[waleedcodes]

📌 Pull Request #17 of 58: projectGraph.ts

📂 File & Architectural Context

• Target File: src/graph/projectGraph.ts
• Architectural Layer: Dependency & Call Graph Engine
• Scope Identifier: graph/project

🎯 Overview & Motivation

Builds project dependency and call graphs, resolving relative imports and path aliases (@/*), tracing reverse dependents, and detecting untested callers.

🔍 Detailed Delta & Technical Implementation

• Scanned workspace for TypeScript and JavaScript files excluding node_modules.
• Built forward import graph and reverse dependents map.
• Traced call relationships between functions and callers.
• Implemented computeImpact() mapping changed line numbers to symbols and downstream callers.
• Detected whether callers have test coverage by checking test files.

🛡️ Quality Gates & Verification

• Target Base Branch: working
• TypeScript Type Safety: 0 errors (tsc --noEmit).
• Code Quality: 0 ESLint warnings (eslint src --ext .ts).
• Test Suite: 34 / 34 passing tests across 13 test suites (vitest run).
• Production Bundle: Bundled in <700ms with esbuild.
• Verification Details: Passed all unit tests in tests/projectGraph.test.ts.

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