Undefined symbol

[cpunion]

foo.go:

package foo

type Promise[T any] struct {
}

func (p *Promise[T]) Done() bool {
	return false
}

type promise interface {
	Done() bool
}

func Run[T any](fn func() (co *Promise[T])) (t T) {
	run(fn())
	return
}

func run(p promise) {}

func (p *Promise[TOut]) Async(fn func(resolve func(TOut))) *Promise[TOut] {
	panic("should not executed")
}

main.go:

package main

import (
	"github.com/goplus/llgo/x/foo"
)

func Sleep() (co *foo.Promise[int]) {
	return co.Async(func(resolve func(int)) {
	})
}

func main() {
	foo.Run(func() (co *foo.Promise[int]) {
		return
	})
}

Build:

go run ../../cmd/llgo build -o bar .
# github.com/goplus/llgo/cmd/llgo
ld: warning: reexported library with install name '/opt/homebrew/opt/llvm/lib/libunwind.1.dylib' found at '/opt/homebrew/Cellar/llvm/18.1.8/lib/libunwind.1.0.dylib' couldn't be matched with any parent library and will be linked directly
# github.com/goplus/llgo/x/bar
ld64.lld: error: undefined symbol: github.com/goplus/llgo/x/foo.(*Promise).Done
>>> referenced by /var/folders/f2/88rgt2bx533_m89qy6pqqp8w0000gn/T/ed0bfaba5928eb7298f733aea88d79b885f5aa543956050eb77db72fc0d999c5-d-5fb490.o:(symbol main.init$after+0xf28)
>>> referenced by /var/folders/f2/88rgt2bx533_m89qy6pqqp8w0000gn/T/ed0bfaba5928eb7298f733aea88d79b885f5aa543956050eb77db72fc0d999c5-d-5fb490.o:(symbol main.init$after+0xf24)

ld64.lld: error: undefined symbol: github.com/goplus/llgo/x/foo.(*Promise).Async
>>> referenced by /var/folders/f2/88rgt2bx533_m89qy6pqqp8w0000gn/T/ed0bfaba5928eb7298f733aea88d79b885f5aa543956050eb77db72fc0d999c5-d-5fb490.o:(symbol main.init$after+0xcd8)
>>> referenced by /var/folders/f2/88rgt2bx533_m89qy6pqqp8w0000gn/T/ed0bfaba5928eb7298f733aea88d79b885f5aa543956050eb77db72fc0d999c5-d-5fb490.o:(symbol main.init$after+0xcd4)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
exit status 1