~evanj/cms

ref: 27de4d9c907e2258a828fbfcda8f22b910df0f63 cms/vendor/github.com/kr/pretty/zero.go -rw-r--r-- 992 bytes
27de4d9cEvan M Jones Feat(spaces): Added the ability to copy an entire space. 1 year, 3 months ago
                                                                                
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
package pretty

import (
	"reflect"
)

func nonzero(v reflect.Value) bool {
	switch v.Kind() {
	case reflect.Bool:
		return v.Bool()
	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		return v.Int() != 0
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		return v.Uint() != 0
	case reflect.Float32, reflect.Float64:
		return v.Float() != 0
	case reflect.Complex64, reflect.Complex128:
		return v.Complex() != complex(0, 0)
	case reflect.String:
		return v.String() != ""
	case reflect.Struct:
		for i := 0; i < v.NumField(); i++ {
			if nonzero(getField(v, i)) {
				return true
			}
		}
		return false
	case reflect.Array:
		for i := 0; i < v.Len(); i++ {
			if nonzero(v.Index(i)) {
				return true
			}
		}
		return false
	case reflect.Map, reflect.Interface, reflect.Slice, reflect.Ptr, reflect.Chan, reflect.Func:
		return !v.IsNil()
	case reflect.UnsafePointer:
		return v.Pointer() != 0
	}
	return true
}