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Language Support Matrix

Code Analyzer supports 20 programming languages and configuration formats with varying levels of analysis depth, covering both traditional programming languages and Infrastructure-as-Code (IaC) formats.

Feature Matrix

Feature TypeScript JavaScript Python Go Java Kotlin C# Rust PHP Ruby C/C++ Swift Dart Lua Scala Zig Elixir
Function Definitions ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Method Definitions ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ N/A ✅ ✅ N/A
Class Definitions ✅ ✅ ✅ N/A ✅ ✅ ✅ N/A ✅ ✅ ✅ ✅ ✅ N/A ✅ N/A N/A
Interface Definitions ✅ N/A N/A ✅ ✅ ✅ ✅ ✅ ✅ N/A N/A ✅ N/A N/A N/A N/A N/A
Enum Definitions ✅ N/A ✅ N/A ✅ ✅ ✅ ✅ N/A N/A ✅ ✅ ✅ N/A ✅ ✅ N/A
Type Definitions ✅ N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Variable Definitions ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Constant Definitions ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Import Statements ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Export Detection ✅ ✅ N/A N/A ✅ ✅ ✅ ✅ N/A N/A N/A ✅ N/A N/A N/A ✅ N/A
Decorators/Annotations ✅ N/A ✅ N/A ✅ ✅ ✅ ✅ ✅ N/A N/A N/A ✅ N/A N/A N/A N/A
Route Detection ✅ N/A ✅ N/A N/A N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Constructor Detection ✅ ✅ ✅ N/A ✅ N/A ✅ N/A ✅ ✅ ✅ ✅ ✅ N/A ✅ N/A N/A
Docstrings/JSDoc ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Function Calls ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅ ✅
Generics ✅ N/A ✅ ✅ ✅ ✅ ✅ ✅ N/A N/A N/A ✅ N/A N/A N/A N/A N/A
Async Detection ✅ ✅ ✅ N/A N/A ✅ ✅ ✅ N/A N/A N/A ✅ ✅ N/A N/A N/A N/A
Extension Functions N/A N/A N/A N/A N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Struct Detection N/A N/A N/A N/A N/A N/A ✅ ✅ N/A N/A N/A ✅ N/A N/A N/A N/A N/A
Record Detection N/A N/A N/A N/A ✅ N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Trait Detection N/A N/A N/A N/A N/A N/A N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A
Impl Block Detection N/A N/A N/A N/A N/A N/A N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A
Object Detection N/A N/A N/A N/A N/A ✅ N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

File Extensions

Language Extensions
TypeScript .ts, .tsx, .mts, .cts
JavaScript .js, .jsx, .mjs, .cjs
Python .py, .pyw, .pyi
Go .go
Java .java
Kotlin .kt, .kts
C# .cs
Rust .rs
PHP .php, .phtml
Ruby .rb, .rake, .gemspec
C .c, .h
C++ .cpp, .cc, .cxx, .hpp, .hxx
Swift .swift
Dart .dart
Lua .lua
Scala .scala, .sc
Zig .zig, .zon
Elixir .ex, .exs

Cross-Language Analysis

Code Analyzer supports cross-language analysis within a single project. For example, a TypeScript frontend calling a Python backend API, or a Rust library with C# bindings.

Import Resolution

From → To TypeScript Python Go Java Rust Swift Dart
TypeScript ✅ named/namespace — — — — — —
Python — ✅ named/namespace — — — — —
Go — — ✅ named/wildcard — — — —
Java — — — ✅ named/wildcard — — —
Kotlin — — — — — — —
C# — — — — — — —
Rust — — — — ✅ named/wildcard — —
Swift — — — — — ✅ named/wildcard —
Dart — — — — — — ✅ named/wildcard

Note: Cross-language edges (e.g., TypeScript calling Python) are represented as CROSS_REPO_* edges in the knowledge graph.

Performance Characteristics

Language Parse Speed Memory per 1K LOC Accuracy
TypeScript Fast ~5MB 99%+
JavaScript Fast ~4MB 99%+
Python Medium ~3MB 97%+
Go Fast ~3MB 98%+
Java Fast ~5MB 97%+
Kotlin Medium ~4MB 95%+
C# Fast ~5MB 97%+
Rust Medium ~4MB 96%+
PHP Fast ~4MB 95%+
Ruby Medium ~4MB 95%+
C/C++ Fast ~3MB 97%+
Swift Medium ~4MB 96%+
Dart Fast ~4MB 95%+
Lua Fast ~2MB 94%+
Scala Medium ~5MB 95%+
Zig Medium ~3MB 94%+
Elixir Medium ~3MB 94%+

Adding a New Language

Language providers implement the LanguageProvider interface. You can extend TreeSitterBaseProvider for full AST-based parsing (recommended for languages with a tree-sitter grammar) or implement the interface directly for simpler formats like Dockerfile and YAML.

See the Language Provider Contributing Guide for a step-by-step walkthrough covering:

  • The LanguageProvider interface overview
  • Extending TreeSitterBaseProvider with node type mappings
  • Regex fallback patterns for resilience
  • Testing requirements and coverage thresholds
  • Registering new providers in the analyzer package

IaC Providers

Code Analyzer also supports Infrastructure-as-Code formats:

Format Provider Parsing Method
Dockerfile DockerfileProvider Regex (FROM, RUN, COPY, ENV instructions)
HCL/Terraform HclProvider Tree-sitter (tree-sitter-hcl)
YAML Built-in Structured key-value parsing
JSON Built-in Standard JSON parse
Markdown Built-in Content extraction
Shell Built-in Command parsing
SQL Built-in Statement parsing