Enum StorageAlias 

pub enum StorageAlias {
    Slot(U256),
    Symbolic(ValueId),
    Offset {
        base: ValueId,
        offset: U256,
    },
}

A conservative storage alias key.

Variants

Slot(U256)

A known absolute storage slot.

Symbolic(ValueId)

A loop-invariant symbolic slot value.

Offset

A loop-invariant symbolic base plus a known constant offset.

Fields

base: ValueId

Symbolic base slot.

offset: U256

Constant offset added to the base.

Implementations

impl StorageAlias

pub fn for_value(func: &Function, value: ValueId) -> Self

Computes a conservative exact storage alias key for value.

pub fn may_alias(self, other: Self) -> bool

Returns true if two alias keys may refer to the same storage slot.

pub const fn symbolic_base(self) -> Option<ValueId>

Returns the symbolic base value, if this alias has one.

Trait Implementations

impl Clone for StorageAlias

fn clone(&self) -> StorageAlias

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for StorageAlias

impl Debug for StorageAlias

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for StorageAlias

impl Hash for StorageAlias

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for StorageAlias

fn eq(&self, other: &StorageAlias) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for StorageAlias