1 // errorcheck 2 3 // Copyright 2011 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 // Verify that illegal composite literals are detected. 8 // Does not compile. 9 10 package main 11 12 var m map[int][3]int 13 14 func f() [3]int 15 16 func fp() *[3]int 17 18 var mp map[int]*[3]int 19 20 var ( 21 _ = [3]int{1, 2, 3}[:] // ERROR "slice of unaddressable value" 22 _ = m[0][:] // ERROR "slice of unaddressable value" 23 _ = f()[:] // ERROR "slice of unaddressable value" 24 25 // these are okay because they are slicing a pointer to an array 26 _ = (&[3]int{1, 2, 3})[:] 27 _ = mp[0][:] 28 _ = fp()[:] 29 ) 30 31 type T struct { 32 i int 33 f float64 34 s string 35 next *T 36 } 37 38 var ( 39 _ = &T{0, 0, "", nil} // ok 40 _ = &T{i: 0, f: 0, s: "", next: {}} // ERROR "missing type in composite literal|omit types within composite literal" 41 _ = &T{0, 0, "", {}} // ERROR "missing type in composite literal|omit types within composite literal" 42 ) 43 44 type M map[T]T 45 46 var ( 47 _ = M{{i:1}: {i:2}} 48 _ = M{T{i:1}: {i:2}} 49 _ = M{{i:1}: T{i:2}} 50 _ = M{T{i:1}: T{i:2}} 51 ) 52 53 type S struct { s [1]*M1 } 54 type M1 map[S]int 55 var _ = M1{{s:[1]*M1{&M1{{}:1}}}:2} 56 57
