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author | Joel Kronqvist <joel.h.kronqvist@gmail.com> | 2022-03-05 19:02:27 +0200 |
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committer | Joel Kronqvist <joel.h.kronqvist@gmail.com> | 2022-03-05 19:02:27 +0200 |
commit | 5d309ff52cd399a6b71968a6b9a70c8ac0b98981 (patch) | |
tree | 360f7eb50f956e2367ef38fa1fc6ac7ac5258042 /node_modules/to-fast-properties/index.js | |
parent | b500a50f1b97d93c98b36ed9a980f8188d648147 (diff) | |
download | LYLLRuoka-5d309ff52cd399a6b71968a6b9a70c8ac0b98981.tar.gz LYLLRuoka-5d309ff52cd399a6b71968a6b9a70c8ac0b98981.zip |
Added node_modules for the updating to work properly.
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); +}; |