Wacro Example

This is an example macro built using Wacro. You're encouraged to go through the Wacro README for context.

Updating the raw macro

This step is necessary if you update the ExampleRaw target; you must update ExampleRaw.wasm.dylib in tandem.

1. Install a WASM-compatible toolchain from swift.org/download. A recent main snapshot should definitely work, and the 6.0 snapshots might also work (untested).
2. Install a WASI SDK: see https://book.swiftwasm.org/getting-started/setup.html#experimental-swift-sdk
3. Run make wasm.

You should see that the file /ExampleRaw.wasm.dylib has been changed after running these steps. This is a bona-fide WebAssembly module; the dylib extension is merely to pacify the macOS sandbox.

Building the host

(You can switch back to a production toolchain for this)

1. Run make client. If you're on macOS and want to use the WebKit runner (faster), use make client WK=1.
2. That's all! You can now run the produced executable at .build/debug/ExampleClient.

Since compiling the host follows standard procedure, you can build and run with Xcode as well. Just open Package.swift in Xcode and build ExampleClient.