github.com/varialus/godfly@v0.0.0-20130904042352-1934f9f095ab/test/const5.go (about) 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 // Test that len non-constants are not constants, http://golang.org/issue/3244. 8 9 package p 10 11 var b struct { 12 a[10]int 13 } 14 15 var m map[string][20]int 16 17 var s [][30]int 18 19 func f() *[40]int 20 var c chan *[50]int 21 22 const ( 23 n1 = len(b.a) 24 n2 = len(m[""]) 25 n3 = len(s[10]) 26 27 n4 = len(f()) // ERROR "is not a constant|is not constant" 28 n5 = len(<-c) // ERROR "is not a constant|is not constant" 29 30 n6 = cap(f()) // ERROR "is not a constant|is not constant" 31 n7 = cap(<-c) // ERROR "is not a constant|is not constant" 32 ) 33