PrettyJsonWriter.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Serialization/JsonWriter.h"
 
namespace UE::Private
{
 
struct TPrettyJsonPrintPolicySingleNewLine
    : public TPrettyJsonPrintPolicy<UTF8CHAR>
{
    static inline void WriteLineTerminator(FArchive* Stream)
    {
        TJsonPrintPolicy<UTF8CHAR>::WriteString(Stream, FStringView(TEXT("\n")));
    }
};
 
// Extending TJsonWriter to get some control over whitespace and tabbing:
struct FPrettyJsonWriter : public TJsonWriter<UTF8CHAR, TPrettyJsonPrintPolicySingleNewLine>
{
    using Super = TJsonWriter<UTF8CHAR, TPrettyJsonPrintPolicySingleNewLine>;
    using PrintPolicy = TPrettyJsonPrintPolicySingleNewLine;
    using CharType = UTF8CHAR;
 
    FPrettyJsonWriter(FArchive* const InStream, int32 InitialIndentLevel);
 
    static TSharedRef<FPrettyJsonWriter> Create(FArchive* const InStream, int32 InitialIndent = 0);
 
    // useful for composing blocks of json
    void WriteJsonRaw(FAnsiStringView Value);
 
    void WriteValueInline(FText Value);
    void WriteValueInline(const FString& Value);
    void WriteValueInline(FAnsiStringView UTF8Value);
    void WriteValueInline(FUtf8StringView UTF8Value);
    void WriteValueInline(int16 Value);
    void WriteValueInline(uint16 Value);
    void WriteValueInline(uint32 Value);
    template<typename T>
    void WriteValueInline(T Value)
    {
        check(CanWriteValueWithoutIdentifier());
        WriteCommaAndNewlineIfNeeded();
        PreviousTokenWritten = WriteValueOnly(Value);
    }
    void WriteUtf8Value(FStringView Identifier, FUtf8StringView UTF8Value);
 
    void WriteObjectStartInline();
    void WriteArrayStartInline();
    void WriteNewlineAndArrayEnd();
    void WriteLineTerminator();
    void HACK_SetPreviousTokenWritten();
    void HACK_SetPreviousTokenWrittenSquareClose();
 
    void WriteCommaAndNewlineIfNeeded();
};
 
}