/* Definitions for symtab.c and callers, part of Bison.
- Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2004, 2005, 2006
+ Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008
Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
- Bison is free software; you can redistribute it and/or modify
+ 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 2, or (at your option)
- any later version.
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bison is distributed in the hope that it will be useful,
+ 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 Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/**
* \file symtab.h
/* Undefined internal token number. */
#define NUMBER_UNDEFINED (-1)
-/** Print a symbol (for debugging). */
-void symbol_print (symbol *s, FILE *f);
-
/** Fetch (or create) the symbol associated to KEY. */
symbol *symbol_from_uniqstr (const uniqstr key, location loc);
Its name cannot conflict with the user's names. */
symbol *dummy_symbol_get (location loc);
+
+/*--------------------.
+| Methods on symbol. |
+`--------------------*/
+
+/** Print a symbol (for debugging). */
+void symbol_print (symbol *s, FILE *f);
+
/** Is this a dummy nonterminal? */
bool symbol_is_dummy (const symbol *sym);
+/** Return the name of the symbol that can be used as an identifier.
+ ** Consider the alias if needed.
+ ** Return 0 if there is none (e.g., the symbol is only defined as
+ ** a string). */
+uniqstr symbol_id_get (symbol const *sym);
+
/** Declare the new symbol \c sym. Make it an alias of \c symval. */
void symbol_make_alias (symbol *sym, symbol *symval, location loc);
Do nothing if passed 0 as \c type_name. */
void symbol_type_set (symbol *sym, uniqstr type_name, location loc);
+/** Get the \c class string associated with \c sym. */
+const char *symbol_class_get_string (symbol *sym);
+
/** Set the \c destructor associated with \c sym. */
-void symbol_destructor_set (symbol *sym, code_props destructor);
+void symbol_destructor_set (symbol *sym, code_props const *destructor);
/** Get the computed \c \%destructor for \c sym, which was initialized with
\c code_props_none_init if there's no \c \%destructor. */
-code_props symbol_destructor_get (symbol *sym);
+code_props const *symbol_destructor_get (symbol const *sym);
/** Set the \c printer associated with \c sym. */
-void symbol_printer_set (symbol *sym, code_props printer);
+void symbol_printer_set (symbol *sym, code_props const *printer);
/** Get the computed \c \%printer for \c sym, which was initialized with
\c code_props_none_init if there's no \c \%printer. */
-code_props symbol_printer_get (symbol *sym);
+code_props const *symbol_printer_get (symbol const *sym);
/* Set the \c precedence associated with \c sym.
void symbol_user_token_number_set (symbol *sym, int user_number, location loc);
+
+/*------------------.
+| Special symbols. |
+`------------------*/
+
/** The error token. */
extern symbol *errtoken;
/** The token for unknown tokens. */
`-----------------*/
/** A semantic type and its associated \c \%destructor and \c \%printer.
-
+
Access the fields of this struct only through the interface functions in
this file. \sa symbol::destructor */
-typedef struct semantic_type {
+typedef struct {
/** The key, name of the semantic type. */
uniqstr tag;
semantic_type *semantic_type_get (const char *key);
/** Set the \c destructor associated with \c type. */
-void semantic_type_destructor_set (semantic_type *type, code_props destructor);
+void semantic_type_destructor_set (semantic_type *type,
+ code_props const *destructor);
/** Set the \c printer associated with \c type. */
-void semantic_type_printer_set (semantic_type *type, code_props printer);
+void semantic_type_printer_set (semantic_type *type,
+ code_props const *printer);
/*----------------------------------.
| Symbol and semantic type tables. |
`---------------------------------------*/
/** Set the default \c \%destructor for tagged values. */
-void default_tagged_destructor_set (code_props destructor);
+void default_tagged_destructor_set (code_props const *destructor);
/** Set the default \c \%destructor for tagless values. */
-void default_tagless_destructor_set (code_props destructor);
+void default_tagless_destructor_set (code_props const *destructor);
/** Set the default \c \%printer for tagged values. */
-void default_tagged_printer_set (code_props printer);
+void default_tagged_printer_set (code_props const *printer);
/** Set the default \c \%printer for tagless values. */
-void default_tagless_printer_set (code_props printer);
+void default_tagless_printer_set (code_props const *printer);
#endif /* !SYMTAB_H_ */
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