/
Buffer.go
97 lines (82 loc) · 2.92 KB
/
Buffer.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
*
* https://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. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package utils
// WithReaderWriterArgs is a marker interface for reader args supplied by the builders
type WithReaderWriterArgs interface {
WithReaderArgs
WithWriterArgs
}
// WithAdditionalStringRepresentation can be used by e.g. enums to supply an additional string representation
func WithAdditionalStringRepresentation(stringRepresentation string) WithReaderWriterArgs {
return withAdditionalStringRepresentation{readerWriterArg: readerWriterArg{WithReaderArgs: readerArg{}, WithWriterArgs: writerArg{}}, stringRepresentation: stringRepresentation}
}
// WithRenderAsList indicates that an element can be rendered as list
func WithRenderAsList(renderAsList bool) WithReaderWriterArgs {
return withRenderAsList{readerWriterArg: readerWriterArg{WithReaderArgs: readerArg{}, WithWriterArgs: writerArg{}}, renderAsList: renderAsList}
}
// WithEncoding specifies an encoding
func WithEncoding(encoding string) WithReaderWriterArgs {
return withEncoding{readerWriterArg: readerWriterArg{WithReaderArgs: readerArg{}, WithWriterArgs: writerArg{}}, encoding: encoding}
}
///////////////////////////////////////
///////////////////////////////////////
//
// Internal section
//
type readerWriterArg struct {
WithReaderArgs
WithWriterArgs
}
func (r readerWriterArg) isReaderArgs() bool {
return r.WithReaderArgs != nil
}
func (r readerWriterArg) isWriterArgs() bool {
return r.WithWriterArgs != nil
}
type withAdditionalStringRepresentation struct {
readerWriterArg
stringRepresentation string
}
type withRenderAsList struct {
readerWriterArg
renderAsList bool
}
type withEncoding struct {
readerWriterArg
encoding string
}
//
// Internal section
//
///////////////////////////////////////
///////////////////////////////////////
func UpcastReaderArgs(args ...WithReaderArgs) []WithReaderWriterArgs {
result := make([]WithReaderWriterArgs, len(args))
for i, arg := range args {
result[i] = readerWriterArg{arg, writerArg{}}
}
return result
}
func UpcastWriterArgs(args ...WithWriterArgs) []WithReaderWriterArgs {
result := make([]WithReaderWriterArgs, len(args))
for i, arg := range args {
result[i] = readerWriterArg{readerArg{}, arg}
}
return result
}