LibJS: Replace standalone js_bigint() with BigInt::create()

Three standalone Cell creation functions remain in the JS namespace:

- js_bigint()
- js_string()
- js_symbol()

All of them are leftovers from early iterations when LibJS still took
inspiration from JSC, which itself has jsString(). Nowadays, we pretty
much exclusively use static create() functions to construct types
allocated on the JS heap, and there's no reason to not do the same for
these.
Also change the return type from BigInt* to NonnullGCPtr<BigInt> while
we're here.

This is patch 1/3, replacement of js_string() and js_symbol() follow.

Tests/LibWasm/test-wasm.cpp

@@ -174,7 +174,7 @@ JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::get_export)
                 return m_machine.store().get(*v)->value().value().visit(
                     [&](auto const& value) -> JS::Value { return JS::Value(static_cast<double>(value)); },
                     [&](i32 value) { return JS::Value(static_cast<double>(value)); },
-                    [&](i64 value) -> JS::Value { return JS::js_bigint(vm, Crypto::SignedBigInteger { value }); },
+                    [&](i64 value) -> JS::Value { return JS::BigInt::create(vm, Crypto::SignedBigInteger { value }); },
                     [&](Wasm::Reference const& reference) -> JS::Value {
                         return reference.ref().visit(
                             [&](const Wasm::Reference::Null&) -> JS::Value { return JS::js_null(); },
@@ -253,7 +253,7 @@ JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::wasm_invoke)
     result.values().first().value().visit(
         [&](auto const& value) { return_value = JS::Value(static_cast<double>(value)); },
         [&](i32 value) { return_value = JS::Value(static_cast<double>(value)); },
-        [&](i64 value) { return_value = JS::Value(JS::js_bigint(vm, Crypto::SignedBigInteger { value })); },
+        [&](i64 value) { return_value = JS::Value(JS::BigInt::create(vm, Crypto::SignedBigInteger { value })); },
         [&](Wasm::Reference const& reference) {
             reference.ref().visit(
                 [&](const Wasm::Reference::Null&) { return_value = JS::js_null(); },

Userland/Libraries/LibJS/AST.cpp

@@ -2817,7 +2817,7 @@ Completion UpdateExpression::execute(Interpreter& interpreter) const
         else {
             // a. Assert: Type(oldValue) is BigInt.
             // b. Let newValue be BigInt::add(oldValue, 1ℤ).
-            new_value = js_bigint(interpreter.heap(), old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
+            new_value = BigInt::create(vm, old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
         }
         break;
     case UpdateOp::Decrement:
@@ -2830,7 +2830,7 @@ Completion UpdateExpression::execute(Interpreter& interpreter) const
         else {
             // a. Assert: Type(oldValue) is BigInt.
             // b. Let newValue be BigInt::subtract(oldValue, 1ℤ).
-            new_value = js_bigint(interpreter.heap(), old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
+            new_value = BigInt::create(vm, old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
         }
         break;
     default:
@@ -3483,19 +3483,20 @@ Completion NumericLiteral::execute(Interpreter& interpreter) const
 Completion BigIntLiteral::execute(Interpreter& interpreter) const
 {
     InterpreterNodeScope node_scope { interpreter, *this };
+    auto& vm = interpreter.vm();
 
     // 1. Return the NumericValue of NumericLiteral as defined in 12.8.3.
     Crypto::SignedBigInteger integer;
     if (m_value[0] == '0' && m_value.length() >= 3) {
         if (m_value[1] == 'x' || m_value[1] == 'X') {
-            return Value { js_bigint(interpreter.heap(), Crypto::SignedBigInteger::from_base(16, m_value.substring(2, m_value.length() - 3))) };
+            return Value { BigInt::create(vm, Crypto::SignedBigInteger::from_base(16, m_value.substring(2, m_value.length() - 3))) };
         } else if (m_value[1] == 'o' || m_value[1] == 'O') {
-            return Value { js_bigint(interpreter.heap(), Crypto::SignedBigInteger::from_base(8, m_value.substring(2, m_value.length() - 3))) };
+            return Value { BigInt::create(vm, Crypto::SignedBigInteger::from_base(8, m_value.substring(2, m_value.length() - 3))) };
         } else if (m_value[1] == 'b' || m_value[1] == 'B') {
-            return Value { js_bigint(interpreter.heap(), Crypto::SignedBigInteger::from_base(2, m_value.substring(2, m_value.length() - 3))) };
+            return Value { BigInt::create(vm, Crypto::SignedBigInteger::from_base(2, m_value.substring(2, m_value.length() - 3))) };
         }
     }
-    return Value { js_bigint(interpreter.heap(), Crypto::SignedBigInteger::from_base(10, m_value.substring(0, m_value.length() - 1))) };
+    return Value { BigInt::create(vm, Crypto::SignedBigInteger::from_base(10, m_value.substring(0, m_value.length() - 1))) };
 }
 
 // 13.2.3.1 Runtime Semantics: Evaluation, https://tc39.es/ecma262/#sec-literals-runtime-semantics-evaluation

Userland/Libraries/LibJS/Bytecode/Op.cpp

@@ -169,7 +169,8 @@ JS_ENUMERATE_COMMON_UNARY_OPS(JS_DEFINE_COMMON_UNARY_OP)
 
 ThrowCompletionOr<void> NewBigInt::execute_impl(Bytecode::Interpreter& interpreter) const
 {
-    interpreter.accumulator() = js_bigint(interpreter.vm().heap(), m_bigint);
+    auto& vm = interpreter.vm();
+    interpreter.accumulator() = BigInt::create(vm, m_bigint);
     return {};
 }
 
@@ -706,7 +707,7 @@ ThrowCompletionOr<void> Increment::execute_impl(Bytecode::Interpreter& interpret
     if (old_value.is_number())
         interpreter.accumulator() = Value(old_value.as_double() + 1);
     else
-        interpreter.accumulator() = js_bigint(vm, old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
+        interpreter.accumulator() = BigInt::create(vm, old_value.as_bigint().big_integer().plus(Crypto::SignedBigInteger { 1 }));
     return {};
 }
 
@@ -718,7 +719,7 @@ ThrowCompletionOr<void> Decrement::execute_impl(Bytecode::Interpreter& interpret
     if (old_value.is_number())
         interpreter.accumulator() = Value(old_value.as_double() - 1);
     else
-        interpreter.accumulator() = js_bigint(vm, old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
+        interpreter.accumulator() = BigInt::create(vm, old_value.as_bigint().big_integer().minus(Crypto::SignedBigInteger { 1 }));
     return {};
 }
 

Userland/Libraries/LibJS/Runtime/ArrayBuffer.h

@@ -111,10 +111,10 @@ static Value raw_bytes_to_numeric(VM& vm, ByteBuffer raw_value, bool is_little_e
     if constexpr (sizeof(UnderlyingBufferDataType) == 8) {
         if constexpr (IsSigned<UnderlyingBufferDataType>) {
             static_assert(IsSame<UnderlyingBufferDataType, i64>);
-            return js_bigint(vm, Crypto::SignedBigInteger { int_value });
+            return BigInt::create(vm, Crypto::SignedBigInteger { int_value });
         } else {
             static_assert(IsOneOf<UnderlyingBufferDataType, u64, double>);
-            return js_bigint(vm, Crypto::SignedBigInteger { Crypto::UnsignedBigInteger { int_value } });
+            return BigInt::create(vm, Crypto::SignedBigInteger { Crypto::UnsignedBigInteger { int_value } });
         }
     } else {
         return Value(int_value);

Userland/Libraries/LibJS/Runtime/BigInt.cpp

@@ -11,22 +11,17 @@
 
 namespace JS {
 
+NonnullGCPtr<BigInt> BigInt::create(VM& vm, Crypto::SignedBigInteger big_integer)
+{
+    return *vm.heap().allocate_without_realm<BigInt>(move(big_integer));
+}
+
 BigInt::BigInt(Crypto::SignedBigInteger big_integer)
     : m_big_integer(move(big_integer))
 {
     VERIFY(!m_big_integer.is_invalid());
 }
 
-BigInt* js_bigint(Heap& heap, Crypto::SignedBigInteger big_integer)
-{
-    return heap.allocate_without_realm<BigInt>(move(big_integer));
-}
-
-BigInt* js_bigint(VM& vm, Crypto::SignedBigInteger big_integer)
-{
-    return js_bigint(vm.heap(), move(big_integer));
-}
-
 // 21.2.1.1.1 NumberToBigInt ( number ), https://tc39.es/ecma262/#sec-numbertobigint
 ThrowCompletionOr<BigInt*> number_to_bigint(VM& vm, Value number)
 {
@@ -37,7 +32,7 @@ ThrowCompletionOr<BigInt*> number_to_bigint(VM& vm, Value number)
         return vm.throw_completion<RangeError>(ErrorType::BigIntFromNonIntegral);
 
     // 2. Return the BigInt value that represents ℝ(number).
-    return js_bigint(vm, Crypto::SignedBigInteger { number.as_double() });
+    return BigInt::create(vm, Crypto::SignedBigInteger { number.as_double() }).ptr();
 }
 
 }

Userland/Libraries/LibJS/Runtime/BigInt.h

@@ -16,6 +16,8 @@ class BigInt final : public Cell {
     JS_CELL(BigInt, Cell);
 
 public:
+    [[nodiscard]] static NonnullGCPtr<BigInt> create(VM&, Crypto::SignedBigInteger);
+
     virtual ~BigInt() override = default;
 
     Crypto::SignedBigInteger const& big_integer() const { return m_big_integer; }
@@ -27,8 +29,6 @@ private:
     Crypto::SignedBigInteger m_big_integer;
 };
 
-BigInt* js_bigint(Heap&, Crypto::SignedBigInteger);
-BigInt* js_bigint(VM&, Crypto::SignedBigInteger);
 ThrowCompletionOr<BigInt*> number_to_bigint(VM&, Value);
 
 }

Userland/Libraries/LibJS/Runtime/BigIntConstructor.cpp

@@ -80,11 +80,11 @@ JS_DEFINE_NATIVE_FUNCTION(BigIntConstructor::as_int_n)
     // NOTE: Some of the below conditionals are non-standard, but are to protect SignedBigInteger from
     //       allocating an absurd amount of memory if `bits - 1` overflows to NumericLimits<size_t>::max.
     if ((bits == 0) && (mod >= BIGINT_ONE))
-        return js_bigint(vm, mod.minus(bits_shift_left));
+        return BigInt::create(vm, mod.minus(bits_shift_left));
     if ((bits > 0) && (mod >= BIGINT_ONE.shift_left(bits - 1)))
-        return js_bigint(vm, mod.minus(bits_shift_left));
+        return BigInt::create(vm, mod.minus(bits_shift_left));
 
-    return js_bigint(vm, mod);
+    return BigInt::create(vm, mod);
 }
 
 // 21.2.2.2 BigInt.asUintN ( bits, bigint ), https://tc39.es/ecma262/#sec-bigint.asuintn
@@ -99,7 +99,7 @@ JS_DEFINE_NATIVE_FUNCTION(BigIntConstructor::as_uint_n)
     // 3. Return the BigInt value that represents ℝ(bigint) modulo 2bits.
     // FIXME: For large values of `bits`, this can likely be improved with a SignedBigInteger API to
     //        drop the most significant bits.
-    return js_bigint(vm, modulo(bigint->big_integer(), BIGINT_ONE.shift_left(bits)));
+    return BigInt::create(vm, modulo(bigint->big_integer(), BIGINT_ONE.shift_left(bits)));
 }
 
 }

Userland/Libraries/LibJS/Runtime/DatePrototype.cpp

@@ -1194,7 +1194,7 @@ JS_DEFINE_NATIVE_FUNCTION(DatePrototype::to_temporal_instant)
 
     // 2. Let ns be ? NumberToBigInt(t) × ℤ(10^6).
     auto* ns = TRY(number_to_bigint(vm, Value(t)));
-    ns = js_bigint(vm, ns->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000 }));
+    ns = BigInt::create(vm, ns->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000 }));
 
     // 3. Return ! CreateTemporalInstant(ns).
     return MUST(Temporal::create_temporal_instant(vm, *ns));

Userland/Libraries/LibJS/Runtime/Intl/MathematicalValue.cpp

@@ -308,7 +308,7 @@ Value MathematicalValue::to_value(VM& vm) const
             return Value(value);
         },
         [&](Crypto::SignedBigInteger const& value) {
-            return Value(js_bigint(vm, value));
+            return Value(BigInt::create(vm, value));
         },
         [](auto symbol) {
             switch (symbol) {

Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp

@@ -1642,7 +1642,7 @@ ThrowCompletionOr<DurationRecord> adjust_rounded_duration_days(VM& vm, double ye
     }
 
     // 10. Set timeRemainderNs to ! RoundTemporalInstant(ℤ(timeRemainderNs - dayLengthNs), increment, unit, roundingMode).
-    time_remainder_ns = round_temporal_instant(vm, *js_bigint(vm, time_remainder_ns.minus(day_length_ns)), increment, unit, rounding_mode)->big_integer();
+    time_remainder_ns = round_temporal_instant(vm, BigInt::create(vm, time_remainder_ns.minus(day_length_ns)), increment, unit, rounding_mode)->big_integer();
 
     // 11. Let adjustedDateDuration be ? AddDuration(years, months, weeks, days, 0, 0, 0, 0, 0, 0, 0, 0, 0, direction, 0, 0, 0, 0, 0, 0, relativeTo).
     auto adjusted_date_duration = TRY(add_duration(vm, years, months, weeks, days, 0, 0, 0, 0, 0, 0, 0, 0, 0, direction, 0, 0, 0, 0, 0, 0, &relative_to));

Userland/Libraries/LibJS/Runtime/Temporal/Instant.cpp

@@ -143,7 +143,7 @@ ThrowCompletionOr<BigInt*> parse_temporal_instant(VM& vm, DeprecatedString const
     }
 
     // 9. Return result.
-    return js_bigint(vm, move(result_ns));
+    return BigInt::create(vm, move(result_ns)).ptr();
 }
 
 // 8.5.5 CompareEpochNanoseconds ( epochNanosecondsOne, epochNanosecondsTwo ), https://tc39.es/proposal-temporal/#sec-temporal-compareepochnanoseconds
@@ -167,7 +167,7 @@ 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.
-    auto* result = js_bigint(vm,
+    auto result = BigInt::create(vm,
         epoch_nanoseconds.big_integer()
             .plus(Crypto::SignedBigInteger { nanoseconds })
             .plus(Crypto::SignedBigInteger { microseconds }.multiplied_by(Crypto::SignedBigInteger { 1'000 }))
@@ -181,7 +181,7 @@ ThrowCompletionOr<BigInt*> add_instant(VM& vm, BigInt const& epoch_nanoseconds,
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 3. Return result.
-    return result;
+    return result.ptr();
 }
 
 // 8.5.7 DifferenceInstant ( ns1, ns2, roundingIncrement, smallestUnit, roundingMode ), https://tc39.es/proposal-temporal/#sec-temporal-differenceinstant
@@ -191,7 +191,7 @@ BigInt* difference_instant(VM& vm, BigInt const& nanoseconds1, BigInt const& nan
     // 2. Assert: Type(ns2) is BigInt.
 
     // 3. Return ! RoundTemporalInstant(ns2 - ns1, roundingIncrement, smallestUnit, roundingMode).
-    return round_temporal_instant(vm, *js_bigint(vm, nanoseconds2.big_integer().minus(nanoseconds1.big_integer())), rounding_increment, smallest_unit, rounding_mode);
+    return round_temporal_instant(vm, BigInt::create(vm, nanoseconds2.big_integer().minus(nanoseconds1.big_integer())), rounding_increment, smallest_unit, rounding_mode);
 }
 
 // 8.5.8 RoundTemporalInstant ( ns, increment, unit, roundingMode ), https://tc39.es/proposal-temporal/#sec-temporal-roundtemporalinstant
@@ -235,7 +235,7 @@ BigInt* round_temporal_instant(VM& vm, BigInt const& nanoseconds, u64 increment,
     }
 
     // 8. Return RoundNumberToIncrementAsIfPositive(ℝ(ns), incrementNs, roundingMode).
-    return js_bigint(vm, round_number_to_increment_as_if_positive(nanoseconds.big_integer(), increment_nanoseconds, rounding_mode));
+    return BigInt::create(vm, round_number_to_increment_as_if_positive(nanoseconds.big_integer(), increment_nanoseconds, rounding_mode));
 }
 
 // 8.5.9 TemporalInstantToString ( instant, timeZone, precision ), https://tc39.es/proposal-temporal/#sec-temporal-temporalinstanttostring

Userland/Libraries/LibJS/Runtime/Temporal/InstantConstructor.cpp

@@ -72,7 +72,7 @@ JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from)
     // 1. If Type(item) is Object and item has an [[InitializedTemporalInstant]] internal slot, then
     if (item.is_object() && is<Instant>(item.as_object())) {
         // a. Return ! CreateTemporalInstant(item.[[Nanoseconds]]).
-        return MUST(create_temporal_instant(vm, *js_bigint(vm, static_cast<Instant&>(item.as_object()).nanoseconds().big_integer())));
+        return MUST(create_temporal_instant(vm, BigInt::create(vm, static_cast<Instant&>(item.as_object()).nanoseconds().big_integer())));
     }
 
     // 2. Return ? ToTemporalInstant(item).
@@ -89,14 +89,14 @@ JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_seconds)
     auto* epoch_seconds = TRY(number_to_bigint(vm, epoch_seconds_value));
 
     // 3. Let epochNanoseconds be epochSeconds × 10^9ℤ.
-    auto* epoch_nanoseconds = js_bigint(vm, epoch_seconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000'000 }));
+    auto epoch_nanoseconds = BigInt::create(vm, epoch_seconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000'000 }));
 
     // 4. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
+    if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 5. Return ! CreateTemporalInstant(epochNanoseconds).
-    return MUST(create_temporal_instant(vm, *epoch_nanoseconds));
+    return MUST(create_temporal_instant(vm, epoch_nanoseconds));
 }
 
 // 8.2.4 Temporal.Instant.fromEpochMilliseconds ( epochMilliseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochmilliseconds
@@ -109,14 +109,14 @@ JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_milliseconds)
     auto* epoch_milliseconds = TRY(number_to_bigint(vm, epoch_milliseconds_value));
 
     // 3. Let epochNanoseconds be epochMilliseconds × 10^6ℤ.
-    auto* epoch_nanoseconds = js_bigint(vm, epoch_milliseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000 }));
+    auto epoch_nanoseconds = BigInt::create(vm, epoch_milliseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000'000 }));
 
     // 4. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
+    if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 5. Return ! CreateTemporalInstant(epochNanoseconds).
-    return MUST(create_temporal_instant(vm, *epoch_nanoseconds));
+    return MUST(create_temporal_instant(vm, epoch_nanoseconds));
 }
 
 // 8.2.5 Temporal.Instant.fromEpochMicroseconds ( epochMicroseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochmicroseconds
@@ -126,14 +126,14 @@ JS_DEFINE_NATIVE_FUNCTION(InstantConstructor::from_epoch_microseconds)
     auto* epoch_microseconds = TRY(vm.argument(0).to_bigint(vm));
 
     // 2. Let epochNanoseconds be epochMicroseconds × 1000ℤ.
-    auto* epoch_nanoseconds = js_bigint(vm, epoch_microseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000 }));
+    auto epoch_nanoseconds = BigInt::create(vm, epoch_microseconds->big_integer().multiplied_by(Crypto::UnsignedBigInteger { 1'000 }));
 
     // 3. If ! IsValidEpochNanoseconds(epochNanoseconds) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*epoch_nanoseconds))
+    if (!is_valid_epoch_nanoseconds(epoch_nanoseconds))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 4. Return ! CreateTemporalInstant(epochNanoseconds).
-    return MUST(create_temporal_instant(vm, *epoch_nanoseconds));
+    return MUST(create_temporal_instant(vm, epoch_nanoseconds));
 }
 
 // 8.2.6 Temporal.Instant.fromEpochNanoseconds ( epochNanoseconds ), https://tc39.es/proposal-temporal/#sec-temporal.instant.fromepochnanoseconds

Userland/Libraries/LibJS/Runtime/Temporal/InstantPrototype.cpp

@@ -101,7 +101,7 @@ JS_DEFINE_NATIVE_FUNCTION(InstantPrototype::epoch_microseconds_getter)
     auto [us, _] = ns.big_integer().divided_by(Crypto::UnsignedBigInteger { 1'000 });
 
     // 5. Return ℤ(µs).
-    return js_bigint(vm, move(us));
+    return BigInt::create(vm, move(us));
 }
 
 // 8.3.6 get Temporal.Instant.prototype.epochNanoseconds, https://tc39.es/proposal-temporal/#sec-get-temporal.instant.prototype.epochnanoseconds

Userland/Libraries/LibJS/Runtime/Temporal/Now.cpp

@@ -170,7 +170,7 @@ BigInt* system_utc_epoch_nanoseconds(VM& vm)
     //       if an overflow occurs during seconds -> nanoseconds conversion.
 
     // 3. Return ℤ(ns).
-    return js_bigint(vm, move(ns));
+    return BigInt::create(vm, move(ns));
 }
 
 // 2.3.3 SystemInstant ( ), https://tc39.es/proposal-temporal/#sec-temporal-systeminstant

Userland/Libraries/LibJS/Runtime/Temporal/TimeZone.cpp

@@ -99,7 +99,7 @@ ThrowCompletionOr<TimeZone*> create_temporal_time_zone(VM& vm, DeprecatedString
 ISODateTime get_iso_parts_from_epoch(VM& vm, Crypto::SignedBigInteger const& epoch_nanoseconds)
 {
     // 1. Assert: ! IsValidEpochNanoseconds(ℤ(epochNanoseconds)) is true.
-    VERIFY(is_valid_epoch_nanoseconds(*js_bigint(vm, epoch_nanoseconds)));
+    VERIFY(is_valid_epoch_nanoseconds(BigInt::create(vm, epoch_nanoseconds)));
 
     // 2. Let remainderNs be epochNanoseconds modulo 10^6.
     auto remainder_ns_bigint = modulo(epoch_nanoseconds, Crypto::UnsignedBigInteger { 1'000'000 });
@@ -480,24 +480,24 @@ ThrowCompletionOr<Instant*> disambiguate_possible_instants(VM& vm, MarkedVector<
     auto epoch_nanoseconds = get_utc_epoch_nanoseconds(date_time.iso_year(), date_time.iso_month(), date_time.iso_day(), date_time.iso_hour(), date_time.iso_minute(), date_time.iso_second(), date_time.iso_millisecond(), date_time.iso_microsecond(), date_time.iso_nanosecond());
 
     // 8. Let dayBeforeNs be epochNanoseconds - ℤ(nsPerDay).
-    auto* day_before_ns = js_bigint(vm, epoch_nanoseconds.minus(ns_per_day_bigint));
+    auto day_before_ns = BigInt::create(vm, epoch_nanoseconds.minus(ns_per_day_bigint));
 
     // 9. If ! IsValidEpochNanoseconds(dayBeforeNs) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*day_before_ns))
+    if (!is_valid_epoch_nanoseconds(day_before_ns))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 10. Let dayBefore be ! CreateTemporalInstant(dayBeforeNs).
-    auto* day_before = MUST(create_temporal_instant(vm, *day_before_ns));
+    auto* day_before = MUST(create_temporal_instant(vm, day_before_ns));
 
     // 11. Let dayAfterNs be epochNanoseconds + ℤ(nsPerDay).
-    auto* day_after_ns = js_bigint(vm, epoch_nanoseconds.plus(ns_per_day_bigint));
+    auto day_after_ns = BigInt::create(vm, epoch_nanoseconds.plus(ns_per_day_bigint));
 
     // 12. If ! IsValidEpochNanoseconds(dayAfterNs) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*day_after_ns))
+    if (!is_valid_epoch_nanoseconds(day_after_ns))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 13. Let dayAfter be ! CreateTemporalInstant(dayAfterNs).
-    auto* day_after = MUST(create_temporal_instant(vm, *day_after_ns));
+    auto* day_after = MUST(create_temporal_instant(vm, day_after_ns));
 
     // 14. Let offsetBefore be ? GetOffsetNanosecondsFor(timeZone, dayBefore).
     auto offset_before = TRY(get_offset_nanoseconds_for(vm, time_zone, *day_before));

Userland/Libraries/LibJS/Runtime/Temporal/TimeZonePrototype.cpp

@@ -164,8 +164,8 @@ JS_DEFINE_NATIVE_FUNCTION(TimeZonePrototype::get_possible_instants_for)
             return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
         // b. Let instant be ! CreateTemporalInstant(epochNanoseconds).
-        auto* epoch_nanoseconds_bigint = js_bigint(vm, move(epoch_nanoseconds));
+        auto epoch_nanoseconds_bigint = BigInt::create(vm, move(epoch_nanoseconds));
-        auto* instant = MUST(create_temporal_instant(vm, *epoch_nanoseconds_bigint));
+        auto* instant = MUST(create_temporal_instant(vm, epoch_nanoseconds_bigint));
 
         // c. Append instant to possibleInstants.
         possible_instants.append(instant);

Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp

@@ -69,7 +69,7 @@ ThrowCompletionOr<BigInt const*> interpret_iso_date_time_offset(VM& vm, i32 year
             return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
         // d. Return epochNanoseconds.
-        return js_bigint(vm, move(epoch_nanoseconds));
+        return BigInt::create(vm, move(epoch_nanoseconds)).ptr();
     }
 
     // 5. Assert: offsetBehaviour is option.
@@ -471,7 +471,7 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
     auto& start_ns = relative_to.nanoseconds().big_integer();
 
     // 6. Let startInstant be ! CreateTemporalInstant(ℤ(startNs)).
-    auto* start_instant = MUST(create_temporal_instant(vm, *js_bigint(vm, start_ns)));
+    auto* start_instant = MUST(create_temporal_instant(vm, BigInt::create(vm, start_ns)));
 
     // 7. Let startDateTime be ? BuiltinTimeZoneGetPlainDateTimeFor(relativeTo.[[TimeZone]], startInstant, relativeTo.[[Calendar]]).
     auto* start_date_time = TRY(builtin_time_zone_get_plain_date_time_for(vm, &relative_to.time_zone(), *start_instant, relative_to.calendar()));
@@ -479,14 +479,14 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
     // 8. Let endNs be startNs + nanoseconds.
     auto end_ns = start_ns.plus(nanoseconds);
 
-    auto* end_ns_bigint = js_bigint(vm, end_ns);
+    auto end_ns_bigint = BigInt::create(vm, end_ns);
 
     // 9. If ! IsValidEpochNanoseconds(ℤ(endNs)) is false, throw a RangeError exception.
-    if (!is_valid_epoch_nanoseconds(*end_ns_bigint))
+    if (!is_valid_epoch_nanoseconds(end_ns_bigint))
         return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidEpochNanoseconds);
 
     // 10. Let endInstant be ! CreateTemporalInstant(ℤ(endNs)).
-    auto* end_instant = MUST(create_temporal_instant(vm, *end_ns_bigint));
+    auto* end_instant = MUST(create_temporal_instant(vm, end_ns_bigint));
 
     // 11. Let endDateTime be ? BuiltinTimeZoneGetPlainDateTimeFor(relativeTo.[[TimeZone]], endInstant, relativeTo.[[Calendar]]).
     auto* end_date_time = TRY(builtin_time_zone_get_plain_date_time_for(vm, &relative_to.time_zone(), *end_instant, relative_to.calendar()));
@@ -498,7 +498,7 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
     auto days = date_difference.days;
 
     // 14. Let intermediateNs be ℝ(? AddZonedDateTime(ℤ(startNs), relativeTo.[[TimeZone]], relativeTo.[[Calendar]], 0, 0, 0, days, 0, 0, 0, 0, 0, 0)).
-    auto intermediate_ns = TRY(add_zoned_date_time(vm, *js_bigint(vm, start_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, days, 0, 0, 0, 0, 0, 0))->big_integer();
+    auto intermediate_ns = TRY(add_zoned_date_time(vm, BigInt::create(vm, start_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, days, 0, 0, 0, 0, 0, 0))->big_integer();
 
     // 15. If sign is 1, then
     if (sign == 1) {
@@ -508,7 +508,7 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
             days--;
 
             // ii. Set intermediateNs to ℝ(? AddZonedDateTime(ℤ(startNs), relativeTo.[[TimeZone]], relativeTo.[[Calendar]], 0, 0, 0, days, 0, 0, 0, 0, 0, 0)).
-            intermediate_ns = TRY(add_zoned_date_time(vm, *js_bigint(vm, start_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, days, 0, 0, 0, 0, 0, 0))->big_integer();
+            intermediate_ns = TRY(add_zoned_date_time(vm, BigInt::create(vm, start_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, days, 0, 0, 0, 0, 0, 0))->big_integer();
         }
     }
 
@@ -519,7 +519,7 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(VM& vm, Crypto::S
     // 18. Repeat, while done is false,
     while (true) {
         // a. Let oneDayFartherNs be ℝ(? AddZonedDateTime(ℤ(intermediateNs), relativeTo.[[TimeZone]], relativeTo.[[Calendar]], 0, 0, 0, sign, 0, 0, 0, 0, 0, 0)).
-        auto one_day_farther_ns = TRY(add_zoned_date_time(vm, *js_bigint(vm, intermediate_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, sign, 0, 0, 0, 0, 0, 0))->big_integer();
+        auto one_day_farther_ns = TRY(add_zoned_date_time(vm, BigInt::create(vm, intermediate_ns), &relative_to.time_zone(), relative_to.calendar(), 0, 0, 0, sign, 0, 0, 0, 0, 0, 0))->big_integer();
 
         // b. Set dayLengthNs to oneDayFartherNs - intermediateNs.
         day_length_ns = one_day_farther_ns.minus(intermediate_ns);

Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp

@@ -391,7 +391,7 @@ JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::epoch_microseconds_getter)
     auto us = ns.big_integer().divided_by(Crypto::UnsignedBigInteger { 1'000 }).quotient;
 
     // 5. Return ℤ(µs).
-    return js_bigint(vm, move(us));
+    return BigInt::create(vm, move(us));
 }
 
 // 6.3.18 get Temporal.ZonedDateTime.prototype.epochNanoseconds, https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.epochnanoseconds

Userland/Libraries/LibJS/Runtime/Value.cpp

@@ -608,7 +608,7 @@ ThrowCompletionOr<BigInt*> Value::to_bigint(VM& vm) const
         return vm.throw_completion<TypeError>(ErrorType::Convert, "null", "BigInt");
     case BOOLEAN_TAG: {
         auto value = primitive.as_bool() ? 1 : 0;
-        return js_bigint(vm, Crypto::SignedBigInteger { value });
+        return BigInt::create(vm, Crypto::SignedBigInteger { value }).ptr();
     }
     case BIGINT_TAG:
         return &primitive.as_bigint();
@@ -695,7 +695,7 @@ static Optional<BigInt*> string_to_bigint(VM& vm, StringView string)
         bigint.negate();
 
     // 6. Return ℤ(mv).
-    return js_bigint(vm, move(bigint));
+    return BigInt::create(vm, move(bigint));
 }
 
 // 7.1.15 ToBigInt64 ( argument ), https://tc39.es/ecma262/#sec-tobigint64
@@ -1012,7 +1012,7 @@ ThrowCompletionOr<Value> bitwise_and(VM& vm, Value lhs, Value rhs)
         return Value(TRY(lhs_numeric.to_i32(vm)) & TRY(rhs_numeric.to_i32(vm)));
     }
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().bitwise_and(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().bitwise_and(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "bitwise AND");
 }
 
@@ -1031,7 +1031,7 @@ ThrowCompletionOr<Value> bitwise_or(VM& vm, Value lhs, Value rhs)
         return Value(TRY(lhs_numeric.to_i32(vm)) | TRY(rhs_numeric.to_i32(vm)));
     }
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().bitwise_or(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().bitwise_or(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "bitwise OR");
 }
 
@@ -1050,7 +1050,7 @@ ThrowCompletionOr<Value> bitwise_xor(VM& vm, Value lhs, Value rhs)
         return Value(TRY(lhs_numeric.to_i32(vm)) ^ TRY(rhs_numeric.to_i32(vm)));
     }
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().bitwise_xor(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().bitwise_xor(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "bitwise XOR");
 }
 
@@ -1060,7 +1060,7 @@ ThrowCompletionOr<Value> bitwise_not(VM& vm, Value lhs)
     auto lhs_numeric = TRY(lhs.to_numeric(vm));
     if (lhs_numeric.is_number())
         return Value(~TRY(lhs_numeric.to_i32(vm)));
-    return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().bitwise_not()));
+    return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().bitwise_not());
 }
 
 // 13.5.4 Unary + Operator, https://tc39.es/ecma262/#sec-unary-plus-operator
@@ -1079,10 +1079,10 @@ ThrowCompletionOr<Value> unary_minus(VM& vm, Value lhs)
         return Value(-lhs_numeric.as_double());
     }
     if (lhs_numeric.as_bigint().big_integer() == BIGINT_ZERO)
-        return Value(js_bigint(vm, BIGINT_ZERO));
+        return BigInt::create(vm, BIGINT_ZERO);
     auto big_integer_negated = lhs_numeric.as_bigint().big_integer();
     big_integer_negated.negate();
-    return Value(js_bigint(vm, big_integer_negated));
+    return BigInt::create(vm, big_integer_negated);
 }
 
 // 13.9.1 The Left Shift Operator ( << ), https://tc39.es/ecma262/#sec-left-shift-operator
@@ -1113,12 +1113,12 @@ ThrowCompletionOr<Value> left_shift(VM& vm, Value lhs, Value rhs)
 
             // For positive initial values and no remainder just return quotient
             if (division_result.remainder.is_zero() || !big_integer.is_negative())
-                return js_bigint(vm, division_result.quotient);
+                return BigInt::create(vm, division_result.quotient);
             // For negative round "down" to the next negative number
-            return js_bigint(vm, division_result.quotient.minus(Crypto::SignedBigInteger { 1 }));
+            return BigInt::create(vm, division_result.quotient.minus(Crypto::SignedBigInteger { 1 }));
         }
         // 2. Return the BigInt value that represents ℝ(x) × 2^y.
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().multiplied_by(multiplier_divisor)));
+        return Value(BigInt::create(vm, lhs_numeric.as_bigint().big_integer().multiplied_by(multiplier_divisor)));
     }
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "left-shift");
 }
@@ -1140,7 +1140,7 @@ ThrowCompletionOr<Value> right_shift(VM& vm, Value lhs, Value rhs)
     if (both_bigint(lhs_numeric, rhs_numeric)) {
         auto rhs_negated = rhs_numeric.as_bigint().big_integer();
         rhs_negated.negate();
-        return left_shift(vm, lhs, js_bigint(vm, rhs_negated));
+        return left_shift(vm, lhs, BigInt::create(vm, rhs_negated));
     }
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "right-shift");
 }
@@ -1190,7 +1190,7 @@ ThrowCompletionOr<Value> add(VM& vm, Value lhs, Value rhs)
     if (both_number(lhs_numeric, rhs_numeric))
         return Value(lhs_numeric.as_double() + rhs_numeric.as_double());
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().plus(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().plus(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "addition");
 }
 
@@ -1206,7 +1206,7 @@ ThrowCompletionOr<Value> sub(VM& vm, Value lhs, Value rhs)
         return Value(interm);
     }
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().minus(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().minus(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "subtraction");
 }
 
@@ -1218,7 +1218,7 @@ ThrowCompletionOr<Value> mul(VM& vm, Value lhs, Value rhs)
     if (both_number(lhs_numeric, rhs_numeric))
         return Value(lhs_numeric.as_double() * rhs_numeric.as_double());
     if (both_bigint(lhs_numeric, rhs_numeric))
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().multiplied_by(rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().multiplied_by(rhs_numeric.as_bigint().big_integer()));
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "multiplication");
 }
 
@@ -1232,7 +1232,7 @@ ThrowCompletionOr<Value> div(VM& vm, Value lhs, Value rhs)
     if (both_bigint(lhs_numeric, rhs_numeric)) {
         if (rhs_numeric.as_bigint().big_integer() == BIGINT_ZERO)
             return vm.throw_completion<RangeError>(ErrorType::DivisionByZero);
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().divided_by(rhs_numeric.as_bigint().big_integer()).quotient));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().divided_by(rhs_numeric.as_bigint().big_integer()).quotient);
     }
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "division");
 }
@@ -1253,7 +1253,7 @@ ThrowCompletionOr<Value> mod(VM& vm, Value lhs, Value rhs)
     if (both_bigint(lhs_numeric, rhs_numeric)) {
         if (rhs_numeric.as_bigint().big_integer() == BIGINT_ZERO)
             return vm.throw_completion<RangeError>(ErrorType::DivisionByZero);
-        return Value(js_bigint(vm, lhs_numeric.as_bigint().big_integer().divided_by(rhs_numeric.as_bigint().big_integer()).remainder));
+        return BigInt::create(vm, lhs_numeric.as_bigint().big_integer().divided_by(rhs_numeric.as_bigint().big_integer()).remainder);
     }
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "modulo");
 }
@@ -1320,7 +1320,7 @@ ThrowCompletionOr<Value> exp(VM& vm, Value lhs, Value rhs)
     if (both_bigint(lhs_numeric, rhs_numeric)) {
         if (rhs_numeric.as_bigint().big_integer().is_negative())
             return vm.throw_completion<RangeError>(ErrorType::NegativeExponent);
-        return Value(js_bigint(vm, Crypto::NumberTheory::Power(lhs_numeric.as_bigint().big_integer(), rhs_numeric.as_bigint().big_integer())));
+        return BigInt::create(vm, Crypto::NumberTheory::Power(lhs_numeric.as_bigint().big_integer(), rhs_numeric.as_bigint().big_integer()));
     }
     return vm.throw_completion<TypeError>(ErrorType::BigIntBadOperatorOtherType, "exponentiation");
 }