Type Alias StorageHint 

pub type StorageHint = SlotKind;

Backwards-compatible alias. Prefer SlotKind in new code.

Aliased Type

pub enum StorageHint {
    Float64,
    NullableFloat64,
    Int8,
    NullableInt8,
    UInt8,
    NullableUInt8,
    Int16,
    NullableInt16,
    UInt16,
    NullableUInt16,
    Int32,
    NullableInt32,
    UInt32,
    NullableUInt32,
    Int64,
    NullableInt64,
    UInt64,
    NullableUInt64,
    IntSize,
    NullableIntSize,
    UIntSize,
    NullableUIntSize,
    Bool,
    String,
    NanBoxed,
    Unknown,
}

Variants

Float64

Plain f64 value (direct float operations)

NullableFloat64

Nullable f64 using NaN sentinel (Option) IEEE 754: NaN + x = NaN, so null propagates automatically

Int8

Plain i8 value

NullableInt8

Nullable i8 value

UInt8

Plain u8 value

NullableUInt8

Nullable u8 value

Int16

Plain i16 value

NullableInt16

Nullable i16 value

UInt16

Plain u16 value

NullableUInt16

Nullable u16 value

Int32

Plain i32 value

NullableInt32

Nullable i32 value

UInt32

Plain u32 value

NullableUInt32

Nullable u32 value

Int64

Plain i64 value

NullableInt64

Nullable i64 value

UInt64

Plain u64 value

NullableUInt64

Nullable u64 value

IntSize

Plain isize value

NullableIntSize

Nullable isize value

UIntSize

Plain usize value

NullableUIntSize

Nullable usize value

Bool

Boolean value

String

String reference

NanBoxed

NaN-boxed value: the raw u64 bits are a valid NaN-boxed interpreter value. Used for boxed locals and operand stack entries in precise deopt metadata. The VM unmarshals these via direct transmute (zero-cost passthrough).

Unknown

Type not determined at compile time (falls back to NaN-boxed dispatch). Should NOT appear in precise deopt metadata — use NanBoxed instead. Reserved for truly uninitialized/unresolved slots.