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31 lines
556 B
Go
31 lines
556 B
Go
package graphql
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import (
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"encoding/json"
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"fmt"
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"io"
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"strconv"
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)
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func MarshalFloat(f float64) Marshaler {
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return WriterFunc(func(w io.Writer) {
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io.WriteString(w, fmt.Sprintf("%g", f))
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})
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}
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func UnmarshalFloat(v interface{}) (float64, error) {
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switch v := v.(type) {
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case string:
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return strconv.ParseFloat(v, 64)
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case int:
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return float64(v), nil
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case int64:
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return float64(v), nil
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case float64:
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return v, nil
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case json.Number:
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return strconv.ParseFloat(string(v), 64)
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default:
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return 0, fmt.Errorf("%T is not an float", v)
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}
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}
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