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author | Joel Kronqvist <work.joelkronqvist@pm.me> | 2022-03-11 20:46:06 +0200 |
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committer | Joel Kronqvist <work.joelkronqvist@pm.me> | 2022-03-11 20:46:06 +0200 |
commit | 080c5819d87b933816d724a83f3bf4f1686770a7 (patch) | |
tree | 4a2ccc68b27edf7d4cbc586c932cc7542b655e19 /node_modules/to-fast-properties/index.js | |
parent | 5ac7049a9d30733165cc212dee308163c2a14644 (diff) | |
parent | d003b82235a9329f912522a2f70aa950dfce4998 (diff) | |
download | LYLLRuoka-080c5819d87b933816d724a83f3bf4f1686770a7.tar.gz LYLLRuoka-080c5819d87b933816d724a83f3bf4f1686770a7.zip |
Merge branch 'master' of https://github.com/JoelHMikael/FoodJS
Updating remote changes
Diffstat (limited to 'node_modules/to-fast-properties/index.js')
-rw-r--r-- | node_modules/to-fast-properties/index.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/node_modules/to-fast-properties/index.js b/node_modules/to-fast-properties/index.js new file mode 100644 index 0000000..028c88a --- /dev/null +++ b/node_modules/to-fast-properties/index.js @@ -0,0 +1,27 @@ +'use strict'; + +let fastProto = null; + +// Creates an object with permanently fast properties in V8. See Toon Verwaest's +// post https://medium.com/@tverwaes/setting-up-prototypes-in-v8-ec9c9491dfe2#5f62 +// for more details. Use %HasFastProperties(object) and the Node.js flag +// --allow-natives-syntax to check whether an object has fast properties. +function FastObject(o) { + // A prototype object will have "fast properties" enabled once it is checked + // against the inline property cache of a function, e.g. fastProto.property: + // https://github.com/v8/v8/blob/6.0.122/test/mjsunit/fast-prototype.js#L48-L63 + if (fastProto !== null && typeof fastProto.property) { + const result = fastProto; + fastProto = FastObject.prototype = null; + return result; + } + fastProto = FastObject.prototype = o == null ? Object.create(null) : o; + return new FastObject; +} + +// Initialize the inline property cache of FastObject +FastObject(); + +module.exports = function toFastproperties(o) { + return FastObject(o); +}; |