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115 changes: 115 additions & 0 deletions
115
JSTests/microbenchmarks/define-properties-all-of-keys.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| const properties = { | ||
| closed: { | ||
| get() { | ||
| return this._writableState ? this._writableState.closed : false; | ||
| }, | ||
| }, | ||
| destroyed: { | ||
| get() { | ||
| return this._writableState ? this._writableState.destroyed : false; | ||
| }, | ||
| set(value) { | ||
| if (this._writableState) { | ||
| this._writableState.destroyed = value; | ||
| } | ||
| }, | ||
| }, | ||
| writable: { | ||
| get() { | ||
| const w = this._writableState; | ||
| return ( | ||
| !!w && | ||
| w.writable !== false && | ||
| !w.destroyed && | ||
| !w.errored && | ||
| !w.ending && | ||
| !w.ended | ||
| ); | ||
| }, | ||
| set(val) { | ||
| if (this._writableState) { | ||
| this._writableState.writable = !!val; | ||
| } | ||
| }, | ||
| }, | ||
| writableFinished: { | ||
| get() { | ||
| return this._writableState ? this._writableState.finished : false; | ||
| }, | ||
| }, | ||
| writableObjectMode: { | ||
| get() { | ||
| return this._writableState ? this._writableState.objectMode : false; | ||
| }, | ||
| }, | ||
| writableBuffer: { | ||
| get() { | ||
| return this._writableState && this._writableState.getBuffer(); | ||
| }, | ||
| }, | ||
| writableEnded: { | ||
| get() { | ||
| return this._writableState ? this._writableState.ending : false; | ||
| }, | ||
| }, | ||
| writableNeedDrain: { | ||
| get() { | ||
| const wState = this._writableState; | ||
| if (!wState) return false; | ||
| return !wState.destroyed && !wState.ending && wState.needDrain; | ||
| }, | ||
| }, | ||
| writableHighWaterMark: { | ||
| get() { | ||
| return this._writableState && this._writableState.highWaterMark; | ||
| }, | ||
| }, | ||
| writableCorked: { | ||
| get() { | ||
| return this._writableState ? this._writableState.corked : 0; | ||
| }, | ||
| }, | ||
| writableLength: { | ||
| get() { | ||
| return this._writableState && this._writableState.length; | ||
| }, | ||
| }, | ||
| errored: { | ||
| enumerable: false, | ||
| get() { | ||
| return this._writableState ? this._writableState.errored : null; | ||
| }, | ||
| }, | ||
| writableAborted: { | ||
| enumerable: false, | ||
| get: function () { | ||
| return !!( | ||
| this._writableState.writable !== false && | ||
| (this._writableState.destroyed || this._writableState.errored) && | ||
| !this._writableState.finished | ||
| ); | ||
| }, | ||
| }, | ||
| }; | ||
|
|
||
| var count = 10_000; | ||
|
|
||
| function test() { | ||
| var first; | ||
| { | ||
| function Hey() { | ||
| return this; | ||
| } | ||
| Object.defineProperties(Hey.prototype, properties); | ||
| first = Object.getOwnPropertyDescriptors(Hey.prototype); | ||
| } | ||
|
|
||
| for (let i = 0; i < count; i++) { | ||
| function Hey() { | ||
| return this; | ||
| } | ||
| Object.defineProperties(Hey.prototype, first); | ||
| } | ||
| } | ||
|
|
||
| test(); |
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