Merge pull request #207 from bytecodealliance/ydnar/tidy

wit/bindgen: tidy up .wasm.go file generation

Author: ydnar

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 ### Added
 
 - Go [type aliases](https://go.dev/ref/spec#Alias_declarations) are now generated for each WIT type alias (`type foo = bar`). Deep chains of type aliases (`type b = a; type c = b;`) are fully supported. Generated documentation now reflects whether a type is an alias. Fixes [#204](https://github.com/bytecodealliance/wasm-tools-go/issues/204).
+- `go:wasmimport` and `go:wasmexport` functions are now generated in a separate `.wasm.go` file. This helps enable testing or use of generated packages outside of WebAssembly.
 - `wit-bindgen-go wit` now accepts a `--world` argument in the form of `imports`, `wasi:clocks/imports`, or `wasi:clocks/imports@0.2.0`. This filters the serialized WIT to a specific world and interfaces it references. This can be used to generate focused WIT for a specific world with a minimal set of dependencies.
 
 ### Changed

Makefile

@@ -12,3 +12,12 @@ $(wit_files):
 .PHONY: golden
 golden: json
 	go test ./wit -update
+
+# generated writes test Go code to the filesystem
+.PHONY: generated
+generated: clean
+	go test ./wit/bindgen -write
+
+.PHONY: clean
+clean:
+	rm -rf ./generated/*