Add ToBoolSlice()

Fixes #1
This commit is contained in:
M@ 2016-09-19 16:26:41 -04:00 committed by Bjørn Erik Pedersen
parent fa673d63c1
commit 60e7a69a42
3 changed files with 41 additions and 0 deletions

View File

@ -67,6 +67,11 @@ func ToSlice(i interface{}) []interface{} {
return v return v
} }
func ToBoolSlice(i interface{}) []bool {
v, _ := ToBoolSliceE(i)
return v
}
func ToStringSlice(i interface{}) []string { func ToStringSlice(i interface{}) []string {
v, _ := ToStringSliceE(i) v, _ := ToStringSliceE(i)
return v return v

View File

@ -141,6 +141,10 @@ func TestSlices(t *testing.T) {
assert.Equal(t, []int{1, 3}, ToIntSlice([]interface{}{1.2, 3.2})) assert.Equal(t, []int{1, 3}, ToIntSlice([]interface{}{1.2, 3.2}))
assert.Equal(t, []int{2, 3}, ToIntSlice([]string{"2", "3"})) assert.Equal(t, []int{2, 3}, ToIntSlice([]string{"2", "3"}))
assert.Equal(t, []int{2, 3}, ToIntSlice([2]string{"2", "3"})) assert.Equal(t, []int{2, 3}, ToIntSlice([2]string{"2", "3"}))
assert.Equal(t, []bool{true, false, true}, ToBoolSlice([]bool{true, false, true}))
assert.Equal(t, []bool{true, false, true}, ToBoolSlice([]interface{}{true, false, true}))
assert.Equal(t, []bool{true, false, true}, ToBoolSlice([]int{1,0,1}))
assert.Equal(t, []bool{true, false, true}, ToBoolSlice([]string{"true","false","true"}))
} }
func TestToBool(t *testing.T) { func TestToBool(t *testing.T) {

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@ -422,6 +422,38 @@ func ToSliceE(i interface{}) ([]interface{}, error) {
} }
} }
// ToBoolSliceE casts an empty interface to a []bool.
func ToBoolSliceE(i interface{}) ([]bool, error) {
jww.DEBUG.Println("ToBoolSliceE called on type:", reflect.TypeOf(i))
if i == nil {
return []bool{}, fmt.Errorf("Unable to Cast %#v to []bool", i)
}
switch v := i.(type) {
case []bool:
return v, nil
}
kind := reflect.TypeOf(i).Kind()
switch kind {
case reflect.Slice, reflect.Array:
s := reflect.ValueOf(i)
a := make([]bool, s.Len())
for j := 0; j < s.Len(); j++ {
val, err := ToBoolE(s.Index(j).Interface())
if err != nil {
return []bool{}, fmt.Errorf("Unable to Cast %#v to []bool", i)
}
a[j] = val
}
return a, nil
default:
return []bool{}, fmt.Errorf("Unable to Cast %#v to []bool", i)
}
}
// ToStringSliceE casts an empty interface to a []string. // ToStringSliceE casts an empty interface to a []string.
func ToStringSliceE(i interface{}) ([]string, error) { func ToStringSliceE(i interface{}) ([]string, error) {
jww.TRACE.Println("ToStringSliceE called on type:", reflect.TypeOf(i)) jww.TRACE.Println("ToStringSliceE called on type:", reflect.TypeOf(i))