ProxyTarget]].

  6. Let trap be ? GetMethod(handler, "has").

  7. If trap is undefined, then

    a. Return ? target.[[HasProperty]](P).

features: [Proxy, Symbol.replace, Reflect]

---*/

var regExp = /(?:)/m;

var regExpTarget = new Proxy(regExp, {});

var regExpProxy = new Proxy(regExpTarget, {});

assert(Reflect.has(regExpProxy, "ignoreCase"));

assert(Symbol.replace in regExpProxy);

assert("lastIndex" in Object.create(regExpProxy));

var functionTarget = new Proxy(function() {}, {});

var functionProxy = new Proxy(functionTarget, {});

assert("name" in functionProxy);

assert("length" in Object.create(functionProxy));

reportCompare(0, 0);