github/semantic ↗
Created Feb 14, 2021 · View the github/semantic repository page
Parsing, analyzing, and comparing source code across many languages
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Contributors
42
Lines of Code
95,953
From
Jul 18, 2015
To
Nov 5, 2020
About github/semantic
Semantic is a Haskell library and command-line tool for parsing, analyzing, and comparing source code across multiple programming languages. It generates language-specific syntax types based on tree-sitter grammar definitions and can read source code from the filesystem or protocol buffer requests, then perform various analyses and render output in multiple formats.
The tool supports parsing and AST symbol extraction for a broad range of languages including Ruby, JavaScript, TypeScript, Python, Go, PHP, Java, JSON, JSX, TSX, CodeQL, and Haskell, with varying levels of feature completeness across languages. Some languages have partial support for advanced features like stack graphs, which are still under development. The project leverages sophisticated algorithms for code comparison and analysis, including Myers' difference algorithm, RWS-Diff for hierarchical data change detection, and advanced functional programming techniques like data types à la carte and definitional interpreters.
As of the repository's last update, GitHub has discontinued official support and maintenance, encouraging users to fork the code if they wish to continue development. The project requires GHC 8.10.1 and Cabal 3.0 at minimum and officially supports Unix systems only, though Docker images are available for other platforms. Development can be conducted using either Cabal or Bazel build systems, with unofficial Stack support available separately.
