feat: add Haskell language support - #1561
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Add full Haskell (.hs, .lhs) support to CodeGraph's extraction pipeline: - Functions with multi-clause grouping, type signatures, and Haddock docs - Type classes as traits, instances with implements edges - Algebraic data types as structs, constructors as enum_members, record fields - Type synonyms, newtypes - Module imports with dotted module names (Data.List, etc.) - Call edges: local calls, qualified calls (Mod.fn), data constructor instantiations, and infix operator calls (user-defined operators only) - where-clause helper extraction Grammar: vendored tree-sitter-haskell 0.23.1 wasm (ABI 14) from the npm package — tree-sitter-wasms doesn't ship Haskell. Validated on three repos by size tier: - xmonad/xmonad (small, 41 files, 1222 nodes, 2208 edges) - PostgREST/postgrest (medium, 192 files, 5531 nodes, 9386 edges) - jgm/pandoc (large, 599 files, 23126 nodes, 52180 edges) All 630 extraction tests pass (19 new Haskell tests + 611 existing).
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Add full Haskell (.hs, .lhs) support to CodeGraph's extraction pipeline:
Grammar: vendored tree-sitter-haskell 0.23.1 wasm (ABI 14) from the npm package — tree-sitter-wasms doesn't ship Haskell.
Validated on three repos by size tier:
All 630 extraction tests pass (19 new Haskell tests + 611 existing).