1 // run 2 3 // Copyright 2017 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Test forms of method expressions T.m where T is 8 // a literal type. 9 10 package main 11 12 var got, want string 13 14 type I interface { 15 m() 16 } 17 18 type S struct { 19 } 20 21 func (S) m() { got += " m()" } 22 func (S) m1(s string) { got += " m1(" + s + ")" } 23 24 type T int 25 26 func (T) m2() { got += " m2()" } 27 28 func main() { 29 // method expressions with named receiver types 30 I.m(S{}) 31 want += " m()" 32 33 S.m1(S{}, "a") 34 want += " m1(a)" 35 36 // method expressions with literal receiver types 37 f := interface{ m1(string) }.m1 38 f(S{}, "b") 39 want += " m1(b)" 40 41 interface{ m1(string) }.m1(S{}, "c") 42 want += " m1(c)" 43 44 x := S{} 45 interface{ m1(string) }.m1(x, "d") 46 want += " m1(d)" 47 48 // cannot link the call below - see #22444 49 // g := struct{ T }.m2 50 // g(struct{T}{}) 51 // want += " m2()" 52 53 if got != want { 54 panic("got" + got + ", want" + want) 55 } 56 } 57
