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46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
// Copyright 2019-present Facebook Inc. All rights reserved.
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// This source code is licensed under the Apache 2.0 license found
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// in the LICENSE file in the root directory of this source tree.
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package graphson
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import (
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"fmt"
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"unsafe"
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jsoniter "github.com/json-iterator/go"
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)
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// EncoderOfError returns a value encoder which always fails to encode.
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func (encodeExtension) EncoderOfError(format string, args ...any) jsoniter.ValEncoder {
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return decoratorOfError(format, args...)
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}
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// DecoderOfError returns a value decoder which always fails to decode.
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func (decodeExtension) DecoderOfError(format string, args ...any) jsoniter.ValDecoder {
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return decoratorOfError(format, args...)
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}
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func decoratorOfError(format string, args ...any) errorCodec {
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err := fmt.Errorf(format, args...)
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return errorCodec{err}
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}
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type errorCodec struct{ error }
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func (ec errorCodec) Encode(_ unsafe.Pointer, stream *jsoniter.Stream) {
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if stream.Error == nil {
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stream.Error = ec.error
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}
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}
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func (errorCodec) IsEmpty(unsafe.Pointer) bool {
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return false
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}
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func (ec errorCodec) Decode(_ unsafe.Pointer, iter *jsoniter.Iterator) {
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if iter.Error == nil {
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iter.Error = ec.error
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}
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}
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