Struct Amount 

pub struct Amount<'a> {
    pub amount: &'a u64,
    pub operator: &'a u64,
    pub field: &'a Str32,
}

Constraint representing a comparison against the amount of tokens being transferred.

This constraint requires a PayloadType value of PayloadType::Amount. The field value in the Rule is used to locate the numerical amount in the payload to compare to the amount stored in the rule, using the comparison operator stored in the rule.

Fields

amount: &'a u64

The amount to be compared against.

operator: &'a u64

The operator to be used in the comparison.

field: &'a Str32

The field the amount is stored in.

Implementations

impl<'a> Amount<'a>

pub fn from_bytes(bytes: &'a [u8]) -> Result<Self, RuleSetError>

Deserialize a constraint from a byte array.

pub fn serialize( field: String, operator: Operator, amount: u64, ) -> Result<Vec<u8>, RuleSetError>

Serialize a constraint into a byte array.

Trait Implementations

impl<'a> Constraint<'a> for Amount<'a>

fn constraint_type(&self) -> ConstraintType

Returns the type of the constraint.

fn validate( &self, _accounts: &HashMap<Pubkey, &AccountInfo<'_>>, payload: &Payload, _update_rule_state: bool, _rule_set_state_pda: &Option<&AccountInfo<'_>>, _rule_authority: &Option<&AccountInfo<'_>>, ) -> RuleResult

Validates the constraint condition.