TinyGo Support and Cloudflare Workers Example

[ben-krieger]

$ GOOS=js GOARCH=wasm go build -ldflags '-s -w' -o go-rv.wasm ./examples/wasm/main.go && du -h go-rv.wasm
12M    go-rv.wasm
$ tinygo build -target wasm -no-debug -gc leaking -o tinygo-rv.wasm ./examples/wasm/main.go && du -h tinygo-rv.wasm
1.5M    tinygo-rv.wasm

~88% size reduction before compression

Also, updated sqlite module to not use transactions, because Cloudflare D1 does not support them.

Tracking upstream PRs that need to be merged and released first:

• [x] SQLite BLOB support: https://github.com/syumai/workers/pull/128
• [x] Non-chunked HTTP responses: https://github.com/syumai/workers/pull/129
• [x] HTTP and Cron in same Worker: https://github.com/syumai/workers/pull/130
• [x] Add a couple reflect methods and fix reflect.Copy: https://github.com/tinygo-org/tinygo/pull/4543

Other tasks:

• [ ] Remove usage of (*http.Request).PathValue in non-TinyGo code
• [ ] Document required TinyGo version
• [x] Remove syumai/workers fork replace statement in examples/go.mod
• [ ] Add TinyGo CI tests for at least ., ./cbor, and ./http
• [x] Investigate upsert in SetRVBlob setting rv to []byte{0x00}