X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/db06f0ce72e6a871d57d9e3f0d6c510728fe3e21..6130b75585cad5f4bb2ee78875a0bfe109b2a3e3:/src/symtab.h
diff --git a/src/symtab.h b/src/symtab.h
index 9d5604af..0e521626 100644
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -1,24 +1,22 @@
/* 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 . */
/**
* \file symtab.h
@@ -30,6 +28,7 @@
# include "assoc.h"
# include "location.h"
+# include "scan-code.h"
# include "uniqstr.h"
/*----------.
@@ -72,25 +71,13 @@ struct symbol
example, if symbol::destructor = NULL, a default \c \%destructor
or a per-type \c \%destructor might be appropriate, and
\c symbol_destructor_get will compute the correct one. */
- const char *destructor;
-
- /** The location of \c symbol::destructor.
-
- Access this field only through symbol's interface functions.
- \sa symbol::destructor */
- location destructor_location;
+ code_props destructor;
/** Any \c \%printer declared specifically for this symbol.
Access this field only through symbol's interface functions.
\sa symbol::destructor */
- const char *printer;
-
- /** The location of \c symbol::printer.
-
- Access this field only through symbol's interface functions.
- \sa symbol::destructor */
- location printer_location;
+ code_props printer;
symbol_number number;
location prec_location;
@@ -118,9 +105,6 @@ struct symbol
/* 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);
@@ -132,9 +116,23 @@ symbol *symbol_get (const char *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);
@@ -143,27 +141,22 @@ 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);
-/** Set the \c destructor associated with \c sym. */
-void symbol_destructor_set (symbol *sym, const char *destructor, location loc);
-
-/** Get the computed \c \%destructor for \c sym, or \c NULL if none. */
-const char *symbol_destructor_get (symbol *sym);
+/** Get the \c class string associated with \c sym. */
+const char *symbol_class_get_string (symbol *sym);
-/** Get the grammar location of the computed \c \%destructor for \c sym.
+/** Set the \c destructor associated with \c sym. */
+void symbol_destructor_set (symbol *sym, code_props const *destructor);
- \pre symbol_destructor_get (sym) != NULL */
-location symbol_destructor_location_get (symbol *sym);
+/** 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 const *symbol_destructor_get (symbol const *sym);
/** Set the \c printer associated with \c sym. */
-void symbol_printer_set (symbol *sym, const char *printer, location loc);
-
-/** Get the computed \c \%printer for \c sym, or \c NULL if none. */
-const char *symbol_printer_get (symbol *sym);
-
-/** Get the grammar location of the computed \c \%printer for \c sym.
+void symbol_printer_set (symbol *sym, code_props const *printer);
- \pre symbol_printer_get (sym) != NULL */
-location symbol_printer_location_get (symbol *sym);
+/** 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 const *symbol_printer_get (symbol const *sym);
/* Set the \c precedence associated with \c sym.
@@ -179,6 +172,11 @@ void symbol_class_set (symbol *sym, symbol_class class, location loc,
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. */
@@ -209,14 +207,9 @@ typedef struct {
uniqstr tag;
/** Any \c %destructor declared for this semantic type. */
- const char *destructor;
- /** The location of \c semantic_type::destructor. */
- location destructor_location;
-
+ code_props destructor;
/** Any \c %printer declared for this semantic type. */
- const char *printer;
- /** The location of \c semantic_type::printer. */
- location printer_location;
+ code_props printer;
} semantic_type;
/** Fetch (or create) the semantic type associated to KEY. */
@@ -226,12 +219,12 @@ semantic_type *semantic_type_from_uniqstr (const uniqstr key);
semantic_type *semantic_type_get (const char *key);
/** Set the \c destructor associated with \c type. */
-void semantic_type_destructor_set (semantic_type *type, const char *destructor,
- location loc);
+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, const char *printer,
- location loc);
+void semantic_type_printer_set (semantic_type *type,
+ code_props const *printer);
/*----------------------------------.
| Symbol and semantic type tables. |
@@ -260,13 +253,13 @@ void symbols_pack (void);
`---------------------------------------*/
/** Set the default \c \%destructor for tagged values. */
-void default_tagged_destructor_set (const char *destructor, location loc);
+void default_tagged_destructor_set (code_props const *destructor);
/** Set the default \c \%destructor for tagless values. */
-void default_tagless_destructor_set (const char *destructor, location loc);
+void default_tagless_destructor_set (code_props const *destructor);
/** Set the default \c \%printer for tagged values. */
-void default_tagged_printer_set (const char *printer, location loc);
+void default_tagged_printer_set (code_props const *printer);
/** Set the default \c \%printer for tagless values. */
-void default_tagless_printer_set (const char *printer, location loc);
+void default_tagless_printer_set (code_props const *printer);
#endif /* !SYMTAB_H_ */