X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/76290368d48b584808a120dfbd415be93aef04f6..4654b0c0a8a355e7a8fcdf51b1a5eb6c485126f1:/src/symtab.h diff --git a/src/symtab.h b/src/symtab.h index 1a4b7018..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 @@ -107,9 +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); @@ -121,9 +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); @@ -132,19 +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); +/** 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. @@ -160,6 +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. */ @@ -182,10 +199,10 @@ extern location startsymbol_location; `-----------------*/ /** 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; @@ -202,10 +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, 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. | @@ -234,13 +253,13 @@ void symbols_pack (void); `---------------------------------------*/ /** 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_ */