mirror of
https://github.com/golang/go
synced 2024-11-11 20:40:21 -07:00
bug285: assignment compatible map keys must be accepted
R=r CC=golang-dev https://golang.org/cl/1473042
This commit is contained in:
parent
04721ff309
commit
86c9aca41e
118
test/bugs/bug285.go
Normal file
118
test/bugs/bug285.go
Normal file
@ -0,0 +1,118 @@
|
||||
// $G $D/$F.go || echo BUG: should compile
|
||||
|
||||
// Copyright 2010 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Test for issue 778: Map key values that are assignment
|
||||
// compatible with the map key type must be accepted according
|
||||
// to the spec: http://golang.org/doc/go_spec.html#Indexes .
|
||||
|
||||
package main
|
||||
|
||||
type T2 struct {
|
||||
x int
|
||||
}
|
||||
|
||||
func (t *T2) f() int { return t.x }
|
||||
|
||||
func main() {
|
||||
type B bool
|
||||
b := B(false)
|
||||
mb := make(map[B]int)
|
||||
mb[false] = 42 // this should work: false is assignment compatible with B
|
||||
mb[b] = 42
|
||||
|
||||
type Z int
|
||||
z := Z(0)
|
||||
mz := make(map[Z]int)
|
||||
mz[0] = 42
|
||||
mz[z] = 42
|
||||
|
||||
type S string
|
||||
s := S("foo")
|
||||
ms := make(map[S]int)
|
||||
ms["foo"] = 42
|
||||
ms[s] = 42
|
||||
|
||||
type T struct {
|
||||
x int
|
||||
}
|
||||
type P *T
|
||||
p := P(nil)
|
||||
mp := make(map[P]int)
|
||||
mp[nil] = 42
|
||||
mp[p] = 42
|
||||
mp[&T{7}] = 42
|
||||
|
||||
type F func(x int)
|
||||
f := func(x int) {}
|
||||
mf := make(map[F]int)
|
||||
mf[nil] = 42
|
||||
mf[f] = 42
|
||||
mf[func(x int) {}] = 42
|
||||
|
||||
type M map[int]int
|
||||
m := make(M)
|
||||
mm := make(map[M]int)
|
||||
mm[nil] = 42
|
||||
mm[m] = 42
|
||||
mm[make(M)] = 42
|
||||
|
||||
type C chan int
|
||||
c := make(C)
|
||||
mc := make(map[C]int)
|
||||
mc[nil] = 42
|
||||
mc[c] = 42
|
||||
mc[make(C)] = 42
|
||||
|
||||
type I1 interface{}
|
||||
type I2 interface {
|
||||
f() int
|
||||
}
|
||||
var i0 interface{} = z
|
||||
var i1 I1 = p
|
||||
m0 := make(map[interface{}]int)
|
||||
m1 := make(map[I1]int)
|
||||
m2 := make(map[I2]int)
|
||||
m0[i0] = 42
|
||||
m0[i1] = 42
|
||||
m0[z] = 42 // this should work: z is assignment-compatible with interface{}
|
||||
m0[new(struct {
|
||||
x int
|
||||
})] = 42 // this should work: *struct{x int} is assignment-compatible with interface{}
|
||||
m0[p] = 42 // this should work: p is assignment-compatible with interface{}
|
||||
m0[false] = 42 // this should work: false is assignment-compatible with interface{}
|
||||
m0[17] = 42 // this should work: 17 is assignment-compatible with interface{}
|
||||
m0["foo"] = 42 // this should work: "foo" is assignment-compatible with interface{}
|
||||
|
||||
m1[i0] = 42
|
||||
m1[i1] = 42
|
||||
m1[new(struct {
|
||||
x int
|
||||
})] = 42 // this should work: *struct{x int} is assignment-compatible with I1
|
||||
m1[false] = 42 // this should work: false is assignment-compatible with I1
|
||||
m1[17] = 42 // this should work: 17 is assignment-compatible with I1
|
||||
m1["foo"] = 42 // this should work: "foo" is assignment-compatible with I1
|
||||
|
||||
var t2 T2
|
||||
m2[new(T2)] = 42 // this should work: *T2 is assignment-compatible with I2
|
||||
m2[t2] = 42 // this should work: t2 is assignment-compatible with I2
|
||||
}
|
||||
|
||||
/*
|
||||
6g -e bug286.go
|
||||
bug286.go:23: invalid map index false - need type B
|
||||
bug286.go:80: invalid map index z - need type interface { }
|
||||
bug286.go:83: invalid map index new(struct { x int }) - need type interface { }
|
||||
bug286.go:84: invalid map index p - need type interface { }
|
||||
bug286.go:85: invalid map index false - need type interface { }
|
||||
bug286.go:86: invalid map index 17 - need type interface { }
|
||||
bug286.go:87: invalid map index "foo" - need type interface { }
|
||||
bug286.go:93: invalid map index new(struct { x int }) - need type I1
|
||||
bug286.go:94: invalid map index false - need type I1
|
||||
bug286.go:95: invalid map index 17 - need type I1
|
||||
bug286.go:96: invalid map index "foo" - need type I1
|
||||
bug286.go:99: invalid map index new(T2) - need type I2
|
||||
bug286.go:100: invalid map index t2 - need type I2
|
||||
*/
|
@ -220,3 +220,17 @@ errchk: bugs/bug284.go: unmatched error messages:
|
||||
==================================================
|
||||
bugs/bug284.go:186: internal compiler error: typename ideal
|
||||
==================================================
|
||||
|
||||
=========== bugs/bug285.go
|
||||
bugs/bug285.go:23: invalid map index false - need type B
|
||||
bugs/bug285.go:80: invalid map index z - need type interface { }
|
||||
bugs/bug285.go:83: invalid map index new(struct { x int }) - need type interface { }
|
||||
bugs/bug285.go:84: invalid map index p - need type interface { }
|
||||
bugs/bug285.go:85: invalid map index false - need type interface { }
|
||||
bugs/bug285.go:86: invalid map index 17 - need type interface { }
|
||||
bugs/bug285.go:87: invalid map index "foo" - need type interface { }
|
||||
bugs/bug285.go:93: invalid map index new(struct { x int }) - need type I1
|
||||
bugs/bug285.go:94: invalid map index false - need type I1
|
||||
bugs/bug285.go:95: invalid map index 17 - need type I1
|
||||
bugs/bug285.go:95: too many errors
|
||||
BUG: should compile
|
||||
|
Loading…
Reference in New Issue
Block a user