mirror of https://github.com/spf13/cast.git
Add support for map of int64 and map of int
This commit is contained in:
Theofanis Despoudis
Bjørn Erik Pedersen
parent
efb632f0f6
commit
4dd38b8b57
12
cast.go
12
cast.go
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@ -122,6 +122,18 @@ func ToStringMapBool(i interface{}) map[string]bool {
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return v
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}
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// ToStringMapInt casts an interface to a map[string]int type.
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func ToStringMapInt(i interface{}) map[string]int {
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v, _ := ToStringMapIntE(i)
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return v
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}
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// ToStringMapInt64 casts an interface to a map[string]int64 type.
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func ToStringMapInt64(i interface{}) map[string]int64 {
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v, _ := ToStringMapInt64E(i)
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return v
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}
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// ToStringMap casts an interface to a map[string]interface{} type.
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func ToStringMap(i interface{}) map[string]interface{} {
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v, _ := ToStringMapE(i)
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77
cast_test.go
77
cast_test.go
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@ -821,6 +821,83 @@ func TestToStringMapBoolE(t *testing.T) {
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}
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}
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func TestToStringMapIntE(t *testing.T) {
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tests := []struct {
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input interface{}
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expect map[string]int
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iserr bool
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}{
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{map[interface{}]interface{}{"v1": 1, "v2": 222}, map[string]int{"v1": 1, "v2": 222}, false},
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{map[string]interface{}{"v1": 342, "v2": 5141}, map[string]int{"v1": 342, "v2": 5141}, false},
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{map[string]int{"v1": 33, "v2": 88}, map[string]int{"v1": 33, "v2": 88}, false},
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{map[string]int32{"v1": int32(33), "v2": int32(88)}, map[string]int{"v1": 33, "v2": 88}, false},
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{map[string]uint16{"v1": uint16(33), "v2": uint16(88)}, map[string]int{"v1": 33, "v2": 88}, false},
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{map[string]float64{"v1": float64(8.22), "v2": float64(43.32)}, map[string]int{"v1": 8, "v2": 43}, false},
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{`{"v1": 67, "v2": 56}`, map[string]int{"v1": 67, "v2": 56}, false},
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// errors
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{nil, nil, true},
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{testing.T{}, nil, true},
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{"", nil, true},
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}
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for i, test := range tests {
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errmsg := fmt.Sprintf("i = %d", i) // assert helper message
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v, err := ToStringMapIntE(test.input)
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if test.iserr {
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assert.Error(t, err, errmsg)
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continue
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}
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assert.NoError(t, err, errmsg)
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assert.Equal(t, test.expect, v, errmsg)
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// Non-E test
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v = ToStringMapInt(test.input)
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assert.Equal(t, test.expect, v, errmsg)
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}
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}
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func TestToStringMapInt64E(t *testing.T) {
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tests := []struct {
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input interface{}
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expect map[string]int64
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iserr bool
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}{
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{map[interface{}]interface{}{"v1": int32(8), "v2": int32(888)}, map[string]int64{"v1": int64(8), "v2": int64(888)}, false},
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{map[string]interface{}{"v1": int64(45), "v2": int64(67)}, map[string]int64{"v1": 45, "v2": 67}, false},
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{map[string]int64{"v1": 33, "v2": 88}, map[string]int64{"v1": 33, "v2": 88}, false},
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{map[string]int{"v1": 33, "v2": 88}, map[string]int64{"v1": 33, "v2": 88}, false},
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{map[string]int32{"v1": int32(33), "v2": int32(88)}, map[string]int64{"v1": 33, "v2": 88}, false},
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{map[string]uint16{"v1": uint16(33), "v2": uint16(88)}, map[string]int64{"v1": 33, "v2": 88}, false},
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{map[string]float64{"v1": float64(8.22), "v2": float64(43.32)}, map[string]int64{"v1": 8, "v2": 43}, false},
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{`{"v1": 67, "v2": 56}`, map[string]int64{"v1": 67, "v2": 56}, false},
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// errors
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{nil, nil, true},
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{testing.T{}, nil, true},
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{"", nil, true},
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}
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for i, test := range tests {
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errmsg := fmt.Sprintf("i = %d", i) // assert helper message
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v, err := ToStringMapInt64E(test.input)
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if test.iserr {
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assert.Error(t, err, errmsg)
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continue
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}
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assert.NoError(t, err, errmsg)
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assert.Equal(t, test.expect, v, errmsg)
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// Non-E test
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v = ToStringMapInt64(test.input)
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assert.Equal(t, test.expect, v, errmsg)
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}
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}
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func TestToStringMapStringE(t *testing.T) {
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var stringMapString = map[string]string{"key 1": "value 1", "key 2": "value 2", "key 3": "value 3"}
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var stringMapInterface = map[string]interface{}{"key 1": "value 1", "key 2": "value 2", "key 3": "value 3"}
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81
caste.go
81
caste.go
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@ -990,6 +990,87 @@ func ToStringMapE(i interface{}) (map[string]interface{}, error) {
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}
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}
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// ToStringMapIntE casts an interface to a map[string]int{} type.
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func ToStringMapIntE(i interface{}) (map[string]int, error) {
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var m = map[string]int{}
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if i == nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int", i, i)
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}
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switch v := i.(type) {
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case map[interface{}]interface{}:
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for k, val := range v {
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m[ToString(k)] = ToInt(val)
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}
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return m, nil
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case map[string]interface{}:
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for k, val := range v {
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m[k] = ToInt(val)
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}
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return m, nil
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case map[string]int:
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return v, nil
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case string:
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err := jsonStringToObject(v, &m)
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return m, err
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}
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if reflect.TypeOf(i).Kind() != reflect.Map {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int", i, i)
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}
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mVal := reflect.ValueOf(m)
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v := reflect.ValueOf(i)
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for _, keyVal := range v.MapKeys() {
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val, err := ToIntE(v.MapIndex(keyVal).Interface())
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if err != nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int", i, i)
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}
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mVal.SetMapIndex(keyVal, reflect.ValueOf(val))
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}
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return m, nil
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}
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// ToStringMapInt64E casts an interface to a map[string]int64{} type.
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func ToStringMapInt64E(i interface{}) (map[string]int64, error) {
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var m = map[string]int64{}
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if i == nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int64", i, i)
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}
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switch v := i.(type) {
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case map[interface{}]interface{}:
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for k, val := range v {
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m[ToString(k)] = ToInt64(val)
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}
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return m, nil
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case map[string]interface{}:
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for k, val := range v {
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m[k] = ToInt64(val)
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}
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return m, nil
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case map[string]int64:
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return v, nil
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case string:
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err := jsonStringToObject(v, &m)
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return m, err
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}
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if reflect.TypeOf(i).Kind() != reflect.Map {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int64", i, i)
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}
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mVal := reflect.ValueOf(m)
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v := reflect.ValueOf(i)
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for _, keyVal := range v.MapKeys() {
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val, err := ToInt64E(v.MapIndex(keyVal).Interface())
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if err != nil {
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return m, fmt.Errorf("unable to cast %#v of type %T to map[string]int64", i, i)
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}
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mVal.SetMapIndex(keyVal, reflect.ValueOf(val))
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}
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return m, nil
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}
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// ToSliceE casts an interface to a []interface{} type.
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func ToSliceE(i interface{}) ([]interface{}, error) {
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var s []interface{}
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