libgo/misc/cgo/test/issue6612.go

   1 // Copyright 2013 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // golang.org/issue/6612
   6 // Test new scheme for deciding whether C.name is an expression, type, constant.
   7 // Clang silences some warnings when the name is a #defined macro, so test those too
   8 // (even though we now use errors exclusively, not warnings).
   9
  10 package cgotest
  11
  12 /*
  13 void myfunc(void) {}
  14 int myvar = 5;
  15 const char *mytext = "abcdef";
  16 typedef int mytype;
  17 enum {
  18         myenum = 1234,
  19 };
  20
  21 #define myfunc_def myfunc
  22 #define myvar_def myvar
  23 #define mytext_def mytext
  24 #define mytype_def mytype
  25 #define myenum_def myenum
  26 #define myint_def 12345
  27 #define myfloat_def 1.5
  28 #define mystring_def "hello"
  29 */
  30 import "C"
  31
  32 import "testing"
  33
  34 func testNaming(t *testing.T) {
  35         C.myfunc()
  36         C.myfunc_def()
  37         if v := C.myvar; v != 5 {
  38                 t.Errorf("C.myvar = %d, want 5", v)
  39         }
  40         if v := C.myvar_def; v != 5 {
  41                 t.Errorf("C.myvar_def = %d, want 5", v)
  42         }
  43         if s := C.GoString(C.mytext); s != "abcdef" {
  44                 t.Errorf("C.mytext = %q, want %q", s, "abcdef")
  45         }
  46         if s := C.GoString(C.mytext_def); s != "abcdef" {
  47                 t.Errorf("C.mytext_def = %q, want %q", s, "abcdef")
  48         }
  49         if c := C.myenum; c != 1234 {
  50                 t.Errorf("C.myenum = %v, want 1234", c)
  51         }
  52         if c := C.myenum_def; c != 1234 {
  53                 t.Errorf("C.myenum_def = %v, want 1234", c)
  54         }
  55         {
  56                 const c = C.myenum
  57                 if c != 1234 {
  58                         t.Errorf("C.myenum as const = %v, want 1234", c)
  59                 }
  60         }
  61         {
  62                 const c = C.myenum_def
  63                 if c != 1234 {
  64                         t.Errorf("C.myenum as const = %v, want 1234", c)
  65                 }
  66         }
  67         if c := C.myint_def; c != 12345 {
  68                 t.Errorf("C.myint_def = %v, want 12345", c)
  69         }
  70         {
  71                 const c = C.myint_def
  72                 if c != 12345 {
  73                         t.Errorf("C.myint as const = %v, want 12345", c)
  74                 }
  75         }
  76
  77         if c := C.myfloat_def; c != 1.5 {
  78                 t.Errorf("C.myint_def = %v, want 1.5", c)
  79         }
  80         {
  81                 const c = C.myfloat_def
  82                 if c != 1.5 {
  83                         t.Errorf("C.myint as const = %v, want 1.5", c)
  84                 }
  85         }
  86
  87         if s := C.mystring_def; s != "hello" {
  88                 t.Errorf("C.mystring_def = %q, want %q", s, "hello")
  89         }
  90 }