Files
Toy/source/literal.h

112 lines
3.5 KiB
C

#pragma once
#include "common.h"
#include <string.h>
typedef enum {
LITERAL_NULL,
LITERAL_BOOLEAN,
LITERAL_INTEGER,
LITERAL_FLOAT,
LITERAL_STRING,
LITERAL_ARRAY,
LITERAL_DICTIONARY,
// LITERAL_FUNCTION,
LITERAL_IDENTIFIER,
// LITERAL_TYPE,
} LiteralType;
typedef struct {
LiteralType type;
union {
bool boolean;
int integer;
float number;
struct {
char* ptr;
int length;
} string;
void* array;
void* dictionary;
// void* function;
struct { //for variable names
char* ptr;
int length;
} identifier;
//TODO: type
} as;
} Literal;
#define IS_NULL(value) ((value).type == LITERAL_NULL)
#define IS_BOOLEAN(value) ((value).type == LITERAL_BOOLEAN)
#define IS_INTEGER(value) ((value).type == LITERAL_INTEGER)
#define IS_FLOAT(value) ((value).type == LITERAL_FLOAT)
#define IS_STRING(value) ((value).type == LITERAL_STRING)
#define IS_ARRAY(value) ((value).type == LITERAL_ARRAY)
#define IS_DICTIONARY(value) ((value).type == LITERAL_DICTIONARY)
#define IS_FUNCTION(value) ((value).type == LITERAL_FUNCTION)
#define IS_IDENTIFIER(value) ((value).type == LITERAL_IDENTIFIER)
#define AS_BOOLEAN(value) ((value).as.boolean)
#define AS_INTEGER(value) ((value).as.integer)
#define AS_FLOAT(value) ((value).as.number)
#define AS_STRING(value) ((value).as.string.ptr)
#define AS_ARRAY(value) ((LiteralArray*)((value).as.array))
#define AS_DICTIONARY(value) ((LiteralDictionary*)((value).as.dictionary))
// #define AS_FUNCTION(value)
#define AS_IDENTIFIER(value) ((value).as.identifier.ptr)
#define TO_NULL_LITERAL ((Literal){LITERAL_NULL, { .integer = 0 }})
#define TO_BOOLEAN_LITERAL(value) ((Literal){LITERAL_BOOLEAN, { .boolean = value }})
#define TO_INTEGER_LITERAL(value) ((Literal){LITERAL_INTEGER, { .integer = value }})
#define TO_FLOAT_LITERAL(value) ((Literal){LITERAL_FLOAT, { .number = value }})
#define TO_STRING_LITERAL(value) _toStringLiteral(value)
#define TO_ARRAY_LITERAL(value) ((Literal){LITERAL_ARRAY, { .array = value }})
#define TO_DICTIONARY_LITERAL(value) ((Literal){LITERAL_DICTIONARY, { .dictionary = value }})
// #define TO_FUNCTION_LITERAL
#define TO_IDENTIFIER_LITERAL(value) _toIdentifierLiteral(value)
#define MASK(x) (1 >> (x))
#define TYPE_CONST 0
#define TYPE_BOOLEAN 1
#define TYPE_INTEGER 2
#define TYPE_FLOAT 3
#define TYPE_STRING 4
#define TYPE_ARRAY 5
#define TYPE_DICTIONARY 6
#define TYPE_FUNCTION 7
#define MASK_CONST (MASK(TYPE_CONST))
#define MASK_BOOLEAN (MASK(TYPE_BOOLEAN))
#define MASK_INTEGER (MASK(TYPE_INTEGER))
#define MASK_FLOAT (MASK(TYPE_FLOAT))
#define MASK_STRING (MASK(TYPE_STRING))
#define MASK_ARRAY (MASK(TYPE_ARRAY))
#define MASK_DICTIONARY (MASK(TYPE_DICTIONARY))
#define MASK_FUNCTION (MASK(TYPE_FUNCTION))
#define MASK_ANY (MASK_BOOLEAN|MASK_INTEGER|MASK_FLOAT|MASK_STRING|MASK_ARRAY|MASK_DICTIONARY|MASK_FUNCTION)
//utils
void printLiteral(Literal literal);
void printLiteralCustom(Literal literal, void (printFn)(const char*));
void freeLiteral(Literal literal);
#define IS_TRUTHY(x) _isTruthy(x)
#define STRLEN(lit) ((lit).as.string.length)
#define STRLEN_I(lit) ((lit).as.identifier.length)
#define TYPES(lit) ((lit).as.identifier.types)
//BUGFIX: macros are not functions
bool _isTruthy(Literal x);
Literal _toStringLiteral(char* str);
Literal _toIdentifierLiteral(char* str);
//utils
char* copyString(char* original, int length);
bool literalsAreEqual(Literal lhs, Literal rhs);
int hashLiteral(Literal lit);