Go 言語の戻り値の型推論オープンソース プロジェクト

package main

import (
    "fmt"

    "github.com/joel/goreflect"
)

func getSum(a, b int) {
    fmt.Println("The sum of", a, "and", b, "is", a+b)
}

func main() {
    returnType := goreflect.FuncSig(getSum).Returns()
    fmt.Println("The return type of getSum is", returnType)
}

package main

import (
    "fmt"

    "github.com/gobuffalo/gotypes"
)

type MyString string

func getStringValue(s MyString) {
    fmt.Println("The value of s is", s)
}

func main() {
    returnType, _ := gotypes.Guess(getStringValue)
    fmt.Println("The return type of getStringValue is", returnType)
}

package main

import (
    "fmt"

    "golang.org/x/exp/slices"
)

func getDifference(a, b int) int {
    return a - b
}

func main() {
    returnType := slices.FuncSig(getDifference).Returns()
    fmt.Println("The return type of getDifference is", returnType)
}