From 30b577138dda685f65a8529be1866afa6e321845 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Tue, 4 Oct 2016 11:50:26 +0200 Subject: Squashed 'thirdparty/preact/' content from commit b2d90cc git-subtree-dir: thirdparty/preact git-subtree-split: b2d90cc116f1d1998f7a7c98dc6986bf4c1841f4 --- src/vdom/component-recycler.js | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/vdom/component-recycler.js (limited to 'src/vdom/component-recycler.js') diff --git a/src/vdom/component-recycler.js b/src/vdom/component-recycler.js new file mode 100644 index 000000000..a70f0ece0 --- /dev/null +++ b/src/vdom/component-recycler.js @@ -0,0 +1,32 @@ +import { Component } from '../component'; + +/** Retains a pool of Components for re-use, keyed on component name. + * Note: since component names are not unique or even necessarily available, these are primarily a form of sharding. + * @private + */ +const components = {}; + + +export function collectComponent(component) { + let name = component.constructor.name, + list = components[name]; + if (list) list.push(component); + else components[name] = [component]; +} + + +export function createComponent(Ctor, props, context) { + let inst = new Ctor(props, context), + list = components[Ctor.name]; + Component.call(inst, props, context); + if (list) { + for (let i=list.length; i--; ) { + if (list[i].constructor===Ctor) { + inst.nextBase = list[i].nextBase; + list.splice(i, 1); + break; + } + } + } + return inst; +} -- cgit v1.2.3