Language support for GemStone Smalltalk in VS Code.
Features
Syntax highlighting for .gs, .st, and .tpz
Language Server Protocol (LSP) features powered by the bundled server
GCI Library Integration
The extension uses the GemStone C Interface (GCI) thread-safe library (libgcits) to
communicate with GemStone/S 64 databases. The native library is loaded at runtime via
koffi, a Node.js FFI library.
The GCI wrapper lives in client/src/gciLibrary.ts and currently exposes:
GciTsVersion() — returns the library product ID and version string (no session required)
GCI Integration Tests
GCI tests are kept separate from the normal test suite because they require a platform-specific
native library on disk. They live in client/src/__tests__/gci/ and have their own vitest config.
Run them by setting GCI_LIBRARY_PATH to your libgcits shared library:
GCI_LIBRARY_PATH=/path/to/libgcits-3.7.2-64.dylib npm run test:gci
The library filename should match the pattern libgcits-<version>-64.<ext> where <ext> is
.dylib (macOS), .so (Linux), or .dll (Windows).
Development
Build: npm run compile
Watch: npm run watch
Test: npm test (unit tests only — no external dependencies)
Test GCI: GCI_LIBRARY_PATH=/path/to/libgcits npm run test:gci
Package: npm run package
Publish
Update publisher in package.json to your Marketplace publisher id.
