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gst-parse.h
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gst-parse.h
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/******************************** -*- C -*- ****************************
*
* GNU Smalltalk language grammar definition
*
***********************************************************************/
/***********************************************************************
*
* Copyright 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
* Written by Paolo Bonzini.
*
* This file is part of GNU Smalltalk.
*
* GNU Smalltalk 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.
*
* Linking GNU Smalltalk statically or dynamically with other modules is
* making a combined work based on GNU Smalltalk. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
*
* In addition, as a special exception, the Free Software Foundation
* give you permission to combine GNU Smalltalk with free software
* programs or libraries that are released under the GNU LGPL and with
* independent programs running under the GNU Smalltalk virtual machine.
*
* You may copy and distribute such a system following the terms of the
* GNU GPL for GNU Smalltalk and the licenses of the other code
* concerned, provided that you include the source code of that other
* code when and as the GNU GPL requires distribution of source code.
*
* Note that people who make modified versions of GNU Smalltalk are not
* obligated to grant this special exception for their modified
* versions; it is their choice whether to do so. The GNU General
* Public License gives permission to release a modified version without
* this exception; this exception also makes it possible to release a
* modified version which carries forward this exception.
*
* GNU Smalltalk 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
* GNU Smalltalk; see the file COPYING. If not, write to the Free Software
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
***********************************************************************/
#ifndef GST_PARSE_H
#define GST_PARSE_H
#define TOKEN_DEFS \
TOKEN_DEF (SCOPE_SEPARATOR, 261, "'.' or '::'", -1) \
TOKEN_DEF (ASSIGNMENT, 262, "'_' or ':='", -1) \
TOKEN_DEF (SHEBANG, 263, "'#!'", -1) \
TOKEN_DEF (IDENTIFIER, 264, "identifier", -1) \
TOKEN_DEF (BINOP, 265, "binary operator", -1) \
TOKEN_DEF (KEYWORD, 266, "keyword", -1) \
TOKEN_DEF (STRING_LITERAL, 267, "string literal", -1) \
TOKEN_DEF (SYMBOL_LITERAL, 268, "symbol literal", -1) \
TOKEN_DEF (INTEGER_LITERAL, 269, "integer literal", -1) \
TOKEN_DEF (LARGE_INTEGER_LITERAL, 270, "integer literal", 269) \
TOKEN_DEF (BYTE_LITERAL, 271, "small integer literal", 269) \
TOKEN_DEF (FLOATD_LITERAL, 272, "floating-point literal", -1) \
TOKEN_DEF (FLOATE_LITERAL, 273, "floating-point literal", 272) \
TOKEN_DEF (FLOATQ_LITERAL, 274, "floating-point literal", 272) \
TOKEN_DEF (SCALED_DECIMAL_LITERAL, 275, "decimal literal", -1) \
TOKEN_DEF (CHAR_LITERAL, 276, "character literal", -1) \
TOKEN_DEF (ERROR_RECOVERY, 277, "newline", -1)
#define FIRST_TOKEN (SCOPE_SEPARATOR)
#define NUM_TOKENS (CHAR_LITERAL - SCOPE_SEPARATOR + 1)
#define TOKEN_DEF(name, val, str, subsume) \
name = val,
enum yytokentype {
TOKEN_DEFS
FIRST_UNUSED_TOKEN
};
#undef TOKEN_DEF
enum parser_state {
PARSE_METHOD,
PARSE_METHOD_LIST,
PARSE_DOIT
};
typedef struct gst_lookahead {
int token;
YYSTYPE val;
YYLTYPE loc;
} gst_lookahead;
typedef struct gst_parser {
gst_lookahead la [4];
int la_size;
int la_first;
enum parser_state state;
pool_list linearized_pools;
OOP current_namespace;
OOP currentClass;
OOP currentCategory;
OOP lastMethodOOP;
jmp_buf recover;
} gst_parser;
/* This is necessary so that the grammar knows when it must switch to
compile mode */
extern gst_parser *_gst_current_parser
ATTRIBUTE_HIDDEN;
extern OOP _gst_get_current_namespace (void)
ATTRIBUTE_HIDDEN;
/* Sets the parser's notion of the class to compile methods into. */
extern void _gst_set_compilation_class (OOP class_oop)
ATTRIBUTE_HIDDEN;
/* Sets the parser's notion of the category to compile methods into. */
extern void _gst_set_compilation_category (OOP categoryOOP)
ATTRIBUTE_HIDDEN;
/* Resets the parser's compilation information. */
extern void _gst_reset_compilation_category (void)
ATTRIBUTE_HIDDEN;
/* Invoke the recursive descent parser. */
extern OOP _gst_parse_method (OOP currentClass,
OOP currentCategory)
ATTRIBUTE_HIDDEN;
extern void _gst_parse_chunks (OOP currentNamespace)
ATTRIBUTE_HIDDEN;
extern void _gst_print_tokens (gst_parser *p)
ATTRIBUTE_HIDDEN;
#endif