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LibCrypto+LibJS: Remove the create_from methods from BigInteger

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Instead we just use a specific constructor. With this set of
constructors using curly braces for constructing is highly recommended.
As then it will not do too many implicit conversions which could lead to
unexpected loss of data or calling the much slower double constructor.

Also to ensure we don't feed (Un)SignedBigInteger infinities we throw
RangeError earlier for Durations.
This commit is contained in:
davidot 2022-08-26 00:49:50 +02:00 • committed by Linus Groh
parent 528891bf69
commit 791855deab
19 changed files with 77 additions and 82 deletions
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15
Userland/Libraries/LibJS/Runtime/Temporal/Instant.cpp
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@ -122,7 +122,7 @@ ThrowCompletionOr<BigInt*> parse_temporal_instant(VM& vm, String const& iso_stri
auto offset_nanoseconds = TRY(parse_time_zone_offset_string(vm, *offset_string));
// 7. Let result be utc - ℤ(offsetNanoseconds).
auto* result_ns = js_bigint(vm, utc->big_integer().minus(Crypto::SignedBigInteger::create_from(offset_nanoseconds)));
auto* result_ns = js_bigint(vm, utc->big_integer().minus(Crypto::SignedBigInteger { offset_nanoseconds }));
// 8. If ! IsValidEpochNanoseconds(result) is false, then
if (!is_valid_epoch_nanoseconds(*result_ns)) {
@ -155,15 +155,14 @@ ThrowCompletionOr<BigInt*> add_instant(VM& vm, BigInt const& epoch_nanoseconds,
VERIFY(hours == trunc(hours) && minutes == trunc(minutes) && seconds == trunc(seconds) && milliseconds == trunc(milliseconds) && microseconds == trunc(microseconds) && nanoseconds == trunc(nanoseconds));
// 1. Let result be epochNanoseconds + ℤ(nanoseconds) + ℤ(microseconds) × 1000ℤ + ℤ(milliseconds) × 10^6ℤ + ℤ(seconds) × 10^9ℤ + ℤ(minutes) × 60ℤ × 10^9ℤ + ℤ(hours) × 3600ℤ × 10^9ℤ.
// FIXME: Pretty sure i64's are not sufficient for the extreme cases.
auto* result = js_bigint(vm,
epoch_nanoseconds.big_integer()
.plus(Crypto::SignedBigInteger::create_from((i64)nanoseconds))
.plus(Crypto::SignedBigInteger::create_from((i64)microseconds).multiplied_by(Crypto::SignedBigInteger { 1'000 }))
.plus(Crypto::SignedBigInteger::create_from((i64)milliseconds).multiplied_by(Crypto::SignedBigInteger { 1'000'000 }))
.plus(Crypto::SignedBigInteger::create_from((i64)seconds).multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 }))
.plus(Crypto::SignedBigInteger::create_from((i64)minutes).multiplied_by(Crypto::SignedBigInteger { 60 }).multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 }))
.plus(Crypto::SignedBigInteger::create_from((i64)hours).multiplied_by(Crypto::SignedBigInteger { 3600 }).multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 })));
.plus(Crypto::SignedBigInteger { nanoseconds })
.plus(Crypto::SignedBigInteger { microseconds }.multiplied_by(Crypto::SignedBigInteger { 1'000 }))
.plus(Crypto::SignedBigInteger { milliseconds }.multiplied_by(Crypto::SignedBigInteger { 1'000'000 }))
.plus(Crypto::SignedBigInteger { seconds }.multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 }))
.plus(Crypto::SignedBigInteger { minutes }.multiplied_by(Crypto::SignedBigInteger { 60 }).multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 }))
.plus(Crypto::SignedBigInteger { hours }.multiplied_by(Crypto::SignedBigInteger { 3600 }).multiplied_by(Crypto::SignedBigInteger { 1'000'000'000 })));
// 2. If ! IsValidEpochNanoseconds(result) is false, throw a RangeError exception.
if (!is_valid_epoch_nanoseconds(*result))