42 lines
		
	
	
		
			672 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			672 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package bytes
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import (
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	"errors"
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)
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type Marshaler struct{}
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type Message struct {
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	Header map[string]string
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	Body   []byte
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}
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func (n Marshaler) Marshal(v interface{}) ([]byte, error) {
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	switch v.(type) {
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	case *[]byte:
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		ve := v.(*[]byte)
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		return *ve, nil
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	case []byte:
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		return v.([]byte), nil
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	case *Message:
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		return v.(*Message).Body, nil
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	}
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	return nil, errors.New("invalid message")
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}
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func (n Marshaler) Unmarshal(d []byte, v interface{}) error {
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	switch v.(type) {
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	case *[]byte:
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		ve := v.(*[]byte)
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		*ve = d
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	case *Message:
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		ve := v.(*Message)
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		ve.Body = d
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	}
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	return errors.New("invalid message")
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}
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func (n Marshaler) String() string {
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	return "bytes"
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}
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