plugin

Overview ¶

examples/wasm_plugin/plugin/fib.go A WebAssembly plugin for Fibonacci calculation.

IMPORTANT: This MUST be built with TinyGo, not standard Go!

Build with TinyGo:

tinygo build -o fib.wasm -target=wasi fib.go

Standard Go's GOOS=wasip1 does NOT work for plugins because:

1. When main() returns, Go calls proc_exit(0) which closes the module
2. Even with select{} in main, there's a runtime check that prevents exported functions from being called until _start completes

TinyGo uses a different architecture that allows exported functions to remain callable after initialization.