Struct PairRate 

pub struct PairRate {
    pub token_pair: (String, String),
    pub rate: (u128, u128),
    pub decimals: (u8, u8),
}

价格信息结构体

Fields

token_pair: (String, String)

rate: (u128, u128)

decimals: (u8, u8)

Implementations

impl PairRate

pub fn new( token_pair: (String, String), rate: (u128, u128), decimals: (u8, u8), ) -> Result<Self, String>

创建新的价格对实例，带验证

pub fn calculate_output_amount( price: &PairRate, input_amount: u128, ) -> Result<u128, String>

根据价格和输入代币数量计算输出代币数量

pub fn calculate_input_amount( price: &PairRate, output_amount: u128, ) -> Result<u128, String>

根据价格和输出代币数量计算需要的输入代币数量

pub fn get_price_rate(&self) -> ((u128, u128), (u8, u8))

获取价格率，返回比率和精度

pub fn get_human_readable_rate(&self) -> f64

获取人类可读的价格率（注意：可能损失精度）

pub fn is_valid(&self) -> bool

验证价格是否有效

Trait Implementations

impl Clone for PairRate

fn clone(&self) -> PairRate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PairRate

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

Formats the value using the given formatter.

impl Default for PairRate

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PairRate

fn eq(&self, other: &PairRate) -> 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 PairRate