package main

import (
	"unsafe"

	"github.com/goplus/llgo/c"
	"github.com/goplus/llgo/c/neco"
)

func main() {
	neco.Main(func() c.Int {
		// Create a new generator coroutine that is used to send ints.
		gen := new(neco.Gen)
		neco.GenStart(&gen, unsafe.Sizeof(int(0)), coroutine, 0)

		// Iterate over each int until the generator is closed.
		var i c.Int
		for {
			ret := neco.GenNext(gen, c.Pointer(&i))

			// c.Printf(c.Str("gen [%d, %d] "), ret, c.Int(neco.NECO_CLOSED))
			// c.Fflush(c.Stdout)

			if ret != c.Int(neco.CLOSED) {
				c.Printf(c.Str("%d\n"), i)
			} else {
				break
			}
		}

		// This coroutine no longer needs the generator.
		neco.GenRelease(gen)

		// c.Printf(c.Str("main3 end"))
		// c.Fflush(c.Stdout)

		return 0
	})
}

func coroutine(argc c.Int, argv ...any) {
	// Yield each int to the caller, one at a time.
	for i := 0; i < 10; i++ {
		neco.GenYield(c.Pointer(&i))
	}
	// c.Printf(c.Str("coroutine end"))
	// c.Fflush(c.Stdout)
}