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Named symbol references.

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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
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13
src/symlist.c
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@@ -35,7 +35,7 @@ symbol_list_sym_new (symbol *sym, location loc)
res->content_type = SYMLIST_SYMBOL;
res->content.sym = sym;
res->location = loc;
res->location = res->sym_loc = loc;
res->midrule = NULL;
res->midrule_parent_rule = NULL;
@@ -47,6 +47,8 @@ symbol_list_sym_new (symbol *sym, location loc)
res->dprec = 0;
res->merger = 0;
res->named_ref = NULL;
res->next = NULL;
return res;
@@ -64,7 +66,8 @@ symbol_list_type_new (uniqstr type_name, location loc)
res->content_type = SYMLIST_TYPE;
res->content.type_name = type_name;
res->location = loc;
res->location = res->sym_loc = loc;
res->named_ref = NULL;
res->next = NULL;
return res;
@@ -81,7 +84,8 @@ symbol_list_default_tagged_new (location loc)
symbol_list *res = xmalloc (sizeof *res);
res->content_type = SYMLIST_DEFAULT_TAGGED;
res->location = loc;
res->location = res->sym_loc = loc;
res->named_ref = NULL;
res->next = NULL;
return res;
@@ -98,7 +102,8 @@ symbol_list_default_tagless_new (location loc)
symbol_list *res = xmalloc (sizeof *res);
res->content_type = SYMLIST_DEFAULT_TAGLESS;
res->location = loc;
res->location = res->sym_loc = loc;
res->named_ref = NULL;
res->next = NULL;
return res;