coin

package

v3.0.5 Latest Latest Go to latest Published: Dec 27, 2025 License: MIT Imports: 9 Imported by: 0

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Repository

github.com/xs23933/core

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Documentation ¶

Index ¶

Constants
Variables
type Money

Constants ¶

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const MoneyScale = 8

========================================== 常量与基数 ==========================================

Variables ¶

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var (
	MoneyBase = new(big.Int).Exp(big.NewInt(10), big.NewInt(MoneyScale), nil) // 10^8

)

Functions ¶

This section is empty.

Types ¶

type Money ¶ added in v3.0.5

type Money struct {
	// contains filtered or unexported fields
}

========================================== Money 结构体内部使用 big.Int 存储最小单位（固定 8 位小数） ==========================================

func FromInt ¶

func FromInt(v *big.Int) Money

func FromInt64 ¶

func FromInt64(v int64) Money

func FromToken ¶

func FromToken(token *big.Int, decimals uint8) Money

TokenAmount → Money decimals: ERC20 decimals

func MustParse ¶ added in v3.0.5

func MustParse(s string) Money

func One ¶ added in v3.0.5

func One() Money

func Parse ¶ added in v3.0.5

func Parse(s string) (Money, error)

func ParseMoney ¶ added in v3.0.5

func ParseMoney(s string) (Money, error)

ParseMoney 从字符串解析，例如 "123.45678901"

func Zero ¶

func Zero() Money

========================================== 构造函数 ==========================================

func (Money) Abs ¶ added in v3.0.5

func (m Money) Abs() Money

func (Money) Add ¶ added in v3.0.5

func (m Money) Add(x Money) Money

========================================== 基础运算 ==========================================

func (Money) Cmp ¶ added in v3.0.5

func (m Money) Cmp(x Money) int

func (Money) Div ¶ added in v3.0.5

func (m Money) Div(x Money) Money

func (Money) DivInt ¶ added in v3.0.5

func (m Money) DivInt(n int64) Money

func (Money) DivIntExact ¶ added in v3.0.5

func (m Money) DivIntExact(n int64) (Money, error)

精确除法（必须整除）

func (Money) GormDBDataType ¶ added in v3.0.5

func (m Money) GormDBDataType(db *gorm.DB, field *schema.Field) string

========================================== GORM / SQL ==========================================

func (Money) GreaterThanOrEqual ¶ added in v3.0.5

func (m Money) GreaterThanOrEqual(o Money) bool

func (Money) Int ¶ added in v3.0.5

func (m Money) Int() *big.Int

func (Money) IsNegative ¶ added in v3.0.5

func (m Money) IsNegative() bool

func (Money) IsZero ¶ added in v3.0.5

func (m Money) IsZero() bool

func (Money) LessThanOrEqual ¶ added in v3.0.5

func (m Money) LessThanOrEqual(o Money) bool

func (Money) MarshalJSON ¶ added in v3.0.5

func (m Money) MarshalJSON() ([]byte, error)

========================================== JSON ==========================================

func (Money) Mul ¶ added in v3.0.5

func (m Money) Mul(x Money) Money

func (Money) MulInt ¶ added in v3.0.5

func (m Money) MulInt(n int64) Money

func (Money) MulRate ¶ added in v3.0.5

func (m Money) MulRate(rate *big.Int) Money

MulRate 基于 MoneyBase 的比例乘法 rate 是 *1e8 表示的小数（如 0.002 = 200000）

func (Money) MulRatio ¶ added in v3.0.5

func (m Money) MulRatio(numerator, denominator *big.Int) Money

MulRatio 向下截断的比例乘法等价于：m * numerator / denominator

func (Money) MulRatioFloor ¶ added in v3.0.5

func (m Money) MulRatioFloor(
	numerator,
	denominator *big.Int,
) Money

MulRatioFloor 返回 floor(m * numerator / denominator)

func (*Money) Scan ¶ added in v3.0.5

func (m *Money) Scan(value any) error

func (Money) String ¶ added in v3.0.5

func (m Money) String() string

========================================== 输出 ==========================================

func (Money) Sub ¶ added in v3.0.5

func (m Money) Sub(x Money) Money

func (Money) ToToken ¶ added in v3.0.5

func (m Money) ToToken(decimals uint8) (*big.Int, error)

Money → TokenAmount

func (*Money) UnmarshalJSON ¶ added in v3.0.5

func (m *Money) UnmarshalJSON(data []byte) error

func (Money) Value ¶ added in v3.0.5

func (m Money) Value() (driver.Value, error)

Source Files ¶

View all Source files

money.go

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