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/*
* *****************************************************************************
*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2018-2020 Gavin D. Howard and contributors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* *****************************************************************************
*
* Definitions for bc's parser.
*
*/
#ifndef BC_PARSE_H
#define BC_PARSE_H
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <status.h>
#include <vector.h>
#include <lex.h>
#include <lang.h>
#define BC_PARSE_REL (UINTMAX_C(1)<<0)
#define BC_PARSE_PRINT (UINTMAX_C(1)<<1)
#define BC_PARSE_NOCALL (UINTMAX_C(1)<<2)
#define BC_PARSE_NOREAD (UINTMAX_C(1)<<3)
#define BC_PARSE_ARRAY (UINTMAX_C(1)<<4)
#define BC_PARSE_NEEDVAL (UINTMAX_C(1)<<5)
#if BC_ENABLED
#define BC_PARSE_CAN_PARSE(p) \
((p).l.t != BC_LEX_EOF && (p).l.t != BC_LEX_KW_DEFINE)
#else // BC_ENABLED
#define BC_PARSE_CAN_PARSE(p) ((p).l.t != BC_LEX_EOF)
#endif // BC_ENABLED
#define bc_parse_push(p, i) (bc_vec_pushByte(&(p)->func->code, (uchar) (i)))
#define bc_parse_pushIndex(p, idx) (bc_vec_pushIndex(&(p)->func->code, (idx)))
#define bc_parse_err(p, e) (bc_vm_handleError((e), (p)->l.line))
#define bc_parse_verr(p, e, ...) \
(bc_vm_handleError((e), (p)->l.line, __VA_ARGS__))
typedef struct BcParseNext {
uchar len;
uchar tokens[4];
} BcParseNext;
#define BC_PARSE_NEXT_TOKENS(...) .tokens = { __VA_ARGS__ }
#define BC_PARSE_NEXT(a, ...) \
{ .len = (uchar) (a), BC_PARSE_NEXT_TOKENS(__VA_ARGS__) }
struct BcParse;
struct BcProgram;
typedef void (*BcParseParse)(struct BcParse*);
typedef void (*BcParseExpr)(struct BcParse*, uint8_t);
typedef struct BcParse {
BcLex l;
#if BC_ENABLED
BcVec flags;
BcVec exits;
BcVec conds;
BcVec ops;
BcVec buf;
#endif // BC_ENABLED
struct BcProgram *prog;
BcFunc *func;
size_t fidx;
bool auto_part;
} BcParse;
void bc_parse_init(BcParse *p, struct BcProgram *prog, size_t func);
void bc_parse_free(BcParse *p);
void bc_parse_reset(BcParse *p);
void bc_parse_addString(BcParse *p);
void bc_parse_number(BcParse *p);
void bc_parse_updateFunc(BcParse *p, size_t fidx);
void bc_parse_pushName(const BcParse* p, char *name, bool var);
void bc_parse_text(BcParse *p, const char *text);
extern const char bc_parse_zero[2];
extern const char bc_parse_one[2];
#endif // BC_PARSE_H
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