darling-dyld/dyld3/JSONWriter.h
2023-04-29 11:24:58 -07:00

152 lines
4.0 KiB
C++

/*
* Copyright (c) 2017 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#ifndef __JSON_WRITER_H__
#define __JSON_WRITER_H__
#include <iostream>
#include "JSON.h"
namespace dyld3 {
namespace json {
static inline std::string hex(uint64_t value) {
char buff[64];
sprintf(buff, "0x%llX", value);
return buff;
}
static inline std::string hex4(uint64_t value) {
char buff[64];
sprintf(buff, "0x%04llX", value);
return buff;
}
static inline std::string hex8(uint64_t value) {
char buff[64];
sprintf(buff, "0x%08llX", value);
return buff;
}
static inline std::string decimal(uint64_t value) {
char buff[64];
sprintf(buff, "%llu", value);
return buff;
}
static inline void indentBy(uint32_t spaces, std::ostream& out) {
for (uint32_t i=0; i < spaces; ++i) {
out << " ";
}
}
static inline void printJSON(const Node& node, uint32_t indent = 0, std::ostream& out = std::cout)
{
if ( !node.map.empty() ) {
out << "{";
bool needComma = false;
for (const auto& entry : node.map) {
if ( needComma )
out << ",";
out << "\n";
indentBy(indent+2, out);
out << "\"" << entry.first << "\": ";
printJSON(entry.second, indent+2, out);
needComma = true;
}
out << "\n";
indentBy(indent, out);
out << "}";
}
else if ( !node.array.empty() ) {
out << "[";
bool needComma = false;
for (const auto& entry : node.array) {
if ( needComma )
out << ",";
out << "\n";
indentBy(indent+2, out);
printJSON(entry, indent+2, out);
needComma = true;
}
out << "\n";
indentBy(indent, out);
out << "]";
}
else {
auto &value = node.value;
switch (node.type) {
case NodeValueType::Default:
case NodeValueType::String:
if (value.find('"') == std::string::npos) {
out << "\"" << value << "\"";
} else {
std::string escapedString;
escapedString.reserve(value.size());
for (char c : value) {
if (c == '"')
escapedString += '\\';
escapedString += c;
}
out << "\"" << escapedString << "\"";
}
break;
case NodeValueType::RawValue:
out << value;
break;
}
}
if ( indent == 0 )
out << "\n";
}
static inline void streamArrayBegin(bool &needsComma, std::ostream& out = std::cout)
{
out << "[";
needsComma = false;
}
static inline void streamArrayNode(bool &needsComma, Node &node, std::ostream& out = std::cout)
{
if (needsComma)
out << ",";
out << "\n";
indentBy(2, out);
printJSON(node, 2, out);
needsComma = true;
}
static inline void streamArrayEnd(bool &needsComma, std::ostream& out = std::cout)
{
if (needsComma)
out << "\n";
out << "]\n";
}
} // namespace json
} // namespace dyld3
#endif // __JSON_WRITER_H__