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bldc/include/symrepr.h

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/*
Copyright 2018, 2021, 2022 Joel Svensson svenssonjoel@yahoo.se
2022 Benjamin Vedder
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 3 of the License, or
(at your option) any later version.
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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file symrepr.h
* symrepr.h implements the symbol table and symbol creation and lookup functions.
*
* The symbol table is implemented as a linked list in the arrays and symbols
* memory defined in lispbm_memory.h. So lbm_memory_init must be run before
* the symbol table is initialized and used.
*
*/
#ifndef SYMTAB_H_
#define SYMTAB_H_
#include <stdint.h>
#include <stdbool.h>
#include "lbm_types.h"
// Default and fixed symbol ids
#define SYM_NIL 0x0
#define SYM_QUOTE 0x1
#define SYM_TRUE 0x2
#define SYM_IF 0x3
#define SYM_LAMBDA 0x4
#define SYM_CLOSURE 0x5
#define SYM_LET 0x6
#define SYM_DEFINE 0x7
#define SYM_PROGN 0x8
#define SYM_READ 0x9
#define SYM_READ_PROGRAM 0xA
#define SYM_DONTCARE 0xB
#define SYM_MATCH 0xC
#define SYM_SEND 0xD
#define SYM_RECEIVE 0xE
#define SYM_MACRO 0xF
#define SYM_MACRO_EXPAND 0x10
#define SYM_CALLCC 0x11
#define SYM_CONT 0x12
#define SYM_SETVAR 0x13
// 0x20 - 0x2F are errors
#define SYM_RERROR 0x20 /* READ ERROR */
#define SYM_TERROR 0x21 /* TYPE ERROR */
#define SYM_EERROR 0x22 /* EVAL ERROR */
#define SYM_MERROR 0x23
#define SYM_NOT_FOUND 0x24
#define SYM_DIVZERO 0x25
#define SYM_FATAL_ERROR 0x26 /* Runtime system is corrupt */
#define SYM_STACK_ERROR 0x27
#define SYM_RECOVERED 0x28
#define TYPE_CLASSIFIER_STARTS 0x30
#define SYM_ARRAY_TYPE 0x30
#define SYM_RAW_I_TYPE 0x31
#define SYM_RAW_U_TYPE 0x32
#define SYM_RAW_F_TYPE 0x33
#define SYM_IND_I_TYPE 0x34
#define SYM_IND_U_TYPE 0x35
#define SYM_IND_F_TYPE 0x36
#define SYM_STREAM_TYPE 0x37
#define SYM_BYTECODE_TYPE 0x38
#define TYPE_CLASSIFIER_ENDS 0x38
#define SYM_NONSENSE 0x39
#define SYM_NO_MATCH 0x3A
#define SYM_MATCH_ANY 0x3B
#define SYM_MATCH_I 0x3C
#define SYM_MATCH_U 0x3D
#define SYM_MATCH_U32 0x3E
#define SYM_MATCH_I32 0x3F
#define SYM_MATCH_FLOAT 0x40
#define SYM_MATCH_CONS 0x41
// Type identifying symbols
#define SYM_TYPE_LIST 0x50
#define SYM_TYPE_I 0x51
#define SYM_TYPE_U 0x52
#define SYM_TYPE_FLOAT 0x53
#define SYM_TYPE_I32 0x54
#define SYM_TYPE_U32 0x55
#define SYM_TYPE_DOUBLE 0x56
#define SYM_TYPE_I64 0x57
#define SYM_TYPE_U64 0x58
#define SYM_TYPE_ARRAY 0x59
#define SYM_TYPE_SYMBOL 0x5A
#define SYM_TYPE_CHAR 0x5B
#define SYM_TYPE_BYTE 0x5C
#define SYM_TYPE_REF 0x5D
#define SYM_TYPE_STREAM 0x5E
//Relevant for the tokenizer
#define SYM_OPENPAR 0x70
#define SYM_CLOSEPAR 0x71
#define SYM_BACKQUOTE 0x72
#define SYM_COMMA 0x73
#define SYM_COMMAAT 0x74
#define SYM_TOKENIZER_DONE 0x75
#define SYM_DOT 0x76
#define SYM_QUOTE_IT 0x77
// Fundamental Operations
#define FUNDAMENTALS_START 0x100
#define SYM_ADD 0x100
#define SYM_SUB 0x101
#define SYM_MUL 0x102
#define SYM_DIV 0x103
#define SYM_MOD 0x104
#define SYM_EQ 0x105
#define SYM_NUMEQ 0x106
#define SYM_LT 0x107
#define SYM_GT 0x108
#define SYM_LEQ 0x109
#define SYM_GEQ 0x10A
#define SYM_EVAL 0x10B
#define SYM_EVAL_PROGRAM 0x10C
#define SYM_PERFORM_GC 0x10D
#define SYM_AND 0x110
#define SYM_OR 0x111
#define SYM_NOT 0x112
#define SYM_YIELD 0x113
#define SYM_WAIT 0x114
#define SYM_SPAWN 0x115
#define SYM_CONS 0x120
#define SYM_CAR 0x121
#define SYM_CDR 0x122
#define SYM_LIST 0x123
#define SYM_APPEND 0x124
#define SYM_ARRAY_READ 0x130
#define SYM_ARRAY_WRITE 0x131
#define SYM_ARRAY_CREATE 0x132
#define SYM_ARRAY_SIZE 0x133
#define SYM_SYMBOL_TO_STRING 0x140
#define SYM_STRING_TO_SYMBOL 0x141
#define SYM_SYMBOL_TO_UINT 0x142
#define SYM_UINT_TO_SYMBOL 0x143
#define SYM_SET_CAR 0x145
#define SYM_SET_CDR 0x146
#define SYM_SET_IX 0x147
#define SYM_ASSOC 0x148
#define SYM_ACONS 0x149
#define SYM_SET_ASSOC 0x14A
#define SYM_IS_FUNDAMENTAL 0x150
#define SYM_IX 0x151
#define SYM_ENCODE_I32 0x152
#define SYM_ENCODE_U32 0x153
#define SYM_ENCODE_FLOAT 0x154
#define SYM_DECODE 0x155
#define SYM_TO_I 0x160
#define SYM_TO_I32 0x161
#define SYM_TO_U 0x162
#define SYM_TO_U32 0x163
#define SYM_TO_FLOAT 0x164
#define SYM_TO_I64 0x165
#define SYM_TO_U64 0x166
#define SYM_TO_DOUBLE 0x167
#define SYM_TO_BYTE 0x168
//#define SYM_STREAM_GET 0x160
//#define SYM_STREAM_MORE 0x161
//#define SYM_STREAM_PEEK 0x162
//#define SYM_STREAM_DROP 0x163
//#define SYM_STREAM_PUT 0x164
#define SYM_SHL 0x170
#define SYM_SHR 0x171
#define SYM_BITWISE_AND 0x172
#define SYM_BITWISE_OR 0x173
#define SYM_BITWISE_XOR 0x174
#define SYM_BITWISE_NOT 0x175
#define SYM_TYPE_OF 0x200
#define FUNDAMENTALS_END 0x200
#define SPECIAL_SYMBOLS_START 0
#define SPECIAL_SYMBOLS_END 0xFFFF
#define EXTENSION_SYMBOLS_START 0x10000
#define EXTENSION_SYMBOLS_END 0x1FFFF
#define VARIABLE_SYMBOLS_START 0x20000
#define VARIABLE_SYMBOLS_END 0x2FFFF
#define RUNTIME_SYMBOLS_START 0x30000
#define MAX_SYMBOL_VALUE 0x0FFFFFFF
typedef void (*symrepr_name_iterator_fun)(const char *);
/** Initialize the symbol table.
*
* \return 1
*/
extern int lbm_symrepr_init(void);
/** Iterate over all symbol names as strings
*
* \param symrepr_name_iterator_fun function taking a string
*/
extern void lbm_symrepr_name_iterator(symrepr_name_iterator_fun f);
/** Add a symbol to the symbol table. The symbol name string is copied to arrays and symbols memory.
*
* \param name String representation of the symbol.
* \param id Resulting id is returned through this argument.
* \return 1 for success and 0 for failure.
*/
extern int lbm_add_symbol(char *name, lbm_uint *id);
/** Add a variable-symbol to the symbol table. The symbol name string is copied to arrays and symbols memory.
*
* \param name String representation of the symbol.
* \param id Resulting id is returned through this argument.
* \return 1 for success and 0 for failure.
*/
extern int lbm_add_variable_symbol(char *name, lbm_uint* id);
/** Add a symbol to the symbol table. The name is assumed to be a statically allocated string.
*
* \param name Statically allocated name string.
* \param id Resulting id is returned through this argument.
* \return 1 for success and 0 for failure.
*/
extern int lbm_add_symbol_const(char *name, lbm_uint *id);
/** Add an extension symbol to the symbol table.
* The name is assumed to be statically allocated.
*
* \param name Statically allocated name string.
* \param id Resulting id is returned through this argument.
* \return 1 for success and 0 for failure.
*/
extern int lbm_add_extension_symbol_const(char *name, lbm_uint* id);
/** Look up an id from the symbol table given a name.
*
* \param name Name string to look up.
* \param id Resulting id is returned through this argument.
* \return 1 on success (name was found) and 0 for failure.
*/
extern int lbm_get_symbol_by_name(char *name, lbm_uint *id);
/** Look up a symbol name from the symbol table given an id.
*
* \param id The id to look up in the symbol table.
* \return pointer to the name string if success otherwise NULL.
*/
extern const char* lbm_get_name_by_symbol(lbm_uint id);
extern int lbm_get_num_variables(void);
/**
*
* \return The amount of space occupied by the symbol table in bytes.
*/
extern lbm_uint lbm_get_symbol_table_size(void);
#endif
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