GaoreGo/cast
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cast json.Number

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This commit is contained in:
Yan Mikhailov 2019-03-19 12:04:41 +02:00
parent 8c9545af88
commit b0445ca892
3 changed files with 122 additions and 1 deletions
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27
cast_test.go
View File

@ -6,6 +6,7 @@
package cast
import (
"encoding/json"
"fmt"
"html/template"
"testing"
@ -30,6 +31,7 @@ func TestToUintE(t *testing.T) {
{uint16(8), 8, false},
{uint32(8), 8, false},
{uint64(8), 8, false},
{json.Number("8"), 8, false},
{float32(8.31), 8, false},
{float64(8.31), 8, false},
{true, 1, false},
@ -45,6 +47,7 @@ func TestToUintE(t *testing.T) {
{float32(-8.31), 0, true},
{float64(-8.31), 0, true},
{"-8", 0, true},
{json.Number("-8"), 0, true},
{"test", 0, true},
{testing.T{}, 0, true},
}
@ -83,6 +86,7 @@ func TestToUint64E(t *testing.T) {
{uint16(8), 8, false},
{uint32(8), 8, false},
{uint64(8), 8, false},
{json.Number("8"), 8, false},
{float32(8.31), 8, false},
{float64(8.31), 8, false},
{true, 1, false},
@ -98,6 +102,7 @@ func TestToUint64E(t *testing.T) {
{float32(-8.31), 0, true},
{float64(-8.31), 0, true},
{"-8", 0, true},
{json.Number("-8"), 0, true},
{"test", 0, true},
{testing.T{}, 0, true},
}
@ -136,12 +141,14 @@ func TestToUint32E(t *testing.T) {
{uint16(8), 8, false},
{uint32(8), 8, false},
{uint64(8), 8, false},
{json.Number("8"), 8, false},
{float32(8.31), 8, false},
{float64(8.31), 8, false},
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{nil, 0, false},
// errors
{int(-8), 0, true},
{int8(-8), 0, true},
{int16(-8), 0, true},
@ -150,7 +157,7 @@ func TestToUint32E(t *testing.T) {
{float32(-8.31), 0, true},
{float64(-8.31), 0, true},
{"-8", 0, true},
// errors
{json.Number("-8"), 0, true},
{"test", 0, true},
{testing.T{}, 0, true},
}
@ -189,6 +196,7 @@ func TestToUint16E(t *testing.T) {
{uint16(8), 8, false},
{uint32(8), 8, false},
{uint64(8), 8, false},
{json.Number("8"), 8, false},
{float32(8.31), 8, false},
{float64(8.31), 8, false},
{true, 1, false},
@ -204,6 +212,7 @@ func TestToUint16E(t *testing.T) {
{float32(-8.31), 0, true},
{float64(-8.31), 0, true},
{"-8", 0, true},
{json.Number("-8"), 0, true},
{"test", 0, true},
{testing.T{}, 0, true},
}
@ -242,6 +251,7 @@ func TestToUint8E(t *testing.T) {
{uint16(8), 8, false},
{uint32(8), 8, false},
{uint64(8), 8, false},
{json.Number("8"), 8, false},
{float32(8.31), 8, false},
{float64(8.31), 8, false},
{true, 1, false},
@ -257,6 +267,7 @@ func TestToUint8E(t *testing.T) {
{float32(-8.31), 0, true},
{float64(-8.31), 0, true},
{"-8", 0, true},
{json.Number("-8"), 0, true},
{"test", 0, true},
{testing.T{}, 0, true},
}
@ -300,9 +311,11 @@ func TestToIntE(t *testing.T) {
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{json.Number("8"), 8, false},
{nil, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -345,9 +358,11 @@ func TestToInt64E(t *testing.T) {
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{json.Number("8"), 8, false},
{nil, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -390,9 +405,11 @@ func TestToInt32E(t *testing.T) {
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{json.Number("8"), 8, false},
{nil, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -435,9 +452,11 @@ func TestToInt16E(t *testing.T) {
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{json.Number("8"), 8, false},
{nil, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -480,9 +499,11 @@ func TestToInt8E(t *testing.T) {
{true, 1, false},
{false, 0, false},
{"8", 8, false},
{json.Number("8"), 8, false},
{nil, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -523,10 +544,12 @@ func TestToFloat64E(t *testing.T) {
{float32(8), 8, false},
{float64(8.31), 8.31, false},
{"8", 8, false},
{json.Number("8.31"), 8.31, false},
{true, 1, false},
{false, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}
@ -567,10 +590,12 @@ func TestToFloat32E(t *testing.T) {
{float32(8.31), 8.31, false},
{float64(8.31), 8.31, false},
{"8", 8, false},
{json.Number("8.31"), 8.31, false},
{true, 1, false},
{false, 0, false},
// errors
{"test", 0, true},
{json.Number("test"), 0, true},
{testing.T{}, 0, true},
}

85
caste.go
View File

@ -10,6 +10,7 @@ import (
"errors"
"fmt"
"html/template"
"math"
"reflect"
"strconv"
"strings"
@ -131,6 +132,12 @@ func ToFloat64E(i interface{}) (float64, error) {
return 1, nil
}
return 0, nil
case Float64er:
v, err := s.Float64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i)
}
return v, nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to float64", i, i)
}
@ -176,6 +183,15 @@ func ToFloat32E(i interface{}) (float32, error) {
return 1, nil
}
return 0, nil
case Float64er:
v, err := s.Float64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i)
}
if v > math.MaxFloat32 {
return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i)
}
return float32(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to float32", i, i)
}
@ -223,6 +239,12 @@ func ToInt64E(i interface{}) (int64, error) {
return 0, nil
case nil:
return 0, nil
case Int64er:
v, err := s.Int64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to int64", i, i)
}
return v, nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to int64", i, i)
}
@ -270,6 +292,15 @@ func ToInt32E(i interface{}) (int32, error) {
return 0, nil
case nil:
return 0, nil
case Int64er:
v, err := s.Int64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to int32", i, i)
}
if v > math.MaxInt32 {
return 0, fmt.Errorf("unable to cast %#v of type %T to int32", i, i)
}
return int32(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to int32", i, i)
}
@ -317,6 +348,15 @@ func ToInt16E(i interface{}) (int16, error) {
return 0, nil
case nil:
return 0, nil
case Int64er:
v, err := s.Int64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to int16", i, i)
}
if v > math.MaxInt16 {
return 0, fmt.Errorf("unable to cast %#v of type %T to int16", i, i)
}
return int16(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to int16", i, i)
}
@ -364,6 +404,15 @@ func ToInt8E(i interface{}) (int8, error) {
return 0, nil
case nil:
return 0, nil
case Int64er:
v, err := s.Int64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to int8", i, i)
}
if v > math.MaxInt8 {
return 0, fmt.Errorf("unable to cast %#v of type %T to int8", i, i)
}
return int8(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to int8", i, i)
}
@ -411,6 +460,12 @@ func ToIntE(i interface{}) (int, error) {
return 0, nil
case nil:
return 0, nil
case Int64er:
v, err := s.Int64()
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to int", i, i)
}
return int(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to int", i, i)
}
@ -479,6 +534,12 @@ func ToUintE(i interface{}) (uint, error) {
return 0, nil
case nil:
return 0, nil
case fmt.Stringer:
v, err := strconv.ParseUint(s.String(), 10, 64)
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to uint", i, i)
}
return uint(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to uint", i, i)
}
@ -547,6 +608,12 @@ func ToUint64E(i interface{}) (uint64, error) {
return 0, nil
case nil:
return 0, nil
case fmt.Stringer:
v, err := strconv.ParseUint(s.String(), 10, 64)
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to uint64", i, i)
}
return v, nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to uint64", i, i)
}
@ -615,6 +682,12 @@ func ToUint32E(i interface{}) (uint32, error) {
return 0, nil
case nil:
return 0, nil
case fmt.Stringer:
v, err := strconv.ParseUint(s.String(), 10, 32)
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to uint32", i, i)
}
return uint32(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to uint32", i, i)
}
@ -683,6 +756,12 @@ func ToUint16E(i interface{}) (uint16, error) {
return 0, nil
case nil:
return 0, nil
case fmt.Stringer:
v, err := strconv.ParseUint(s.String(), 10, 16)
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to uint16", i, i)
}
return uint16(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to uint16", i, i)
}
@ -751,6 +830,12 @@ func ToUint8E(i interface{}) (uint8, error) {
return 0, nil
case nil:
return 0, nil
case fmt.Stringer:
v, err := strconv.ParseUint(s.String(), 10, 8)
if err != nil {
return 0, fmt.Errorf("unable to cast %#v of type %T to uint8", i, i)
}
return uint8(v), nil
default:
return 0, fmt.Errorf("unable to cast %#v of type %T to uint8", i, i)
}

11
types.go Normal file
View File

@ -0,0 +1,11 @@
package cast
type (
Float64er interface {
Float64() (float64, error)
}
Int64er interface {
Int64() (int64, error)
}
)