X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3be03b13e5fd9cc9ed119f26e429e6ab1dd3568d..c1d19e10c32844d17122b473840752003521d21b:/src/symlist.h?ds=inline diff --git a/src/symlist.h b/src/symlist.h index 6acb982e..ab9a4b5e 100644 --- a/src/symlist.h +++ b/src/symlist.h @@ -1,6 +1,6 @@ /* Lists of symbols for Bison - Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2002, 2005, 2006, 2007 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -23,20 +23,29 @@ # 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, or a - * \c \%symbol-default. + * Whether this node contains a symbol, a semantic type, a \c <*>, or a + * \c <>. */ - enum { SYMLIST_SYMBOL, SYMLIST_TYPE, SYMLIST_DEFAULT } content_type; + enum { + SYMLIST_SYMBOL, SYMLIST_TYPE, + SYMLIST_DEFAULT_TAGGED, SYMLIST_DEFAULT_TAGLESS + } content_type; union { - /** The symbol or \c NULL iff node_type = SYMLIST_SYMBOL. */ + /** + * The symbol or \c NULL iff + * symbol_list::content_type = SYMLIST_SYMBOL. + */ symbol *sym; - /** The semantic type iff node_type = SYMLIST_TYPE. */ + /** + * The semantic type iff symbol_list::content_type = SYMLIST_TYPE. + */ uniqstr type_name; } content; location location; @@ -52,12 +61,9 @@ typedef struct symbol_list struct symbol_list *midrule_parent_rule; int midrule_parent_rhs_index; - /* The action is attached to the LHS of a rule. */ - const char *action; - location action_location; - - /* Whether this symbol's value is used in the current action. */ - bool used; + /* 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; @@ -76,8 +82,10 @@ 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 \%symbol-default at \c loc. */ -symbol_list *symbol_list_default_new (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. @@ -101,15 +109,12 @@ symbol_list *symbol_list_n_get (symbol_list *l, int n); symbol N in rule RULE. */ uniqstr symbol_list_n_type_name_get (symbol_list *l, location loc, int n); -/** The item \c n in symbol list \c l is \c used. */ -void symbol_list_n_used_set (symbol_list *l, int n, bool used); - -/** Set the \c \%destructor for \c node as \c destructor at \c loc. */ -void symbol_list_destructor_set (symbol_list *node, const char *destructor, +/** 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 printer at \c loc. */ -void symbol_list_printer_set (symbol_list *node, const char *printer, +/** 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_ */