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Disallow defining macros whose names start with "__" or "GL_".

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The GLSL specification reserves these for future use.
This commit is contained in:
Kenneth Graunke 2010-06-04 14:53:58 -07:00
parent e4b2731a25
commit 2ab0b13dd9
1 changed files with 20 additions and 0 deletions
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20
glcpp-parse.y
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@ -1344,6 +1344,22 @@ _glcpp_parser_print_expanded_token_list (glcpp_parser_t *parser,
_token_list_print (list);
}
void
_check_for_reserved_macro_name (const char *identifier)
{
/* According to the GLSL specification, macro names starting with "__"
* or "GL_" are reserved for future use. So, don't allow them.
*/
if (strncmp(identifier, "__", 2) == 0) {
fprintf (stderr, "Error: Macro names starting with \"__\" are reserved.\n");
exit(1);
}
if (strncmp(identifier, "GL_", 3) == 0) {
fprintf (stderr, "Error: Macro names starting with \"GL_\" are reserved.\n");
exit(1);
}
}
void
_define_object_macro (glcpp_parser_t *parser,
const char *identifier,
@ -1351,6 +1367,8 @@ _define_object_macro (glcpp_parser_t *parser,
{
macro_t *macro;
_check_for_reserved_macro_name(identifier);
macro = xtalloc (parser, macro_t);
macro->is_function = 0;
@ -1369,6 +1387,8 @@ _define_function_macro (glcpp_parser_t *parser,
{
macro_t *macro;
_check_for_reserved_macro_name(identifier);
macro = xtalloc (parser, macro_t);
macro->is_function = 1;