cast

Documentation

Index

• func CastFloatInterfaceToFloat[To FloatNumber](i interface{}) (To, bool)
• func CastInterfaceListToFloatList[To FloatNumber](list []interface{}) ([]To, bool)
• func CastInterfaceListToIntList[To SignedInt | UnsignedInt](list []interface{}) ([]To, bool)
• func CastInterfaceToFloatList[To FloatNumber](i interface{}) ([]To, bool)
• func CastInterfaceToIntList[To SignedInt | UnsignedInt](i interface{}) ([]To, bool)
• func CastInterfaceToStringMap[To any, From any](m interface{}) (map[string]To, bool)
• func CastList[To any, From any](list []From) ([]To, bool)
• func CastList2[To any, From any](list interface{}) ([]To, bool)
• func CastListToFloatList2[To FloatNumber](list interface{}) ([]To, bool)
• func CastListToIntList2[To SignedInt | UnsignedInt](list interface{}) ([]To, bool)
• func CastListToInterfaceList(value interface{}) ([]interface{}, error)
• func CastListToStringList(list interface{}) ([]string, error)
• func CastMapToInterfaceMap[From any](m map[string]From) map[string]interface{}
• func CastNumberInterfaceToFloat[To FloatNumber](i interface{}) (To, bool)
• func CastNumberInterfaceToInt[To SignedInt | UnsignedInt](i interface{}) (To, bool)
• func CastStringListToList[T ~string](list []string) ([]T, error)
• func CastStringMap[To any, From any](m map[string]From) (map[string]To, bool)
• func CastToNumberList[To Number, From Number](list []From) ([]To, bool)
• func ConvertMapToInterfaceMap(input interface{}) (map[string]interface{}, error)
• func InterfaceAddr[T any](t T) *interface{}
• func ToInterfaceValue(value interface{}) (interface{}, error)
• func ToString(value interface{}) (string, error)
• type FloatNumber
• type Number
• type SignedInt
• type UnsignedInt

Functions

func CastFloatInterfaceToFloat

func CastFloatInterfaceToFloat[To FloatNumber](i interface{}) (To, bool)

func CastInterfaceListToFloatList

func CastInterfaceListToFloatList[To FloatNumber](list []interface{}) ([]To, bool)

func CastInterfaceListToIntList

func CastInterfaceListToIntList[To SignedInt | UnsignedInt](list []interface{}) ([]To, bool)

func CastInterfaceToFloatList

func CastInterfaceToFloatList[To FloatNumber](i interface{}) ([]To, bool)

func CastInterfaceToIntList

func CastInterfaceToIntList[To SignedInt | UnsignedInt](i interface{}) ([]To, bool)

func CastInterfaceToStringMap

func CastInterfaceToStringMap[To any, From any](m interface{}) (map[string]To, bool)

func CastList

func CastList[To any, From any](list []From) ([]To, bool)

CastList casts a list of From objects to To, by casting it to an interface{} in between.

func CastList2

func CastList2[To any, From any](list interface{}) ([]To, bool)

CastList2 attempts even harder to cast a list of From object to To, by checking if we might be dealing with a list masquerading as a interface{}, then a []interface{}, before checking for []To.

func CastListToFloatList2

func CastListToFloatList2[To FloatNumber](list interface{}) ([]To, bool)

func CastListToIntList2

func CastListToIntList2[To SignedInt | UnsignedInt](list interface{}) ([]To, bool)

func CastListToInterfaceList

func CastListToInterfaceList(value interface{}) ([]interface{}, error)

CastListToInterfaceList attempts to convert the given value to a list of interface{}.

The function checks if the provided value is a slice or an array. If so, it returns a slice of interface{}, where each item in the original slice or array is converted to its interface{} representation.

func CastListToStringList

func CastListToStringList(list interface{}) ([]string, error)

CastListToStringList casts a list of items to a list of strings. It handles both string aliases and string declarations.

func CastMapToInterfaceMap

func CastMapToInterfaceMap[From any](m map[string]From) map[string]interface{}

func CastNumberInterfaceToFloat

func CastNumberInterfaceToFloat[To FloatNumber](i interface{}) (To, bool)

func CastNumberInterfaceToInt

func CastNumberInterfaceToInt[To SignedInt | UnsignedInt](i interface{}) (To, bool)

func CastStringListToList

func CastStringListToList[T ~string](list []string) ([]T, error)

CastStringListToList casts a list of strings to a list of a specified type T. The target type T must be a string alias or string declaration.

func CastStringMap

func CastStringMap[To any, From any](m map[string]From) (map[string]To, bool)

func CastToNumberList

func CastToNumberList[To Number, From Number](list []From) ([]To, bool)

CastToNumberList casts a list of From objects to To. This is useful for transform between different int types, for example.

func ConvertMapToInterfaceMap

func ConvertMapToInterfaceMap(input interface{}) (map[string]interface{}, error)

func InterfaceAddr

func InterfaceAddr[T any](t T) *interface{}

func ToInterfaceValue

func ToInterfaceValue(value interface{}) (interface{}, error)

ToInterfaceValue converts a given value of any basic Go type (scalars, slices, arrays, maps) into a corresponding interface{}. Scalar types are returned as is. Slices and arrays are converted to []interface{} with each element being recursively processed. Maps are converted to map[string]interface{} with each value being recursively processed. The function uses reflection to handle various types dynamically. It returns an error if it encounters a type that it cannot process, or if map keys are not strings.

func ToString

func ToString(value interface{}) (string, error)

ToString converts a value to a string using reflection. It handles both type aliases and type declarations based on string.

This function is useful for dynamically converting values to strings at runtime, especially when dealing with types that may not be known at compile time.

Types

type FloatNumber

type FloatNumber interface {
	float32 | float64
}

type Number

type Number interface {
	int | int8 | int16 | int32 | int64 | uint | uint8 | uint16 | uint32 | uint64 | uintptr | float32 | float64
}

type SignedInt

type SignedInt interface {
	int | int8 | int16 | int32 | int64
}

type UnsignedInt

type UnsignedInt interface {
	uint | uint8 | uint16 | uint32 | uint64 | uintptr
}