Index: bison/src/bison/2.4.1/bison-2.4.1-src/src/symlist.h |
=================================================================== |
--- bison/src/bison/2.4.1/bison-2.4.1-src/src/symlist.h (revision 0) |
+++ bison/src/bison/2.4.1/bison-2.4.1-src/src/symlist.h (revision 0) |
@@ -0,0 +1,118 @@ |
+/* Lists of symbols for Bison |
+ |
+ Copyright (C) 2002, 2005, 2006, 2007 Free Software Foundation, Inc. |
+ |
+ This file is part of Bison, the GNU Compiler Compiler. |
+ |
+ This program is free software: you can redistribute it and/or modify |
+ it under the terms of the GNU General Public License as published by |
+ the Free Software Foundation, either version 3 of the License, or |
+ (at your option) any later version. |
+ |
+ This program is distributed in the hope that it will be useful, |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
+ GNU General Public License for more details. |
+ |
+ You should have received a copy of the GNU General Public License |
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
+ |
+#ifndef SYMLIST_H_ |
+# define SYMLIST_H_ |
+ |
+# include "location.h" |
+# include "scan-code.h" |
+# include "symtab.h" |
+ |
+/* A list of symbols, used during the parsing to store the rules. */ |
+typedef struct symbol_list |
+{ |
+ /** |
+ * Whether this node contains a symbol, a semantic type, a \c <*>, or a |
+ * \c <>. |
+ */ |
+ enum { |
+ SYMLIST_SYMBOL, SYMLIST_TYPE, |
+ SYMLIST_DEFAULT_TAGGED, SYMLIST_DEFAULT_TAGLESS |
+ } content_type; |
+ union { |
+ /** |
+ * The symbol or \c NULL iff |
+ * <tt>symbol_list::content_type = SYMLIST_SYMBOL</tt>. |
+ */ |
+ symbol *sym; |
+ /** |
+ * The semantic type iff <tt>symbol_list::content_type = SYMLIST_TYPE</tt>. |
+ */ |
+ uniqstr type_name; |
+ } content; |
+ location location; |
+ |
+ /* If this symbol is the generated lhs for a midrule but this is the rule in |
+ whose rhs it appears, MIDRULE = a pointer to that midrule. */ |
+ struct symbol_list *midrule; |
+ |
+ /* If this symbol is the generated lhs for a midrule and this is that |
+ midrule, MIDRULE_PARENT_RULE = a pointer to the rule in whose rhs it |
+ appears, and MIDRULE_PARENT_RHS_INDEX = its rhs index (1-origin) in the |
+ parent rule. */ |
+ struct symbol_list *midrule_parent_rule; |
+ int midrule_parent_rhs_index; |
+ |
+ /* The action is attached to the LHS of a rule, but action properties for |
+ * each RHS are also stored here. */ |
+ code_props action_props; |
+ |
+ /* Precedence/associativity. */ |
+ symbol *ruleprec; |
+ int dprec; |
+ int merger; |
+ location merger_declaration_location; |
+ |
+ /* The list. */ |
+ struct symbol_list *next; |
+} symbol_list; |
+ |
+ |
+/** Create a list containing \c sym at \c loc. */ |
+symbol_list *symbol_list_sym_new (symbol *sym, location loc); |
+ |
+/** Create a list containing \c type_name at \c loc. */ |
+symbol_list *symbol_list_type_new (uniqstr type_name, location loc); |
+ |
+/** Create a list containing a \c <*> at \c loc. */ |
+symbol_list *symbol_list_default_tagged_new (location loc); |
+/** Create a list containing a \c <> at \c loc. */ |
+symbol_list *symbol_list_default_tagless_new (location loc); |
+ |
+/** Print this list. |
+ |
+ \pre For every node \c n in the list, <tt>n->content_type = |
+ SYMLIST_SYMBOL</tt>. */ |
+void symbol_list_syms_print (const symbol_list *l, FILE *f); |
+ |
+/** Prepend \c node to \c list. */ |
+symbol_list *symbol_list_prepend (symbol_list *list, symbol_list *node); |
+ |
+/** Free \c list, but not the items it contains. */ |
+void symbol_list_free (symbol_list *list); |
+ |
+/** Return the length of \c l. */ |
+int symbol_list_length (symbol_list const *l); |
+ |
+/** Get item \c n in symbol list \c l. */ |
+symbol_list *symbol_list_n_get (symbol_list *l, int n); |
+ |
+/* Get the data type (alternative in the union) of the value for |
+ symbol N in rule RULE. */ |
+uniqstr symbol_list_n_type_name_get (symbol_list *l, location loc, int n); |
+ |
+/** Set the \c \%destructor for \c node as \c code at \c loc. */ |
+void symbol_list_destructor_set (symbol_list *node, char const *code, |
+ location loc); |
+ |
+/** Set the \c \%printer for \c node as \c code at \c loc. */ |
+void symbol_list_printer_set (symbol_list *node, char const *code, |
+ location loc); |
+ |
+#endif /* !SYMLIST_H_ */ |
Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\src\symlist.h |
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Added: svn:eol-style |
+ LF |