Enum Allowance 

pub enum Allowance {
    Max,
    Amount(Decimal),
    Unknown(String),
}

An ERC20 allowance as reported by /v1/approvals.

Upstream sends a string that is either the sentinel "max" or a decimal amount in the token’s base units. ERC1155 entries carry no amount at all, which is represented by Option::None on the containing field rather than by a variant here.

Variants

Max

The unlimited-allowance sentinel ("max").

Amount(Decimal)

A concrete allowance, in the token’s base units.

Unknown(String)

A value that is neither "max" nor a decimal rust_decimal can hold, preserved verbatim.

rust_decimal tops out near 7.9e28 while a uint256 allowance can reach 1.2e77, so an unusually large approval lands here instead of failing deserialization of the entire response.

Trait Implementations

impl Clone for Allowance

fn clone(&self) -> Allowance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Allowance

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Allowance

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Allowance

impl PartialEq for Allowance

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Allowance

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Allowance