mirror of
https://github.com/duke-git/lancet.git
synced 2026-02-17 11:12:28 +08:00
Compare commits
4 Commits
5e3337a52e
...
7e85a0ed7d
| Author | SHA1 | Date | |
|---|---|---|---|
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7e85a0ed7d | ||
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2268a0312f | ||
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da84d95aa3 | ||
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48244d6711 |
@@ -411,3 +411,35 @@ func getCallerName() string {
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return fullName
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}
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// DaysBetween returns the number of days between two times.
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// Play: todo
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func DaysBetween(start, end time.Time) int {
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duration := end.Sub(start)
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days := int(duration.Hours() / 24)
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return days
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}
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// GenerateDatetimesBetween returns a slice of strings between two times.
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// layout: the format of the datetime string
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// interval: the interval between two datetimes
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// Play: todo
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func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error) {
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var result []string
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if start.After(end) {
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start, end = end, start
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}
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duration, err := time.ParseDuration(interval)
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if err != nil {
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return nil, err
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}
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for current := start; !current.After(end); current = current.Add(duration) {
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result = append(result, current.Format(layout))
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}
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return result, nil
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}
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@@ -409,16 +409,31 @@ func ExampleIsWeekend() {
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// false
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}
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// func ExampleTrackFuncTime() {
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// defer TrackFuncTime(time.Now())()
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func ExampleDaysBetween() {
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start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
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end := time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC)
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// var n int
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// for i := 0; i < 5000000; i++ {
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// n++
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// }
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result := DaysBetween(start, end)
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// fmt.Println(1)
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fmt.Println(result)
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// // Output:
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// // 1
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// }
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// Output:
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// 9
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}
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func ExampleGenerateDatetimesBetween() {
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start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
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end := time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC)
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layout := "2006-01-02 15:04:05"
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interval := "1h"
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result, err := GenerateDatetimesBetween(start, end, layout, interval)
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fmt.Println(result)
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fmt.Println(err)
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// Output:
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// [2024-09-01 00:00:00 2024-09-01 01:00:00 2024-09-01 02:00:00]
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// <nil>
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}
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@@ -419,3 +419,105 @@ func TestTrackFuncTime(t *testing.T) {
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n++
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}
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}
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func TestDaysBetween(t *testing.T) {
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t.Parallel()
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assert := internal.NewAssert(t, "TestDaysBetween")
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tests := []struct {
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start time.Time
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end time.Time
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expected int
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}{
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{
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start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC),
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expected: 9,
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},
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{
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start: time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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expected: -9,
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},
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{
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start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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expected: 0,
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},
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{
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start: time.Date(2024, time.January, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.December, 31, 0, 0, 0, 0, time.UTC),
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expected: 365,
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},
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{
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start: time.Date(2024, time.March, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.March, 31, 0, 0, 0, 0, time.UTC),
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expected: 30,
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},
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}
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for _, tt := range tests {
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result := DaysBetween(tt.start, tt.end)
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assert.Equal(tt.expected, result)
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}
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}
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func TestGenerateDatetimesBetween(t *testing.T) {
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t.Parallel()
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assert := internal.NewAssert(t, "TestGenerateDatetimesBetween")
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tests := []struct {
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start time.Time
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end time.Time
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layout string
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interval string
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expected []string
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}{
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{
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start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC),
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layout: "2006-01-02 15:04:05",
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interval: "30m",
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expected: []string{
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"2024-09-01 00:00:00",
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"2024-09-01 00:30:00",
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"2024-09-01 01:00:00",
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"2024-09-01 01:30:00",
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"2024-09-01 02:00:00",
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},
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},
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{
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start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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layout: "2006-01-02 15:04:05",
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interval: "1h",
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expected: []string{"2024-09-01 00:00:00"},
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},
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{
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start: time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC),
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end: time.Date(2024, time.September, 1, 3, 0, 0, 0, time.UTC),
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layout: "2006-01-02 15:04:05",
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interval: "2h",
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expected: []string{
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"2024-09-01 00:00:00",
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"2024-09-01 02:00:00",
|
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},
|
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},
|
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}
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|
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for _, tt := range tests {
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result, err := GenerateDatetimesBetween(tt.start, tt.end, tt.layout, tt.interval)
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assert.Equal(tt.expected, result)
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assert.IsNil(err)
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}
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t.Run("Invalid interval", func(t *testing.T) {
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_, err := GenerateDatetimesBetween(time.Now(), time.Now(), "2006-01-02 15:04:05", "invalid")
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if err == nil {
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t.Fatal("Expected error, got nil")
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}
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})
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}
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@@ -65,6 +65,8 @@ import (
|
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- [TimestampMicro](#TimestampMicro)
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- [TimestampNano](#TimestampNano)
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- [TrackFuncTime](#TrackFuncTime)
|
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- [DaysBetween](#DaysBetween)
|
||||
- [GenerateDatetimesBetween](#GenerateDatetimesBetween)
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|
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<div STYLE="page-break-after: always;"></div>
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|
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@@ -1497,4 +1499,75 @@ func main() {
|
||||
|
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fmt.Println(1) // Function main execution time: 1.460287ms
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||||
}
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```
|
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|
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### <span id="DaysBetween">DaysBetween</span>
|
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<p>返回两个日期之间的天数差。</p>
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|
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<b>函数签名:</b>
|
||||
|
||||
```go
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func DaysBetween(start, end time.Time) int
|
||||
```
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||||
|
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<b>示例:<span style="float:right;display:inline-block;">[运行]()</span></b>
|
||||
|
||||
```go
|
||||
package main
|
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|
||||
import (
|
||||
"fmt"
|
||||
"github.com/duke-git/lancet/v2/datetime"
|
||||
)
|
||||
|
||||
func main() {
|
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start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
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end := time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC)
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|
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result := datetime.DaysBetween(start, end)
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fmt.Println(result)
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|
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// Output:
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// 9
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}
|
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```
|
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|
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### <span id="GenerateDatetimesBetween">GenerateDatetimesBetween</span>
|
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|
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<p>生成从start到end的所有日期时间的字符串列表。layout参数表示时间格式,例如"2006-01-02 15:04:05",interval参数表示时间间隔,例如"1h"表示1小时,"30m"表示30分钟。</p>
|
||||
|
||||
<b>函数签名:</b>
|
||||
|
||||
```go
|
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func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error)
|
||||
```
|
||||
|
||||
<b>示例:<span style="float:right;display:inline-block;">[运行]()</span></b>
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/duke-git/lancet/v2/datetime"
|
||||
)
|
||||
|
||||
func main() {
|
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start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
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end := time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC)
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|
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layout := "2006-01-02 15:04:05"
|
||||
interval := "1h"
|
||||
|
||||
result, err := datetime.GenerateDatetimesBetween(start, end, layout, interval)
|
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|
||||
fmt.Println(result)
|
||||
fmt.Println(err)
|
||||
|
||||
// Output:
|
||||
// [2024-09-01 00:00:00 2024-09-01 01:00:00 2024-09-01 02:00:00]
|
||||
// <nil>
|
||||
}
|
||||
```
|
||||
@@ -7,6 +7,8 @@ maputil 包包括一些操作 map 的函数。
|
||||
## 源码:
|
||||
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/concurrentmap.go](https://github.com/duke-git/lancet/blob/main/maputil/concurrentmap.go)
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/orderedmap.go](https://github.com/duke-git/lancet/blob/main/maputil/orderedmap.go)
|
||||
|
||||
<div STYLE="page-break-after: always;"></div>
|
||||
|
||||
|
||||
@@ -66,6 +66,8 @@ import (
|
||||
- [TimestampMicro](#TimestampMicro)
|
||||
- [TimestampNano](#TimestampNano)
|
||||
- [TrackFuncTime](#TrackFuncTime)
|
||||
- [GenerateDatetimesBetween](#GenerateDatetimesBetween)
|
||||
|
||||
|
||||
<div STYLE="page-break-after: always;"></div>
|
||||
|
||||
@@ -1498,3 +1500,74 @@ func main() {
|
||||
fmt.Println(1) // Function main execution time: 1.460287ms
|
||||
}
|
||||
```
|
||||
|
||||
### <span id="DaysBetween">DaysBetween</span>
|
||||
|
||||
<p>Returns the number of days between two times.</p>
|
||||
|
||||
<b>Signature:</b>
|
||||
|
||||
```go
|
||||
func DaysBetween(start, end time.Time) int
|
||||
```
|
||||
|
||||
<b>Example:<span style="float:right;display:inline-block;">[Run]()</span></b>
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/duke-git/lancet/v2/datetime"
|
||||
)
|
||||
|
||||
func main() {
|
||||
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
|
||||
end := time.Date(2024, time.September, 10, 0, 0, 0, 0, time.UTC)
|
||||
|
||||
result := datetime.DaysBetween(start, end)
|
||||
|
||||
fmt.Println(result)
|
||||
|
||||
// Output:
|
||||
// 9
|
||||
}
|
||||
```
|
||||
|
||||
### <span id="GenerateDatetimesBetween">GenerateDatetimesBetween</span>
|
||||
|
||||
<p>Returns a slice of strings between two times. `layout`: the format of the datetime string.`interval`: the interval between two datetimes.</p>
|
||||
|
||||
<b>Signature:</b>
|
||||
|
||||
```go
|
||||
func GenerateDatetimesBetween(start, end time.Time, layout string, interval string) ([]string, error)
|
||||
```
|
||||
|
||||
<b>Example:<span style="float:right;display:inline-block;">[Run]()</span></b>
|
||||
|
||||
```go
|
||||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/duke-git/lancet/v2/datetime"
|
||||
)
|
||||
|
||||
func main() {
|
||||
start := time.Date(2024, time.September, 1, 0, 0, 0, 0, time.UTC)
|
||||
end := time.Date(2024, time.September, 1, 2, 0, 0, 0, time.UTC)
|
||||
|
||||
layout := "2006-01-02 15:04:05"
|
||||
interval := "1h"
|
||||
|
||||
result, err := datetime.GenerateDatetimesBetween(start, end, layout, interval)
|
||||
|
||||
fmt.Println(result)
|
||||
fmt.Println(err)
|
||||
|
||||
// Output:
|
||||
// [2024-09-01 00:00:00 2024-09-01 01:00:00 2024-09-01 02:00:00]
|
||||
// <nil>
|
||||
}
|
||||
```
|
||||
@@ -7,6 +7,9 @@ Package maputil includes some functions to manipulate map.
|
||||
## Source:
|
||||
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/map.go](https://github.com/duke-git/lancet/blob/main/maputil/map.go)
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/concurrentmap.go](https://github.com/duke-git/lancet/blob/main/maputil/concurrentmap.go)
|
||||
- [https://github.com/duke-git/lancet/blob/main/maputil/orderedmap.go](https://github.com/duke-git/lancet/blob/main/maputil/orderedmap.go)
|
||||
|
||||
|
||||
<div STYLE="page-break-after: always;"></div>
|
||||
|
||||
|
||||
184
maputil/map.go
184
maputil/map.go
@@ -473,3 +473,187 @@ func SortByKey[K constraints.Ordered, V any](m map[K]V, less func(a, b K) bool)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
var mapHandlers = map[reflect.Kind]func(reflect.Value, reflect.Value) error{
|
||||
reflect.String: convertNormal,
|
||||
reflect.Int: convertNormal,
|
||||
reflect.Int16: convertNormal,
|
||||
reflect.Int32: convertNormal,
|
||||
reflect.Int64: convertNormal,
|
||||
reflect.Uint: convertNormal,
|
||||
reflect.Uint16: convertNormal,
|
||||
reflect.Uint32: convertNormal,
|
||||
reflect.Uint64: convertNormal,
|
||||
reflect.Float32: convertNormal,
|
||||
reflect.Float64: convertNormal,
|
||||
reflect.Uint8: convertNormal,
|
||||
reflect.Int8: convertNormal,
|
||||
reflect.Struct: convertNormal,
|
||||
reflect.Complex64: convertNormal,
|
||||
reflect.Complex128: convertNormal,
|
||||
}
|
||||
|
||||
var _ = func() struct{} {
|
||||
mapHandlers[reflect.Map] = convertMap
|
||||
mapHandlers[reflect.Array] = convertSlice
|
||||
mapHandlers[reflect.Slice] = convertSlice
|
||||
return struct{}{}
|
||||
}()
|
||||
|
||||
// MapTo try to map any interface to struct or base type
|
||||
/*
|
||||
Eg:
|
||||
v := map[string]interface{}{
|
||||
"service":map[string]interface{}{
|
||||
"ip":"127.0.0.1",
|
||||
"port":1234,
|
||||
},
|
||||
version:"v1.0.01"
|
||||
}
|
||||
|
||||
type Target struct {
|
||||
Service struct {
|
||||
Ip string `json:"ip"`
|
||||
Port int `json:"port"`
|
||||
} `json:"service"`
|
||||
Ver string `json:"version"`
|
||||
}
|
||||
|
||||
var dist Target
|
||||
if err := maputil.MapTo(v,&dist); err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
|
||||
log.Println(dist)
|
||||
|
||||
*/
|
||||
// Play: https://go.dev/play/p/4K7KBEPgS5M
|
||||
func MapTo(src any, dst any) error {
|
||||
dstRef := reflect.ValueOf(dst)
|
||||
|
||||
if dstRef.Kind() != reflect.Ptr {
|
||||
return fmt.Errorf("dst is not ptr")
|
||||
}
|
||||
|
||||
dstElem := dstRef.Type().Elem()
|
||||
if dstElem.Kind() == reflect.Struct {
|
||||
srcMap := src.(map[string]interface{})
|
||||
return MapToStruct(srcMap, dst)
|
||||
}
|
||||
|
||||
dstRef = reflect.Indirect(dstRef)
|
||||
|
||||
srcRef := reflect.ValueOf(src)
|
||||
if srcRef.Kind() == reflect.Ptr || srcRef.Kind() == reflect.Interface {
|
||||
srcRef = srcRef.Elem()
|
||||
}
|
||||
|
||||
if f, ok := mapHandlers[srcRef.Kind()]; ok {
|
||||
return f(srcRef, dstRef)
|
||||
}
|
||||
|
||||
return fmt.Errorf("no implemented:%s", srcRef.Type())
|
||||
}
|
||||
|
||||
func convertNormal(src reflect.Value, dst reflect.Value) error {
|
||||
if dst.CanSet() {
|
||||
if src.Type() == dst.Type() {
|
||||
dst.Set(src)
|
||||
} else if src.CanConvert(dst.Type()) {
|
||||
dst.Set(src.Convert(dst.Type()))
|
||||
} else {
|
||||
return fmt.Errorf("can not convert:%s:%s", src.Type().String(), dst.Type().String())
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func convertSlice(src reflect.Value, dst reflect.Value) error {
|
||||
if dst.Kind() != reflect.Array && dst.Kind() != reflect.Slice {
|
||||
return fmt.Errorf("error type:%s", dst.Type().String())
|
||||
}
|
||||
l := src.Len()
|
||||
target := reflect.MakeSlice(dst.Type(), l, l)
|
||||
if dst.CanSet() {
|
||||
dst.Set(target)
|
||||
}
|
||||
for i := 0; i < l; i++ {
|
||||
srcValue := src.Index(i)
|
||||
if srcValue.Kind() == reflect.Ptr || srcValue.Kind() == reflect.Interface {
|
||||
srcValue = srcValue.Elem()
|
||||
}
|
||||
if f, ok := mapHandlers[srcValue.Kind()]; ok {
|
||||
err := f(srcValue, dst.Index(i))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func convertMap(src reflect.Value, dst reflect.Value) error {
|
||||
if src.Kind() != reflect.Map || dst.Kind() != reflect.Struct {
|
||||
if src.Kind() == reflect.Interface && dst.IsValid() {
|
||||
return convertMap(src.Elem(), dst)
|
||||
} else {
|
||||
return fmt.Errorf("src or dst type error,%s,%s", src.Type().String(), dst.Type().String())
|
||||
}
|
||||
}
|
||||
dstType := dst.Type()
|
||||
num := dstType.NumField()
|
||||
|
||||
exist := map[string]int{}
|
||||
|
||||
for i := 0; i < num; i++ {
|
||||
k := dstType.Field(i).Tag.Get("json")
|
||||
if k == "" {
|
||||
k = dstType.Field(i).Name
|
||||
}
|
||||
if strings.Contains(k, ",") {
|
||||
taglist := strings.Split(k, ",")
|
||||
if taglist[0] == "" {
|
||||
k = dstType.Field(i).Name
|
||||
} else {
|
||||
k = taglist[0]
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
exist[k] = i
|
||||
}
|
||||
|
||||
keys := src.MapKeys()
|
||||
|
||||
for _, key := range keys {
|
||||
if index, ok := exist[key.String()]; ok {
|
||||
v := dst.Field(index)
|
||||
|
||||
if v.Kind() == reflect.Struct {
|
||||
err := convertMap(src.MapIndex(key), v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
if v.CanSet() {
|
||||
if v.Type() == src.MapIndex(key).Elem().Type() {
|
||||
v.Set(src.MapIndex(key).Elem())
|
||||
} else if src.MapIndex(key).Elem().CanConvert(v.Type()) {
|
||||
v.Set(src.MapIndex(key).Elem().Convert(v.Type()))
|
||||
} else if f, ok := mapHandlers[src.MapIndex(key).Elem().Kind()]; ok && f != nil {
|
||||
err := f(src.MapIndex(key).Elem(), v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
return fmt.Errorf("error type:d(%s)s(%s)", v.Type(), src.Type())
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@@ -751,3 +751,121 @@ func TestSortByKey(t *testing.T) {
|
||||
|
||||
assert.Equal(expected2, result2)
|
||||
}
|
||||
|
||||
type (
|
||||
Person struct {
|
||||
Name string `json:"name"`
|
||||
Age int `json:"age"`
|
||||
Phone string `json:"phone"`
|
||||
Address *Address `json:"address"`
|
||||
}
|
||||
|
||||
Address struct {
|
||||
Street string `json:"street"`
|
||||
Number int `json:"number"`
|
||||
}
|
||||
)
|
||||
|
||||
func TestStructType(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
assert := internal.NewAssert(t, "TestStructType")
|
||||
|
||||
src := map[string]interface{}{
|
||||
"name": "Nothin",
|
||||
"age": 28,
|
||||
"phone": "123456789",
|
||||
"address": map[string]interface{}{
|
||||
"street": "test",
|
||||
"number": 1,
|
||||
},
|
||||
}
|
||||
|
||||
var p Person
|
||||
err := MapTo(src, &p)
|
||||
assert.IsNil(err)
|
||||
|
||||
assert.Equal(src["name"], p.Name)
|
||||
assert.Equal(src["age"], p.Age)
|
||||
assert.Equal(src["phone"], p.Phone)
|
||||
assert.Equal("test", p.Address.Street)
|
||||
assert.Equal(1, p.Address.Number)
|
||||
}
|
||||
|
||||
func TestBaseType(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
assert := internal.NewAssert(t, "TestBaseType")
|
||||
|
||||
tc := map[string]interface{}{
|
||||
"i32": -32,
|
||||
"i8": -8,
|
||||
"i16": -16,
|
||||
"i64": -64,
|
||||
"i": -1,
|
||||
"u32": 32,
|
||||
"u8": 8,
|
||||
"u16": 16,
|
||||
"u64": 64,
|
||||
"u": 1,
|
||||
"tf": true,
|
||||
"f32": 1.32,
|
||||
"f64": 1.64,
|
||||
"str": "hello mapto",
|
||||
"complex": 1 + 3i,
|
||||
}
|
||||
|
||||
type BaseType struct {
|
||||
I int `json:"i"`
|
||||
I8 int8 `json:"i8"`
|
||||
I16 int16 `json:"i16"`
|
||||
I32 int32 `json:"i32"`
|
||||
I64 int64 `json:"i64"`
|
||||
U uint `json:"u"`
|
||||
U8 uint8 `json:"u8"`
|
||||
U16 uint16 `json:"u16"`
|
||||
U32 uint32 `json:"u32"`
|
||||
U64 uint64 `json:"u64"`
|
||||
F32 float32 `json:"f32"`
|
||||
F64 float64 `json:"f64"`
|
||||
Tf bool `json:"tf"`
|
||||
Str string `json:"str"`
|
||||
Comp complex128 `json:"complex"`
|
||||
}
|
||||
|
||||
var dist BaseType
|
||||
err := MapTo(tc, &dist)
|
||||
assert.IsNil(err)
|
||||
|
||||
var number float64
|
||||
|
||||
MapTo(tc["i"], &number)
|
||||
assert.EqualValues(-1, number)
|
||||
|
||||
MapTo(tc["i8"], &number)
|
||||
assert.EqualValues(-8, number)
|
||||
|
||||
MapTo(tc["i16"], &number)
|
||||
assert.EqualValues(-16, number)
|
||||
|
||||
MapTo(tc["i32"], &number)
|
||||
assert.EqualValues(-32, number)
|
||||
|
||||
MapTo(tc["i64"], &number)
|
||||
assert.EqualValues(-64, number)
|
||||
|
||||
MapTo(tc["u"], &number)
|
||||
assert.EqualValues(1, number)
|
||||
|
||||
MapTo(tc["u8"], &number)
|
||||
assert.EqualValues(8, number)
|
||||
|
||||
MapTo(tc["u16"], &number)
|
||||
assert.EqualValues(16, number)
|
||||
|
||||
MapTo(tc["u32"], &number)
|
||||
assert.EqualValues(32, number)
|
||||
|
||||
MapTo(tc["u64"], &number)
|
||||
assert.EqualValues(64, number)
|
||||
}
|
||||
|
||||
@@ -1,191 +0,0 @@
|
||||
package maputil
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var mapHandlers = map[reflect.Kind]func(reflect.Value, reflect.Value) error{
|
||||
reflect.String: convertNormal,
|
||||
reflect.Int: convertNormal,
|
||||
reflect.Int16: convertNormal,
|
||||
reflect.Int32: convertNormal,
|
||||
reflect.Int64: convertNormal,
|
||||
reflect.Uint: convertNormal,
|
||||
reflect.Uint16: convertNormal,
|
||||
reflect.Uint32: convertNormal,
|
||||
reflect.Uint64: convertNormal,
|
||||
reflect.Float32: convertNormal,
|
||||
reflect.Float64: convertNormal,
|
||||
reflect.Uint8: convertNormal,
|
||||
reflect.Int8: convertNormal,
|
||||
reflect.Struct: convertNormal,
|
||||
reflect.Complex64: convertNormal,
|
||||
reflect.Complex128: convertNormal,
|
||||
}
|
||||
|
||||
var _ = func() struct{} {
|
||||
mapHandlers[reflect.Map] = convertMap
|
||||
mapHandlers[reflect.Array] = convertSlice
|
||||
mapHandlers[reflect.Slice] = convertSlice
|
||||
return struct{}{}
|
||||
}()
|
||||
|
||||
// MapTo try to map any interface to struct or base type
|
||||
/*
|
||||
Eg:
|
||||
v := map[string]interface{}{
|
||||
"service":map[string]interface{}{
|
||||
"ip":"127.0.0.1",
|
||||
"port":1234,
|
||||
},
|
||||
version:"v1.0.01"
|
||||
}
|
||||
|
||||
type Target struct {
|
||||
Service struct {
|
||||
Ip string `json:"ip"`
|
||||
Port int `json:"port"`
|
||||
} `json:"service"`
|
||||
Ver string `json:"version"`
|
||||
}
|
||||
|
||||
var dist Target
|
||||
if err := maputil.MapTo(v,&dist); err != nil {
|
||||
log.Println(err)
|
||||
return
|
||||
}
|
||||
|
||||
log.Println(dist)
|
||||
|
||||
*/
|
||||
// Play: https://go.dev/play/p/4K7KBEPgS5M
|
||||
func MapTo(src any, dst any) error {
|
||||
dstRef := reflect.ValueOf(dst)
|
||||
|
||||
if dstRef.Kind() != reflect.Ptr {
|
||||
return fmt.Errorf("dst is not ptr")
|
||||
}
|
||||
|
||||
dstElem := dstRef.Type().Elem()
|
||||
if dstElem.Kind() == reflect.Struct {
|
||||
srcMap := src.(map[string]interface{})
|
||||
return MapToStruct(srcMap, dst)
|
||||
}
|
||||
|
||||
dstRef = reflect.Indirect(dstRef)
|
||||
|
||||
srcRef := reflect.ValueOf(src)
|
||||
if srcRef.Kind() == reflect.Ptr || srcRef.Kind() == reflect.Interface {
|
||||
srcRef = srcRef.Elem()
|
||||
}
|
||||
|
||||
if f, ok := mapHandlers[srcRef.Kind()]; ok {
|
||||
return f(srcRef, dstRef)
|
||||
}
|
||||
|
||||
return fmt.Errorf("no implemented:%s", srcRef.Type())
|
||||
}
|
||||
|
||||
func convertNormal(src reflect.Value, dst reflect.Value) error {
|
||||
if dst.CanSet() {
|
||||
if src.Type() == dst.Type() {
|
||||
dst.Set(src)
|
||||
} else if src.CanConvert(dst.Type()) {
|
||||
dst.Set(src.Convert(dst.Type()))
|
||||
} else {
|
||||
return fmt.Errorf("can not convert:%s:%s", src.Type().String(), dst.Type().String())
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func convertSlice(src reflect.Value, dst reflect.Value) error {
|
||||
if dst.Kind() != reflect.Array && dst.Kind() != reflect.Slice {
|
||||
return fmt.Errorf("error type:%s", dst.Type().String())
|
||||
}
|
||||
l := src.Len()
|
||||
target := reflect.MakeSlice(dst.Type(), l, l)
|
||||
if dst.CanSet() {
|
||||
dst.Set(target)
|
||||
}
|
||||
for i := 0; i < l; i++ {
|
||||
srcValue := src.Index(i)
|
||||
if srcValue.Kind() == reflect.Ptr || srcValue.Kind() == reflect.Interface {
|
||||
srcValue = srcValue.Elem()
|
||||
}
|
||||
if f, ok := mapHandlers[srcValue.Kind()]; ok {
|
||||
err := f(srcValue, dst.Index(i))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func convertMap(src reflect.Value, dst reflect.Value) error {
|
||||
if src.Kind() != reflect.Map || dst.Kind() != reflect.Struct {
|
||||
if src.Kind() == reflect.Interface && dst.IsValid() {
|
||||
return convertMap(src.Elem(), dst)
|
||||
} else {
|
||||
return fmt.Errorf("src or dst type error,%s,%s", src.Type().String(), dst.Type().String())
|
||||
}
|
||||
}
|
||||
dstType := dst.Type()
|
||||
num := dstType.NumField()
|
||||
|
||||
exist := map[string]int{}
|
||||
|
||||
for i := 0; i < num; i++ {
|
||||
k := dstType.Field(i).Tag.Get("json")
|
||||
if k == "" {
|
||||
k = dstType.Field(i).Name
|
||||
}
|
||||
if strings.Contains(k, ",") {
|
||||
taglist := strings.Split(k, ",")
|
||||
if taglist[0] == "" {
|
||||
k = dstType.Field(i).Name
|
||||
} else {
|
||||
k = taglist[0]
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
exist[k] = i
|
||||
}
|
||||
|
||||
keys := src.MapKeys()
|
||||
|
||||
for _, key := range keys {
|
||||
if index, ok := exist[key.String()]; ok {
|
||||
v := dst.Field(index)
|
||||
|
||||
if v.Kind() == reflect.Struct {
|
||||
err := convertMap(src.MapIndex(key), v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
if v.CanSet() {
|
||||
if v.Type() == src.MapIndex(key).Elem().Type() {
|
||||
v.Set(src.MapIndex(key).Elem())
|
||||
} else if src.MapIndex(key).Elem().CanConvert(v.Type()) {
|
||||
v.Set(src.MapIndex(key).Elem().Convert(v.Type()))
|
||||
} else if f, ok := mapHandlers[src.MapIndex(key).Elem().Kind()]; ok && f != nil {
|
||||
err := f(src.MapIndex(key).Elem(), v)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
return fmt.Errorf("error type:d(%s)s(%s)", v.Type(), src.Type())
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
@@ -1,125 +0,0 @@
|
||||
package maputil
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/duke-git/lancet/v2/internal"
|
||||
)
|
||||
|
||||
type (
|
||||
Person struct {
|
||||
Name string `json:"name"`
|
||||
Age int `json:"age"`
|
||||
Phone string `json:"phone"`
|
||||
Address *Address `json:"address"`
|
||||
}
|
||||
|
||||
Address struct {
|
||||
Street string `json:"street"`
|
||||
Number int `json:"number"`
|
||||
}
|
||||
)
|
||||
|
||||
func TestStructType(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
assert := internal.NewAssert(t, "TestStructType")
|
||||
|
||||
src := map[string]interface{}{
|
||||
"name": "Nothin",
|
||||
"age": 28,
|
||||
"phone": "123456789",
|
||||
"address": map[string]interface{}{
|
||||
"street": "test",
|
||||
"number": 1,
|
||||
},
|
||||
}
|
||||
|
||||
var p Person
|
||||
err := MapTo(src, &p)
|
||||
assert.IsNil(err)
|
||||
|
||||
assert.Equal(src["name"], p.Name)
|
||||
assert.Equal(src["age"], p.Age)
|
||||
assert.Equal(src["phone"], p.Phone)
|
||||
assert.Equal("test", p.Address.Street)
|
||||
assert.Equal(1, p.Address.Number)
|
||||
}
|
||||
|
||||
func TestBaseType(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
assert := internal.NewAssert(t, "TestBaseType")
|
||||
|
||||
tc := map[string]interface{}{
|
||||
"i32": -32,
|
||||
"i8": -8,
|
||||
"i16": -16,
|
||||
"i64": -64,
|
||||
"i": -1,
|
||||
"u32": 32,
|
||||
"u8": 8,
|
||||
"u16": 16,
|
||||
"u64": 64,
|
||||
"u": 1,
|
||||
"tf": true,
|
||||
"f32": 1.32,
|
||||
"f64": 1.64,
|
||||
"str": "hello mapto",
|
||||
"complex": 1 + 3i,
|
||||
}
|
||||
|
||||
type BaseType struct {
|
||||
I int `json:"i"`
|
||||
I8 int8 `json:"i8"`
|
||||
I16 int16 `json:"i16"`
|
||||
I32 int32 `json:"i32"`
|
||||
I64 int64 `json:"i64"`
|
||||
U uint `json:"u"`
|
||||
U8 uint8 `json:"u8"`
|
||||
U16 uint16 `json:"u16"`
|
||||
U32 uint32 `json:"u32"`
|
||||
U64 uint64 `json:"u64"`
|
||||
F32 float32 `json:"f32"`
|
||||
F64 float64 `json:"f64"`
|
||||
Tf bool `json:"tf"`
|
||||
Str string `json:"str"`
|
||||
Comp complex128 `json:"complex"`
|
||||
}
|
||||
|
||||
var dist BaseType
|
||||
err := MapTo(tc, &dist)
|
||||
assert.IsNil(err)
|
||||
|
||||
var number float64
|
||||
|
||||
MapTo(tc["i"], &number)
|
||||
assert.EqualValues(-1, number)
|
||||
|
||||
MapTo(tc["i8"], &number)
|
||||
assert.EqualValues(-8, number)
|
||||
|
||||
MapTo(tc["i16"], &number)
|
||||
assert.EqualValues(-16, number)
|
||||
|
||||
MapTo(tc["i32"], &number)
|
||||
assert.EqualValues(-32, number)
|
||||
|
||||
MapTo(tc["i64"], &number)
|
||||
assert.EqualValues(-64, number)
|
||||
|
||||
MapTo(tc["u"], &number)
|
||||
assert.EqualValues(1, number)
|
||||
|
||||
MapTo(tc["u8"], &number)
|
||||
assert.EqualValues(8, number)
|
||||
|
||||
MapTo(tc["u16"], &number)
|
||||
assert.EqualValues(16, number)
|
||||
|
||||
MapTo(tc["u32"], &number)
|
||||
assert.EqualValues(32, number)
|
||||
|
||||
MapTo(tc["u64"], &number)
|
||||
assert.EqualValues(64, number)
|
||||
}
|
||||
Reference in New Issue
Block a user