@opentui/core/parser.worker.js

OpenTUI is a TypeScript library for building terminal user interfaces (TUIs)

// @bun
var __require = import.meta.require;

// src/lib/tree-sitter/parser.worker.ts
import { Parser, Query, Language } from "web-tree-sitter";
import { mkdir as mkdir2 } from "fs/promises";
import * as path2 from "path";

// src/lib/tree-sitter/download-utils.ts
import { mkdir, writeFile } from "fs/promises";
import * as path from "path";

class DownloadUtils {
  static hashUrl(url) {
    let hash = 0;
    for (let i = 0;i < url.length; i++) {
      const char = url.charCodeAt(i);
      hash = (hash << 5) - hash + char;
      hash = hash & hash;
    }
    return Math.abs(hash).toString(16);
  }
  static async downloadOrLoad(source, cacheDir, cacheSubdir, fileExtension, useHashForCache = true, filetype) {
    const isUrl = source.startsWith("http://") || source.startsWith("https://");
    if (isUrl) {
      let cacheFileName;
      if (useHashForCache) {
        const hash = this.hashUrl(source);
        cacheFileName = filetype ? `${filetype}-${hash}${fileExtension}` : `${hash}${fileExtension}`;
      } else {
        cacheFileName = path.basename(source);
      }
      const cacheFile = path.join(cacheDir, cacheSubdir, cacheFileName);
      await mkdir(path.dirname(cacheFile), { recursive: true });
      try {
        const cachedContent = await Bun.file(cacheFile).arrayBuffer();
        if (cachedContent.byteLength > 0) {
          console.log(`Loaded from cache: ${cacheFile} (${source})`);
          return { content: cachedContent, filePath: cacheFile };
        }
      } catch (error) {}
      try {
        console.log(`Downloading from URL: ${source}`);
        const response = await fetch(source);
        if (!response.ok) {
          return { error: `Failed to fetch from ${source}: ${response.statusText}` };
        }
        const content = await response.arrayBuffer();
        try {
          await writeFile(cacheFile, Buffer.from(content));
          console.log(`Cached: ${source}`);
        } catch (cacheError) {
          console.warn(`Failed to cache: ${cacheError}`);
        }
        return { content, filePath: cacheFile };
      } catch (error) {
        return { error: `Error downloading from ${source}: ${error}` };
      }
    } else {
      try {
        console.log(`Loading from local path: ${source}`);
        const content = await Bun.file(source).arrayBuffer();
        return { content, filePath: source };
      } catch (error) {
        return { error: `Error loading from local path ${source}: ${error}` };
      }
    }
  }
  static async downloadToPath(source, targetPath) {
    const isUrl = source.startsWith("http://") || source.startsWith("https://");
    await mkdir(path.dirname(targetPath), { recursive: true });
    if (isUrl) {
      try {
        console.log(`Downloading from URL: ${source}`);
        const response = await fetch(source);
        if (!response.ok) {
          return { error: `Failed to fetch from ${source}: ${response.statusText}` };
        }
        const content = await response.arrayBuffer();
        await writeFile(targetPath, Buffer.from(content));
        console.log(`Downloaded: ${source} -> ${targetPath}`);
        return { content, filePath: targetPath };
      } catch (error) {
        return { error: `Error downloading from ${source}: ${error}` };
      }
    } else {
      try {
        console.log(`Copying from local path: ${source}`);
        const content = await Bun.file(source).arrayBuffer();
        await writeFile(targetPath, Buffer.from(content));
        return { content, filePath: targetPath };
      } catch (error) {
        return { error: `Error copying from local path ${source}: ${error}` };
      }
    }
  }
  static async fetchHighlightQueries(sources, cacheDir, filetype) {
    const queryPromises = sources.map((source) => this.fetchHighlightQuery(source, cacheDir, filetype));
    const queryResults = await Promise.all(queryPromises);
    const validQueries = queryResults.filter((query) => query.trim().length > 0);
    return validQueries.join(`
`);
  }
  static async fetchHighlightQuery(source, cacheDir, filetype) {
    const result = await this.downloadOrLoad(source, cacheDir, "queries", ".scm", true, filetype);
    if (result.error) {
      console.error(`Error fetching highlight query from ${source}:`, result.error);
      return "";
    }
    if (result.content) {
      return new TextDecoder().decode(result.content);
    }
    return "";
  }
}

// src/lib/tree-sitter/parser.worker.ts
import { isMainThread } from "worker_threads";

// src/lib/bunfs.ts
import { basename as basename2, join as join2 } from "path";
function isBunfsPath(path2) {
  return path2.includes("$bunfs") || /^B:[\\/]~BUN/i.test(path2);
}
function getBunfsRootPath() {
  return process.platform === "win32" ? "B:\\~BUN\\root" : "/$bunfs/root";
}
function normalizeBunfsPath(fileName) {
  return join2(getBunfsRootPath(), basename2(fileName));
}

// src/lib/tree-sitter/parser.worker.ts
var self = globalThis;

class ParserWorker {
  bufferParsers = new Map;
  filetypeParserOptions = new Map;
  filetypeParsers = new Map;
  filetypeParserPromises = new Map;
  reusableParsers = new Map;
  reusableParserPromises = new Map;
  initializePromise;
  performance;
  dataPath;
  tsDataPath;
  initialized = false;
  constructor() {
    this.performance = {
      averageParseTime: 0,
      parseTimes: [],
      averageQueryTime: 0,
      queryTimes: []
    };
  }
  async fetchQueries(sources, filetype) {
    if (!this.tsDataPath) {
      return "";
    }
    return DownloadUtils.fetchHighlightQueries(sources, this.tsDataPath, filetype);
  }
  async initialize({ dataPath }) {
    if (this.initializePromise) {
      return this.initializePromise;
    }
    this.initializePromise = new Promise(async (resolve, reject) => {
      this.dataPath = dataPath;
      this.tsDataPath = path2.join(dataPath, "tree-sitter");
      try {
        await mkdir2(path2.join(this.tsDataPath, "languages"), { recursive: true });
        await mkdir2(path2.join(this.tsDataPath, "queries"), { recursive: true });
        let { default: treeWasm } = await import("web-tree-sitter/tree-sitter.wasm", {
          with: { type: "wasm" }
        });
        if (isBunfsPath(treeWasm)) {
          treeWasm = normalizeBunfsPath(path2.parse(treeWasm).base);
        }
        await Parser.init({
          locateFile() {
            return treeWasm;
          }
        });
        this.initialized = true;
        resolve();
      } catch (error) {
        reject(error);
      }
    });
    return this.initializePromise;
  }
  addFiletypeParser(filetypeParser) {
    this.filetypeParserOptions.set(filetypeParser.filetype, filetypeParser);
  }
  async createQueries(filetypeParser, language) {
    try {
      const highlightQueryContent = await this.fetchQueries(filetypeParser.queries.highlights, filetypeParser.filetype);
      if (!highlightQueryContent) {
        console.error("Failed to fetch highlight queries for:", filetypeParser.filetype);
        return;
      }
      const highlightsQuery = new Query(language, highlightQueryContent);
      const result = {
        highlights: highlightsQuery
      };
      if (filetypeParser.queries.injections && filetypeParser.queries.injections.length > 0) {
        const injectionQueryContent = await this.fetchQueries(filetypeParser.queries.injections, filetypeParser.filetype);
        if (injectionQueryContent) {
          result.injections = new Query(language, injectionQueryContent);
        }
      }
      return result;
    } catch (error) {
      console.error("Error creating queries for", filetypeParser.filetype, filetypeParser.queries);
      console.error(error);
      return;
    }
  }
  async loadLanguage(languageSource) {
    if (!this.initialized || !this.tsDataPath) {
      return;
    }
    const result = await DownloadUtils.downloadOrLoad(languageSource, this.tsDataPath, "languages", ".wasm", false);
    if (result.error) {
      console.error(`Error loading language ${languageSource}:`, result.error);
      return;
    }
    if (!result.filePath) {
      return;
    }
    const normalizedPath = result.filePath.replaceAll("\\", "/");
    try {
      const language = await Language.load(normalizedPath);
      return language;
    } catch (error) {
      console.error(`Error loading language from ${normalizedPath}:`, error);
      return;
    }
  }
  async resolveFiletypeParser(filetype) {
    if (this.filetypeParsers.has(filetype)) {
      return this.filetypeParsers.get(filetype);
    }
    if (this.filetypeParserPromises.has(filetype)) {
      return this.filetypeParserPromises.get(filetype);
    }
    const loadingPromise = this.loadFiletypeParser(filetype);
    this.filetypeParserPromises.set(filetype, loadingPromise);
    try {
      const result = await loadingPromise;
      if (result) {
        this.filetypeParsers.set(filetype, result);
      }
      return result;
    } finally {
      this.filetypeParserPromises.delete(filetype);
    }
  }
  async loadFiletypeParser(filetype) {
    const filetypeParserOptions = this.filetypeParserOptions.get(filetype);
    if (!filetypeParserOptions) {
      return;
    }
    const language = await this.loadLanguage(filetypeParserOptions.wasm);
    if (!language) {
      return;
    }
    const queries = await this.createQueries(filetypeParserOptions, language);
    if (!queries) {
      console.error("Failed to create queries for:", filetype);
      return;
    }
    const filetypeParser = {
      ...filetypeParserOptions,
      queries,
      language
    };
    return filetypeParser;
  }
  async preloadParser(filetype) {
    return this.resolveFiletypeParser(filetype);
  }
  async getReusableParser(filetype) {
    if (this.reusableParsers.has(filetype)) {
      return this.reusableParsers.get(filetype);
    }
    if (this.reusableParserPromises.has(filetype)) {
      return this.reusableParserPromises.get(filetype);
    }
    const creationPromise = this.createReusableParser(filetype);
    this.reusableParserPromises.set(filetype, creationPromise);
    try {
      const result = await creationPromise;
      if (result) {
        this.reusableParsers.set(filetype, result);
      }
      return result;
    } finally {
      this.reusableParserPromises.delete(filetype);
    }
  }
  async createReusableParser(filetype) {
    const filetypeParser = await this.resolveFiletypeParser(filetype);
    if (!filetypeParser) {
      return;
    }
    const parser = new Parser;
    parser.setLanguage(filetypeParser.language);
    const reusableState = {
      parser,
      filetypeParser,
      queries: filetypeParser.queries
    };
    return reusableState;
  }
  async handleInitializeParser(bufferId, version, content, filetype, messageId) {
    const filetypeParser = await this.resolveFiletypeParser(filetype);
    if (!filetypeParser) {
      self.postMessage({
        type: "PARSER_INIT_RESPONSE",
        bufferId,
        messageId,
        hasParser: false,
        warning: `No parser available for filetype ${filetype}`
      });
      return;
    }
    const parser = new Parser;
    parser.setLanguage(filetypeParser.language);
    const tree = parser.parse(content);
    if (!tree) {
      self.postMessage({
        type: "PARSER_INIT_RESPONSE",
        bufferId,
        messageId,
        hasParser: false,
        error: "Failed to parse buffer"
      });
      return;
    }
    const parserState = {
      parser,
      tree,
      queries: filetypeParser.queries,
      filetype,
      content,
      injectionMapping: filetypeParser.injectionMapping
    };
    this.bufferParsers.set(bufferId, parserState);
    self.postMessage({
      type: "PARSER_INIT_RESPONSE",
      bufferId,
      messageId,
      hasParser: true
    });
    const highlights = await this.initialQuery(parserState);
    self.postMessage({
      type: "HIGHLIGHT_RESPONSE",
      bufferId,
      version,
      ...highlights
    });
  }
  async initialQuery(parserState) {
    const query = parserState.queries.highlights;
    const matches = query.captures(parserState.tree.rootNode);
    let injectionRanges = new Map;
    if (parserState.queries.injections) {
      const injectionResult = await this.processInjections(parserState);
      matches.push(...injectionResult.captures);
      injectionRanges = injectionResult.injectionRanges;
    }
    return this.getHighlights(parserState, matches, injectionRanges);
  }
  getNodeText(node, content) {
    return content.substring(node.startIndex, node.endIndex);
  }
  async processInjections(parserState) {
    const injectionMatches = [];
    const injectionRanges = new Map;
    if (!parserState.queries.injections) {
      return { captures: injectionMatches, injectionRanges };
    }
    const content = parserState.content;
    const injectionCaptures = parserState.queries.injections.captures(parserState.tree.rootNode);
    const languageGroups = new Map;
    const injectionMapping = parserState.injectionMapping;
    for (const capture of injectionCaptures) {
      const captureName = capture.name;
      if (captureName === "injection.content" || captureName.includes("injection")) {
        const nodeType = capture.node.type;
        let targetLanguage;
        if (injectionMapping?.nodeTypes && injectionMapping.nodeTypes[nodeType]) {
          targetLanguage = injectionMapping.nodeTypes[nodeType];
        } else if (nodeType === "code_fence_content") {
          const parent = capture.node.parent;
          if (parent) {
            const infoString = parent.children.find((child) => child.type === "info_string");
            if (infoString) {
              const languageNode = infoString.children.find((child) => child.type === "language");
              if (languageNode) {
                const languageName = this.getNodeText(languageNode, content);
                if (injectionMapping?.infoStringMap && injectionMapping.infoStringMap[languageName]) {
                  targetLanguage = injectionMapping.infoStringMap[languageName];
                } else {
                  targetLanguage = languageName;
                }
              }
            }
          }
        }
        if (targetLanguage) {
          if (!languageGroups.has(targetLanguage)) {
            languageGroups.set(targetLanguage, []);
          }
          languageGroups.get(targetLanguage).push({ node: capture.node, name: capture.name });
        }
      }
    }
    for (const [language, captures] of languageGroups.entries()) {
      const injectedParser = await this.getReusableParser(language);
      if (!injectedParser) {
        console.warn(`No parser found for injection language: ${language}`);
        continue;
      }
      if (!injectionRanges.has(language)) {
        injectionRanges.set(language, []);
      }
      const parser = injectedParser.parser;
      for (const { node: injectionNode } of captures) {
        try {
          injectionRanges.get(language).push({
            start: injectionNode.startIndex,
            end: injectionNode.endIndex
          });
          const injectionContent = this.getNodeText(injectionNode, content);
          const tree = parser.parse(injectionContent);
          if (tree) {
            const matches = injectedParser.queries.highlights.captures(tree.rootNode);
            for (const match of matches) {
              const offsetCapture = {
                name: match.name,
                patternIndex: match.patternIndex,
                _injectedQuery: injectedParser.queries.highlights,
                node: {
                  ...match.node,
                  startPosition: {
                    row: match.node.startPosition.row + injectionNode.startPosition.row,
                    column: match.node.startPosition.row === 0 ? match.node.startPosition.column + injectionNode.startPosition.column : match.node.startPosition.column
                  },
                  endPosition: {
                    row: match.node.endPosition.row + injectionNode.startPosition.row,
                    column: match.node.endPosition.row === 0 ? match.node.endPosition.column + injectionNode.startPosition.column : match.node.endPosition.column
                  },
                  startIndex: match.node.startIndex + injectionNode.startIndex,
                  endIndex: match.node.endIndex + injectionNode.startIndex
                }
              };
              injectionMatches.push(offsetCapture);
            }
            tree.delete();
          }
        } catch (error) {
          console.error(`Error processing injection for language ${language}:`, error);
        }
      }
    }
    return { captures: injectionMatches, injectionRanges };
  }
  editToRange(edit) {
    return {
      startPosition: {
        column: edit.startPosition.column,
        row: edit.startPosition.row
      },
      endPosition: {
        column: edit.newEndPosition.column,
        row: edit.newEndPosition.row
      },
      startIndex: edit.startIndex,
      endIndex: edit.newEndIndex
    };
  }
  async handleEdits(bufferId, content, edits) {
    const parserState = this.bufferParsers.get(bufferId);
    if (!parserState) {
      return { warning: "No parser state found for buffer" };
    }
    parserState.content = content;
    for (const edit of edits) {
      parserState.tree.edit(edit);
    }
    const startParse = performance.now();
    const newTree = parserState.parser.parse(content, parserState.tree);
    const endParse = performance.now();
    const parseTime = endParse - startParse;
    this.performance.parseTimes.push(parseTime);
    if (this.performance.parseTimes.length > 10) {
      this.performance.parseTimes.shift();
    }
    this.performance.averageParseTime = this.performance.parseTimes.reduce((acc, time) => acc + time, 0) / this.performance.parseTimes.length;
    if (!newTree) {
      return { error: "Failed to parse buffer" };
    }
    const changedRanges = parserState.tree.getChangedRanges(newTree);
    parserState.tree = newTree;
    const startQuery = performance.now();
    const matches = [];
    if (changedRanges.length === 0) {
      edits.forEach((edit) => {
        const range = this.editToRange(edit);
        changedRanges.push(range);
      });
    }
    for (const range of changedRanges) {
      let node = parserState.tree.rootNode.descendantForPosition(range.startPosition, range.endPosition);
      if (!node) {
        continue;
      }
      if (node.equals(parserState.tree.rootNode)) {
        const rangeCaptures = parserState.queries.highlights.captures(node, {
          startIndex: range.startIndex - 100,
          endIndex: range.endIndex + 1000
        });
        matches.push(...rangeCaptures);
        continue;
      }
      while (node && !this.nodeContainsRange(node, range)) {
        node = node.parent;
      }
      if (!node) {
        node = parserState.tree.rootNode;
      }
      const nodeCaptures = parserState.queries.highlights.captures(node);
      matches.push(...nodeCaptures);
    }
    let injectionRanges = new Map;
    if (parserState.queries.injections) {
      const injectionResult = await this.processInjections(parserState);
      matches.push(...injectionResult.captures);
      injectionRanges = injectionResult.injectionRanges;
    }
    const endQuery = performance.now();
    const queryTime = endQuery - startQuery;
    this.performance.queryTimes.push(queryTime);
    if (this.performance.queryTimes.length > 10) {
      this.performance.queryTimes.shift();
    }
    this.performance.averageQueryTime = this.performance.queryTimes.reduce((acc, time) => acc + time, 0) / this.performance.queryTimes.length;
    return this.getHighlights(parserState, matches, injectionRanges);
  }
  nodeContainsRange(node, range) {
    return node.startPosition.row <= range.startPosition.row && node.endPosition.row >= range.endPosition.row && (node.startPosition.row < range.startPosition.row || node.startPosition.column <= range.startPosition.column) && (node.endPosition.row > range.endPosition.row || node.endPosition.column >= range.endPosition.column);
  }
  getHighlights(parserState, matches, injectionRanges) {
    const lineHighlights = new Map;
    const droppedHighlights = new Map;
    for (const match of matches) {
      const node = match.node;
      const startLine = node.startPosition.row;
      const endLine = node.endPosition.row;
      const highlight = {
        startCol: node.startPosition.column,
        endCol: node.endPosition.column,
        group: match.name
      };
      if (!lineHighlights.has(startLine)) {
        lineHighlights.set(startLine, new Map);
        droppedHighlights.set(startLine, new Map);
      }
      if (lineHighlights.get(startLine)?.has(node.id)) {
        droppedHighlights.get(startLine)?.set(node.id, lineHighlights.get(startLine)?.get(node.id));
      }
      lineHighlights.get(startLine)?.set(node.id, highlight);
      if (startLine !== endLine) {
        for (let line = startLine + 1;line <= endLine; line++) {
          if (!lineHighlights.has(line)) {
            lineHighlights.set(line, new Map);
          }
          const hl = {
            startCol: 0,
            endCol: node.endPosition.column,
            group: match.name
          };
          lineHighlights.get(line)?.set(node.id, hl);
        }
      }
    }
    return {
      highlights: Array.from(lineHighlights.entries()).map(([line, lineHighlights2]) => ({
        line,
        highlights: Array.from(lineHighlights2.values()),
        droppedHighlights: droppedHighlights.get(line) ? Array.from(droppedHighlights.get(line).values()) : []
      }))
    };
  }
  getSimpleHighlights(matches, injectionRanges) {
    const highlights = [];
    const flatInjectionRanges = [];
    for (const [lang, ranges] of injectionRanges.entries()) {
      for (const range of ranges) {
        flatInjectionRanges.push({ ...range, lang });
      }
    }
    for (const match of matches) {
      const node = match.node;
      let isInjection = false;
      let injectionLang;
      let containsInjection = false;
      for (const injRange of flatInjectionRanges) {
        if (node.startIndex >= injRange.start && node.endIndex <= injRange.end) {
          isInjection = true;
          injectionLang = injRange.lang;
          break;
        } else if (node.startIndex <= injRange.start && node.endIndex >= injRange.end) {
          containsInjection = true;
          break;
        }
      }
      const matchQuery = match._injectedQuery;
      const patternProperties = matchQuery?.setProperties?.[match.patternIndex];
      const concealValue = patternProperties?.conceal ?? match.setProperties?.conceal;
      const concealLines = patternProperties?.conceal_lines ?? match.setProperties?.conceal_lines;
      const meta = {};
      if (isInjection && injectionLang) {
        meta.isInjection = true;
        meta.injectionLang = injectionLang;
      }
      if (containsInjection) {
        meta.containsInjection = true;
      }
      if (concealValue !== undefined) {
        meta.conceal = concealValue;
      }
      if (concealLines !== undefined) {
        meta.concealLines = concealLines;
      }
      if (Object.keys(meta).length > 0) {
        highlights.push([node.startIndex, node.endIndex, match.name, meta]);
      } else {
        highlights.push([node.startIndex, node.endIndex, match.name]);
      }
    }
    highlights.sort((a, b) => a[0] - b[0]);
    return highlights;
  }
  async handleResetBuffer(bufferId, version, content) {
    const parserState = this.bufferParsers.get(bufferId);
    if (!parserState) {
      return { warning: "No parser state found for buffer" };
    }
    parserState.content = content;
    const newTree = parserState.parser.parse(content);
    if (!newTree) {
      return { error: "Failed to parse buffer during reset" };
    }
    parserState.tree = newTree;
    const matches = parserState.queries.highlights.captures(parserState.tree.rootNode);
    let injectionRanges = new Map;
    if (parserState.queries.injections) {
      const injectionResult = await this.processInjections(parserState);
      matches.push(...injectionResult.captures);
      injectionRanges = injectionResult.injectionRanges;
    }
    return this.getHighlights(parserState, matches, injectionRanges);
  }
  disposeBuffer(bufferId) {
    const parserState = this.bufferParsers.get(bufferId);
    if (!parserState) {
      return;
    }
    parserState.tree.delete();
    parserState.parser.delete();
    this.bufferParsers.delete(bufferId);
  }
  async handleOneShotHighlight(content, filetype, messageId) {
    const reusableState = await this.getReusableParser(filetype);
    if (!reusableState) {
      self.postMessage({
        type: "ONESHOT_HIGHLIGHT_RESPONSE",
        messageId,
        hasParser: false,
        warning: `No parser available for filetype ${filetype}`
      });
      return;
    }
    const parseContent = filetype === "markdown" && content.endsWith("```") ? content + `
` : content;
    const tree = reusableState.parser.parse(parseContent);
    if (!tree) {
      self.postMessage({
        type: "ONESHOT_HIGHLIGHT_RESPONSE",
        messageId,
        hasParser: false,
        error: "Failed to parse content"
      });
      return;
    }
    try {
      const matches = reusableState.filetypeParser.queries.highlights.captures(tree.rootNode);
      let injectionRanges = new Map;
      if (reusableState.filetypeParser.queries.injections) {
        const parserState = {
          parser: reusableState.parser,
          tree,
          queries: reusableState.filetypeParser.queries,
          filetype,
          content,
          injectionMapping: reusableState.filetypeParser.injectionMapping
        };
        const injectionResult = await this.processInjections(parserState);
        matches.push(...injectionResult.captures);
        injectionRanges = injectionResult.injectionRanges;
      }
      const highlights = this.getSimpleHighlights(matches, injectionRanges);
      self.postMessage({
        type: "ONESHOT_HIGHLIGHT_RESPONSE",
        messageId,
        hasParser: true,
        highlights
      });
    } finally {
      tree.delete();
    }
  }
  async updateDataPath(dataPath) {
    this.dataPath = dataPath;
    this.tsDataPath = path2.join(dataPath, "tree-sitter");
    try {
      await mkdir2(path2.join(this.tsDataPath, "languages"), { recursive: true });
      await mkdir2(path2.join(this.tsDataPath, "queries"), { recursive: true });
    } catch (error) {
      throw new Error(`Failed to update data path: ${error}`);
    }
  }
  async clearCache() {
    if (!this.dataPath || !this.tsDataPath) {
      throw new Error("No data path configured");
    }
    const { rm } = await import("fs/promises");
    try {
      const treeSitterPath = path2.join(this.dataPath, "tree-sitter");
      await rm(treeSitterPath, { recursive: true, force: true });
      await mkdir2(path2.join(treeSitterPath, "languages"), { recursive: true });
      await mkdir2(path2.join(treeSitterPath, "queries"), { recursive: true });
      this.filetypeParsers.clear();
      this.filetypeParserPromises.clear();
      this.reusableParsers.clear();
      this.reusableParserPromises.clear();
    } catch (error) {
      throw new Error(`Failed to clear cache: ${error}`);
    }
  }
}
if (!isMainThread) {
  let logMessage = function(type, ...args) {
    self.postMessage({
      type: "WORKER_LOG",
      logType: type,
      data: args
    });
  };
  const worker = new ParserWorker;
  console.log = (...args) => logMessage("log", ...args);
  console.error = (...args) => logMessage("error", ...args);
  console.warn = (...args) => logMessage("warn", ...args);
  self.onmessage = async (e) => {
    const { type, bufferId, version, content, filetype, edits, filetypeParser, messageId, dataPath } = e.data;
    try {
      switch (type) {
        case "INIT":
          try {
            await worker.initialize({ dataPath });
            self.postMessage({ type: "INIT_RESPONSE" });
          } catch (error) {
            self.postMessage({
              type: "INIT_RESPONSE",
              error: error instanceof Error ? error.stack || error.message : String(error)
            });
          }
          break;
        case "ADD_FILETYPE_PARSER":
          worker.addFiletypeParser(filetypeParser);
          break;
        case "PRELOAD_PARSER":
          const maybeParser = await worker.preloadParser(filetype);
          self.postMessage({ type: "PRELOAD_PARSER_RESPONSE", messageId, hasParser: !!maybeParser });
          break;
        case "INITIALIZE_PARSER":
          await worker.handleInitializeParser(bufferId, version, content, filetype, messageId);
          break;
        case "HANDLE_EDITS":
          const response = await worker.handleEdits(bufferId, content, edits);
          if (response.highlights && response.highlights.length > 0) {
            self.postMessage({ type: "HIGHLIGHT_RESPONSE", bufferId, version, ...response });
          } else if (response.warning) {
            self.postMessage({ type: "WARNING", bufferId, warning: response.warning });
          } else if (response.error) {
            self.postMessage({ type: "ERROR", bufferId, error: response.error });
          }
          break;
        case "GET_PERFORMANCE":
          self.postMessage({ type: "PERFORMANCE_RESPONSE", performance: worker.performance, messageId });
          break;
        case "RESET_BUFFER":
          const resetResponse = await worker.handleResetBuffer(bufferId, version, content);
          if (resetResponse.highlights && resetResponse.highlights.length > 0) {
            self.postMessage({ type: "HIGHLIGHT_RESPONSE", bufferId, version, ...resetResponse });
          } else if (resetResponse.warning) {
            self.postMessage({ type: "WARNING", bufferId, warning: resetResponse.warning });
          } else if (resetResponse.error) {
            self.postMessage({ type: "ERROR", bufferId, error: resetResponse.error });
          }
          break;
        case "DISPOSE_BUFFER":
          worker.disposeBuffer(bufferId);
          self.postMessage({ type: "BUFFER_DISPOSED", bufferId });
          break;
        case "ONESHOT_HIGHLIGHT":
          await worker.handleOneShotHighlight(content, filetype, messageId);
          break;
        case "UPDATE_DATA_PATH":
          try {
            await worker.updateDataPath(dataPath);
            self.postMessage({ type: "UPDATE_DATA_PATH_RESPONSE", messageId });
          } catch (error) {
            self.postMessage({
              type: "UPDATE_DATA_PATH_RESPONSE",
              messageId,
              error: error instanceof Error ? error.message : String(error)
            });
          }
          break;
        case "CLEAR_CACHE":
          try {
            await worker.clearCache();
            self.postMessage({ type: "CLEAR_CACHE_RESPONSE", messageId });
          } catch (error) {
            self.postMessage({
              type: "CLEAR_CACHE_RESPONSE",
              messageId,
              error: error instanceof Error ? error.message : String(error)
            });
          }
          break;
        default:
          self.postMessage({
            type: "ERROR",
            bufferId,
            error: `Unknown message type: ${type}`
          });
      }
    } catch (error) {
      self.postMessage({
        type: "ERROR",
        bufferId,
        error: error instanceof Error ? error.stack || error.message : String(error)
      });
    }
  };
}

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