What´s the proper way to call a struct method from within an expressio ?

[tkoberle]

I cannot seem to get the proper way to call a struct´s method from within an application. I assume its due to fact that parameters are passed in via an interface{} field but I cant find any information on how to get around it.

I get a panic like this one :
panic: type main.Product has no method GetTicker (1:11)
| MyProduct.GetTicker()
| ..........^

Can you please advise ? Here´s a sample code snippet

https://go.dev/play/p/_ziiXltEKue

Regards

[antonmedv]

type Product struct {
	Ticker string
}

func (p *Product) GetTicker() string {
	return p.Ticker
}

type Env struct {
+	MyProduct *Product
-	MyProduct Product
}

func main() {
	code := `MyProduct.GetTicker()`

	program, err := expr.Compile(code, expr.Env(Env{}))
	if err != nil {
		panic(err)
	}

	env := Env{
+		MyProduct: &Product{
-		MyProduct: Product{
			Ticker: "PETR4",
		},
	}
	output, err := expr.Run(program, env)
	if err != nil {
		panic(err)
	}

	fmt.Println(output)
}

[tkoberle]

Thanks Anton