scala/scala

This system is the Scala compiler and its associated standard library and tooling, responsible for compiling Scala source code into JVM bytecode and providing the core language features. It encompasses the full compilation pipeline, including parsing, type checking, macro expansion, and bytecode generation, alongside utilities for interactive development like the REPL and IDE integration. The codebase also manages the Scala standard library, offering collections, concurrency primitives, and reflection APIs, while providing build and test infrastructure to ensure compiler correctness and performance.

This period was dominated by a comprehensive architectural overhaul of the Scala compiler, introducing modular packages for reflection, macros, and the backend, while simultaneously refactoring the standard library's collection and concurrency APIs. The work also established a robust, automated test suite and improved IDE support through a new presentation compiler infrastructure.

161 changes

This period focused on the architectural reorganization of the Scaladoc tool, moving its implementation into a dedicated directory and refactoring its components for better maintainability. Concurrently, the codebase introduced blackbox and whitebox macro context APIs, alongside a new GenBCode backend for bytecode generation. The period also saw the addition of extensive test coverage for these new features, as well as improvements to the interactive compiler and REPL.

129 changes

This period focused on expanding test coverage across the Scala standard library, compiler internals, and the new TASTy reader infrastructure for Scala 3 compatibility. Significant work included implementing the TASTy bridge layer, adding extensive property-based and JUnit tests for collections, and integrating the async/await transformation with corresponding test suites.

122 changes

This period was dominated by extensive test coverage additions for the Scala compiler, particularly focusing on Java interoperability, TASTy pipeline handling, and macro systems. The work also included integrating the 'splain' module for improved implicit resolution diagnostics and refactoring the sbt-bridge to support richer error reporting.

55 changes

scala/scala was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.