github.com/traefik/yaegi@v0.15.1/_test/issue-1361.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"math"
     6  )
     7  
     8  type obj struct {
     9  	num float64
    10  }
    11  
    12  type Fun func(o *obj) (r *obj, err error)
    13  
    14  func numFun(fn func(f float64) float64) Fun {
    15  	return func(o *obj) (*obj, error) {
    16  		return &obj{fn(o.num)}, nil
    17  	}
    18  }
    19  
    20  func main() {
    21  	f := numFun(math.Cos)
    22  	r, err := f(&obj{})
    23  	fmt.Println(r, err)
    24  }
    25  
    26  // Output:
    27  // &{1} <nil>