mirrors
/
janet
mirror of https://github.com/janet-lang/janet
1
0
Fork 0
Code Issues 1 Releases Wiki Activity
janet/src/core/inttypes.c

412 lines
12 KiB
C
Raw Blame History

/*
* Copyright (c) 2019 Calvin Rose & contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <errno.h>
#include <stdlib.h>
#include <limits.h>
#include <inttypes.h>
#include <math.h>
#ifndef JANET_AMALG
#include <janet.h>
#include "util.h"
#endif
/* Conditional compilation */
#ifdef JANET_INT_TYPES
#define MAX_INT_IN_DBL 9007199254740992ULL /* 2^53 */
static int it_s64_get(void *p, Janet key, Janet *out);
static int it_u64_get(void *p, Janet key, Janet *out);
static int32_t janet_int64_hash(void *p1, size_t size) {
(void) size;
int32_t *words = p1;
return words[0] ^ words[1];
}
static int janet_int64_compare(void *p1, void *p2) {
int64_t x = *((int64_t *)p1);
int64_t y = *((int64_t *)p2);
return x == y ? 0 : x < y ? -1 : 1;
}
static int janet_uint64_compare(void *p1, void *p2) {
uint64_t x = *((uint64_t *)p1);
uint64_t y = *((uint64_t *)p2);
return x == y ? 0 : x < y ? -1 : 1;
}
static void int64_marshal(void *p, JanetMarshalContext *ctx) {
janet_marshal_abstract(ctx, p);
janet_marshal_int64(ctx, *((int64_t *)p));
}
static void *int64_unmarshal(JanetMarshalContext *ctx) {
int64_t *p = janet_unmarshal_abstract(ctx, sizeof(int64_t));
p[0] = janet_unmarshal_int64(ctx);
return p;
}
static void it_s64_tostring(void *p, JanetBuffer *buffer) {
char str[32];
sprintf(str, "%" PRId64, *((int64_t *)p));
janet_buffer_push_cstring(buffer, str);
}
static void it_u64_tostring(void *p, JanetBuffer *buffer) {
char str[32];
sprintf(str, "%" PRIu64, *((uint64_t *)p));
janet_buffer_push_cstring(buffer, str);
}
static const JanetAbstractType it_s64_type = {
"core/s64",
NULL,
NULL,
it_s64_get,
NULL,
int64_marshal,
int64_unmarshal,
it_s64_tostring,
janet_int64_compare,
janet_int64_hash
};
static const JanetAbstractType it_u64_type = {
"core/u64",
NULL,
NULL,
it_u64_get,
NULL,
int64_marshal,
int64_unmarshal,
it_u64_tostring,
janet_uint64_compare,
janet_int64_hash
};
int64_t janet_unwrap_s64(Janet x) {
switch (janet_type(x)) {
default:
break;
case JANET_NUMBER : {
double dbl = janet_unwrap_number(x);
if (fabs(dbl) <= MAX_INT_IN_DBL)
return (int64_t)dbl;
break;
}
case JANET_STRING: {
int64_t value;
const uint8_t *str = janet_unwrap_string(x);
if (janet_scan_int64(str, janet_string_length(str), &value))
return value;
break;
}
case JANET_ABSTRACT: {
void *abst = janet_unwrap_abstract(x);
if (janet_abstract_type(abst) == &it_s64_type ||
(janet_abstract_type(abst) == &it_u64_type))
return *(int64_t *)abst;
break;
}
}
janet_panic("bad s64 initializer");
return 0;
}
uint64_t janet_unwrap_u64(Janet x) {
switch (janet_type(x)) {
default:
break;
case JANET_NUMBER : {
double dbl = janet_unwrap_number(x);
if ((dbl >= 0) && (dbl <= MAX_INT_IN_DBL))
return (uint64_t)dbl;
break;
}
case JANET_STRING: {
uint64_t value;
const uint8_t *str = janet_unwrap_string(x);
if (janet_scan_uint64(str, janet_string_length(str), &value))
return value;
break;
}
case JANET_ABSTRACT: {
void *abst = janet_unwrap_abstract(x);
if (janet_abstract_type(abst) == &it_s64_type ||
(janet_abstract_type(abst) == &it_u64_type))
return *(uint64_t *)abst;
break;
}
}
janet_panic("bad u64 initializer");
return 0;
}
JanetIntType janet_is_int(Janet x) {
if (!janet_checktype(x, JANET_ABSTRACT)) return JANET_INT_NONE;
const JanetAbstractType *at = janet_abstract_type(janet_unwrap_abstract(x));
return (at == &it_s64_type) ? JANET_INT_S64 :
((at == &it_u64_type) ? JANET_INT_U64 :
JANET_INT_NONE);
}
Janet janet_wrap_s64(int64_t x) {
int64_t *box = janet_abstract(&it_s64_type, sizeof(int64_t));
*box = (int64_t)x;
return janet_wrap_abstract(box);
}
Janet janet_wrap_u64(uint64_t x) {
uint64_t *box = janet_abstract(&it_u64_type, sizeof(uint64_t));
*box = (uint64_t)x;
return janet_wrap_abstract(box);
}
static Janet cfun_it_s64_new(int32_t argc, Janet *argv) {
janet_fixarity(argc, 1);
return janet_wrap_s64(janet_unwrap_s64(argv[0]));
}
static Janet cfun_it_u64_new(int32_t argc, Janet *argv) {
janet_fixarity(argc, 1);
return janet_wrap_u64(janet_unwrap_u64(argv[0]));
}
#define OPMETHOD(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_abstract(&it_##type##_type, sizeof(T)); \
*box = janet_unwrap_##type(argv[0]); \
for (int i = 1; i < argc; i++) \
*box oper##= janet_unwrap_##type(argv[i]); \
return janet_wrap_abstract(box); \
} \
\
static Janet cfun_it_##type##_##name##_mut(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_getabstract(argv,0,&it_##type##_type); \
for (int i = 1; i < argc; i++) \
*box oper##= janet_unwrap_##type(argv[i]); \
return janet_wrap_abstract(box); \
}
#define DIVMETHOD(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_abstract(&it_##type##_type, sizeof(T)); \
*box = janet_unwrap_##type(argv[0]); \
for (int i = 1; i < argc; i++) { \
T value = janet_unwrap_##type(argv[i]); \
if (value == 0) janet_panic("division by zero"); \
*box oper##= value; \
} \
return janet_wrap_abstract(box); \
} \
\
static Janet cfun_it_##type##_##name##_mut(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_getabstract(argv,0,&it_##type##_type); \
for (int i = 1; i < argc; i++) { \
T value = janet_unwrap_##type(argv[i]); \
if (value == 0) janet_panic("division by zero"); \
*box oper##= value; \
} \
return janet_wrap_abstract(box); \
}
#define DIVMETHOD_SIGNED(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_abstract(&it_##type##_type, sizeof(T)); \
*box = janet_unwrap_##type(argv[0]); \
for (int i = 1; i < argc; i++) { \
T value = janet_unwrap_##type(argv[i]); \
if (value == 0) janet_panic("division by zero"); \
if ((value == -1) && (*box == INT64_MIN)) janet_panic("INT64_MIN divided by -1"); \
*box oper##= value; \
} \
return janet_wrap_abstract(box); \
} \
\
static Janet cfun_it_##type##_##name##_mut(int32_t argc, Janet *argv) { \
janet_arity(argc, 2, -1); \
T *box = janet_getabstract(argv,0,&it_##type##_type); \
for (int i = 1; i < argc; i++) { \
T value = janet_unwrap_##type(argv[i]); \
if (value == 0) janet_panic("division by zero"); \
if ((value == -1) && (*box == INT64_MIN)) janet_panic("INT64_MIN divided by -1"); \
*box oper##= value; \
} \
return janet_wrap_abstract(box); \
}
#define COMPMETHOD(T, type, name, oper) \
static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
janet_fixarity(argc, 2); \
T v1 = janet_unwrap_##type(argv[0]); \
T v2 = janet_unwrap_##type(argv[1]); \
return janet_wrap_boolean(v1 oper v2); \
}
OPMETHOD(int64_t, s64, add, +)
OPMETHOD(int64_t, s64, sub, -)
OPMETHOD(int64_t, s64, mul, *)
DIVMETHOD_SIGNED(int64_t, s64, div, /)
DIVMETHOD_SIGNED(int64_t, s64, mod, %)
OPMETHOD(int64_t, s64, and, &)
OPMETHOD(int64_t, s64, or, |)
OPMETHOD(int64_t, s64, xor, ^)
OPMETHOD(int64_t, s64, lshift, <<)
OPMETHOD(int64_t, s64, rshift, >>)
COMPMETHOD(int64_t, s64, lt, <)
COMPMETHOD(int64_t, s64, gt, >)
COMPMETHOD(int64_t, s64, le, <=)
COMPMETHOD(int64_t, s64, ge, >=)
COMPMETHOD(int64_t, s64, eq, ==)
COMPMETHOD(int64_t, s64, ne, !=)
OPMETHOD(uint64_t, u64, add, +)
OPMETHOD(uint64_t, u64, sub, -)
OPMETHOD(uint64_t, u64, mul, *)
DIVMETHOD(uint64_t, u64, div, /)
DIVMETHOD(uint64_t, u64, mod, %)
OPMETHOD(uint64_t, u64, and, &)
OPMETHOD(uint64_t, u64, or, |)
OPMETHOD(uint64_t, u64, xor, ^)
OPMETHOD(uint64_t, u64, lshift, <<)
OPMETHOD(uint64_t, u64, rshift, >>)
COMPMETHOD(uint64_t, u64, lt, <)
COMPMETHOD(uint64_t, u64, gt, >)
COMPMETHOD(uint64_t, u64, le, <=)
COMPMETHOD(uint64_t, u64, ge, >=)
COMPMETHOD(uint64_t, u64, eq, ==)
COMPMETHOD(uint64_t, u64, ne, !=)
#undef OPMETHOD
#undef DIVMETHOD
#undef DIVMETHOD_SIGNED
#undef COMPMETHOD
static JanetMethod it_s64_methods[] = {
{"+", cfun_it_s64_add},
{"-", cfun_it_s64_sub},
{"*", cfun_it_s64_mul},
{"/", cfun_it_s64_div},
{"%", cfun_it_s64_mod},
{"<", cfun_it_s64_lt},
{">", cfun_it_s64_gt},
{"<=", cfun_it_s64_le},
{">=", cfun_it_s64_ge},
{"=", cfun_it_s64_eq},
{"!=", cfun_it_s64_ne},
{"&", cfun_it_s64_and},
{"|", cfun_it_s64_or},
{"^", cfun_it_s64_xor},
{"<<", cfun_it_s64_lshift},
{">>", cfun_it_s64_rshift},
{"+!", cfun_it_s64_add_mut},
{"-!", cfun_it_s64_sub_mut},
{"*!", cfun_it_s64_mul_mut},
{"/!", cfun_it_s64_div_mut},
{"%!", cfun_it_s64_mod_mut},
{"&!", cfun_it_s64_and_mut},
{"|!", cfun_it_s64_or_mut},
{"^!", cfun_it_s64_xor_mut},
{"<<!", cfun_it_s64_lshift_mut},
{">>!", cfun_it_s64_rshift_mut},
{NULL, NULL}
};
static JanetMethod it_u64_methods[] = {
{"+", cfun_it_u64_add},
{"-", cfun_it_u64_sub},
{"*", cfun_it_u64_mul},
{"/", cfun_it_u64_div},
{"%", cfun_it_u64_mod},
{"<", cfun_it_u64_lt},
{">", cfun_it_u64_gt},
{"<=", cfun_it_u64_le},
{">=", cfun_it_u64_ge},
{"=", cfun_it_u64_eq},
{"!=", cfun_it_u64_ne},
{"&", cfun_it_u64_and},
{"|", cfun_it_u64_or},
{"^", cfun_it_u64_xor},
{"<<", cfun_it_u64_lshift},
{">>", cfun_it_u64_rshift},
{"+!", cfun_it_u64_add_mut},
{"-!", cfun_it_u64_sub_mut},
{"*!", cfun_it_u64_mul_mut},
{"/!", cfun_it_u64_div_mut},
{"%!", cfun_it_u64_mod_mut},
{"&!", cfun_it_u64_and_mut},
{"|!", cfun_it_u64_or_mut},
{"^!", cfun_it_u64_xor_mut},
{"<<!", cfun_it_u64_lshift_mut},
{">>!", cfun_it_u64_rshift_mut},
{NULL, NULL}
};
static int it_s64_get(void *p, Janet key, Janet *out) {
(void) p;
if (!janet_checktype(key, JANET_KEYWORD))
return 0;
return janet_getmethod(janet_unwrap_keyword(key), it_s64_methods, out);
}
static int it_u64_get(void *p, Janet key, Janet *out) {
(void) p;
if (!janet_checktype(key, JANET_KEYWORD))
return 0;
return janet_getmethod(janet_unwrap_keyword(key), it_u64_methods, out);
}
static const JanetReg it_cfuns[] = {
{
"int/s64", cfun_it_s64_new,
JDOC("(int/s64 value)\n\n"
"Create a boxed signed 64 bit integer from a string value.")
},
{
"int/u64", cfun_it_u64_new,
JDOC("(int/u64 value)\n\n"
"Create a boxed unsigned 64 bit integer from a string value.")
},
{NULL, NULL, NULL}
};
/* Module entry point */
void janet_lib_inttypes(JanetTable *env) {
janet_core_cfuns(env, NULL, it_cfuns);
janet_register_abstract_type(&it_s64_type);
janet_register_abstract_type(&it_u64_type);
}
#endif
Reference in New Issue View Git Blame Copy Permalink