convert

Documentation

Overview

Package convert ...

Description : 任意类型之间的相互转换

Author : go_developer@163.com<白茶清欢>

Date : 2021-02-23 10:23 下午

Index

• Variables
• func ConvertAssign(dest, src interface{}) error
• func ToString(src interface{}) string
• type RawBytes
• type Scanner
• type Value

Variables

var Bool boolType

Functions

func ConvertAssign

func ConvertAssign(dest, src interface{}) error

convertAssign copies to dest the value in src, converting it if possible. An error is returned if the copy would result in loss of information. dest should be a pointer type.

func ToString

func ToString(src interface{}) string

Types

type RawBytes

type RawBytes []byte

RawBytes is a byte slice that holds a reference to memory owned by the database itself. After a Scan into a RawBytes, the slice is only valid until the next call to Next, Scan, or Close.

type Scanner

type Scanner interface {
	// Scan assigns a value from a database driver.
	//
	// The src value will be of one of the following types:
	//
	//    int64
	//    float64
	//    bool
	//    []byte
	//    string
	//    time.Time
	//    nil - for NULL values
	//
	// An error should be returned if the value cannot be stored
	// without loss of information.
	//
	// Reference types such as []byte are only valid until the next call to Scan
	// and should not be retained. Their underlying memory is owned by the driver.
	// If retention is necessary, copy their values before the next call to Scan.
	Scan(src interface{}) error
}

type Value

type Value interface{}

Value is a value that drivers must be able to handle. It is either nil, a type handled by a database driver's NamedValueChecker interface, or an instance of one of these types:

int64
float64
bool
[]byte
string
time.Time