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// Copyright [2019] LinkedIn Corp. Licensed under the Apache License, Version
// 2.0 (the "License"); you may not use this file except in compliance with the
// License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
package goavro
import (
"bytes"
"errors"
"fmt"
"io"
)
func booleanNativeFromBinary(buf []byte) (interface{}, []byte, error) {
if len(buf) < 1 {
return nil, nil, io.ErrShortBuffer
}
var b byte
b, buf = buf[0], buf[1:]
switch b {
case byte(0):
return false, buf, nil
case byte(1):
return true, buf, nil
default:
return nil, nil, fmt.Errorf("cannot decode binary boolean: expected: Go byte(0) or byte(1); received: byte(%d)", b)
}
}
func booleanBinaryFromNative(buf []byte, datum interface{}) ([]byte, error) {
value, ok := datum.(bool)
if !ok {
return nil, fmt.Errorf("cannot encode binary boolean: expected: Go bool; received: %T", datum)
}
var b byte
if value {
b = 1
}
return append(buf, b), nil
}
func booleanNativeFromTextual(buf []byte) (interface{}, []byte, error) {
if len(buf) < 4 {
return nil, nil, fmt.Errorf("cannot decode textual boolean: %s", io.ErrShortBuffer)
}
if bytes.Equal(buf[:4], []byte("true")) {
return true, buf[4:], nil
}
if len(buf) < 5 {
return nil, nil, fmt.Errorf("cannot decode textual boolean: %s", io.ErrShortBuffer)
}
if bytes.Equal(buf[:5], []byte("false")) {
return false, buf[5:], nil
}
return nil, nil, errors.New("expected false or true")
}
func booleanTextualFromNative(buf []byte, datum interface{}) ([]byte, error) {
value, ok := datum.(bool)
if !ok {
return nil, fmt.Errorf("boolean: expected: Go bool; received: %T", datum)
}
if value {
return append(buf, "true"...), nil
}
return append(buf, "false"...), nil
}
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