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tailwind-ctp-intellisense @d49a90b4e7daad11a80652d5ae95bf4ce993db98 - refs - log -
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https://git.jolheiser.com/tailwind-ctp-intellisense.git
Tailwind intellisense + Catppuccin
tailwind-ctp-intellisense / packages / tailwindcss-language-server / src / language / languageModelCache.ts
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/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License.
 *--------------------------------------------------------------------------------------------*/

import { TextDocument } from 'vscode-css-languageservice'

export interface LanguageModelCache<T> {
  get(document: TextDocument): T
  onDocumentRemoved(document: TextDocument): void
  dispose(): void
}

export function getLanguageModelCache<T>(
  maxEntries: number,
  cleanupIntervalTimeInSec: number,
  parse: (document: TextDocument) => T
): LanguageModelCache<T> {
  let languageModels: {
    [uri: string]: { version: number; languageId: string; cTime: number; languageModel: T }
  } = {}
  let nModels = 0

  let cleanupInterval: NodeJS.Timer | undefined = undefined
  if (cleanupIntervalTimeInSec > 0) {
    cleanupInterval = setInterval(() => {
      let cutoffTime = Date.now() - cleanupIntervalTimeInSec * 1000
      let uris = Object.keys(languageModels)
      for (let uri of uris) {
        let languageModelInfo = languageModels[uri]
        if (languageModelInfo.cTime < cutoffTime) {
          delete languageModels[uri]
          nModels--
        }
      }
    }, cleanupIntervalTimeInSec * 1000)
  }

  return {
    get(document: TextDocument): T {
      let version = document.version
      let languageId = document.languageId
      let languageModelInfo = languageModels[document.uri]
      if (
        languageModelInfo &&
        languageModelInfo.version === version &&
        languageModelInfo.languageId === languageId
      ) {
        languageModelInfo.cTime = Date.now()
        return languageModelInfo.languageModel
      }
      let languageModel = parse(document)
      languageModels[document.uri] = { languageModel, version, languageId, cTime: Date.now() }
      if (!languageModelInfo) {
        nModels++
      }

      if (nModels === maxEntries) {
        let oldestTime = Number.MAX_VALUE
        let oldestUri = null
        for (let uri in languageModels) {
          let languageModelInfo = languageModels[uri]
          if (languageModelInfo.cTime < oldestTime) {
            oldestUri = uri
            oldestTime = languageModelInfo.cTime
          }
        }
        if (oldestUri) {
          delete languageModels[oldestUri]
          nModels--
        }
      }
      return languageModel
    },
    onDocumentRemoved(document: TextDocument) {
      let uri = document.uri
      if (languageModels[uri]) {
        delete languageModels[uri]
        nModels--
      }
    },
    dispose() {
      if (typeof cleanupInterval !== 'undefined') {
        clearInterval(cleanupInterval)
        cleanupInterval = undefined
        languageModels = {}
        nModels = 0
      }
    },
  }
}