2fc5c0ce5c
Makes it easier to test the feature: ``` $ cargo run -- --experimental-indexes Limbo v0.0.22 Enter ".help" for usage hints. Connected to a transient in-memory database. Use ".open FILENAME" to reopen on a persistent database limbo> CREATE TABLE t(x); limbo> CREATE INDEX t_idx ON t(x); limbo> DROP INDEX t_idx; ```
Limbo Wasm bindings
This source tree contains Limbo Wasm bindings.
Building
For nodejs
./scripts/build
For web
./scripts/build web
Browser Support
Adding experimental support for limbo in the browser. This is done by adding support for OPFS as a VFS.
To see a basic example of this npm run dev and navigate to http://localhost:5173/limbo-opfs-test.html and open the console.
Design
This design mirrors sqlite's approach for OPFS support. It has a sync api in opfs.js which communicates with opfs-sync-proxy.js via SharedArrayBuffer and Atomics.wait. This allows us to live the VFS api in lib.rs unchanged.
You can see limbo-opfs-test.html for basic usage.
UTs
There are OPFS specific unit tests and then some basic limbo unit tests. These are run via npm test or npx vitest.
For more info and log output you can run npx vitest:ui but you can get some parallel execution of test cases which cause issues.
TODO
-[] Add a wrapper js that provides a clean interface to the limbo-worker.js
-[] Add more tests for opfs.js operations
-[] Add error return handling
-[] Make sure posix flags for open are handled instead of just being ignored (this requires creating a mapping of behaviors from posix to opfs as far as makes sense)