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treeSitterProcessor.ts.html•78.5 kB

<!doctype html> <html lang="en"> <head> <title>Code coverage report for local/treeSitterProcessor.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../prettify.css" /> <link rel="stylesheet" href="../base.css" /> <link rel="shortcut icon" type="image/x-icon" href="../favicon.png" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <style type='text/css'> .coverage-summary .sorter { background-image: url(../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1><a href="../index.html">All files</a> / <a href="index.html">local</a> treeSitterProcessor.ts</h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 4.1% Statements 8/195 </div> <div class='fl pad1y space-right2'> 0% Branches 0/98 </div> <div class='fl pad1y space-right2'> 0% Functions 0/16 </div> <div class='fl pad1y space-right2'> 4.16% Lines 8/192 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. 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href='#L487'>487</a> <a name='L488'></a><a href='#L488'>488</a></td><td class="line-coverage quiet">                                  1x 1x 1x                   1x 1x 1x 1x                                                               1x                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              </td><td class="text"><pre class="prettyprint lang-js">/** * @fileOverview: Tree-sitter based AST parsing and code analysis with fallback parsing support * @module: TreeSitterProcessor * @keyFunctions: * - parseAndChunk(): Parse code and create semantic chunks with symbol extraction * - extractSymbols(): Extract code symbols and cross-references * - initializeParsers(): Set up language-specific parsers with error handling * - fallbackParse(): Basic parsing when tree-sitter is unavailable * @dependencies: * - tree-sitter: Core parsing engine (optional) * - tree-sitter-typescript: TypeScript/TSX parsing * - tree-sitter-javascript: JavaScript parsing * - tree-sitter-python: Python parsing * @context: Provides robust AST parsing with graceful fallback to basic parsing when tree-sitter dependencies are unavailable, supporting multiple programming languages */   // Optional tree-sitter import to avoid hard native dependency at runtime let Parser: any = null; try { Parser = require('tree-sitter'); } catch { Parser = null; }   // We'll need to install these as dev dependencies if not already available let TypeScript: any; let JavaScript: any; let Python: any;   try { TypeScript = require('tree-sitter-typescript').typescript; JavaScript = require('tree-sitter-javascript'); Python = require('tree-sitter-python'); } catch (error) { console.warn('Some tree-sitter parsers not available:', error); }   export interface CodeChunk { content: string; startLine: number; endLine: number; tokenEstimate: number; symbolId?: string; symbolName?: string; symbolType?: string; }   export interface CodeSymbol { name: string; kind: string; startLine: number; endLine: number; lang: string; source: string; }   export interface CodeXRef { name: string; kind: 'import' | 'export'; startLine: number; endLine: number; targetPath?: string; }   export class TreeSitterProcessor { private parsers: Map<string, any>;   constructor() { this.parsers = new Map(); this.initializeParsers(); }   private initializeParsers(): void { Iif (!Parser) { console.warn('Tree-sitter parser not available, will use fallback parsing'); return; }   try { Iif (TypeScript) { const tsParser = new Parser(); try { tsParser.setLanguage(TypeScript); this.parsers.set('typescript', tsParser); } catch (error) { console.warn('Failed to initialize TypeScript parser:', error); } }   Iif (JavaScript) { const jsParser = new Parser(); try { jsParser.setLanguage(JavaScript); this.parsers.set('javascript', jsParser); } catch (error) { console.warn('Failed to initialize JavaScript parser:', error); } }   Iif (Python) { const pyParser = new Parser(); try { pyParser.setLanguage(Python); this.parsers.set('python', pyParser); } catch (error) { console.warn('Failed to initialize Python parser:', error); } } } catch (error) { console.warn('Failed to initialize some tree-sitter parsers:', error); } }   async parseAndChunk( content: string, language: string, filePath: string ): Promise<{ chunks: CodeChunk[]; symbols: CodeSymbol[]; xrefs: CodeXRef[]; }> { // Validate input parameters Iif (!content || typeof content !== 'string') { console.warn(`Invalid content for parsing ${filePath}, using fallback`); const chunks = this.fallbackChunking(content || '', filePath); return { chunks, symbols: [], xrefs: [] }; }   Iif (!language || typeof language !== 'string') { console.warn(`Invalid language for parsing ${filePath}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   const parser = this.parsers.get(language); Iif (!parser) { console.warn(`No parser available for language ${language} in ${filePath}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   try { // Additional validation before parsing Iif (content.length === 0) { console.warn(`Empty content for parsing ${filePath}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   // Check for problematic content that can cause Tree-sitter to fail const hasNullBytes = content.includes('\0'); const hasInvalidChars = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/.test(content); const isTooLarge = content.length > 1024 * 1024; // 1MB limit for safety   Iif (hasNullBytes || hasInvalidChars || isTooLarge) { console.warn( `Problematic content detected in ${filePath} (${hasNullBytes ? 'null bytes' : ''} ${hasInvalidChars ? 'invalid chars' : ''} ${isTooLarge ? 'too large' : ''}), using fallback` ); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   // Additional content validation - check for incomplete/truncated content const trimmedContent = content.trim(); Iif (trimmedContent.length === 0) { console.warn(`Content is only whitespace for ${filePath}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   // Check for obviously invalid syntax patterns that can crash Tree-sitter const openBraces = (content.match(/\{/g) || []).length; const closeBraces = (content.match(/\}/g) || []).length; Iif (Math.abs(openBraces - closeBraces) > 100) { console.warn( `Highly unbalanced braces in ${filePath}, likely invalid syntax, using fallback` ); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   let tree; try { // Attempt to parse with a timeout safeguard tree = parser.parse(content); } catch (parseError) { const errorMessage = parseError instanceof Error ? parseError.message : String(parseError); Iif ( errorMessage.includes('Invalid argument') || errorMessage.includes('parse') || errorMessage.includes('invalid') ) { console.warn(`Tree-sitter parse error for ${filePath}: ${errorMessage}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; } throw parseError; // Re-throw if it's not a parsing error we can handle }   // Validate the parsed tree Iif (!tree || !tree.rootNode) { console.warn(`Invalid parse tree for ${filePath}, using fallback`); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   // Validate root node Iif (!tree.rootNode || tree.rootNode.type !== 'program') { console.warn( `Unexpected root node type in ${filePath}: ${tree.rootNode?.type}, using fallback` ); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; }   const chunks = this.extractChunks(tree, content, language); const symbols = this.extractSymbols(tree, content, language); const xrefs = this.extractXRefs(tree, language); return { chunks, symbols, xrefs }; } catch (error) { console.error(`Tree-sitter processing failed for ${filePath}:`, error); const chunks = this.fallbackChunking(content, filePath); return { chunks, symbols: [], xrefs: [] }; } }   private extractChunks(tree: any, content: string, language: string): CodeChunk[] { const chunks: CodeChunk[] = []; const lines = content.split('\n');   const traverse = (node: any) => { try { Iif (this.isChunkableNode(node, language)) { const startLine = node.startPosition?.row + 1; const endLine = node.endPosition?.row + 1;   Iif (startLine && endLine && startLine <= endLine) { const nodeContent = this.getNodeContent(node, lines);   Iif (nodeContent && (endLine - startLine > 10 || nodeContent.length > 100)) { chunks.push({ content: nodeContent, startLine, endLine, tokenEstimate: this.estimateTokens(nodeContent), symbolName: this.getSymbolName(node), symbolType: node.type, }); } } }   // Safely traverse children Iif (node.children && Array.isArray(node.children)) { for (const child of node.children) { Iif (child) { traverse(child); } } } } catch (error) { console.warn(`Error traversing node in ${language}:`, error); // Continue with other nodes } };   try { Iif (tree?.rootNode) { traverse(tree.rootNode); } } catch (error) { console.warn(`Error extracting chunks from tree:`, error); }   Iif (chunks.length === 0) { return this.fallbackChunking(content, ''); }   return chunks; }   private isChunkableNode(node: any, language: string): boolean { try { Iif (!node || !node.type) return false;   Iif (language === 'typescript' || language === 'javascript') { return [ 'function_declaration', 'method_definition', 'arrow_function', 'class_declaration', 'interface_declaration', 'type_alias_declaration', 'export_statement', ].includes(node.type); }   Iif (language === 'python') { return ['function_definition', 'class_definition', 'decorated_definition'].includes( node.type ); }   return false; } catch (error) { console.warn(`Error checking if node is chunkable:`, error); return false; } }   private getNodeContent(node: any, lines: string[]): string { try { Iif (!node || !node.startPosition || !node.endPosition || !Array.isArray(lines)) { return ''; }   const startLine = node.startPosition.row; const endLine = node.endPosition.row;   Iif ( typeof startLine !== 'number' || typeof endLine !== 'number' || startLine < 0 || endLine < startLine || endLine >= lines.length ) { return ''; }   return lines.slice(startLine, endLine + 1).join('\n'); } catch (error) { console.warn(`Error getting node content:`, error); return ''; } }   private getSymbolName(node: any): string | undefined { try { Iif (!node || !Array.isArray(node.children)) return undefined; const nameNode = node.children.find( (child: any) => child && (child.type === 'identifier' || child.type === 'property_identifier') ); return nameNode?.text; } catch (error) { console.warn(`Error getting symbol name:`, error); return undefined; } }   private fallbackChunking(content: string, filePath: string): CodeChunk[] { // If content is completely empty or only whitespace, create minimal chunk const trimmedContent = content.trim(); Iif (trimmedContent.length === 0) { return [ { content: '', startLine: 1, endLine: 1, tokenEstimate: 0, symbolName: 'empty_file', symbolType: 'fallback', }, ]; }   const lines = content.split('\n'); const chunks: CodeChunk[] = []; const chunkSize = 50;   for (let i = 0; i < lines.length; i += chunkSize) { const endIndex = Math.min(i + chunkSize, lines.length); const chunkContent = lines.slice(i, endIndex).join('\n');   chunks.push({ content: chunkContent, startLine: i + 1, endLine: endIndex, tokenEstimate: this.estimateTokens(chunkContent), }); }   return chunks; }   private estimateTokens(content: string): number { return Math.ceil(content.length / 4); }   private extractSymbols(tree: any, content: string, language: string): CodeSymbol[] { const symbols: CodeSymbol[] = []; const lines = content.split('\n');   const traverse = (node: any) => { Iif (this.isSymbolNode(node, language)) { const startLine = node.startPosition.row + 1; const endLine = node.endPosition.row + 1; const nodeContent = this.getNodeContent(node, lines); const symbolName = this.getSymbolName(node);   Iif (symbolName) { symbols.push({ name: symbolName, kind: node.type, startLine, endLine, lang: language, source: nodeContent, }); } }   for (const child of node.children) { traverse(child); } };   traverse(tree.rootNode); return symbols; }   private isSymbolNode(node: any, language: string): boolean { Iif (language === 'typescript' || language === 'javascript') { return [ 'function_declaration', 'function_expression', 'arrow_function', 'class_declaration', 'interface_declaration', 'type_alias_declaration', 'variable_declarator', 'method_definition', 'property_definition', ].includes(node.type); }   Iif (language === 'python') { return [ 'function_definition', 'class_definition', 'decorated_definition', 'assignment', ].includes(node.type); }   return false; }   private extractXRefs(tree: any, language: string): CodeXRef[] { const xrefs: CodeXRef[] = []; Iif (language !== 'typescript' && language !== 'javascript') { return xrefs; }   const traverse = (node: any) => { Iif (node.type === 'import_statement' || node.type === 'export_statement') { const kind = node.type === 'import_statement' ? 'import' : 'export'; const pathNode = node.descendantsOfType('string_literal')[0]; const targetPath = pathNode?.text.slice(1, -1);   const importClause = node.descendantsOfType('import_clause')[0]; Iif (importClause) { const namedImports = importClause.descendantsOfType('named_imports')[0]; Iif (namedImports) { for (const specifier of namedImports.descendantsOfType('import_specifier')) { xrefs.push({ name: specifier.text, kind, startLine: specifier.startPosition.row + 1, endLine: specifier.endPosition.row + 1, targetPath, }); } } } }   for (const child of node.children) { traverse(child); } };   traverse(tree.rootNode); return xrefs; } }  </pre></td></tr></table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> at 2025-09-23T05:02:42.149Z </div> <script src="../prettify.js"></script> <script> window.onload = function () { prettyPrint(); }; </script> <script src="../sorter.js"></script> <script src="../block-navigation.js"></script> </body> </html>

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curl -X GET 'https://glama.ai/api/mcp/v1/servers/sbarron/AmbianceMCP'

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