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Diffstat (limited to 'thirdparty/preact/src/dom/recycler.js')
-rw-r--r-- | thirdparty/preact/src/dom/recycler.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/thirdparty/preact/src/dom/recycler.js b/thirdparty/preact/src/dom/recycler.js new file mode 100644 index 000000000..22085a916 --- /dev/null +++ b/thirdparty/preact/src/dom/recycler.js @@ -0,0 +1,25 @@ +import { toLowerCase } from '../util'; +import { removeNode } from './index'; + +/** DOM node pool, keyed on nodeName. */ + +const nodes = {}; + +export function collectNode(node) { + removeNode(node); + + if (node instanceof Element) { + node._component = node._componentConstructor = null; + + let name = node.normalizedNodeName || toLowerCase(node.nodeName); + (nodes[name] || (nodes[name] = [])).push(node); + } +} + + +export function createNode(nodeName, isSvg) { + let name = toLowerCase(nodeName), + node = nodes[name] && nodes[name].pop() || (isSvg ? document.createElementNS('http://www.w3.org/2000/svg', nodeName) : document.createElement(nodeName)); + node.normalizedNodeName = name; + return node; +} |