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Language support

Extraction covers 21 languages via tree-sitter grammars:

Python, JavaScript, TypeScript, Rust, Go, Java, C, C++, Ruby, Swift, Kotlin, Scala, PHP, C#, Lua, Haskell, Elixir, Bash, Dart, Zig, CSS.

Each language has its own config module in crates/astria-extract/src/langs/. Every module provides a LanguageConfig specifying which AST nodes represent classes, functions, and relationships, plus docstring capture rules.

Adding a new language​

Adding a new language means:

  1. Adding a new config file in crates/astria-extract/src/langs/
  2. Registering it in langs/mod.rs

The extraction pass is uniform across languages — only the config differs — so a new language starts producing nodes and edges as soon as its grammar rules are mapped.