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- bug: empty switches don't compile

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R=rsc
DELTA=32  (28 added, 3 deleted, 1 changed)
OCL=20301
CL=20340
This commit is contained in:
Robert Griesemer 2008-12-03 10:41:43 -08:00
parent c8a66a98ff
commit 4d76e8e142
2 changed files with 33 additions and 4 deletions
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23
test/bugs/bug128.go Normal file
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@ -0,0 +1,23 @@
// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: should compile
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
func main() {
switch {
// empty switch is allowed according to syntax
// unclear why it shouldn't be allowed
}
switch tag := 0; tag {
// empty switch is allowed according to syntax
// unclear why it shouldn't be allowed
}
}
/*
uetli:~/Source/go1/test/bugs gri$ 6g bug127.go
bug127.go:5: switch statement must have case labels
bug127.go:9: switch statement must have case labels
*/

14
test/golden.out
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@ -11,10 +11,11 @@ errchk: ./convlit.go: unmatched error messages:
==================================================
./convlit.go:8: cannot convert non-integer constant to int
./convlit.go:11: overflow converting constant to int
./convlit.go:12: overflow in float constant
./convlit.go:12: overflow converting constant to float
./convlit.go:8: cannot convert non-integer constant to int
./convlit.go:9: cannot convert non-integer constant to int
./convlit.go:11: overflow converting constant to int
./convlit.go:12: overflow converting constant to float
==================================================
=========== ./helloworld.go
@ -150,9 +151,6 @@ panic PC=xxx
BUG: should not fail
=========== bugs/bug120.go
Bad float64 const: 1e23+8.388608e6 want 1.0000000000000001e+23 got 1e+23
want exact: 100000000000000008388608
got exact: 99999999999999991611392
Bad float64 const: 1e23+1 want 1.0000000000000001e+23 got 1e+23
want exact: 100000000000000008388608
got exact: 99999999999999991611392
@ -176,6 +174,14 @@ BUG: errchk: command succeeded unexpectedly: 6g bugs/bug125.go
=========== bugs/bug126.go
BUG: errchk: command succeeded unexpectedly: 6g bugs/bug126.go
=========== bugs/bug127.go
BUG: errchk: command succeeded unexpectedly: 6g bugs/bug127.go
=========== bugs/bug128.go
bugs/bug128.go:5: switch statement must have case labels
bugs/bug128.go:9: switch statement must have case labels
BUG: should compile
=========== fixedbugs/bug016.go
fixedbugs/bug016.go:7: overflow converting constant to uint