jayret-npm

NPM package for the command-line interface of the Jayret programming language — a Java-flavored surface syntax for Pyret.

When installing this package, the Jayret compiler is cloned and built from a pinned release tag of jayret-lang/jayret-lang (currently jayret-v0.1.0). The same jayret command compiles both .jrt (Jayret) and .arr (Pyret) sources, since Jayret reuses Pyret's full compiler and runtime.

Install

npm install -g jayret-npm

Usage

$ cat hello.jrt
void main() { print("Ahoy world!"); }

$ jayret hello.jrt
Starting Parley server...
1/1 modules compiled
Ahoy world!

Run jayret --help for the full option list.

Architecture

jayret-npm is a thin wrapper around the Pyret compiler bundle that ships inside the package at jayret-lang/build/phaseA/pyret.jarr. The bundle includes the Jayret translator (src/js/trove/parse-java.js in the language repo), which dispatches on the .jrt extension. The wrapper drives a long-lived Parley compile server over a Unix socket so that repeat compiles avoid Node JIT warmup cost.

This package is a fork of brownplt/pyret-npm.

Issues

Report Jayret issues at jayret-lang/jayret-lang. Underlying Pyret-compiler issues likely belong at brownplt/pyret-lang.