Using tree-sitter library from Scala

This is a simple example of using the tree-sitter library from Scala.

It uses jextract to generate the bindings to the C library. Grab it from the link here and use the download link from the repo.

Download the tree-sitter library from here and run make in the root folder. This will create the libtree-sitter.so file in the root folder. Set the TREE_SITTER variable in jextractor.sh to this path.

Download your language grammar (for example tree-sitter-python) and build the shared library from the src directory. Set the LANGUAGE variable in jextractor.sh to this path.

Build command:

cd tree-sitter-python/src
clang -O3 -shared -fPIC parser.c scanner.c -std=c99 -o libpython.so

Run the jextractor.sh script to generate the bindings. This will create the com/github folder with all the compiled Java classes.

scala-cli does the rest.

scala-cli run treesc.sc -cp .

Ensure that you use JVM 21, for example sdk install java 21-tem.