diff options
Diffstat (limited to 'src/glsl/glcpp/glcpp-parse.y')
| -rw-r--r-- | src/glsl/glcpp/glcpp-parse.y | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y index f75834514f2..38d84046d57 100644 --- a/src/glsl/glcpp/glcpp-parse.y +++ b/src/glsl/glcpp/glcpp-parse.y @@ -57,6 +57,9 @@ _string_list_append_item (string_list_t *list, const char *str); static int _string_list_contains (string_list_t *list, const char *member, int *index); +static const char * +_string_list_has_duplicate (string_list_t *list); + static int _string_list_length (string_list_t *list); @@ -794,6 +797,25 @@ _string_list_contains (string_list_t *list, const char *member, int *index) return 0; } +/* Return duplicate string in list (if any), NULL otherwise. */ +const char * +_string_list_has_duplicate (string_list_t *list) +{ + string_node_t *node, *dup; + + if (list == NULL) + return NULL; + + for (node = list->head; node; node = node->next) { + for (dup = node->next; dup; dup = dup->next) { + if (strcmp (node->str, dup->str) == 0) + return node->str; + } + } + + return NULL; +} + int _string_list_length (string_list_t *list) { @@ -1980,9 +2002,16 @@ _define_function_macro (glcpp_parser_t *parser, token_list_t *replacements) { macro_t *macro, *previous; + const char *dup; _check_for_reserved_macro_name(parser, loc, identifier); + /* Check for any duplicate parameter names. */ + if ((dup = _string_list_has_duplicate (parameters)) != NULL) { + glcpp_error (loc, parser, "Duplicate macro parameter \"%s\"", + dup); + } + macro = ralloc (parser, macro_t); ralloc_steal (macro, parameters); ralloc_steal (macro, replacements); |