package graphql
import (
"encoding/json"
"fmt"
"io"
"strconv"
)
func MarshalInt(i int) Marshaler {
return WriterFunc(func(w io.Writer) {
io.WriteString(w, strconv.Itoa(i))
})
}
func UnmarshalInt(v interface{}) (int, error) {
switch v := v.(type) {
case string:
return strconv.Atoi(v)
case int:
return v, nil
case int64:
return int(v), nil
case json.Number:
return strconv.Atoi(string(v))
default:
return 0, fmt.Errorf("%T is not an int", v)
}
}
func MarshalInt64(i int64) Marshaler {
return WriterFunc(func(w io.Writer) {
io.WriteString(w, strconv.FormatInt(i, 10))
})
}
func UnmarshalInt64(v interface{}) (int64, error) {
switch v := v.(type) {
case string:
return strconv.ParseInt(v, 10, 64)
case int:
return int64(v), nil
case int64:
return v, nil
case json.Number:
return strconv.ParseInt(string(v), 10, 64)
default:
return 0, fmt.Errorf("%T is not an int", v)
}
}
func MarshalInt32(i int32) Marshaler {
return WriterFunc(func(w io.Writer) {
io.WriteString(w, strconv.FormatInt(int64(i), 10))
})
}
func UnmarshalInt32(v interface{}) (int32, error) {
switch v := v.(type) {
case string:
iv, err := strconv.ParseInt(v, 10, 32)
if err != nil {
return 0, err
}
return int32(iv), nil
case int:
return int32(v), nil
case int64:
return int32(v), nil
case json.Number:
iv, err := strconv.ParseInt(string(v), 10, 32)
if err != nil {
return 0, err
}
return int32(iv), nil
default:
return 0, fmt.Errorf("%T is not an int", v)
}
}
