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package graphql
import (
"fmt"
"math"
)
// NullID is an ID that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullID struct {
Value *ID
Set bool
}
func (NullID) ImplementsGraphQLType(name string) bool {
return name == "ID"
}
func (s *NullID) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
s.Value = new(ID)
return s.Value.UnmarshalGraphQL(input)
}
func (s *NullID) Nullable() {}
// NullString is a string that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullString struct {
Value *string
Set bool
}
func (NullString) ImplementsGraphQLType(name string) bool {
return name == "String"
}
func (s *NullString) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
switch v := input.(type) {
case string:
s.Value = &v
return nil
default:
return fmt.Errorf("wrong type for String: %T", v)
}
}
func (s *NullString) Nullable() {}
// NullBool is a boolean that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullBool struct {
Value *bool
Set bool
}
func (NullBool) ImplementsGraphQLType(name string) bool {
return name == "Boolean"
}
func (s *NullBool) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
switch v := input.(type) {
case bool:
s.Value = &v
return nil
default:
return fmt.Errorf("wrong type for Boolean: %T", v)
}
}
func (s *NullBool) Nullable() {}
// NullInt is an int that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullInt struct {
Value *int32
Set bool
}
func (NullInt) ImplementsGraphQLType(name string) bool {
return name == "Int"
}
func (s *NullInt) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
switch v := input.(type) {
case int32:
s.Value = &v
return nil
case float64:
coerced := int32(v)
if v < math.MinInt32 || v > math.MaxInt32 || float64(coerced) != v {
return fmt.Errorf("not a 32-bit integer")
}
s.Value = &coerced
return nil
default:
return fmt.Errorf("wrong type for Int: %T", v)
}
}
func (s *NullInt) Nullable() {}
// NullFloat is a float that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullFloat struct {
Value *float64
Set bool
}
func (NullFloat) ImplementsGraphQLType(name string) bool {
return name == "Float"
}
func (s *NullFloat) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
switch v := input.(type) {
case float64:
s.Value = &v
return nil
case int32:
coerced := float64(v)
s.Value = &coerced
return nil
case int:
coerced := float64(v)
s.Value = &coerced
return nil
default:
return fmt.Errorf("wrong type for Float: %T", v)
}
}
func (s *NullFloat) Nullable() {}
// NullTime is a time value that can be null. Use it in input structs to
// differentiate a value explicitly set to null from an omitted value.
// When the value is defined (either null or a value) Set is true.
type NullTime struct {
Value *Time
Set bool
}
func (NullTime) ImplementsGraphQLType(name string) bool {
return name == "Time"
}
func (s *NullTime) UnmarshalGraphQL(input interface{}) error {
s.Set = true
if input == nil {
return nil
}
s.Value = new(Time)
return s.Value.UnmarshalGraphQL(input)
}
func (s *NullTime) Nullable() {}
|
