Documentation
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Index ¶
- Constants
- func AppendDuration(b []byte, d time.Duration) []byte
- func CheckInt64Bounds(v int64, min int64, max uint64, t reflect.Type) (err error)
- func CheckUint64Bounds(v uint64, max uint64, t reflect.Type) (err error)
- func IsEmpty(v interface{}) bool
- func IsEmptyValue(v reflect.Value) bool
- func IsZero(v interface{}) bool
- func IsZeroValue(v reflect.Value) bool
- func ParseInt(b []byte) (int64, error)
- func ParseUintHex(b []byte) (uint64, error)
- type Tag
Constants ¶
const ( // UintMax is the maximum value of a uint. UintMax = ^uint(0) // UintMin is the minimum value of a uint. UintMin = 0 // Uint8Max is the maximum value of a uint8. Uint8Max = 255 // Uint8Min is the minimum value of a uint8. Uint8Min = 0 // Uint16Max is the maximum value of a uint16. Uint16Max = 65535 // Uint16Min is the minimum value of a uint16. Uint16Min = 0 // Uint32Max is the maximum value of a uint32. Uint32Max = 4294967295 // Uint32Min is the minimum value of a uint32. Uint32Min = 0 // Uint64Max is the maximum value of a uint64. Uint64Max = 18446744073709551615 // Uint64Min is the minimum value of a uint64. Uint64Min = 0 // UintptrMax is the maximum value of a uintptr. UintptrMax = ^uintptr(0) // UintptrMin is the minimum value of a uintptr. UintptrMin = 0 // IntMax is the maximum value of a int. IntMax = int(UintMax >> 1) // IntMin is the minimum value of a int. IntMin = -IntMax - 1 // Int8Max is the maximum value of a int8. Int8Max = 127 // Int8Min is the minimum value of a int8. Int8Min = -128 // Int16Max is the maximum value of a int16. Int16Max = 32767 // Int16Min is the minimum value of a int16. Int16Min = -32768 // Int32Max is the maximum value of a int32. Int32Max = 2147483647 // Int32Min is the minimum value of a int32. Int32Min = -2147483648 // Int64Max is the maximum value of a int64. Int64Max = 9223372036854775807 // Int64Min is the minimum value of a int64. Int64Min = -9223372036854775808 // Float32IntMax is the maximum consecutive integer value representable by a float32. Float32IntMax = 16777216 // Float32IntMin is the minimum consecutive integer value representable by a float32. Float32IntMin = -16777216 // Float64IntMax is the maximum consecutive integer value representable by a float64. Float64IntMax = 9007199254740992 // Float64IntMin is the minimum consecutive integer value representable by a float64. Float64IntMin = -9007199254740992 )
Variables ¶
This section is empty.
Functions ¶
func AppendDuration ¶
AppendDuration appends a human-readable representation of d to b.
The function copies the implementation of time.Duration.String but prevents Go from making a dynamic memory allocation on the returned value.
func CheckInt64Bounds ¶
CheckInt64Bounds verifies that v is within min and max, t represents the original type of v.
func CheckUint64Bounds ¶
CheckUint64Bounds verifies that v is smaller than max, t represents the original type of v.
func IsEmpty ¶
func IsEmpty(v interface{}) bool
IsEmpty returns true if the value given as argument would be considered empty by the standard library packages, and therefore not serialized if `omitempty` is set on a struct field with this value.
func IsEmptyValue ¶
IsEmptyValue returns true if the value given as argument would be considered empty by the standard library packages, and therefore not serialized if `omitempty` is set on a struct field with this value.
Based on https://golang.org/src/encoding/json/encode.go?h=isEmpty
func IsZero ¶
func IsZero(v interface{}) bool
IsZero returns true if the value given as argument is the zero-value of the type of v.
func IsZeroValue ¶
func ParseInt ¶
ParseInt parses a decimanl representation of an int64 from b.
The function is equivalent to calling strconv.ParseInt(string(b), 10, 64) but it prevents Go from making a memory allocation for converting a byte slice to a string (escape analysis fails due to the error returned by strconv.ParseInt).
Because it only works with base 10 the function is also significantly faster than strconv.ParseInt.
func ParseUintHex ¶
ParseUintHex parses a hexadecimanl representation of a uint64 from b.
The function is equivalent to calling strconv.ParseUint(string(b), 16, 64) but it prevents Go from making a memory allocation for converting a byte slice to a string (escape analysis fails due to the error returned by strconv.ParseUint).
Because it only works with base 16 the function is also significantly faster than strconv.ParseUint.
Types ¶
type Tag ¶
type Tag struct {
// Name is the field name that should be used when serializing.
Name string
// Omitempty is true if the tag had `omitempty` set.
Omitempty bool
// Omitzero is true if the tag had `omitzero` set.
Omitzero bool
}
Tag represents the result of parsing the tag of a struct field.
Source Files