Make a new test to enforce the sizes of all structs and enums in the C API....

ppapi/c/pp_macros.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_C_PP_MACROS_H_
 #define PPAPI_C_PP_MACROS_H_
 
 /**
  * @file
  * Defines the API ...
@@ skipping 35 matching lines @@
 
    NAME is the name of the type without any spaces or the struct or enum
    keywords.
 
    CTYPENAME is the typename required by C.  I.e., for a struct or enum, the
    appropriate keyword must be included.
 
    SIZE is the expected size in bytes.
  */
 #define PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, CTYPENAME, SIZE) \
-struct _dummy_struct_for_##NAME { \
+struct Dummy_Struct_For_##NAME { \
 char _COMPILE_ASSERT_FAILED_The_type_named_ \
 ## NAME ## _is_not_ ## SIZE ## \
 _bytes_wide[(sizeof(CTYPENAME) == SIZE) ? 1 : -1]; }
 
 /* PP_COMPILE_ASSERT_SIZE_IN_BYTES is for typenames that contain no spaces.
    E.g.:
    PP_COMPILE_ASSERT_SIZE_IN_BYTES(int, 4);
-   typedef struct { int a; } Foo;
+   typedef enum { int a; } Foo;

[brettw, 2010/11/24 22:36:40]

What does declaring an int inside an enum mean? Why did you change this?

[dmichael(do not use this one), 2010/11/24 23:23:15]

I changed it to enum just because enums are more likely to be typedefed and
therefore be passed to this macro.  I just didn't look carefully when I changed
it.  I just changed it back (and fixed up the example for the new ENUM macro
below).

    PP_COMPILE_ASSERT_SIZE_IN_BYTES(Foo, 4);
  */
 #define PP_COMPILE_ASSERT_SIZE_IN_BYTES(NAME, SIZE) \
 PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, NAME, SIZE)
 
 /* PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES is for typenames that contain 'struct'
    in C.  That is, struct names that are not typedefs.
    E.g.:
    struct Foo { int a; };
    PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(Foo, 4);
  */
 #define PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(NAME, SIZE) \
 PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, struct NAME, SIZE)
 
+/* PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES is for typenames that contain 'enum'
+   in C.  That is, enum names that are not typedefs.
+   E.g.:
+   enum Foo { int a; };
+   PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES(Foo, 4);
+ */
+#define PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES(NAME, SIZE) \
+PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, enum NAME, SIZE)
+
 /**
  * @}
  * End of addtogroup PP
  */
 
 #endif  // PPAPI_C_PP_MACROS_H_