diff options
Diffstat (limited to 'gcc/rust/expand/rust-macro-expand.h')
| -rw-r--r-- | gcc/rust/expand/rust-macro-expand.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/rust/expand/rust-macro-expand.h b/gcc/rust/expand/rust-macro-expand.h index d8a2d50..d49c775 100644 --- a/gcc/rust/expand/rust-macro-expand.h +++ b/gcc/rust/expand/rust-macro-expand.h @@ -193,6 +193,31 @@ struct MacroExpander bool match_matcher (Parser<MacroInvocLexer> &parser, AST::MacroMatcher &matcher); + /** + * Match any amount of matches + * + * @param parser Parser to use for matching + * @param matches All consecutive matches to identify + * @param match_amount Reference in which to store the ammount of succesful + * and valid matches + * + * @param lo_bound Lower bound of the matcher. When specified, the matcher + * will only succeed if it parses at *least* `lo_bound` fragments. If + * unspecified, the matcher could succeed when parsing 0 fragments. + * + * @param hi_bound Higher bound of the matcher. When specified, the matcher + * will only succeed if it parses *less than* `hi_bound` fragments. If + * unspecified, the matcher could succeed when parsing an infinity of + * fragments. + * + * @return true if matching was successful and within the given limits, false + * otherwise + */ + bool match_n_matches (Parser<MacroInvocLexer> &parser, + std::vector<std::unique_ptr<AST::MacroMatch>> &matches, + size_t &match_amount, size_t lo_bound = 0, + size_t hi_bound = 0); + static std::vector<std::unique_ptr<AST::Token>> substitute_tokens (std::vector<std::unique_ptr<AST::Token>> &input, std::vector<std::unique_ptr<AST::Token>> ¯o, |