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Diffstat (limited to 'js/src/tests/test262/built-ins/Proxy/ownKeys/trap-is-null-target-is-proxy.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Proxy/ownKeys/trap-is-null-target-is-proxy.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/ownKeys/trap-is-null-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/ownKeys/trap-is-null-target-is-proxy.js new file mode 100644 index 0000000000..ea5a1ddb08 --- /dev/null +++ b/js/src/tests/test262/built-ins/Proxy/ownKeys/trap-is-null-target-is-proxy.js @@ -0,0 +1,50 @@ +// 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-ownpropertykeys +description: > + If "ownKeys" trap is null or undefined, [[OwnPropertyKeys]] call is + properly forwarded to [[ProxyTarget]] (which is also a Proxy object). +info: | + [[OwnPropertyKeys]] ( ) + + [...] + 4. Let target be O.[[ProxyTarget]]. + 5. Let trap be ? GetMethod(handler, "ownKeys"). + 6. If trap is undefined, then + a. Return ? target.[[OwnPropertyKeys]](). + + OrdinaryOwnPropertyKeys ( O ) + + 1. Let keys be a new empty List. + 2. For each own property key P of O that is an array index, + in ascending numeric index order, do + a. Add P as the last element of keys. + 3. For each own property key P of O that is a String but is not an + array index, in ascending chronological order of property creation, do + a. Add P as the last element of keys. + [...] + 5. Return keys. +includes: [compareArray.js] +features: [Proxy] +---*/ + +var plainObject = { + foo: 1, + "0": 2, + get bar() {}, + "1": 4, +}; + +var plainObjectTarget = new Proxy(plainObject, {}); +var plainObjectProxy = new Proxy(plainObjectTarget, { + ownKeys: null, +}); + +assert.compareArray( + Object.keys(plainObjectProxy), + ["0", "1", "foo", "bar"] +); + +reportCompare(0, 0); |