This page is a quick-reference guide for common tasks while working with the compiler. For more in-depth explanations, see the rest of this chapter.
sbt Commands
The following commands can be run within sbt in the dotty directory:
| Commands |
|---|
testCompilation Run compilation tests on files that match the first argument. |
scala3/scalac Run the compiler directly, with any current changes. |
scala3/scala Run the main method of a given class name. |
repl Start a REPL with the bootstrapped compiler. |
testOnly *CompilationTests -- *pos Run test pos from the compilation test suite. |
scala3-compiler/Test/runMain dotty.tools.printTypes Print types underlying representation |
scala3/scalac -print-tasty Foo.tasty Print the TASTy of top-level class Foo |
scala3-bootstrapped/test Run all tests for Scala 3. (Slow, recommended for CI only) |
scala3-bootstrapped/publishLocal Build Scala 3 locally. (Use to debug a specific project) |
Shell Commands
| Command | Description |
|---|---|
rm -rv *.tasty *.class out || true |
clean all compiled artifacts, from root dotty directory |
Contributors to this page:
Contents
- About This Guide
- Getting Started
- Contributing to Scala 3
- Cheatsheets
- Reproducing an Issue
- Finding the Cause of an Issue
- Common Issue Locations
- How to Inspect Values
- Improving Your Workflow
- Testing Your Changes
- Pull Request Checklist
- High Level Architecture
- Compiler Overview
- Contexts
- Compiler Phases
- Compiler Types
- Time in the Compiler
- Symbols