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      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 	// This would be nice, but it has never worked.
     78 	/*
     79 		if c := C.myfloat_def; c != 1.5 {
     80 			t.Errorf("C.myint_def = %v, want 1.5", c)
     81 		}
     82 		{
     83 			const c = C.myfloat_def
     84 			if c != 1.5 {
     85 			t.Errorf("C.myint as const = %v, want 1.5", c)
     86 			}
     87 		}
     88 	*/
     89 
     90 	if s := C.mystring_def; s != "hello" {
     91 		t.Errorf("C.mystring_def = %q, want %q", s, "hello")
     92 	}
     93 }
     94