mirror of
https://github.com/react/react-native-devtools-frontend.git
synced 2026-10-01 09:47:56 +08:00
Mathias Bynens
79e2cf0633
This also adds CC-BY-4.0 to the list of accepted licenses. DISABLE_THIRD_PARTY_CHECK=update dependencies Bug: chromium:1083142 Change-Id: I8612de2fba52dae32eeb71af79d5aacfde52142b Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2220097 Reviewed-by: Paul Lewis <aerotwist@chromium.org> Commit-Queue: Mathias Bynens <mathias@chromium.org>
44 lines
1.1 KiB
JavaScript
44 lines
1.1 KiB
JavaScript
'use strict';
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/**
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* Create a collection of Maps that serve to contextualize a given node.
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* This is useful to ensure that you only compare nodes that share a certain
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* context.
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*
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* All nodes are initially contextualized by their input source.
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* From there, you can contextualize them however you want.
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*
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* For a usage example, see `selector-no-descending-specificity`.
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*/
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module.exports = function () {
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const contextMap = new Map();
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return {
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/**
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* @param {import('postcss').Node} node
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*/
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getContext(node, /** @type {any[]} */ ...subContexts) {
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// TODO TYPES node.source possible undefined
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const nodeSource = /** @type {import('postcss').NodeSource} */ (node.source).input.from;
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const baseContext = creativeGetMap(contextMap, nodeSource);
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return subContexts.reduce((result, context) => {
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return creativeGetMap(result, context);
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}, baseContext);
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},
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};
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};
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/**
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* TODO TYPES
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* @param {Map<any, any>} someMap
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* @param {any} someThing
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*/
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function creativeGetMap(someMap, someThing) {
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if (!someMap.has(someThing)) {
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someMap.set(someThing, new Map());
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}
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return someMap.get(someThing);
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}
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