Named symbol references.

Discussed in:
http://lists.gnu.org/archive/html/bison-patches/2009-01/msg00000.html
http://lists.gnu.org/archive/html/bison-patches/2009-02/msg00002.html
http://lists.gnu.org/archive/html/bison-patches/2009-03/msg00009.html

	* src/parse-gram.y: Add new syntax (named_ref.opt).
	* src/reader.c: Store named refs in symbol lists.
	* src/reader.h: New argument for symbol_append and
	action_append functions.
	* src/scan-code.h: Add new field (named_ref) into
	code_props data structure. Keeps named ref of midrule
	actions.
	* src/scan-code.l: Support for named refs in semantic
	action code. New function 'parse_named_ref'.
	* src/scan-gram.l: Support bracketed id.
	* src/symlist.c: Store named refs in symbol lists.
	* src/symlist.h: New field in symbol list: named_ref.
	* src/named-ref.h: New file, a struct for named_ref.
	* src/named-ref.c: New file, named_ref_new function.
	* src/Makefile.am: Add two new files.
	* tests/testsuite.at: Include new test group:
	* tests/named-refs.at: this new file.
This commit is contained in:
Alex Rozenman
2009-05-23 18:48:03 +03:00
parent 67f8cf51c3
commit 7685e2f7ba
14 changed files with 1161 additions and 86 deletions

View File

@@ -23,6 +23,7 @@
# include "location.h"
# include "symlist.h"
# include "named-ref.h"
# include "parse-gram.h"
@@ -42,14 +43,17 @@ char const *token_name (int type);
/* From reader.c. */
void grammar_start_symbol_set (symbol *sym, location loc);
void grammar_current_rule_begin (symbol *lhs, location loc);
void grammar_current_rule_begin (symbol *lhs, location loc,
named_ref *lhs_named_ref);
void grammar_current_rule_end (location loc);
void grammar_midrule_action (void);
void grammar_current_rule_prec_set (symbol *precsym, location loc);
void grammar_current_rule_dprec_set (int dprec, location loc);
void grammar_current_rule_merge_set (uniqstr name, location loc);
void grammar_current_rule_symbol_append (symbol *sym, location loc);
void grammar_current_rule_action_append (const char *action, location loc);
void grammar_current_rule_symbol_append (symbol *sym, location loc,
named_ref *named_ref);
void grammar_current_rule_action_append (const char *action, location loc,
named_ref *named_ref);
void reader (void);
void free_merger_functions (void);