MikePopoloski/slang

Health v2 · maintenance only

Adoption not part of the score

1127 stars · 253 forks observed · 2026-09-03

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

slang is a fast, highly compliant SystemVerilog frontend library providing lexing, parsing, type checking, and elaboration, plus a CLI tool for compiling and statically analyzing SystemVerilog projects. It is designed to be embedded as a frontend for synthesis, simulation, linting, and editor tooling, with Python bindings available.

Use cases

• lint and syntax-check SystemVerilog code
• parse SystemVerilog into an AST and dump it as JSON
• build a SystemVerilog language server for code editors
• refactor or generate SystemVerilog source code
• use a SystemVerilog frontend for a synthesis or simulation tool
• introspect SystemVerilog designs from Python

When to choose

• you need a fast, standards-compliant SystemVerilog parser or elaborator
• you're building EDA tooling like linters, editors, or synthesis frontends
• you need robust error recovery on incomplete or broken source code
• you want programmatic access to SystemVerilog ASTs via C++ or Python

When to avoid

• you need a full synthesis or simulation engine - slang is only a frontend
• you're working with Verilog-1995 or other HDLs like VHDL
• you want a GUI IDE - slang provides a library and CLI, not an editor

Facets

library · maturity active

compiler parser linter type-system interpreter developer-tools hardware developer-tools parsers programming-languages windows cpp python cli systemverilog verilog hardware-description-language language-services ast elaboration python-bindings eda linux macos

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