https://github.com/purefunctor/purescript-alexandrite

Language implementation for PureScript
https://github.com/purefunctor/purescript-alexandrite

compiler functional-programming purescript

Last synced: 11 days ago
JSON representation

Language implementation for PureScript

• Host: GitHub
• URL: https://github.com/purefunctor/purescript-alexandrite
• Owner: purefunctor
• License: other
• Created: 2023-07-23T08:38:57.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2026-05-26T14:00:06.000Z (17 days ago)
• Last Synced: 2026-05-26T14:34:21.035Z (17 days ago)
• Topics: compiler, functional-programming, purescript
• Language: Rust
• Homepage: https://purefunctor.github.io/purescript-alexandrite/
• Size: 8 MB
• Stars: 84
• Watchers: 9
• Forks: 10
• Open Issues: 23
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Agents: AGENTS.md

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README

          
alexandrite

a language implementation for PureScript


---

Alexandrite is a language implementation for PureScript, powered by an incremental, query-based build

system. Instead of a sequence of compiler phases, Alexandrite models compilation and semantic information

as incrementally computed queries. These queries are used extensively to implement code intelligence

features in the language server.

The build system is designed with interactive editing in mind. To support this, it tracks dependencies

between inputs and queries, caches query results, deduplicates in-progress work across threads, and

supports cooperative cancellation when inputs change. Crucially, many query results are designed to

be incrementally reusable. For example, the compiler uses stable identities in lieu of source ranges 

to enable minimal recomputation across trivial formatting changes.

The language server component implements core code intelligence features such as completion, jump to

definition, hover information, find references, workspace symbol search, and diagnostics.