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Code Issues 1 Releases Wiki Activity

Remove mutable operators on inttypes.

Browse Source 
Mutations break hash table invariants, are a rather
silly performance optimization for a language like Janet.
This commit is contained in:
Calvin Rose 2020-01-21 17:47:34 -06:00
parent 1ec2e08f21
commit 7c92c64730
2 changed files with 0 additions and 56 deletions
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53
src/core/inttypes.c
View File

@ -206,14 +206,6 @@ static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
*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) { \
@ -227,17 +219,6 @@ static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
} \
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) { \
@ -252,18 +233,6 @@ static Janet cfun_it_##type##_##name(int32_t argc, Janet *argv) { \
} \
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) { \
@ -330,17 +299,6 @@ static JanetMethod it_s64_methods[] = {
{"<<", 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}
};
@ -362,17 +320,6 @@ static JanetMethod it_u64_methods[] = {
{"<<", 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}
};

3
test/suite6.janet
View File

@ -72,9 +72,6 @@
"trap INT64_MIN / -1"
(:/ (int/s64 "-0x8000_0000_0000_0000") -1))
# in place operators
(assert (let [a (u64 1e10)] (:+! a 1000000 "1000000" "0xffff") (:= a 10002065535)) "in place operators")
# int64 typed arrays
(assert (let [t (tarray/new :int64 10)
b (i64 1000)]