/* auto-generated on Thu Mar  5 10:30:07 PST 2020. Do not edit! */
/* begin file include/simdjson.h */
#ifndef SIMDJSON_H
#define SIMDJSON_H

/* begin file include/simdjson/compiler_check.h */
#ifndef SIMDJSON_COMPILER_CHECK_H
#define SIMDJSON_COMPILER_CHECK_H

#ifndef __cplusplus
#error simdjson requires a C++ compiler
#endif

#ifndef SIMDJSON_CPLUSPLUS
#if defined(_MSVC_LANG) && !defined(__clang__)
#define SIMDJSON_CPLUSPLUS (_MSC_VER == 1900 ? 201103L : _MSVC_LANG)
#else
#define SIMDJSON_CPLUSPLUS __cplusplus
#endif
#endif

#if (SIMDJSON_CPLUSPLUS < 201703L)
#error simdjson requires a compiler compliant with the C++17 standard
#endif

#endif // SIMDJSON_COMPILER_CHECK_H
/* end file include/simdjson/compiler_check.h */

// Public API
/* begin file include/simdjson/simdjson_version.h */
// /include/simdjson/simdjson_version.h automatically generated by release.py,
// do not change by hand
#ifndef SIMDJSON_SIMDJSON_VERSION_H
#define SIMDJSON_SIMDJSON_VERSION_H
#define SIMDJSON_VERSION 0.2.1
namespace simdjson {
enum {
  SIMDJSON_VERSION_MAJOR = 0,
  SIMDJSON_VERSION_MINOR = 2,
  SIMDJSON_VERSION_REVISION = 1
};
}
#endif // SIMDJSON_SIMDJSON_VERSION_H
/* end file include/simdjson/simdjson_version.h */
/* begin file include/simdjson/error.h */
#ifndef SIMDJSON_ERROR_H
#define SIMDJSON_ERROR_H

#include <string>

namespace simdjson {

enum error_code {
  SUCCESS = 0,
  SUCCESS_AND_HAS_MORE, //No errors and buffer still has more data
  CAPACITY,    // This parser can't support a document that big
  MEMALLOC,    // Error allocating memory, most likely out of memory
  TAPE_ERROR,  // Something went wrong while writing to the tape (stage 2), this
               // is a generic error
  DEPTH_ERROR, // Your document exceeds the user-specified depth limitation
  STRING_ERROR,    // Problem while parsing a string
  T_ATOM_ERROR,    // Problem while parsing an atom starting with the letter 't'
  F_ATOM_ERROR,    // Problem while parsing an atom starting with the letter 'f'
  N_ATOM_ERROR,    // Problem while parsing an atom starting with the letter 'n'
  NUMBER_ERROR,    // Problem while parsing a number
  UTF8_ERROR,      // the input is not valid UTF-8
  UNINITIALIZED,     // unknown error, or uninitialized document
  EMPTY,           // no structural element found
  UNESCAPED_CHARS, // found unescaped characters in a string.
  UNCLOSED_STRING, // missing quote at the end
  UNSUPPORTED_ARCHITECTURE, // unsupported architecture
  INCORRECT_TYPE, // JSON element has a different type than user expected
  NUMBER_OUT_OF_RANGE, // JSON number does not fit in 64 bits
  NO_SUCH_FIELD, // JSON field not found in object
  UNEXPECTED_ERROR // indicative of a bug in simdjson
};

const std::string &error_message(error_code error) noexcept;

struct invalid_json : public std::exception {
  invalid_json(error_code _error) : error{_error} { }
  const char *what() const noexcept { return error_message(error).c_str(); }
  error_code error;
};

// TODO these are deprecated, remove
using ErrorValues = error_code;
inline const std::string &error_message(int error) noexcept { return error_message(error_code(error)); }

} // namespace simdjson

#endif // SIMDJSON_ERROR_H
/* end file include/simdjson/error.h */
/* begin file include/simdjson/padded_string.h */
#ifndef SIMDJSON_PADDING_STRING_H
#define SIMDJSON_PADDING_STRING_H
/* begin file include/simdjson/portability.h */
#ifndef SIMDJSON_PORTABILITY_H
#define SIMDJSON_PORTABILITY_H

#include <cstddef>
#include <cstdint>
#include <cstdlib>
#ifdef _MSC_VER
#include <iso646.h>
#endif

#if defined(__x86_64__) || defined(_M_AMD64)
#define IS_X86_64 1
#endif
#if defined(__aarch64__) || defined(_M_ARM64)
#define IS_ARM64 1
#endif

// this is almost standard?
#undef STRINGIFY_IMPLEMENTATION_
#undef STRINGIFY
#define STRINGIFY_IMPLEMENTATION_(a) #a
#define STRINGIFY(a) STRINGIFY_IMPLEMENTATION_(a)

// we are going to use runtime dispatch
#ifdef IS_X86_64
#ifdef __clang__
// clang does not have GCC push pop
// warning: clang attribute push can't be used within a namespace in clang up
// til 8.0 so TARGET_REGION and UNTARGET_REGION must be *outside* of a
// namespace.
#define TARGET_REGION(T)                                                       \
  _Pragma(STRINGIFY(                                                           \
      clang attribute push(__attribute__((target(T))), apply_to = function)))
#define UNTARGET_REGION _Pragma("clang attribute pop")
#elif defined(__GNUC__)
// GCC is easier
#define TARGET_REGION(T)                                                       \
  _Pragma("GCC push_options") _Pragma(STRINGIFY(GCC target(T)))
#define UNTARGET_REGION _Pragma("GCC pop_options")
#endif // clang then gcc

#endif // x86

// Default target region macros don't do anything.
#ifndef TARGET_REGION
#define TARGET_REGION(T)
#define UNTARGET_REGION
#endif

// under GCC and CLANG, we use these two macros
#define TARGET_HASWELL TARGET_REGION("avx2,bmi,pclmul,lzcnt")
#define TARGET_WESTMERE TARGET_REGION("sse4.2,pclmul")
#define TARGET_ARM64

// Threading is disabled
#undef SIMDJSON_THREADS_ENABLED
// Is threading enabled?
#if defined(BOOST_HAS_THREADS) || defined(_REENTRANT) || defined(_MT)
#define SIMDJSON_THREADS_ENABLED
#endif

#if defined(__clang__)
#define NO_SANITIZE_UNDEFINED __attribute__((no_sanitize("undefined")))
#elif defined(__GNUC__)
#define NO_SANITIZE_UNDEFINED __attribute__((no_sanitize_undefined))
#else
#define NO_SANITIZE_UNDEFINED
#endif

#ifdef _MSC_VER
#include <intrin.h> // visual studio
#endif

#ifdef _MSC_VER
#define simdjson_strcasecmp _stricmp
#else
#define simdjson_strcasecmp strcasecmp
#endif

namespace simdjson {
// portable version of  posix_memalign
static inline void *aligned_malloc(size_t alignment, size_t size) {
  void *p;
#ifdef _MSC_VER
  p = _aligned_malloc(size, alignment);
#elif defined(__MINGW32__) || defined(__MINGW64__)
  p = __mingw_aligned_malloc(size, alignment);
#else
  // somehow, if this is used before including "x86intrin.h", it creates an
  // implicit defined warning.
  if (posix_memalign(&p, alignment, size) != 0) {
    return nullptr;
  }
#endif
  return p;
}

static inline char *aligned_malloc_char(size_t alignment, size_t size) {
  return (char *)aligned_malloc(alignment, size);
}

static inline void aligned_free(void *mem_block) {
  if (mem_block == nullptr) {
    return;
  }
#ifdef _MSC_VER
  _aligned_free(mem_block);
#elif defined(__MINGW32__) || defined(__MINGW64__)
  __mingw_aligned_free(mem_block);
#else
  free(mem_block);
#endif
}

static inline void aligned_free_char(char *mem_block) {
  aligned_free((void *)mem_block);
}
} // namespace simdjson
#endif // SIMDJSON_PORTABILITY_H
/* end file include/simdjson/portability.h */
/* begin file include/simdjson/common_defs.h */
#ifndef SIMDJSON_COMMON_DEFS_H
#define SIMDJSON_COMMON_DEFS_H

#include <cassert>

// we support documents up to 4GB
#define SIMDJSON_MAXSIZE_BYTES 0xFFFFFFFF

// the input buf should be readable up to buf + SIMDJSON_PADDING
// this is a stopgap; there should be a better description of the
// main loop and its behavior that abstracts over this
// See https://github.com/lemire/simdjson/issues/174
#define SIMDJSON_PADDING 32

#if defined(__GNUC__)
// Marks a block with a name so that MCA analysis can see it.
#define BEGIN_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-BEGIN " #name);
#define END_DEBUG_BLOCK(name) __asm volatile("# LLVM-MCA-END " #name);
#define DEBUG_BLOCK(name, block) BEGIN_DEBUG_BLOCK(name); block; END_DEBUG_BLOCK(name);
#else
#define BEGIN_DEBUG_BLOCK(name)
#define END_DEBUG_BLOCK(name)
#define DEBUG_BLOCK(name, block)
#endif

#if !defined(_MSC_VER) && !defined(SIMDJSON_NO_COMPUTED_GOTO)
// Implemented using Labels as Values which works in GCC and CLANG (and maybe
// also in Intel's compiler), but won't work in MSVC.
#define SIMDJSON_USE_COMPUTED_GOTO
#endif

// Align to N-byte boundary
#define ROUNDUP_N(a, n) (((a) + ((n)-1)) & ~((n)-1))
#define ROUNDDOWN_N(a, n) ((a) & ~((n)-1))

#define ISALIGNED_N(ptr, n) (((uintptr_t)(ptr) & ((n)-1)) == 0)

#ifdef _MSC_VER
#define really_inline __forceinline
#define never_inline __declspec(noinline)

#define UNUSED
#define WARN_UNUSED

#ifndef likely
#define likely(x) x
#endif
#ifndef unlikely
#define unlikely(x) x
#endif


#else


#define really_inline inline __attribute__((always_inline, unused))
#define never_inline inline __attribute__((noinline, unused))

#define UNUSED __attribute__((unused))
#define WARN_UNUSED __attribute__((warn_unused_result))

#ifndef likely
#define likely(x) __builtin_expect(!!(x), 1)
#endif
#ifndef unlikely
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif

#endif // MSC_VER

#endif // SIMDJSON_COMMON_DEFS_H
/* end file include/simdjson/common_defs.h */

#include <cstring>
#include <memory>
#include <string>


namespace simdjson {
// low-level function to allocate memory with padding so we can read past the
// "length" bytes safely. if you must provide a pointer to some data, create it
// with this function: length is the max. size in bytes of the string caller is
// responsible to free the memory (free(...))
inline char *allocate_padded_buffer(size_t length) noexcept {
  // we could do a simple malloc
  // return (char *) malloc(length + SIMDJSON_PADDING);
  // However, we might as well align to cache lines...
  size_t totalpaddedlength = length + SIMDJSON_PADDING;
  char *padded_buffer = aligned_malloc_char(64, totalpaddedlength);
#ifndef NDEBUG
  if (padded_buffer == nullptr) {
    return nullptr;
  }
#endif // NDEBUG
  memset(padded_buffer + length, 0, totalpaddedlength - length);
  return padded_buffer;
} // allocate_padded_buffer

// Simple string with padded allocation.
// We deliberately forbid copies, users should rely on swap or move
// constructors.
struct padded_string final {

  explicit padded_string() noexcept : viable_size(0), data_ptr(nullptr) {}

  explicit padded_string(size_t length) noexcept
      : viable_size(length), data_ptr(allocate_padded_buffer(length)) {
    if (data_ptr != nullptr)
      data_ptr[length] = '\0'; // easier when you need a c_str
  }

  explicit padded_string(const char *data, size_t length) noexcept
      : viable_size(length), data_ptr(allocate_padded_buffer(length)) {
    if ((data != nullptr) and (data_ptr != nullptr)) {
      memcpy(data_ptr, data, length);
      data_ptr[length] = '\0'; // easier when you need a c_str
    }
  }

  // note: do not pass std::string arguments by value
  padded_string(const std::string & str_ ) noexcept
      : viable_size(str_.size()), data_ptr(allocate_padded_buffer(str_.size())) {
    if (data_ptr != nullptr) {
      memcpy(data_ptr, str_.data(), str_.size());
      data_ptr[str_.size()] = '\0'; // easier when you need a c_str
    }
  }

  // note: do pass std::string_view arguments by value
  padded_string(std::string_view sv_) noexcept
      : viable_size(sv_.size()), data_ptr(allocate_padded_buffer(sv_.size())) {
    if (data_ptr != nullptr) {
      memcpy(data_ptr, sv_.data(), sv_.size());
      data_ptr[sv_.size()] = '\0'; // easier when you need a c_str
    }
  }

  padded_string(padded_string &&o) noexcept
      : viable_size(o.viable_size), data_ptr(o.data_ptr) {
    o.data_ptr = nullptr; // we take ownership
  }

  padded_string &operator=(padded_string &&o) {
    aligned_free_char(data_ptr);
    data_ptr = o.data_ptr;
    viable_size = o.viable_size;
    o.data_ptr = nullptr; // we take ownership
    o.viable_size = 0;
    return *this;
  }

  void swap(padded_string &o) {
    size_t tmp_viable_size = viable_size;
    char *tmp_data_ptr = data_ptr;
    viable_size = o.viable_size;
    data_ptr = o.data_ptr;
    o.data_ptr = tmp_data_ptr;
    o.viable_size = tmp_viable_size;
  }

  ~padded_string() {
      aligned_free_char(data_ptr);
  }

  size_t size() const  { return viable_size; }

  size_t length() const  { return viable_size; }

  char *data() const  { return data_ptr; }

private:
  padded_string &operator=(const padded_string &o) = delete;
  padded_string(const padded_string &o) = delete;

  size_t viable_size;
  char *data_ptr{nullptr};

}; // padded_string

} // namespace simdjson

#endif
/* end file include/simdjson/common_defs.h */
/* begin file include/simdjson/implementation.h */
#ifndef SIMDJSON_IMPLEMENTATION_H
#define SIMDJSON_IMPLEMENTATION_H

#include <optional>
#include <string>
#include <atomic>
#include <vector>
/* begin file include/simdjson/document.h */
#ifndef SIMDJSON_DOCUMENT_H
#define SIMDJSON_DOCUMENT_H

#include <cstring>
#include <memory>
#include <string>
#include <limits>
/* begin file include/simdjson/simdjson.h */
/**
 * @file
 * @deprecated We'll be removing this file so it isn't confused with the top level simdjson.h
 */
#ifndef SIMDJSON_SIMDJSON_H
#define SIMDJSON_SIMDJSON_H


#endif // SIMDJSON_H
/* end file include/simdjson/simdjson.h */

#define JSON_VALUE_MASK 0x00FFFFFFFFFFFFFF
#define DEFAULT_MAX_DEPTH 1024 // a JSON document with a depth exceeding 1024 is probably de facto invalid

namespace simdjson {

template<size_t max_depth> class document_iterator;

/**
 * A parsed JSON document.
 *
 * This class cannot be copied, only moved, to avoid unintended allocations.
 */
class document {
public:
  /**
   * Create a document container with zero capacity.
   *
   * The parser will allocate capacity as needed.
   */
  document() noexcept=default;
  ~document() noexcept=default;

  /**
   * Take another document's buffers.
   *
   * @param other The document to take. Its capacity is zeroed and it is invalidated.
   */
  document(document &&other) noexcept = default;
  document(const document &) = delete; // Disallow copying
  /**
   * Take another document's buffers.
   *
   * @param other The document to take. Its capacity is zeroed.
   */
  document &operator=(document &&other) noexcept = default;
  document &operator=(const document &) = delete; // Disallow copying

  // Nested classes
  class element;
  class array;
  class object;
  class key_value_pair;
  class parser;

  template<typename T=element>
  class element_result;
  class doc_result;
  class doc_ref_result;

  // Nested classes. See definitions later in file.
  using iterator = document_iterator<DEFAULT_MAX_DEPTH>;

  /**
   * Get the root element of this document as a JSON array.
   */
  element root() const noexcept;
  /**
   * Get the root element of this document as a JSON array.
   */
  element_result<array> as_array() const noexcept;
  /**
   * Get the root element of this document as a JSON object.
   */
  element_result<object> as_object() const noexcept;
  /**
   * Get the root element of this document.
   */
  operator element() const noexcept;
  /**
   * Read the root element of this document as a JSON array.
   *
   * @return The JSON array.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an array
   */
  operator array() const noexcept(false);
  /**
   * Read this element as a JSON object (key/value pairs).
   *
   * @return The JSON object.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an object
   */
  operator object() const noexcept(false);

  /**
   * Get the value associated with the given key.
   *
   * The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with the given key, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   *         - UNEXPECTED_TYPE if the document is not an object
   */
  element_result<element> operator[](const std::string_view &s) const noexcept;
  /**
   * Get the value associated with the given key.
   *
   * The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with this field, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   *         - UNEXPECTED_TYPE if the document is not an object
   */
  element_result<element> operator[](const char *s) const noexcept;

  /**
   * Print this JSON to a std::ostream.
   *
   * @param os the stream to output to.
   * @param max_depth the maximum JSON depth to output.
   * @return false if the tape is likely wrong (e.g., you did not parse a valid JSON).
   */
  bool print_json(std::ostream &os, size_t max_depth=DEFAULT_MAX_DEPTH) const noexcept;
  /**
   * Dump the raw tape for debugging.
   *
   * @param os the stream to output to.
   * @return false if the tape is likely wrong (e.g., you did not parse a valid JSON).
   */
  bool dump_raw_tape(std::ostream &os) const noexcept;

  /**
   * Parse a JSON document and return a reference to it.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If realloc_if_needed is true,
   * it is assumed that the buffer does *not* have enough padding, and it is reallocated, enlarged
   * and copied before parsing.
   *
   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
   *            realloc_if_needed is true.
   * @param len The length of the JSON.
   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return the document, or an error if the JSON is invalid.
   */
  inline static doc_result parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept;

  /**
   * Parse a JSON document.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If realloc_if_needed is true,
   * it is assumed that the buffer does *not* have enough padding, and it is reallocated, enlarged
   * and copied before parsing.
   *
   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
   *            realloc_if_needed is true.
   * @param len The length of the JSON.
   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline static doc_result parse(const char *buf, size_t len, bool realloc_if_needed = true) noexcept;

  /**
   * Parse a JSON document.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If `str.capacity() - str.size()
   * < SIMDJSON_PADDING`, the string will be copied to a string with larger capacity before parsing.
   *
   * @param s The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, or
   *          a new string will be created with the extra padding.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline static doc_result parse(const std::string &s) noexcept;

  /**
   * Parse a JSON document.
   *
   * @param s The JSON to parse.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline static doc_result parse(const padded_string &s) noexcept;

  // We do not want to allow implicit conversion from C string to std::string.
  doc_ref_result parse(const char *buf, bool realloc_if_needed = true) noexcept = delete;

  std::unique_ptr<uint64_t[]> tape;
  std::unique_ptr<uint8_t[]> string_buf;// should be at least byte_capacity

private:
  class tape_ref;
  enum class tape_type;
  bool set_capacity(size_t len);
}; // class document

/**
 * A parsed, *owned* document, or an error if the parse failed.
 *
 *     document &doc = document::parse(json);
 *
 * Returns an owned `document`. When the doc_result (or the document retrieved from it) goes out of
 * scope, the document's memory is deallocated.
 *
 * ## Error Codes vs. Exceptions
 *
 * This result type allows the user to pick whether to use exceptions or not.
 *
 * Use like this to avoid exceptions:
 *
 *     auto [doc, error] = document::parse(json);
 *     if (error) { exit(1); }
 *
 * Use like this if you'd prefer to use exceptions:
 *
 *     document doc = document::parse(json);
 *
 */
class document::doc_result {
public:
  /**
   * The parsed document. This is *invalid* if there is an error.
   */
  document doc;
  /**
   * The error code, or SUCCESS (0) if there is no error.
   */
  error_code error;

  /**
   * Return the document, or throw an exception if it is invalid.
   *
   * @return the document.
   * @exception invalid_json if the document is invalid or there was an error parsing it.
   */
  operator document() noexcept(false);

  /**
   * Get the error message for the error.
   */
  const std::string &get_error_message() const noexcept;

  ~doc_result() noexcept=default;

private:
  doc_result(document &&_doc, error_code _error) noexcept;
  doc_result(document &&_doc) noexcept;
  doc_result(error_code _error) noexcept;
  friend class document;
}; // class document::doc_result

/**
 * A parsed document reference, or an error if the parse failed.
 *
 *     document &doc = document::parse(json);
 *
 * ## Document Ownership
 *
 * The `document &` refers to an internal document the parser reuses on each `parse()` call. It will
 * become invalidated on the next `parse()`.
 *
 * This is more efficient for common cases where documents are parsed and used one at a time. If you
 * need to keep the document around longer, you may *take* it from the parser by casting it:
 *
 *     document doc = parser.parse(); // take ownership
 *
 * If you do this, the parser will automatically allocate a new document on the next `parse()` call.
 *
 * ## Error Codes vs. Exceptions
 *
 * This result type allows the user to pick whether to use exceptions or not.
 *
 * Use like this to avoid exceptions:
 *
 *     auto [doc, error] = parser.parse(json);
 *     if (error) { exit(1); }
 *
 * Use like this if you'd prefer to use exceptions:
 *
 *     document &doc = document::parse(json);
 *
 */
class document::doc_ref_result {
public:
  /**
   * The parsed document. This is *invalid* if there is an error.
   */
  document &doc;
  /**
   * The error code, or SUCCESS (0) if there is no error.
   */
  error_code error;

  /**
   * A reference to the document, or throw an exception if it is invalid.
   *
   * @return the document.
   * @exception invalid_json if the document is invalid or there was an error parsing it.
   */
  operator document&() noexcept(false);

  /**
   * Get the error message for the error.
   */
  const std::string &get_error_message() const noexcept;

  ~doc_ref_result()=default;

private:
  doc_ref_result(document &_doc, error_code _error) noexcept;
  friend class document::parser;
}; // class document::doc_ref_result

/**
  * The possible types in the tape. Internal only.
  */
enum class document::tape_type {
  ROOT = 'r',
  START_ARRAY = '[',
  START_OBJECT = '{',
  END_ARRAY = ']',
  END_OBJECT = '}',
  STRING = '"',
  INT64 = 'l',
  UINT64 = 'u',
  DOUBLE = 'd',
  TRUE_VALUE = 't',
  FALSE_VALUE = 'f',
  NULL_VALUE = 'n'
};

/**
 * A reference to an element on the tape. Internal only.
 */
class document::tape_ref {
protected:
  really_inline tape_ref() noexcept;
  really_inline tape_ref(const document *_doc, size_t _json_index) noexcept;
  inline size_t after_element() const noexcept;
  really_inline tape_type type() const noexcept;
  really_inline uint64_t tape_value() const noexcept;
  template<typename T>
  really_inline T next_tape_value() const noexcept;

  /** The document this element references. */
  const document *doc;

  /** The index of this element on `doc.tape[]` */
  size_t json_index;

  friend class document::key_value_pair;
};

/**
 * A JSON element.
 *
 * References an element in a JSON document, representing a JSON null, boolean, string, number,
 * array or object.
 */
class document::element : protected document::tape_ref {
public:
  /** Whether this element is a json `null`. */
  really_inline bool is_null() const noexcept;
  /** Whether this is a JSON `true` or `false` */
  really_inline bool is_bool() const noexcept;
  /** Whether this is a JSON number (e.g. 1, 1.0 or 1e2) */
  really_inline bool is_number() const noexcept;
  /** Whether this is a JSON integer (e.g. 1 or -1, but *not* 1.0 or 1e2) */
  really_inline bool is_integer() const noexcept;
  /** Whether this is a JSON string (e.g. "abc") */
  really_inline bool is_string() const noexcept;
  /** Whether this is a JSON array (e.g. []) */
  really_inline bool is_array() const noexcept;
  /** Whether this is a JSON array (e.g. []) */
  really_inline bool is_object() const noexcept;

  /**
   * Read this element as a boolean (json `true` or `false`).
   *
   * @return The boolean value, or:
   *         - UNEXPECTED_TYPE error if the JSON element is not a boolean
   */
  inline element_result<bool> as_bool() const noexcept;

  /**
   * Read this element as a null-terminated string.
   *
   * Does *not* convert other types to a string; requires that the JSON type of the element was
   * an actual string.
   *
   * @return A `string_view` into the string, or:
   *         - UNEXPECTED_TYPE error if the JSON element is not a string
   */
  inline element_result<const char *> as_c_str() const noexcept;

  /**
   * Read this element as a C++ string_view (string with length).
   *
   * Does *not* convert other types to a string; requires that the JSON type of the element was
   * an actual string.
   *
   * @return A `string_view` into the string, or:
   *         - UNEXPECTED_TYPE error if the JSON element is not a string
   */
  inline element_result<std::string_view> as_string() const noexcept;

  /**
   * Read this element as an unsigned integer.
   *
   * @return The uninteger value, or:
   *         - UNEXPECTED_TYPE if the JSON element is not an integer
   *         - NUMBER_OUT_OF_RANGE if the integer doesn't fit in 64 bits or is negative
   */
  inline element_result<uint64_t> as_uint64_t() const noexcept;

  /**
   * Read this element as a signed integer.
   *
   * @return The integer value, or:
   *         - UNEXPECTED_TYPE if the JSON element is not an integer
   *         - NUMBER_OUT_OF_RANGE if the integer doesn't fit in 64 bits
   */
  inline element_result<int64_t> as_int64_t() const noexcept;

  /**
   * Read this element as a floating point value.
   *
   * @return The double value, or:
   *         - UNEXPECTED_TYPE if the JSON element is not a number
   */
  inline element_result<double> as_double() const noexcept;

  /**
   * Read this element as a JSON array.
   *
   * @return The array value, or:
   *         - UNEXPECTED_TYPE if the JSON element is not an array
   */
  inline element_result<document::array> as_array() const noexcept;

  /**
   * Read this element as a JSON object (key/value pairs).
   *
   * @return The object value, or:
   *         - UNEXPECTED_TYPE if the JSON element is not an object
   */
  inline element_result<document::object> as_object() const noexcept;

  /**
   * Read this element as a boolean.
   *
   * @return The boolean value
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not a boolean.
   */
  inline operator bool() const noexcept(false);

  /**
   * Read this element as a null-terminated string.
   *
   * Does *not* convert other types to a string; requires that the JSON type of the element was
   * an actual string.
   *
   * @return The string value.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not a string.
   */
  inline explicit operator const char*() const noexcept(false);

  /**
   * Read this element as a null-terminated string.
   *
   * Does *not* convert other types to a string; requires that the JSON type of the element was
   * an actual string.
   *
   * @return The string value.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not a string.
   */
  inline operator std::string_view() const noexcept(false);

  /**
   * Read this element as an unsigned integer.
   *
   * @return The integer value.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an integer
   * @exception invalid_json(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits or is negative
   */
  inline operator uint64_t() const noexcept(false);
  /**
   * Read this element as an signed integer.
   *
   * @return The integer value.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an integer
   * @exception invalid_json(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits
   */
  inline operator int64_t() const noexcept(false);
  /**
   * Read this element as an double.
   *
   * @return The double value.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not a number
   * @exception invalid_json(NUMBER_OUT_OF_RANGE) if the integer doesn't fit in 64 bits or is negative
   */
  inline operator double() const noexcept(false);
  /**
   * Read this element as a JSON array.
   *
   * @return The JSON array.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an array
   */
  inline operator document::array() const noexcept(false);
  /**
   * Read this element as a JSON object (key/value pairs).
   *
   * @return The JSON object.
   * @exception invalid_json(UNEXPECTED_TYPE) if the JSON element is not an object
   */
  inline operator document::object() const noexcept(false);

  /**
   * Get the value associated with the given key.
   *
   * The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with this field, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   *         - UNEXPECTED_TYPE if the document is not an object
   */
  inline element_result<element> operator[](const std::string_view &s) const noexcept;
  /**
   * Get the value associated with the given key.
   *
   * Note: The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with this field, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   *         - UNEXPECTED_TYPE if the document is not an object
   */
  inline element_result<element> operator[](const char *s) const noexcept;

private:
  really_inline element() noexcept;
  really_inline element(const document *_doc, size_t _json_index) noexcept;
  friend class document;
  template<typename T>
  friend class document::element_result;
};

/**
 * Represents a JSON array.
 */
class document::array : protected document::tape_ref {
public:
  class iterator : tape_ref {
  public:
    /**
     * Get the actual value
     */
    inline element operator*() const noexcept;
    /**
     * Get the next value.
     *
     * Part of the std::iterator interface.
     */
    inline void operator++() noexcept;
    /**
     * Check if these values come from the same place in the JSON.
     *
     * Part of the std::iterator interface.
     */
    inline bool operator!=(const iterator& other) const noexcept;
  private:
    really_inline iterator(const document *_doc, size_t _json_index) noexcept;
    friend class array;
  };

  /**
   * Return the first array element.
   *
   * Part of the std::iterable interface.
   */
  inline iterator begin() const noexcept;
  /**
   * One past the last array element.
   *
   * Part of the std::iterable interface.
   */
  inline iterator end() const noexcept;

private:
  really_inline array() noexcept;
  really_inline array(const document *_doc, size_t _json_index) noexcept;
  friend class document::element;
  template<typename T>
  friend class document::element_result;
};

/**
 * Represents a JSON object.
 */
class document::object : protected document::tape_ref {
public:
  class iterator : protected document::tape_ref {
  public:
    /**
     * Get the actual key/value pair
     */
    inline const document::key_value_pair operator*() const noexcept;
    /**
     * Get the next key/value pair.
     *
     * Part of the std::iterator interface.
     */
    inline void operator++() noexcept;
    /**
     * Check if these key value pairs come from the same place in the JSON.
     *
     * Part of the std::iterator interface.
     */
    inline bool operator!=(const iterator& other) const noexcept;
    /**
     * Get the key of this key/value pair.
     */
    inline std::string_view key() const noexcept;
    /**
     * Get the key of this key/value pair.
     */
    inline const char *key_c_str() const noexcept;
    /**
     * Get the value of this key/value pair.
     */
    inline element value() const noexcept;
  private:
    really_inline iterator(const document *_doc, size_t _json_index) noexcept;
    friend class document::object;
  };

  /**
   * Return the first key/value pair.
   *
   * Part of the std::iterable interface.
   */
  inline iterator begin() const noexcept;
  /**
   * One past the last key/value pair.
   *
   * Part of the std::iterable interface.
   */
  inline iterator end() const noexcept;

  /**
   * Get the value associated with the given key.
   *
   * The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with this field, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   */
  inline element_result<element> operator[](const std::string_view &s) const noexcept;
  /**
   * Get the value associated with the given key.
   *
   * Note: The key will be matched against **unescaped** JSON:
   *
   *   document::parse(R"({ "a\n": 1 })")["a\n"].as_uint64_t().value == 1
   *   document::parse(R"({ "a\n": 1 })")["a\\n"].as_uint64_t().error == NO_SUCH_FIELD
   *
   * @return The value associated with this field, or:
   *         - NO_SUCH_FIELD if the field does not exist in the object
   */
  inline element_result<element> operator[](const char *s) const noexcept;

private:
  really_inline object() noexcept;
  really_inline object(const document *_doc, size_t _json_index) noexcept;
  friend class document::element;
  template<typename T>
  friend class document::element_result;
};

/**
 * Key/value pair in an object.
 */
class document::key_value_pair {
public:
  std::string_view key;
  document::element value;

private:
  really_inline key_value_pair(std::string_view _key, document::element _value) noexcept;
  friend class document::object;
};


/**
 * The result of a JSON navigation or conversion, or an error (if the navigation or conversion
 * failed). Allows the user to pick whether to use exceptions or not.
 *
 * Use like this to avoid exceptions:
 *
 *     auto [str, error] = document::parse(json).root().as_string();
 *     if (error) { exit(1); }
 *     cout << str;
 *
 * Use like this if you'd prefer to use exceptions:
 *
 *     string str = document::parse(json).root();
 *     cout << str;
 *
 */
template<typename T>
class document::element_result {
public:
  /** The value */
  T value;
  /** The error code (or 0 if there is no error) */
  error_code error;

  inline operator T() const noexcept(false);

private:
  really_inline element_result(T value) noexcept;
  really_inline element_result(error_code _error) noexcept;
  friend class document;
  friend class element;
};

// Add exception-throwing navigation / conversion methods to element_result<element>
template<>
class document::element_result<document::element> {
public:
  /** The value */
  element value;
  /** The error code (or 0 if there is no error) */
  error_code error;

  /** Whether this is a JSON `null` */
  inline element_result<bool> is_null() const noexcept;
  inline element_result<bool> as_bool() const noexcept;
  inline element_result<std::string_view> as_string() const noexcept;
  inline element_result<const char *> as_c_str() const noexcept;
  inline element_result<uint64_t> as_uint64_t() const noexcept;
  inline element_result<int64_t> as_int64_t() const noexcept;
  inline element_result<double> as_double() const noexcept;
  inline element_result<array> as_array() const noexcept;
  inline element_result<object> as_object() const noexcept;

  inline operator bool() const noexcept(false);
  inline explicit operator const char*() const noexcept(false);
  inline operator std::string_view() const noexcept(false);
  inline operator uint64_t() const noexcept(false);
  inline operator int64_t() const noexcept(false);
  inline operator double() const noexcept(false);
  inline operator array() const noexcept(false);
  inline operator object() const noexcept(false);

  inline element_result<element> operator[](const std::string_view &s) const noexcept;
  inline element_result<element> operator[](const char *s) const noexcept;

private:
  really_inline element_result(element value) noexcept;
  really_inline element_result(error_code _error) noexcept;
  friend class document;
  friend class element;
};

// Add exception-throwing navigation methods to element_result<array>
template<>
class document::element_result<document::array> {
public:
  /** The value */
  array value;
  /** The error code (or 0 if there is no error) */
  error_code error;

  inline operator array() const noexcept(false);

  inline array::iterator begin() const noexcept(false);
  inline array::iterator end() const noexcept(false);

private:
  really_inline element_result(array value) noexcept;
  really_inline element_result(error_code _error) noexcept;
  friend class document;
  friend class element;
};

// Add exception-throwing navigation methods to element_result<object>
template<>
class document::element_result<document::object> {
public:
  /** The value */
  object value;
  /** The error code (or 0 if there is no error) */
  error_code error;

  inline operator object() const noexcept(false);

  inline object::iterator begin() const noexcept(false);
  inline object::iterator end() const noexcept(false);

  inline element_result<element> operator[](const std::string_view &s) const noexcept;
  inline element_result<element> operator[](const char *s) const noexcept;

private:
  really_inline element_result(object value) noexcept;
  really_inline element_result(error_code _error) noexcept;
  friend class document;
  friend class element;
};

/**
  * A persistent document parser.
  *
  * Use this if you intend to parse more than one document. It holds the internal memory necessary
  * to do parsing, as well as memory for a single document that is overwritten on each parse.
  *
  * This class cannot be copied, only moved, to avoid unintended allocations.
  *
  * @note This is not thread safe: one parser cannot produce two documents at the same time!
  */
class document::parser {
public:
  /**
  * Create a JSON parser with zero capacity. Call allocate_capacity() to initialize it.
  */
  parser()=default;
  ~parser()=default;

  /**
   * Take another parser's buffers and state.
   *
   * @param other The parser to take. Its capacity is zeroed.
   */
  parser(document::parser &&other) = default;
  parser(const document::parser &) = delete; // Disallow copying
  /**
   * Take another parser's buffers and state.
   *
   * @param other The parser to take. Its capacity is zeroed.
   */
  parser &operator=(document::parser &&other) = default;
  parser &operator=(const document::parser &) = delete; // Disallow copying

  /**
   * Parse a JSON document and return a reference to it.
   *
   * The JSON document still lives in the parser: this is the most efficient way to parse JSON
   * documents because it reuses the same buffers, but you *must* use the document before you
   * destroy the parser or call parse() again.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If realloc_if_needed is true,
   * it is assumed that the buffer does *not* have enough padding, and it is reallocated, enlarged
   * and copied before parsing.
   *
   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
   *            realloc_if_needed is true.
   * @param len The length of the JSON.
   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return the document, or an error if the JSON is invalid.
   */
  inline doc_ref_result parse(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept;

  /**
   * Parse a JSON document and return a reference to it.
   *
   * The JSON document still lives in the parser: this is the most efficient way to parse JSON
   * documents because it reuses the same buffers, but you *must* use the document before you
   * destroy the parser or call parse() again.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If realloc_if_needed is true,
   * it is assumed that the buffer does *not* have enough padding, and it is reallocated, enlarged
   * and copied before parsing.
   *
   * @param buf The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, unless
   *            realloc_if_needed is true.
   * @param len The length of the JSON.
   * @param realloc_if_needed Whether to reallocate and enlarge the JSON buffer to add padding.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline doc_ref_result parse(const char *buf, size_t len, bool realloc_if_needed = true) noexcept;

  /**
   * Parse a JSON document and return a reference to it.
   *
   * The JSON document still lives in the parser: this is the most efficient way to parse JSON
   * documents because it reuses the same buffers, but you *must* use the document before you
   * destroy the parser or call parse() again.
   *
   * The buffer must have at least SIMDJSON_PADDING extra allocated bytes. It does not matter what
   * those bytes are initialized to, as long as they are allocated. If `str.capacity() - str.size()
   * < SIMDJSON_PADDING`, the string will be copied to a string with larger capacity before parsing.
   *
   * @param s The JSON to parse. Must have at least len + SIMDJSON_PADDING allocated bytes, or
   *          a new string will be created with the extra padding.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline doc_ref_result parse(const std::string &s) noexcept;

  /**
   * Parse a JSON document and return a reference to it.
   *
   * The JSON document still lives in the parser: this is the most efficient way to parse JSON
   * documents because it reuses the same buffers, but you *must* use the document before you
   * destroy the parser or call parse() again.
   *
   * @param s The JSON to parse.
   * @return the document, or an error if the JSON is invalid.
   */
  really_inline doc_ref_result parse(const padded_string &s) noexcept;

  // We do not want to allow implicit conversion from C string to std::string.
  really_inline doc_ref_result parse(const char *buf) noexcept = delete;

  /**
   * Current capacity: the largest document this parser can support without reallocating.
   */
  really_inline size_t capacity() const noexcept;

  /**
   * The maximum level of nested object and arrays supported by this parser.
   */
  really_inline size_t max_depth() const noexcept;

  /**
   * Ensure this parser has enough memory to process JSON documents up to `capacity` bytes in length
   * and `max_depth` depth.
   */
  WARN_UNUSED inline bool allocate_capacity(size_t capacity, size_t max_depth = DEFAULT_MAX_DEPTH);

  // type aliases for backcompat
  using Iterator = document::iterator;
  using InvalidJSON = invalid_json;

  // Next location to write to in the tape
  uint32_t current_loc{0};

  // structural indices passed from stage 1 to stage 2
  uint32_t n_structural_indexes{0};
  std::unique_ptr<uint32_t[]> structural_indexes;

  // location and return address of each open { or [
  std::unique_ptr<uint32_t[]> containing_scope_offset;
#ifdef SIMDJSON_USE_COMPUTED_GOTO
  std::unique_ptr<void*[]> ret_address;
#else
  std::unique_ptr<char[]> ret_address;
#endif

  // Next place to write a string
  uint8_t *current_string_buf_loc;

  bool valid{false};
  error_code error{UNINITIALIZED};

  // Document we're writing to
  document doc;

  //
  // TODO these are deprecated; use the results of parse instead.
  //

  // returns true if the document parsed was valid
  inline bool is_valid() const noexcept;

  // return an error code corresponding to the last parsing attempt, see
  // simdjson.h will return UNITIALIZED if no parsing was attempted
  inline int get_error_code() const noexcept;

  // return the string equivalent of "get_error_code"
  inline std::string get_error_message() const noexcept;

  // print the json to std::ostream (should be valid)
  // return false if the tape is likely wrong (e.g., you did not parse a valid
  // JSON).
  inline bool print_json(std::ostream &os) const noexcept;
  inline bool dump_raw_tape(std::ostream &os) const noexcept;

  //
  // Parser callbacks: these are internal!
  //
  // TODO find a way to do this without exposing the interface or crippling performance
  //

  // this should be called when parsing (right before writing the tapes)
  inline void init_stage2() noexcept;
  really_inline error_code on_error(error_code new_error_code) noexcept;
  really_inline error_code on_success(error_code success_code) noexcept;
  really_inline bool on_start_document(uint32_t depth) noexcept;
  really_inline bool on_start_object(uint32_t depth) noexcept;
  really_inline bool on_start_array(uint32_t depth) noexcept;
  // TODO we're not checking this bool
  really_inline bool on_end_document(uint32_t depth) noexcept;
  really_inline bool on_end_object(uint32_t depth) noexcept;
  really_inline bool on_end_array(uint32_t depth) noexcept;
  really_inline bool on_true_atom() noexcept;
  really_inline bool on_false_atom() noexcept;
  really_inline bool on_null_atom() noexcept;
  really_inline uint8_t *on_start_string() noexcept;
  really_inline bool on_end_string(uint8_t *dst) noexcept;
  really_inline bool on_number_s64(int64_t value) noexcept;
  really_inline bool on_number_u64(uint64_t value) noexcept;
  really_inline bool on_number_double(double value) noexcept;
  //
  // Called before a parse is initiated.
  //
  // - Returns CAPACITY if the document is too large
  // - Returns MEMALLOC if we needed to allocate memory and could not
  //
  WARN_UNUSED inline error_code init_parse(size_t len) noexcept;

private:
  //
  // The maximum document length this parser supports.
  //
  // Buffers are large enough to handle any document up to this length.
  //
  size_t _capacity{0};

  //
  // The maximum depth (number of nested objects and arrays) supported by this parser.
  //
  // Defaults to DEFAULT_MAX_DEPTH.
  //
  size_t _max_depth{0};

  // all nodes are stored on the doc.tape using a 64-bit word.
  //
  // strings, double and ints are stored as
  //  a 64-bit word with a pointer to the actual value
  //
  //
  //
  // for objects or arrays, store [ or {  at the beginning and } and ] at the
  // end. For the openings ([ or {), we annotate them with a reference to the
  // location on the doc.tape of the end, and for then closings (} and ]), we
  // annotate them with a reference to the location of the opening
  //
  //

  inline void write_tape(uint64_t val, tape_type t) noexcept;
  inline void annotate_previous_loc(uint32_t saved_loc, uint64_t val) noexcept;

  //
  // Set the current capacity: the largest document this parser can support without reallocating.
  //
  // This will allocate *or deallocate* as necessary.
  //
  // Returns false if allocation fails.
  //
  inline WARN_UNUSED bool set_capacity(size_t capacity);

  //
  // Set the maximum level of nested object and arrays supported by this parser.
  //
  // This will allocate *or deallocate* as necessary.
  //
  // Returns false if allocation fails.
  //
  inline WARN_UNUSED bool set_max_depth(size_t max_depth);

  // Used internally to get the document
  inline const document &get_document() const noexcept(false);

  template<size_t max_depth> friend class document_iterator;
}; // class parser

} // namespace simdjson

#endif // SIMDJSON_DOCUMENT_H
/* end file include/simdjson/simdjson.h */

namespace simdjson {

/**
 * An implementation of simdjson for a particular CPU architecture.
 *
 * Also used to maintain the currently active implementation. The active implementation is
 * automatically initialized on first use to the most advanced implementation supported by the host.
 */
class implementation {
public:
  /**
   * The name of this implementation.
   *
   *     const implementation *impl = simdjson::active_implementation;
   *     cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl;
   *
   * @return the name of the implementation, e.g. "haswell", "westmere", "arm64"
   */
  virtual const std::string &name() const { return _name; }

  /**
   * The description of this implementation.
   *
   *     const implementation *impl = simdjson::active_implementation;
   *     cout << "simdjson is optimized for " << impl->name() << "(" << impl->description() << ")" << endl;
   *
   * @return the name of the implementation, e.g. "haswell", "westmere", "arm64"
   */
  virtual const std::string &description() const { return _description; }

  /**
   * The instruction sets this implementation is compiled against.
   *
   * @return a mask of all required `instruction_set` values
   */
  virtual uint32_t required_instruction_sets() const { return _required_instruction_sets; };

  /**
   * Run a full document parse (init_parse, stage1 and stage2).
   *
   * Overridden by each implementation.
   *
   * @param buf the json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes.
   * @param len the length of the json document.
   * @param parser the parser with the buffers to use. *MUST* have allocated up to at least len capacity.
   * @return the error code, or SUCCESS if there was no error.
   */
  WARN_UNUSED virtual error_code parse(const uint8_t *buf, size_t len, document::parser &parser) const noexcept = 0;

  /**
   * Stage 1 of the document parser.
   *
   * Overridden by each implementation.
   *
   * @param buf the json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes.
   * @param len the length of the json document.
   * @param parser the parser with the buffers to use. *MUST* have allocated up to at least len capacity.
   * @param streaming whether this is being called by a JsonStream parser.
   * @return the error code, or SUCCESS if there was no error.
   */
  WARN_UNUSED virtual error_code stage1(const uint8_t *buf, size_t len, document::parser &parser, bool streaming) const noexcept = 0;

  /**
   * Stage 2 of the document parser.
   *
   * Overridden by each implementation.
   *
   * @param buf the json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes.
   * @param len the length of the json document.
   * @param parser the parser with the buffers to use. *MUST* have allocated up to at least len capacity.
   * @return the error code, or SUCCESS if there was no error.
   */
  WARN_UNUSED virtual error_code stage2(const uint8_t *buf, size_t len, document::parser &parser) const noexcept = 0;

  /**
   * Stage 2 of the document parser for JsonStream.
   *
   * Overridden by each implementation.
   *
   * @param buf the json document to parse. *MUST* be allocated up to len + SIMDJSON_PADDING bytes.
   * @param len the length of the json document.
   * @param parser the parser with the buffers to use. *MUST* have allocated up to at least len capacity.
   * @param next_json the next structural index. Start this at 0 the first time, and it will be updated to the next value to pass each time.
   * @return the error code, SUCCESS if there was no error, or SUCCESS_AND_HAS_MORE if there was no error and stage2 can be called again.
   */
  WARN_UNUSED virtual error_code stage2(const uint8_t *buf, size_t len, document::parser &parser, size_t &next_json) const noexcept = 0;

protected:
  really_inline implementation(
    const std::string &name,
    const std::string &description,
    uint32_t required_instruction_sets
  ) :
    _name(name),
    _description(description),
    _required_instruction_sets(required_instruction_sets)
  {
  }

private:
  /**
   * The name of this implementation.
   */
  const std::string _name;

  /**
   * The description of this implementation.
   */
  const std::string _description;

  /**
   * Instruction sets required for this implementation.
   */
  const uint32_t _required_instruction_sets;
};

namespace internal {

/**
 * The list of available implementations compiled into simdjson.
 */
class available_implementation_list {
public:
  /** Get the list of available implementations compiled into simdjson */
  really_inline available_implementation_list() {}
  /** Number of implementations */
  size_t size() const noexcept;
  /** STL const begin() iterator */
  const implementation * const *begin() const noexcept;
  /** STL const end() iterator */
  const implementation * const *end() const noexcept;

  /**
   * Get the implementation with the given name.
   *
   * Case sensitive.
   *
   *     const implementation *impl = simdjson::available_implementations["westmere"];
   *     if (!impl) { exit(1); }
   *     simdjson::active_implementation = impl;
   *
   * @param name the implementation to find, e.g. "westmere", "haswell", "arm64"
   * @return the implementation, or nullptr if the parse failed.
   */
  const implementation * operator[](const std::string& name) const noexcept {
    for (const implementation * impl : *this) {
      if (impl->name() == name) { return impl; }
    }
    return nullptr;
  }

  /**
   * Detect the most advanced implementation supported by the current host.
   *
   * This is used to initialize the implementation on startup.
   *
   *     const implementation *impl = simdjson::available_implementation::detect_best_supported();
   *     simdjson::active_implementation = impl;
   *
   * @return the most advanced supported implementation for the current host, or an
   *         implementation that returns UNSUPPORTED_ARCHITECTURE if there is no supported
   *         implementation. Will never return nullptr.
   */
  const implementation *detect_best_supported() const noexcept;
};

// Detects best supported implementation on first use, and sets it
class detect_best_supported_implementation_on_first_use final : public implementation {
public:
  const std::string& name() const noexcept final { return set_best()->name(); }
  const std::string& description() const noexcept final { return set_best()->description(); }
  uint32_t required_instruction_sets() const noexcept final { return set_best()->required_instruction_sets(); }
  WARN_UNUSED error_code parse(const uint8_t *buf, size_t len, document::parser &parser) const noexcept final {
    return set_best()->parse(buf, len, parser);
  }
  WARN_UNUSED error_code stage1(const uint8_t *buf, size_t len, document::parser &parser, bool streaming) const noexcept final {
    return set_best()->stage1(buf, len, parser, streaming);
  }
  WARN_UNUSED error_code stage2(const uint8_t *buf, size_t len, document::parser &parser) const noexcept final {
    return set_best()->stage2(buf, len, parser);
  }
  WARN_UNUSED error_code stage2(const uint8_t *buf, size_t len, document::parser &parser, size_t &next_json) const noexcept final {
    return set_best()->stage2(buf, len, parser, next_json);
  }

  really_inline detect_best_supported_implementation_on_first_use() noexcept : implementation("best_supported_detector", "Detects the best supported implementation and sets it", 0) {}
private:
  const implementation *set_best() const noexcept;
};

inline const detect_best_supported_implementation_on_first_use detect_best_supported_implementation_on_first_use_singleton;

template<typename T>
class atomic_ptr {
public:
  atomic_ptr(T *_ptr) : ptr{_ptr} {}

  operator const T*() const { return ptr.load(); }
  const T& operator*() const { return *ptr; }
  const T* operator->() const { return ptr.load(); }

  operator T*() { return ptr.load(); }
  T& operator*() { return *ptr; }
  T* operator->() { return ptr.load(); }
  T* operator=(T *_ptr) { return ptr = _ptr; }

private:
  std::atomic<T*> ptr;
};

} // namespace [simdjson::]internal

/**
 * The list of available implementations compiled into simdjson.
 */
inline const internal::available_implementation_list available_implementations;

/**
  * The active implementation.
  *
  * Automatically initialized on first use to the most advanced implementation supported by this hardware.
  */
inline internal::atomic_ptr<const implementation> active_implementation = &internal::detect_best_supported_implementation_on_first_use_singleton;

} // namespace simdjson

#endif // SIMDJSON_IMPLEMENTATION_H
/* end file include/simdjson/simdjson.h */
/* begin file include/simdjson/jsonstream.h */
#ifndef SIMDJSON_JSONSTREAM_H
#define SIMDJSON_JSONSTREAM_H

#include <thread>

namespace simdjson {

/*************************************************************************************
 * The main motivation for this piece of software is to achieve maximum speed
 *and offer
 * good quality of life while parsing files containing multiple JSON documents.
 *
 * Since we want to offer flexibility and not restrict ourselves to a specific
 *file
 * format, we support any file that contains any valid JSON documents separated
 *by one
 * or more character that is considered a whitespace by the JSON spec.
 * Namely: space, nothing, linefeed, carriage return, horizontal tab.
 * Anything that is not whitespace will be parsed as a JSON document and could
 *lead
 * to failure.
 *
 * To offer maximum parsing speed, our implementation processes the data inside
 *the
 * buffer by batches and their size is defined by the parameter "batch_size".
 * By loading data in batches, we can optimize the time spent allocating data in
 *the
 * parser and can also open the possibility of multi-threading.
 * The batch_size must be at least as large as the biggest document in the file,
 *but
 * not too large in order to submerge the chached memory.  We found that 1MB is
 * somewhat a sweet spot for now.  Eventually, this batch_size could be fully
 * automated and be optimal at all times.
 ************************************************************************************/
/**
*  The template parameter (string_container) must
* support the data() and size() methods, returning a pointer
* to a char* and to the number of bytes respectively.
* The simdjson parser may read up to SIMDJSON_PADDING bytes beyond the end
* of the string, so if you do not use a padded_string container,
* you have the responsability to overallocated. If you fail to
* do so, your software may crash if you cross a page boundary,
* and you should expect memory checkers to object.
* Most users should use a simdjson::padded_string.
*/
template <class string_container = padded_string> class JsonStream {
public:
  /* Create a JsonStream object that can be used to parse sequentially the valid
   * JSON documents found in the buffer "buf".
   *
   * The batch_size must be at least as large as the biggest document in the
   * file, but
   * not too large to submerge the cached memory.  We found that 1MB is
   * somewhat a sweet spot for now.
   *
   * The user is expected to call the following json_parse method to parse the
   * next
   * valid JSON document found in the buffer.  This method can and is expected
   * to be
   * called in a loop.
   *
   * Various methods are offered to keep track of the status, like
   * get_current_buffer_loc,
   * get_n_parsed_docs, get_n_bytes_parsed, etc.
   *
   * */
  JsonStream(const string_container &s, size_t batch_size = 1000000);

  ~JsonStream();

  /* Parse the next document found in the buffer previously given to JsonStream.

   * The content should be a valid JSON document encoded as UTF-8. If there is a
   * UTF-8 BOM, the caller is responsible for omitting it, UTF-8 BOM are
   * discouraged.
   *
   * You do NOT need to pre-allocate a parser.  This function takes care of
   * pre-allocating a capacity defined by the batch_size defined when creating
   the
   * JsonStream object.
   *
   * The function returns simdjson::SUCCESS_AND_HAS_MORE (an integer = 1) in
   case
   * of success and indicates that the buffer still contains more data to be
   parsed,
   * meaning this function can be called again to return the next JSON document
   * after this one.
   *
   * The function returns simdjson::SUCCESS (as integer = 0) in case of success
   * and indicates that the buffer has successfully been parsed to the end.
   * Every document it contained has been parsed without error.
   *
   * The function returns an error code from simdjson/simdjson.h in case of
   failure
   * such as simdjson::CAPACITY, simdjson::MEMALLOC, simdjson::DEPTH_ERROR and
   so forth;
   * the simdjson::error_message function converts these error codes into a
   * string).
   *
   * You can also check validity by calling parser.is_valid(). The same parser
   can
   * and should be reused for the other documents in the buffer. */
  int json_parse(document::parser &parser);

  /* Returns the location (index) of where the next document should be in the
   * buffer.
   * Can be used for debugging, it tells the user the position of the end of the
   * last
   * valid JSON document parsed*/
  inline size_t get_current_buffer_loc() const { return current_buffer_loc; }

  /* Returns the total amount of complete documents parsed by the JsonStream,
   * in the current buffer, at the given time.*/
  inline size_t get_n_parsed_docs() const { return n_parsed_docs; }

  /* Returns the total amount of data (in bytes) parsed by the JsonStream,
   * in the current buffer, at the given time.*/
  inline size_t get_n_bytes_parsed() const { return n_bytes_parsed; }

private:
  inline const uint8_t *buf() const { return reinterpret_cast<uint8_t*>(str.data()) + str_start; }

  inline void advance(size_t offset) { str_start += offset; }

  inline size_t remaining() const { return str.size() - str_start; }

  const string_container &str;
  size_t _batch_size; // this is actually variable!
  size_t str_start{0};
  size_t next_json{0};
  bool load_next_batch{true};
  size_t current_buffer_loc{0};
#ifdef SIMDJSON_THREADS_ENABLED
  size_t last_json_buffer_loc{0};
#endif
  size_t n_parsed_docs{0};
  size_t n_bytes_parsed{0};
  simdjson::implementation *stage_parser;
#ifdef SIMDJSON_THREADS_ENABLED
  error_code stage1_is_ok_thread{SUCCESS};
  std::thread stage_1_thread;
  document::parser parser_thread;
#endif
}; // end of class JsonStream

} // end of namespace simdjson
#endif // SIMDJSON_JSONSTREAM_H
/* end file include/simdjson/jsonstream.h */
/* begin file include/simdjson/jsonminifier.h */
#ifndef SIMDJSON_JSONMINIFIER_H
#define SIMDJSON_JSONMINIFIER_H

#include <cstddef>
#include <cstdint>
#include <string_view>

namespace simdjson {

// Take input from buf and remove useless whitespace, write it to out; buf and
// out can be the same pointer. Result is null terminated,
// return the string length (minus the null termination).
// The accelerated version of this function only runs on AVX2 hardware.
size_t json_minify(const uint8_t *buf, size_t len, uint8_t *out);

static inline size_t json_minify(const char *buf, size_t len, char *out) {
  return json_minify(reinterpret_cast<const uint8_t *>(buf), len,
                     reinterpret_cast<uint8_t *>(out));
}

static inline size_t json_minify(const std::string_view &p, char *out) {
  return json_minify(p.data(), p.size(), out);
}

static inline size_t json_minify(const padded_string &p, char *out) {
  return json_minify(p.data(), p.size(), out);
}
} // namespace simdjson
#endif
/* end file include/simdjson/jsonminifier.h */

// Deprecated API
/* begin file include/simdjson/parsedjsoniterator.h */
// TODO Remove this -- deprecated API and files

#ifndef SIMDJSON_PARSEDJSONITERATOR_H
#define SIMDJSON_PARSEDJSONITERATOR_H

/* begin file include/simdjson/document_iterator.h */
#ifndef SIMDJSON_DOCUMENT_ITERATOR_H
#define SIMDJSON_DOCUMENT_ITERATOR_H

#include <cstring>
#include <string>
#include <iostream>
#include <iterator>
#include <limits>
#include <stdexcept>

/* begin file include/simdjson/internal/jsonformatutils.h */
#ifndef SIMDJSON_INTERNAL_JSONFORMATUTILS_H
#define SIMDJSON_INTERNAL_JSONFORMATUTILS_H

#include <iomanip>
#include <iostream>

namespace simdjson::internal {

// ends with zero char
static inline void print_with_escapes(const unsigned char *src, std::ostream &os) {
  while (*src) {
    switch (*src) {
    case '\b':
      os << '\\';
      os << 'b';
      break;
    case '\f':
      os << '\\';
      os << 'f';
      break;
    case '\n':
      os << '\\';
      os << 'n';
      break;
    case '\r':
      os << '\\';
      os << 'r';
      break;
    case '\"':
      os << '\\';
      os << '"';
      break;
    case '\t':
      os << '\\';
      os << 't';
      break;
    case '\\':
      os << '\\';
      os << '\\';
      break;
    default:
      if (*src <= 0x1F) {
        std::ios::fmtflags f(os.flags());
        os << std::hex << std::setw(4) << std::setfill('0')
           << static_cast<int>(*src);
        os.flags(f);
      } else {
        os << *src;
      }
    }
    src++;
  }
}


// print len chars
static inline void print_with_escapes(const unsigned char *src,
                                      std::ostream &os, size_t len) {
  const unsigned char *finalsrc = src + len;
  while (src < finalsrc) {
    switch (*src) {
    case '\b':
      os << '\\';
      os << 'b';
      break;
    case '\f':
      os << '\\';
      os << 'f';
      break;
    case '\n':
      os << '\\';
      os << 'n';
      break;
    case '\r':
      os << '\\';
      os << 'r';
      break;
    case '\"':
      os << '\\';
      os << '"';
      break;
    case '\t':
      os << '\\';
      os << 't';
      break;
    case '\\':
      os << '\\';
      os << '\\';
      break;
    default:
      if (*src <= 0x1F) {
        std::ios::fmtflags f(os.flags());
        os << std::hex << std::setw(4) << std::setfill('0')
           << static_cast<int>(*src);
        os.flags(f);
      } else {
        os << *src;
      }
    }
    src++;
  }
}

static inline void print_with_escapes(const char *src, std::ostream &os) {
  print_with_escapes(reinterpret_cast<const unsigned char *>(src), os);
}

static inline void print_with_escapes(const char *src, std::ostream &os, size_t len) {
  print_with_escapes(reinterpret_cast<const unsigned char *>(src), os, len);
}

} // namespace simdjson::internal

#endif // SIMDJSON_INTERNAL_JSONFORMATUTILS_H
/* end file include/simdjson/internal/jsonformatutils.h */

namespace simdjson {

template <size_t max_depth> class document_iterator {
public:
  document_iterator(const document::parser &parser);
  document_iterator(const document &doc) noexcept;
  document_iterator(const document_iterator &o) noexcept;
  document_iterator &operator=(const document_iterator &o) noexcept;

  inline bool is_ok() const;

  // useful for debuging purposes
  inline size_t get_tape_location() const;

  // useful for debuging purposes
  inline size_t get_tape_length() const;

  // returns the current depth (start at 1 with 0 reserved for the fictitious
  // root node)
  inline size_t get_depth() const;

  // A scope is a series of nodes at the same depth, typically it is either an
  // object ({) or an array ([). The root node has type 'r'.
  inline uint8_t get_scope_type() const;

  // move forward in document order
  inline bool move_forward();

  // retrieve the character code of what we're looking at:
  // [{"slutfn are the possibilities
  inline uint8_t get_type() const {
      return current_type; // short functions should be inlined!
  }

  // get the int64_t value at this node; valid only if get_type is "l"
  inline int64_t get_integer() const {
      if (location + 1 >= tape_length) {
      return 0; // default value in case of error
      }
      return static_cast<int64_t>(doc.tape[location + 1]);
  }

  // get the value as uint64; valid only if  if get_type is "u"
  inline uint64_t get_unsigned_integer() const {
      if (location + 1 >= tape_length) {
      return 0; // default value in case of error
      }
      return doc.tape[location + 1];
  }

  // get the string value at this node (NULL ended); valid only if get_type is "
  // note that tabs, and line endings are escaped in the returned value (see
  // print_with_escapes) return value is valid UTF-8, it may contain NULL chars
  // within the string: get_string_length determines the true string length.
  inline const char *get_string() const {
      return reinterpret_cast<const char *>(
          doc.string_buf.get() + (current_val & JSON_VALUE_MASK) + sizeof(uint32_t));
  }

  // return the length of the string in bytes
  inline uint32_t get_string_length() const {
      uint32_t answer;
      memcpy(&answer,
          reinterpret_cast<const char *>(doc.string_buf.get() +
                                          (current_val & JSON_VALUE_MASK)),
          sizeof(uint32_t));
      return answer;
  }

  // get the double value at this node; valid only if
  // get_type() is "d"
  inline double get_double() const {
      if (location + 1 >= tape_length) {
      return std::numeric_limits<double>::quiet_NaN(); // default value in
                                                      // case of error
      }
      double answer;
      memcpy(&answer, &doc.tape[location + 1], sizeof(answer));
      return answer;
  }

  inline bool is_object_or_array() const { return is_object() || is_array(); }

  inline bool is_object() const { return get_type() == '{'; }

  inline bool is_array() const { return get_type() == '['; }

  inline bool is_string() const { return get_type() == '"'; }

  // Returns true if the current type of node is an signed integer.
  // You can get its value with `get_integer()`.
  inline bool is_integer() const { return get_type() == 'l'; }

  // Returns true if the current type of node is an unsigned integer.
  // You can get its value with `get_unsigned_integer()`.
  //
  // NOTE:
  // Only a large value, which is out of range of a 64-bit signed integer, is
  // represented internally as an unsigned node. On the other hand, a typical
  // positive integer, such as 1, 42, or 1000000, is as a signed node.
  // Be aware this function returns false for a signed node.
  inline bool is_unsigned_integer() const { return get_type() == 'u'; }

  inline bool is_double() const { return get_type() == 'd'; }

  inline bool is_number() const {
      return is_integer() || is_unsigned_integer() || is_double();
  }

  inline bool is_true() const { return get_type() == 't'; }

  inline bool is_false() const { return get_type() == 'f'; }

  inline bool is_null() const { return get_type() == 'n'; }

  static bool is_object_or_array(uint8_t type) {
      return ((type == '[') || (type == '{'));
  }

  // when at {, go one level deep, looking for a given key
  // if successful, we are left pointing at the value,
  // if not, we are still pointing at the object ({)
  // (in case of repeated keys, this only finds the first one).
  // We seek the key using C's strcmp so if your JSON strings contain
  // NULL chars, this would trigger a false positive: if you expect that
  // to be the case, take extra precautions.
  // Furthermore, we do the comparison character-by-character
  // without taking into account Unicode equivalence.
  inline bool move_to_key(const char *key);

  // as above, but case insensitive lookup (strcmpi instead of strcmp)
  inline bool move_to_key_insensitive(const char *key);

  // when at {, go one level deep, looking for a given key
  // if successful, we are left pointing at the value,
  // if not, we are still pointing at the object ({)
  // (in case of repeated keys, this only finds the first one).
  // The string we search for can contain NULL values.
  // Furthermore, we do the comparison character-by-character
  // without taking into account Unicode equivalence.
  inline bool move_to_key(const char *key, uint32_t length);

  // when at a key location within an object, this moves to the accompanying
  // value (located next to it). This is equivalent but much faster than
  // calling "next()".
  inline void move_to_value();

  // when at [, go one level deep, and advance to the given index.
  // if successful, we are left pointing at the value,
  // if not, we are still pointing at the array ([)
  inline bool move_to_index(uint32_t index);

  // Moves the iterator to the value correspoding to the json pointer.
  // Always search from the root of the document.
  // if successful, we are left pointing at the value,
  // if not, we are still pointing the same value we were pointing before the
  // call. The json pointer follows the rfc6901 standard's syntax:
  // https://tools.ietf.org/html/rfc6901 However, the standard says "If a
  // referenced member name is not unique in an object, the member that is
  // referenced is undefined, and evaluation fails". Here we just return the
  // first corresponding value. The length parameter is the length of the
  // jsonpointer string ('pointer').
  bool move_to(const char *pointer, uint32_t length);

  // Moves the iterator to the value correspoding to the json pointer.
  // Always search from the root of the document.
  // if successful, we are left pointing at the value,
  // if not, we are still pointing the same value we were pointing before the
  // call. The json pointer implementation follows the rfc6901 standard's
  // syntax: https://tools.ietf.org/html/rfc6901 However, the standard says
  // "If a referenced member name is not unique in an object, the member that
  // is referenced is undefined, and evaluation fails". Here we just return
  // the first corresponding value.
  inline bool move_to(const std::string &pointer) {
      return move_to(pointer.c_str(), pointer.length());
  }

  private:
  // Almost the same as move_to(), except it searchs from the current
  // position. The pointer's syntax is identical, though that case is not
  // handled by the rfc6901 standard. The '/' is still required at the
  // beginning. However, contrary to move_to(), the URI Fragment Identifier
  // Representation is not supported here. Also, in case of failure, we are
  // left pointing at the closest value it could reach. For these reasons it
  // is private. It exists because it is used by move_to().
  bool relative_move_to(const char *pointer, uint32_t length);

  public:
  // throughout return true if we can do the navigation, false
  // otherwise

  // Withing a given scope (series of nodes at the same depth within either an
  // array or an object), we move forward.
  // Thus, given [true, null, {"a":1}, [1,2]], we would visit true, null, {
  // and [. At the object ({) or at the array ([), you can issue a "down" to
  // visit their content. valid if we're not at the end of a scope (returns
  // true).
  inline bool next();

  // Within a given scope (series of nodes at the same depth within either an
  // array or an object), we move backward.
  // Thus, given [true, null, {"a":1}, [1,2]], we would visit ], }, null, true
  // when starting at the end of the scope. At the object ({) or at the array
  // ([), you can issue a "down" to visit their content.
  // Performance warning: This function is implemented by starting again
  // from the beginning of the scope and scanning forward. You should expect
  // it to be relatively slow.
  inline bool prev();

  // Moves back to either the containing array or object (type { or [) from
  // within a contained scope.
  // Valid unless we are at the first level of the document
  inline bool up();

  // Valid if we're at a [ or { and it starts a non-empty scope; moves us to
  // start of that deeper scope if it not empty. Thus, given [true, null,
  // {"a":1}, [1,2]], if we are at the { node, we would move to the "a" node.
  inline bool down();

  // move us to the start of our current scope,
  // a scope is a series of nodes at the same level
  inline void to_start_scope();

  inline void rewind() {
      while (up())
      ;
  }

  // void to_end_scope();              // move us to
  // the start of our current scope; always succeeds

  // print the node we are currently pointing at
  bool print(std::ostream &os, bool escape_strings = true) const;
  typedef struct {
      size_t start_of_scope;
      uint8_t scope_type;
  } scopeindex_t;

  private:
  const document &doc;
  size_t depth;
  size_t location; // our current location on a tape
  size_t tape_length;
  uint8_t current_type;
  uint64_t current_val;
  scopeindex_t depth_index[max_depth];
};

} // namespace simdjson

#endif // SIMDJSON_DOCUMENT_ITERATOR_H
/* end file include/simdjson/internal/jsonformatutils.h */

#endif
/* end file include/simdjson/internal/jsonformatutils.h */
/* begin file include/simdjson/jsonparser.h */
// TODO Remove this -- deprecated API and files

#ifndef SIMDJSON_JSONPARSER_H
#define SIMDJSON_JSONPARSER_H

/* begin file include/simdjson/parsedjson.h */
// TODO Remove this -- deprecated API and files

#ifndef SIMDJSON_PARSEDJSON_H
#define SIMDJSON_PARSEDJSON_H


namespace simdjson {

using ParsedJson = document::parser;

} // namespace simdjson
#endif
/* end file include/simdjson/parsedjson.h */
/* begin file include/simdjson/jsonioutil.h */
#ifndef SIMDJSON_JSONIOUTIL_H
#define SIMDJSON_JSONIOUTIL_H

#include <exception>
#include <fstream>
#include <iostream>
#include <sstream>
#include <stdexcept>
#include <string>


namespace simdjson {

// load a file in memory...
// get a corpus; pad out to cache line so we can always use SIMD
// throws exceptions in case of failure
// first element of the pair is a string (null terminated)
// whereas the second element is the length.
// caller is responsible to free (aligned_free((void*)result.data())))
//
// throws an exception if the file cannot be opened, use try/catch
//      try {
//        p = get_corpus(filename);
//      } catch (const std::exception& e) {
//        aligned_free((void*)p.data());
//        std::cout << "Could not load the file " << filename << std::endl;
//      }
padded_string get_corpus(const std::string &filename);
} // namespace simdjson

#endif
/* end file include/simdjson/jsonioutil.h */

namespace simdjson {

//
// C API (json_parse and build_parsed_json) declarations
//

inline int json_parse(const uint8_t *buf, size_t len, document::parser &parser, bool realloc_if_needed = true) noexcept {
  error_code code = parser.parse(buf, len, realloc_if_needed).error;
  // The deprecated json_parse API is a signal that the user plans to *use* the error code / valid
  // bits in the parser instead of heeding the result code. The normal parser unsets those in
  // anticipation of making the error code ephemeral.
  // Here we put the code back into the parser, until we've removed this method.
  parser.valid = code == SUCCESS;
  parser.error = code;
  return code;
}
inline int json_parse(const char *buf, size_t len, document::parser &parser, bool realloc_if_needed = true) noexcept {
  return json_parse(reinterpret_cast<const uint8_t *>(buf), len, parser, realloc_if_needed);
}
inline int json_parse(const std::string &s, document::parser &parser, bool realloc_if_needed = true) noexcept {
  return json_parse(s.data(), s.length(), parser, realloc_if_needed);
}
inline int json_parse(const padded_string &s, document::parser &parser) noexcept {
  return json_parse(s.data(), s.length(), parser, false);
}

WARN_UNUSED static document::parser build_parsed_json(const uint8_t *buf, size_t len, bool realloc_if_needed = true) noexcept {
  document::parser parser;
  if (!parser.allocate_capacity(len)) {
    parser.valid = false;
    parser.error = MEMALLOC;
    return parser;
  }
  json_parse(buf, len, parser, realloc_if_needed);
  return parser;
}
WARN_UNUSED inline document::parser build_parsed_json(const char *buf, size_t len, bool realloc_if_needed = true) noexcept {
  return build_parsed_json(reinterpret_cast<const uint8_t *>(buf), len, realloc_if_needed);
}
WARN_UNUSED inline document::parser build_parsed_json(const std::string &s, bool realloc_if_needed = true) noexcept {
  return build_parsed_json(s.data(), s.length(), realloc_if_needed);
}
WARN_UNUSED inline document::parser build_parsed_json(const padded_string &s) noexcept {
  return build_parsed_json(s.data(), s.length(), false);
}

// We do not want to allow implicit conversion from C string to std::string.
int json_parse(const char *buf, document::parser &parser) noexcept = delete;
document::parser build_parsed_json(const char *buf) noexcept = delete;

} // namespace simdjson

#endif
/* end file include/simdjson/jsonioutil.h */

// Inline functions
/* begin file include/simdjson/inline/document.h */
#ifndef SIMDJSON_INLINE_DOCUMENT_H
#define SIMDJSON_INLINE_DOCUMENT_H

// Inline implementations go in here.

#include <iostream>

namespace simdjson {

//
// document::element_result<T> inline implementation
//
template<typename T>
inline document::element_result<T>::element_result(T _value) noexcept : value(_value), error{SUCCESS} {}
template<typename T>
inline document::element_result<T>::element_result(error_code _error) noexcept : value(), error{_error} {}
template<>
inline document::element_result<std::string_view>::operator std::string_view() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
template<>
inline document::element_result<const char *>::operator const char *() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
template<>
inline document::element_result<bool>::operator bool() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
template<>
inline document::element_result<uint64_t>::operator uint64_t() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
template<>
inline document::element_result<int64_t>::operator int64_t() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
template<>
inline document::element_result<double>::operator double() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}

//
// document::element_result<document::array> inline implementation
//
inline document::element_result<document::array>::element_result(document::array _value) noexcept : value(_value), error{SUCCESS} {}
inline document::element_result<document::array>::element_result(error_code _error) noexcept : value(), error{_error} {}
inline document::element_result<document::array>::operator document::array() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
inline document::array::iterator document::element_result<document::array>::begin() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value.begin();
}
inline document::array::iterator document::element_result<document::array>::end() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value.end();
}

//
// document::element_result<document::object> inline implementation
//
inline document::element_result<document::object>::element_result(document::object _value) noexcept : value(_value), error{SUCCESS} {}
inline document::element_result<document::object>::element_result(error_code _error) noexcept : value(), error{_error} {}
inline document::element_result<document::object>::operator document::object() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value;
}
inline document::element_result<document::element> document::element_result<document::object>::operator[](const std::string_view &key) const noexcept {
  if (error) { return error; }
  return value[key];
}
inline document::element_result<document::element> document::element_result<document::object>::operator[](const char *key) const noexcept {
  if (error) { return error; }
  return value[key];
}
inline document::object::iterator document::element_result<document::object>::begin() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value.begin();
}
inline document::object::iterator document::element_result<document::object>::end() const noexcept(false) {
  if (error) { throw invalid_json(error); }
  return value.end();
}

//
// document::element_result<document::element> inline implementation
//
inline document::element_result<document::element>::element_result(document::element _value) noexcept : value(_value), error{SUCCESS} {}
inline document::element_result<document::element>::element_result(error_code _error) noexcept : value(), error{_error} {}
inline document::element_result<bool> document::element_result<document::element>::is_null() const noexcept {
  if (error) { return error; }
  return value.is_null();
}
inline document::element_result<bool> document::element_result<document::element>::as_bool() const noexcept {
  if (error) { return error; }
  return value.as_bool();
}
inline document::element_result<const char*> document::element_result<document::element>::as_c_str() const noexcept {
  if (error) { return error; }
  return value.as_c_str();
}
inline document::element_result<std::string_view> document::element_result<document::element>::as_string() const noexcept {
  if (error) { return error; }
  return value.as_string();
}
inline document::element_result<uint64_t> document::element_result<document::element>::as_uint64_t() const noexcept {
  if (error) { return error; }
  return value.as_uint64_t();
}
inline document::element_result<int64_t> document::element_result<document::element>::as_int64_t() const noexcept {
  if (error) { return error; }
  return value.as_int64_t();
}
inline document::element_result<double> document::element_result<document::element>::as_double() const noexcept {
  if (error) { return error; }
  return value.as_double();
}
inline document::element_result<document::array> document::element_result<document::element>::as_array() const noexcept {
  if (error) { return error; }
  return value.as_array();
}
inline document::element_result<document::object> document::element_result<document::element>::as_object() const noexcept {
  if (error) { return error; }
  return value.as_object();
}

inline document::element_result<document::element>::operator bool() const noexcept(false) {
  return as_bool();
}
inline document::element_result<document::element>::operator const char *() const noexcept(false) {
  return as_c_str();
}
inline document::element_result<document::element>::operator std::string_view() const noexcept(false) {
  return as_string();
}
inline document::element_result<document::element>::operator uint64_t() const noexcept(false) {
  return as_uint64_t();
}
inline document::element_result<document::element>::operator int64_t() const noexcept(false) {
  return as_int64_t();
}
inline document::element_result<document::element>::operator double() const noexcept(false) {
  return as_double();
}
inline document::element_result<document::element>::operator document::array() const noexcept(false) {
  return as_array();
}
inline document::element_result<document::element>::operator document::object() const noexcept(false) {
  return as_object();
}
inline document::element_result<document::element> document::element_result<document::element>::operator[](const std::string_view &key) const noexcept {
  if (error) { return *this; }
  return value[key];
}
inline document::element_result<document::element> document::element_result<document::element>::operator[](const char *key) const noexcept {
  if (error) { return *this; }
  return value[key];
}

//
// document inline implementation
//
inline document::element document::root() const noexcept {
  return document::element(this, 1);
}
inline document::element_result<document::array> document::as_array() const noexcept {
  return root().as_array();
}
inline document::element_result<document::object> document::as_object() const noexcept {
  return root().as_object();
}
inline document::operator document::element() const noexcept {
  return root();
}
inline document::operator document::array() const noexcept(false) {
  return root();
}
inline document::operator document::object() const noexcept(false) {
  return root();
}
inline document::element_result<document::element> document::operator[](const std::string_view &key) const noexcept {
  return root()[key];
}
inline document::element_result<document::element> document::operator[](const char *key) const noexcept {
  return root()[key];
}

inline document::doc_result document::parse(const uint8_t *buf, size_t len, bool realloc_if_needed) noexcept {
  document::parser parser;
  if (!parser.allocate_capacity(len)) {
    return MEMALLOC;
  }
  auto [doc, error] = parser.parse(buf, len, realloc_if_needed);
  return document::doc_result((document &&)doc, error);
}
really_inline document::doc_result document::parse(const char *buf, size_t len, bool realloc_if_needed) noexcept {
    return parse((const uint8_t *)buf, len, realloc_if_needed);
}
really_inline document::doc_result document::parse(const std::string &s) noexcept {
    return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING);
}
really_inline document::doc_result document::parse(const padded_string &s) noexcept {
    return parse(s.data(), s.length(), false);
}

WARN_UNUSED
inline bool document::set_capacity(size_t capacity) {
  if (capacity == 0) {
    string_buf.reset();
    tape.reset();
    return true;
  }

  // a pathological input like "[[[[..." would generate len tape elements, so
  // need a capacity of at least len + 1, but it is also possible to do
  // worse with "[7,7,7,7,6,7,7,7,6,7,7,6,[7,7,7,7,6,7,7,7,6,7,7,6,7,7,7,7,7,7,6" 
  //where len + 1 tape elements are
  // generated, see issue https://github.com/lemire/simdjson/issues/345
  size_t tape_capacity = ROUNDUP_N(capacity + 2, 64);
  // a document with only zero-length strings... could have len/3 string
  // and we would need len/3 * 5 bytes on the string buffer
  size_t string_capacity = ROUNDUP_N(5 * capacity / 3 + 32, 64);
  string_buf.reset( new (std::nothrow) uint8_t[string_capacity]);
  tape.reset(new (std::nothrow) uint64_t[tape_capacity]);
  return string_buf && tape;
}

inline bool document::print_json(std::ostream &os, size_t max_depth) const noexcept {
  uint32_t string_length;
  size_t tape_idx = 0;
  uint64_t tape_val = tape[tape_idx];
  uint8_t type = (tape_val >> 56);
  size_t how_many = 0;
  if (type == 'r') {
    how_many = tape_val & JSON_VALUE_MASK;
  } else {
    // Error: no starting root node?
    return false;
  }
  tape_idx++;
  std::unique_ptr<bool[]> in_object(new bool[max_depth]);
  std::unique_ptr<size_t[]> in_object_idx(new size_t[max_depth]);
  int depth = 1; // only root at level 0
  in_object_idx[depth] = 0;
  in_object[depth] = false;
  for (; tape_idx < how_many; tape_idx++) {
    tape_val = tape[tape_idx];
    uint64_t payload = tape_val & JSON_VALUE_MASK;
    type = (tape_val >> 56);
    if (!in_object[depth]) {
      if ((in_object_idx[depth] > 0) && (type != ']')) {
        os << ",";
      }
      in_object_idx[depth]++;
    } else { // if (in_object) {
      if ((in_object_idx[depth] > 0) && ((in_object_idx[depth] & 1) == 0) &&
          (type != '}')) {
        os << ",";
      }
      if (((in_object_idx[depth] & 1) == 1)) {
        os << ":";
      }
      in_object_idx[depth]++;
    }
    switch (type) {
    case '"': // we have a string
      os << '"';
      memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t));
      internal::print_with_escapes(
          (const unsigned char *)(string_buf.get() + payload + sizeof(uint32_t)),
          os, string_length);
      os << '"';
      break;
    case 'l': // we have a long int
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      os << static_cast<int64_t>(tape[++tape_idx]);
      break;
    case 'u':
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      os << tape[++tape_idx];
      break;
    case 'd': // we have a double
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      double answer;
      memcpy(&answer, &tape[++tape_idx], sizeof(answer));
      os << answer;
      break;
    case 'n': // we have a null
      os << "null";
      break;
    case 't': // we have a true
      os << "true";
      break;
    case 'f': // we have a false
      os << "false";
      break;
    case '{': // we have an object
      os << '{';
      depth++;
      in_object[depth] = true;
      in_object_idx[depth] = 0;
      break;
    case '}': // we end an object
      depth--;
      os << '}';
      break;
    case '[': // we start an array
      os << '[';
      depth++;
      in_object[depth] = false;
      in_object_idx[depth] = 0;
      break;
    case ']': // we end an array
      depth--;
      os << ']';
      break;
    case 'r': // we start and end with the root node
      // should we be hitting the root node?
      return false;
    default:
      // bug?
      return false;
    }
  }
  return true;
}

inline bool document::dump_raw_tape(std::ostream &os) const noexcept {
  uint32_t string_length;
  size_t tape_idx = 0;
  uint64_t tape_val = tape[tape_idx];
  uint8_t type = (tape_val >> 56);
  os << tape_idx << " : " << type;
  tape_idx++;
  size_t how_many = 0;
  if (type == 'r') {
    how_many = tape_val & JSON_VALUE_MASK;
  } else {
    // Error: no starting root node?
    return false;
  }
  os << "\t// pointing to " << how_many << " (right after last node)\n";
  uint64_t payload;
  for (; tape_idx < how_many; tape_idx++) {
    os << tape_idx << " : ";
    tape_val = tape[tape_idx];
    payload = tape_val & JSON_VALUE_MASK;
    type = (tape_val >> 56);
    switch (type) {
    case '"': // we have a string
      os << "string \"";
      memcpy(&string_length, string_buf.get() + payload, sizeof(uint32_t));
      internal::print_with_escapes(
          (const unsigned char *)(string_buf.get() + payload + sizeof(uint32_t)),
                  os,
          string_length);
      os << '"';
      os << '\n';
      break;
    case 'l': // we have a long int
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      os << "integer " << static_cast<int64_t>(tape[++tape_idx]) << "\n";
      break;
    case 'u': // we have a long uint
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      os << "unsigned integer " << tape[++tape_idx] << "\n";
      break;
    case 'd': // we have a double
      os << "float ";
      if (tape_idx + 1 >= how_many) {
        return false;
      }
      double answer;
      memcpy(&answer, &tape[++tape_idx], sizeof(answer));
      os << answer << '\n';
      break;
    case 'n': // we have a null
      os << "null\n";
      break;
    case 't': // we have a true
      os << "true\n";
      break;
    case 'f': // we have a false
      os << "false\n";
      break;
    case '{': // we have an object
      os << "{\t// pointing to next tape location " << payload
         << " (first node after the scope) \n";
      break;
    case '}': // we end an object
      os << "}\t// pointing to previous tape location " << payload
         << " (start of the scope) \n";
      break;
    case '[': // we start an array
      os << "[\t// pointing to next tape location " << payload
         << " (first node after the scope) \n";
      break;
    case ']': // we end an array
      os << "]\t// pointing to previous tape location " << payload
         << " (start of the scope) \n";
      break;
    case 'r': // we start and end with the root node
      // should we be hitting the root node?
      return false;
    default:
      return false;
    }
  }
  tape_val = tape[tape_idx];
  payload = tape_val & JSON_VALUE_MASK;
  type = (tape_val >> 56);
  os << tape_idx << " : " << type << "\t// pointing to " << payload
     << " (start root)\n";
  return true;
}

//
// document::doc_ref_result inline implementation
//
inline document::doc_ref_result::doc_ref_result(document &_doc, error_code _error) noexcept : doc(_doc), error(_error) { }
inline document::doc_ref_result::operator document&() noexcept(false) {
  if (error) {
    throw invalid_json(error);
  }
  return doc;
}
inline const std::string &document::doc_ref_result::get_error_message() const noexcept {
  return error_message(error);
}

//
// document::doc_result inline implementation
//
inline document::doc_result::doc_result(document &&_doc, error_code _error) noexcept : doc(std::move(_doc)), error(_error) { }
inline document::doc_result::doc_result(document &&_doc) noexcept : doc(std::move(_doc)), error(SUCCESS) { }
inline document::doc_result::doc_result(error_code _error) noexcept : doc(), error(_error) { }
inline document::doc_result::operator document() noexcept(false) {
  if (error) {
    throw invalid_json(error);
  }
  return std::move(doc);
}
inline const std::string &document::doc_result::get_error_message() const noexcept {
  return error_message(error);
}

//
// document::parser inline implementation
//
inline bool document::parser::is_valid() const noexcept { return valid; }
inline int document::parser::get_error_code() const noexcept { return error; }
inline std::string document::parser::get_error_message() const noexcept { return error_message(error); }
inline bool document::parser::print_json(std::ostream &os) const noexcept {
  return is_valid() ? doc.print_json(os) : false;
}
inline bool document::parser::dump_raw_tape(std::ostream &os) const noexcept {
  return is_valid() ? doc.dump_raw_tape(os) : false;
}
inline const document &document::parser::get_document() const noexcept(false) {
  if (!is_valid()) {
    throw invalid_json(error);
  }
  return doc;
}

inline document::doc_ref_result document::parser::parse(const uint8_t *buf, size_t len, bool realloc_if_needed) noexcept {
  error_code code = init_parse(len);
  if (code) { return document::doc_ref_result(doc, code); }

  if (realloc_if_needed) {
    const uint8_t *tmp_buf = buf;
    buf = (uint8_t *)allocate_padded_buffer(len);
    if (buf == nullptr)
      return document::doc_ref_result(doc, MEMALLOC);
    memcpy((void *)buf, tmp_buf, len);
  }

  code = simdjson::active_implementation->parse(buf, len, *this);

  // We're indicating validity via the doc_ref_result, so set the parse state back to invalid
  valid = false;
  error = UNINITIALIZED;
  if (realloc_if_needed) {
    aligned_free((void *)buf); // must free before we exit
  }
  return document::doc_ref_result(doc, code);
}
really_inline document::doc_ref_result document::parser::parse(const char *buf, size_t len, bool realloc_if_needed) noexcept {
  return parse((const uint8_t *)buf, len, realloc_if_needed);
}
really_inline document::doc_ref_result document::parser::parse(const std::string &s) noexcept {
  return parse(s.data(), s.length(), s.capacity() - s.length() < SIMDJSON_PADDING);
}
really_inline document::doc_ref_result document::parser::parse(const padded_string &s) noexcept {
  return parse(s.data(), s.length(), false);
}

really_inline size_t document::parser::capacity() const noexcept {
  return _capacity;
}
really_inline size_t document::parser::max_depth() const noexcept {
  return _max_depth;
}
WARN_UNUSED inline bool document::parser::allocate_capacity(size_t capacity, size_t max_depth) {
  return set_capacity(capacity) && set_max_depth(max_depth);
}

WARN_UNUSED
inline bool document::parser::set_capacity(size_t capacity) {
  if (_capacity == capacity) {
    return true;
  }

  // Set capacity to 0 until we finish, in case there's an error
  _capacity = 0;

  //
  // Reallocate the document
  //
  if (!doc.set_capacity(capacity)) {
    return false;
  }

  //
  // Don't allocate 0 bytes, just return.
  //
  if (capacity == 0) {
    structural_indexes.reset();
    return true;
  }

  //
  // Initialize stage 1 output
  //
  uint32_t max_structures = ROUNDUP_N(capacity, 64) + 2 + 7;
  structural_indexes.reset( new (std::nothrow) uint32_t[max_structures]); // TODO realloc
  if (!structural_indexes) {
    return false;
  }

  _capacity = capacity;
  return true;
}

WARN_UNUSED inline bool document::parser::set_max_depth(size_t max_depth) {
  _max_depth = 0;

  if (max_depth == 0) {
    ret_address.reset();
    containing_scope_offset.reset();
    return true;
  }

  //
  // Initialize stage 2 state
  //
  containing_scope_offset.reset(new (std::nothrow) uint32_t[max_depth]); // TODO realloc
#ifdef SIMDJSON_USE_COMPUTED_GOTO
  ret_address.reset(new (std::nothrow) void *[max_depth]);
#else
  ret_address.reset(new (std::nothrow) char[max_depth]);
#endif

  if (!ret_address || !containing_scope_offset) {
    // Could not allocate memory
    return false;
  }

  _max_depth = max_depth;
  return true;
}

WARN_UNUSED
inline error_code document::parser::init_parse(size_t len) noexcept {
  if (len > capacity()) {
    return error = CAPACITY;
  }
  // If the last doc was taken, we need to allocate a new one
  if (!doc.tape) {
    if (!doc.set_capacity(len)) {
      return error = MEMALLOC;
    }
  }
  return SUCCESS;
}

//
// document::tape_ref inline implementation
//
really_inline document::tape_ref::tape_ref() noexcept : doc{nullptr}, json_index{0} {}
really_inline document::tape_ref::tape_ref(const document *_doc, size_t _json_index) noexcept : doc{_doc}, json_index{_json_index} {}

inline size_t document::tape_ref::after_element() const noexcept {
  switch (type()) {
    case tape_type::START_ARRAY:
    case tape_type::START_OBJECT:
      return tape_value();
    case tape_type::UINT64:
    case tape_type::INT64:
    case tape_type::DOUBLE:
      return json_index + 2;
    default:
      return json_index + 1;
  }
}
really_inline document::tape_type document::tape_ref::type() const noexcept {
  return static_cast<tape_type>(doc->tape[json_index] >> 56);
}
really_inline uint64_t document::tape_ref::tape_value() const noexcept {
  return doc->tape[json_index] & JSON_VALUE_MASK;
}
template<typename T>
really_inline T document::tape_ref::next_tape_value() const noexcept {
  static_assert(sizeof(T) == sizeof(uint64_t));
  return *reinterpret_cast<const T*>(&doc->tape[json_index + 1]);
}

//
// document::array inline implementation
//
really_inline document::array::array() noexcept : tape_ref() {}
really_inline document::array::array(const document *_doc, size_t _json_index) noexcept : tape_ref(_doc, _json_index) {}
inline document::array::iterator document::array::begin() const noexcept {
  return iterator(doc, json_index + 1);
}
inline document::array::iterator document::array::end() const noexcept {
  return iterator(doc, after_element() - 1);
}


//
// document::array::iterator inline implementation
//
really_inline document::array::iterator::iterator(const document *_doc, size_t _json_index) noexcept : tape_ref(_doc, _json_index) { }
inline document::element document::array::iterator::operator*() const noexcept {
  return element(doc, json_index);
}
inline bool document::array::iterator::operator!=(const document::array::iterator& other) const noexcept {
  return json_index != other.json_index;
}
inline void document::array::iterator::operator++() noexcept {
  json_index = after_element();
}

//
// document::object inline implementation
//
really_inline document::object::object() noexcept : tape_ref() {}
really_inline document::object::object(const document *_doc, size_t _json_index) noexcept : tape_ref(_doc, _json_index) { };
inline document::object::iterator document::object::begin() const noexcept {
  return iterator(doc, json_index + 1);
}
inline document::object::iterator document::object::end() const noexcept {
  return iterator(doc, after_element() - 1);
}
inline document::element_result<document::element> document::object::operator[](const std::string_view &key) const noexcept {
  iterator end_field = end();
  for (iterator field = begin(); field != end_field; ++field) {
    if (key == field.key()) {
      return field.value();
    }
  }
  return NO_SUCH_FIELD;
}
inline document::element_result<document::element> document::object::operator[](const char *key) const noexcept {
  iterator end_field = end();
  for (iterator field = begin(); field != end_field; ++field) {
    if (!strcmp(key, field.key_c_str())) {
      return field.value();
    }
  }
  return NO_SUCH_FIELD;
}

//
// document::object::iterator inline implementation
//
really_inline document::object::iterator::iterator(const document *_doc, size_t _json_index) noexcept : tape_ref(_doc, _json_index) { }
inline const document::key_value_pair document::object::iterator::operator*() const noexcept {
  return key_value_pair(key(), value());
}
inline bool document::object::iterator::operator!=(const document::object::iterator& other) const noexcept {
  return json_index != other.json_index;
}
inline void document::object::iterator::operator++() noexcept {
  json_index++;
  json_index = after_element();
}
inline std::string_view document::object::iterator::key() const noexcept {
  size_t string_buf_index = tape_value();
  uint32_t len;
  memcpy(&len, &doc->string_buf[string_buf_index], sizeof(len));
  return std::string_view(
    reinterpret_cast<const char *>(&doc->string_buf[string_buf_index + sizeof(uint32_t)]),
    len
  );
}
inline const char* document::object::iterator::key_c_str() const noexcept {
  return reinterpret_cast<const char *>(&doc->string_buf[tape_value() + sizeof(uint32_t)]);
}
inline document::element document::object::iterator::value() const noexcept {
  return element(doc, json_index + 1);
}

//
// document::key_value_pair inline implementation
//
inline document::key_value_pair::key_value_pair(std::string_view _key, document::element _value) noexcept :
  key(_key), value(_value) {}

//
// document::element inline implementation
//
really_inline document::element::element() noexcept : tape_ref() {}
really_inline document::element::element(const document *_doc, size_t _json_index) noexcept : tape_ref(_doc, _json_index) { }
really_inline bool document::element::is_null() const noexcept {
  return type() == tape_type::NULL_VALUE;
}
really_inline bool document::element::is_bool() const noexcept {
  return type() == tape_type::TRUE_VALUE || type() == tape_type::FALSE_VALUE;
}
really_inline bool document::element::is_number() const noexcept {
  return type() == tape_type::UINT64 || type() == tape_type::INT64 || type() == tape_type::DOUBLE;
}
really_inline bool document::element::is_integer() const noexcept {
  return type() == tape_type::UINT64 || type() == tape_type::INT64;
}
really_inline bool document::element::is_string() const noexcept {
  return type() == tape_type::STRING;
}
really_inline bool document::element::is_array() const noexcept {
  return type() == tape_type::START_ARRAY;
}
really_inline bool document::element::is_object() const noexcept {
  return type() == tape_type::START_OBJECT;
}
inline document::element::operator bool() const noexcept(false) { return as_bool(); }
inline document::element::operator const char*() const noexcept(false) { return as_c_str(); }
inline document::element::operator std::string_view() const noexcept(false) { return as_string(); }
inline document::element::operator uint64_t() const noexcept(false) { return as_uint64_t(); }
inline document::element::operator int64_t() const noexcept(false) { return as_int64_t(); }
inline document::element::operator double() const noexcept(false) { return as_double(); }
inline document::element::operator document::array() const noexcept(false) { return as_array(); }
inline document::element::operator document::object() const noexcept(false) { return as_object(); }
inline document::element_result<bool> document::element::as_bool() const noexcept {
  switch (type()) {
    case tape_type::TRUE_VALUE:
      return true;
    case tape_type::FALSE_VALUE:
      return false;
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<const char *> document::element::as_c_str() const noexcept {
  switch (type()) {
    case tape_type::STRING: {
      size_t string_buf_index = tape_value();
      return reinterpret_cast<const char *>(&doc->string_buf[string_buf_index + sizeof(uint32_t)]);
    }
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<std::string_view> document::element::as_string() const noexcept {
  switch (type()) {
    case tape_type::STRING: {
      size_t string_buf_index = tape_value();
      uint32_t len;
      memcpy(&len, &doc->string_buf[string_buf_index], sizeof(len));
      return std::string_view(
        reinterpret_cast<const char *>(&doc->string_buf[string_buf_index + sizeof(uint32_t)]),
        len
      );
    }
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<uint64_t> document::element::as_uint64_t() const noexcept {
  switch (type()) {
    case tape_type::UINT64:
      return next_tape_value<uint64_t>();
    case tape_type::INT64: {
      int64_t result = next_tape_value<int64_t>();
      if (result < 0) {
        return NUMBER_OUT_OF_RANGE;
      }
      return static_cast<uint64_t>(result);
    }
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<int64_t> document::element::as_int64_t() const noexcept {
  switch (type()) {
    case tape_type::UINT64: {
      uint64_t result = next_tape_value<uint64_t>();
      // Wrapping max in parens to handle Windows issue: https://stackoverflow.com/questions/11544073/how-do-i-deal-with-the-max-macro-in-windows-h-colliding-with-max-in-std
      if (result > (std::numeric_limits<uint64_t>::max)()) {
        return NUMBER_OUT_OF_RANGE;
      }
      return static_cast<int64_t>(result);
    }
    case tape_type::INT64:
      return next_tape_value<int64_t>();
    default:
    std::cout << "Incorrect " << json_index << " = " << char(type()) << std::endl;
      return INCORRECT_TYPE;
  }
}
inline document::element_result<double> document::element::as_double() const noexcept {
  switch (type()) {
    case tape_type::UINT64:
      return next_tape_value<uint64_t>();
    case tape_type::INT64: {
      return next_tape_value<int64_t>();
      int64_t result = tape_value();
      if (result < 0) {
        return NUMBER_OUT_OF_RANGE;
      }
      return result;
    }
    case tape_type::DOUBLE:
      return next_tape_value<double>();
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<document::array> document::element::as_array() const noexcept {
  switch (type()) {
    case tape_type::START_ARRAY:
      return array(doc, json_index);
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<document::object> document::element::as_object() const noexcept {
  switch (type()) {
    case tape_type::START_OBJECT:
      return object(doc, json_index);
    default:
      return INCORRECT_TYPE;
  }
}
inline document::element_result<document::element> document::element::operator[](const std::string_view &key) const noexcept {
  auto [obj, error] = as_object();
  if (error) { return error; }
  return obj[key];
}
inline document::element_result<document::element> document::element::operator[](const char *key) const noexcept {
  auto [obj, error] = as_object();
  if (error) { return error; }
  return obj[key];
}

} // namespace simdjson

#endif // SIMDJSON_INLINE_DOCUMENT_H
/* end file include/simdjson/inline/document.h */
/* begin file include/simdjson/inline/document_iterator.h */
#ifndef SIMDJSON_INLINE_DOCUMENT_ITERATOR_H
#define SIMDJSON_INLINE_DOCUMENT_ITERATOR_H


namespace simdjson {

// Because of template weirdness, the actual class definition is inline in the document class

template <size_t max_depth>
WARN_UNUSED bool document_iterator<max_depth>::is_ok() const {
  return location < tape_length;
}

// useful for debuging purposes
template <size_t max_depth>
size_t document_iterator<max_depth>::get_tape_location() const {
  return location;
}

// useful for debuging purposes
template <size_t max_depth>
size_t document_iterator<max_depth>::get_tape_length() const {
  return tape_length;
}

// returns the current depth (start at 1 with 0 reserved for the fictitious root
// node)
template <size_t max_depth>
size_t document_iterator<max_depth>::get_depth() const {
  return depth;
}

// A scope is a series of nodes at the same depth, typically it is either an
// object ({) or an array ([). The root node has type 'r'.
template <size_t max_depth>
uint8_t document_iterator<max_depth>::get_scope_type() const {
  return depth_index[depth].scope_type;
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_forward() {
  if (location + 1 >= tape_length) {
    return false; // we are at the end!
  }

  if ((current_type == '[') || (current_type == '{')) {
    // We are entering a new scope
    depth++;
    assert(depth < max_depth);
    depth_index[depth].start_of_scope = location;
    depth_index[depth].scope_type = current_type;
  } else if ((current_type == ']') || (current_type == '}')) {
    // Leaving a scope.
    depth--;
  } else if (is_number()) {
    // these types use 2 locations on the tape, not just one.
    location += 1;
  }

  location += 1;
  current_val = doc.tape[location];
  current_type = (current_val >> 56);
  return true;
}

template <size_t max_depth>
void document_iterator<max_depth>::move_to_value() {
  // assume that we are on a key, so move by 1.
  location += 1;
  current_val = doc.tape[location];
  current_type = (current_val >> 56);
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_to_key(const char *key) {
    if (down()) {
      do {
        const bool right_key = (strcmp(get_string(), key) == 0);
        move_to_value();
        if (right_key) {
          return true;
        }
      } while (next());
      up();
    }
    return false;
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_to_key_insensitive(
    const char *key) {
    if (down()) {
      do {
        const bool right_key = (simdjson_strcasecmp(get_string(), key) == 0);
        move_to_value();
        if (right_key) {
          return true;
        }
      } while (next());
      up();
    }
    return false;
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_to_key(const char *key,
                                                       uint32_t length) {
  if (down()) {
    do {
      bool right_key = ((get_string_length() == length) &&
                        (memcmp(get_string(), key, length) == 0));
      move_to_value();
      if (right_key) {
        return true;
      }
    } while (next());
    up();
  }
  return false;
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_to_index(uint32_t index) {
  if (down()) {
    uint32_t i = 0;
    for (; i < index; i++) {
      if (!next()) {
        break;
      }
    }
    if (i == index) {
      return true;
    }
    up();
  }
  return false;
}

template <size_t max_depth> bool document_iterator<max_depth>::prev() {
  size_t target_location = location;
  to_start_scope();
  size_t npos = location;
  if (target_location == npos) {
    return false; // we were already at the start
  }
  size_t oldnpos;
  // we have that npos < target_location here
  do {
    oldnpos = npos;
    if ((current_type == '[') || (current_type == '{')) {
      // we need to jump
      npos = (current_val & JSON_VALUE_MASK);
    } else {
      npos = npos + ((current_type == 'd' || current_type == 'l') ? 2 : 1);
    }
  } while (npos < target_location);
  location = oldnpos;
  current_val = doc.tape[location];
  current_type = current_val >> 56;
  return true;
}

template <size_t max_depth> bool document_iterator<max_depth>::up() {
  if (depth == 1) {
    return false; // don't allow moving back to root
  }
  to_start_scope();
  // next we just move to the previous value
  depth--;
  location -= 1;
  current_val = doc.tape[location];
  current_type = (current_val >> 56);
  return true;
}

template <size_t max_depth> bool document_iterator<max_depth>::down() {
  if (location + 1 >= tape_length) {
    return false;
  }
  if ((current_type == '[') || (current_type == '{')) {
    size_t npos = (current_val & JSON_VALUE_MASK);
    if (npos == location + 2) {
      return false; // we have an empty scope
    }
    depth++;
    assert(depth < max_depth);
    location = location + 1;
    depth_index[depth].start_of_scope = location;
    depth_index[depth].scope_type = current_type;
    current_val = doc.tape[location];
    current_type = (current_val >> 56);
    return true;
  }
  return false;
}

template <size_t max_depth>
void document_iterator<max_depth>::to_start_scope() {
  location = depth_index[depth].start_of_scope;
  current_val = doc.tape[location];
  current_type = (current_val >> 56);
}

template <size_t max_depth> bool document_iterator<max_depth>::next() {
  size_t npos;
  if ((current_type == '[') || (current_type == '{')) {
    // we need to jump
    npos = (current_val & JSON_VALUE_MASK);
  } else {
    npos = location + (is_number() ? 2 : 1);
  }
  uint64_t next_val = doc.tape[npos];
  uint8_t next_type = (next_val >> 56);
  if ((next_type == ']') || (next_type == '}')) {
    return false; // we reached the end of the scope
  }
  location = npos;
  current_val = next_val;
  current_type = next_type;
  return true;
}

template <size_t max_depth>
document_iterator<max_depth>::document_iterator(const document &doc_) noexcept
    : doc(doc_), depth(0), location(0), tape_length(0) {
  depth_index[0].start_of_scope = location;
  current_val = doc.tape[location++];
  current_type = (current_val >> 56);
  depth_index[0].scope_type = current_type;
  tape_length = current_val & JSON_VALUE_MASK;
  if (location < tape_length) {
    // If we make it here, then depth_capacity must >=2, but the compiler
    // may not know this.
    current_val = doc.tape[location];
    current_type = (current_val >> 56);
    depth++;
    assert(depth < max_depth);
    depth_index[depth].start_of_scope = location;
    depth_index[depth].scope_type = current_type;
  }
}

template <size_t max_depth>
document_iterator<max_depth>::document_iterator(const document::parser &parser)
    : document_iterator(parser.get_document()) {}

template <size_t max_depth>
document_iterator<max_depth>::document_iterator(
    const document_iterator &o) noexcept
    : doc(o.doc), depth(o.depth), location(o.location),
      tape_length(o.tape_length), current_type(o.current_type),
      current_val(o.current_val) {
  memcpy(depth_index, o.depth_index, (depth + 1) * sizeof(depth_index[0]));
}

template <size_t max_depth>
document_iterator<max_depth> &document_iterator<max_depth>::
operator=(const document_iterator &o) noexcept {
  doc = o.doc;
  depth = o.depth;
  location = o.location;
  tape_length = o.tape_length;
  current_type = o.current_type;
  current_val = o.current_val;
  memcpy(depth_index, o.depth_index, (depth + 1) * sizeof(depth_index[0]));
  return *this;
}

template <size_t max_depth>
bool document_iterator<max_depth>::print(std::ostream &os, bool escape_strings) const {
  if (!is_ok()) {
    return false;
  }
  switch (current_type) {
  case '"': // we have a string
    os << '"';
    if (escape_strings) {
      internal::print_with_escapes(get_string(), os, get_string_length());
    } else {
      // was: os << get_string();, but given that we can include null chars, we
      // have to do something crazier:
      std::copy(get_string(), get_string() + get_string_length(), std::ostream_iterator<char>(os));
    }
    os << '"';
    break;
  case 'l': // we have a long int
    os << get_integer();
    break;
  case 'u':
    os << get_unsigned_integer();
    break;
  case 'd':
    os << get_double();
    break;
  case 'n': // we have a null
    os << "null";
    break;
  case 't': // we have a true
    os << "true";
    break;
  case 'f': // we have a false
    os << "false";
    break;
  case '{': // we have an object
  case '}': // we end an object
  case '[': // we start an array
  case ']': // we end an array
    os << static_cast<char>(current_type);
    break;
  default:
    return false;
  }
  return true;
}

template <size_t max_depth>
bool document_iterator<max_depth>::move_to(const char *pointer,
                                                   uint32_t length) {
  char *new_pointer = nullptr;
  if (pointer[0] == '#') {
    // Converting fragment representation to string representation
    new_pointer = new char[length];
    uint32_t new_length = 0;
    for (uint32_t i = 1; i < length; i++) {
      if (pointer[i] == '%' && pointer[i + 1] == 'x') {
        try {
          int fragment =
              std::stoi(std::string(&pointer[i + 2], 2), nullptr, 16);
          if (fragment == '\\' || fragment == '"' || (fragment <= 0x1F)) {
            // escaping the character
            new_pointer[new_length] = '\\';
            new_length++;
          }
          new_pointer[new_length] = fragment;
          i += 3;
        } catch (std::invalid_argument &) {
          delete[] new_pointer;
          return false; // the fragment is invalid
        }
      } else {
        new_pointer[new_length] = pointer[i];
      }
      new_length++;
    }
    length = new_length;
    pointer = new_pointer;
  }

  // saving the current state
  size_t depth_s = depth;
  size_t location_s = location;
  uint8_t current_type_s = current_type;
  uint64_t current_val_s = current_val;

  rewind(); // The json pointer is used from the root of the document.

  bool found = relative_move_to(pointer, length);
  delete[] new_pointer;

  if (!found) {
    // since the pointer has found nothing, we get back to the original
    // position.
    depth = depth_s;
    location = location_s;
    current_type = current_type_s;
    current_val = current_val_s;
  }

  return found;
}

template <size_t max_depth>
bool document_iterator<max_depth>::relative_move_to(const char *pointer,
                                                            uint32_t length) {
  if (length == 0) {
    // returns the whole document
    return true;
  }

  if (pointer[0] != '/') {
    // '/' must be the first character
    return false;
  }

  // finding the key in an object or the index in an array
  std::string key_or_index;
  uint32_t offset = 1;

  // checking for the "-" case
  if (is_array() && pointer[1] == '-') {
    if (length != 2) {
      // the pointer must be exactly "/-"
      // there can't be anything more after '-' as an index
      return false;
    }
    key_or_index = '-';
    offset = length; // will skip the loop coming right after
  }

  // We either transform the first reference token to a valid json key
  // or we make sure it is a valid index in an array.
  for (; offset < length; offset++) {
    if (pointer[offset] == '/') {
      // beginning of the next key or index
      break;
    }
    if (is_array() && (pointer[offset] < '0' || pointer[offset] > '9')) {
      // the index of an array must be an integer
      // we also make sure std::stoi won't discard whitespaces later
      return false;
    }
    if (pointer[offset] == '~') {
      // "~1" represents "/"
      if (pointer[offset + 1] == '1') {
        key_or_index += '/';
        offset++;
        continue;
      }
      // "~0" represents "~"
      if (pointer[offset + 1] == '0') {
        key_or_index += '~';
        offset++;
        continue;
      }
    }
    if (pointer[offset] == '\\') {
      if (pointer[offset + 1] == '\\' || pointer[offset + 1] == '"' ||
          (pointer[offset + 1] <= 0x1F)) {
        key_or_index += pointer[offset + 1];
        offset++;
        continue;
      }
      return false; // invalid escaped character
    }
    if (pointer[offset] == '\"') {
      // unescaped quote character. this is an invalid case.
      // lets do nothing and assume most pointers will be valid.
      // it won't find any corresponding json key anyway.
      // return false;
    }
    key_or_index += pointer[offset];
  }

  bool found = false;
  if (is_object()) {
    if (move_to_key(key_or_index.c_str(), key_or_index.length())) {
      found = relative_move_to(pointer + offset, length - offset);
    }
  } else if (is_array()) {
    if (key_or_index == "-") { // handling "-" case first
      if (down()) {
        while (next())
          ; // moving to the end of the array
        // moving to the nonexistent value right after...
        size_t npos;
        if ((current_type == '[') || (current_type == '{')) {
          // we need to jump
          npos = (current_val & JSON_VALUE_MASK);
        } else {
          npos =
              location + ((current_type == 'd' || current_type == 'l') ? 2 : 1);
        }
        location = npos;
        current_val = doc.tape[npos];
        current_type = (current_val >> 56);
        return true; // how could it fail ?
      }
    } else { // regular numeric index
      // The index can't have a leading '0'
      if (key_or_index[0] == '0' && key_or_index.length() > 1) {
        return false;
      }
      // it cannot be empty
      if (key_or_index.length() == 0) {
        return false;
      }
      // we already checked the index contains only valid digits
      uint32_t index = std::stoi(key_or_index);
      if (move_to_index(index)) {
        found = relative_move_to(pointer + offset, length - offset);
      }
    }
  }

  return found;
}

} // namespace simdjson

#endif // SIMDJSON_INLINE_DOCUMENT_ITERATOR_H
/* end file include/simdjson/inline/document_iterator.h */
/* begin file include/simdjson/inline/jsonstream.h */
#ifndef SIMDJSON_INLINE_JSONSTREAM_H
#define SIMDJSON_INLINE_JSONSTREAM_H

#include <algorithm>
#include <limits>
#include <stdexcept>
#include <thread>

namespace simdjson::internal {

/* This algorithm is used to quickly identify the buffer position of
 * the last JSON document inside the current batch.
 *
 * It does its work by finding the last pair of structural characters
 * that represent the end followed by the start of a document.
 *
 * Simply put, we iterate over the structural characters, starting from
 * the end. We consider that we found the end of a JSON document when the
 * first element of the pair is NOT one of these characters: '{' '[' ';' ','
 * and when the second element is NOT one of these characters: '}' '}' ';' ','.
 *
 * This simple comparison works most of the time, but it does not cover cases
 * where the batch's structural indexes contain a perfect amount of documents.
 * In such a case, we do not have access to the structural index which follows
 * the last document, therefore, we do not have access to the second element in
 * the pair, and means that we cannot identify the last document. To fix this
 * issue, we keep a count of the open and closed curly/square braces we found
 * while searching for the pair. When we find a pair AND the count of open and
 * closed curly/square braces is the same, we know that we just passed a
 * complete
 * document, therefore the last json buffer location is the end of the batch
 * */
inline size_t find_last_json_buf_idx(const uint8_t *buf, size_t size, const document::parser &parser) {
  // this function can be generally useful
  if (parser.n_structural_indexes == 0)
    return 0;
  auto last_i = parser.n_structural_indexes - 1;
  if (parser.structural_indexes[last_i] == size) {
    if (last_i == 0)
      return 0;
    last_i = parser.n_structural_indexes - 2;
  }
  auto arr_cnt = 0;
  auto obj_cnt = 0;
  for (auto i = last_i; i > 0; i--) {
    auto idxb = parser.structural_indexes[i];
    switch (buf[idxb]) {
    case ':':
    case ',':
      continue;
    case '}':
      obj_cnt--;
      continue;
    case ']':
      arr_cnt--;
      continue;
    case '{':
      obj_cnt++;
      break;
    case '[':
      arr_cnt++;
      break;
    }
    auto idxa = parser.structural_indexes[i - 1];
    switch (buf[idxa]) {
    case '{':
    case '[':
    case ':':
    case ',':
      continue;
    }
    if (!arr_cnt && !obj_cnt) {
      return last_i + 1;
    }
    return i;
  }
  return 0;
}

// returns true if the provided byte value is an ASCII character
static inline bool is_ascii(char c) {
  return ((unsigned char)c) <= 127;
}

// if the string ends with  UTF-8 values, backtrack 
// up to the first ASCII character. May return 0.
static inline size_t trimmed_length_safe_utf8(const char * c, size_t len) {
  while ((len > 0) and (not is_ascii(c[len - 1]))) {
    len--;
  }
  return len;
}

} // namespace simdjson::internal

namespace simdjson {

template <class string_container>
JsonStream<string_container>::JsonStream(const string_container &s,
                                         size_t batchSize)
    : str(s), _batch_size(batchSize) {
}

template <class string_container> JsonStream<string_container>::~JsonStream() {
#ifdef SIMDJSON_THREADS_ENABLED
  if (stage_1_thread.joinable()) {
    stage_1_thread.join();
  }
#endif
}

#ifdef SIMDJSON_THREADS_ENABLED

// threaded version of json_parse
// todo: simplify this code further
template <class string_container>
int JsonStream<string_container>::json_parse(document::parser &parser) {
  if (unlikely(parser.capacity() == 0)) {
    const bool allocok = parser.allocate_capacity(_batch_size);
    if (!allocok) {
      return parser.error = simdjson::MEMALLOC;
    }
  } else if (unlikely(parser.capacity() < _batch_size)) {
    return parser.error = simdjson::CAPACITY;
  }
  if (unlikely(parser_thread.capacity() < _batch_size)) {
    const bool allocok_thread = parser_thread.allocate_capacity(_batch_size);
    if (!allocok_thread) {
      return parser.error = simdjson::MEMALLOC;
    }
  }
  if (unlikely(load_next_batch)) {
    // First time loading
    if (!stage_1_thread.joinable()) {
      _batch_size = (std::min)(_batch_size, remaining());
      _batch_size = internal::trimmed_length_safe_utf8((const char *)buf(), _batch_size);
      if (_batch_size == 0) {
        return parser.error = simdjson::UTF8_ERROR;
      }
      auto stage1_is_ok = error_code(simdjson::active_implementation->stage1(buf(), _batch_size, parser, true));
      if (stage1_is_ok != simdjson::SUCCESS) {
        return parser.error = stage1_is_ok;
      }
      size_t last_index = internal::find_last_json_buf_idx(buf(), _batch_size, parser);
      if (last_index == 0) {
        if (parser.n_structural_indexes == 0) {
          return parser.error = simdjson::EMPTY;
        }
      } else {
        parser.n_structural_indexes = last_index + 1;
      }
    }
    // the second thread is running or done.
    else {
      stage_1_thread.join();
      if (stage1_is_ok_thread != simdjson::SUCCESS) {
        return parser.error = stage1_is_ok_thread;
      }
      std::swap(parser.structural_indexes, parser_thread.structural_indexes);
      parser.n_structural_indexes = parser_thread.n_structural_indexes;
      advance(last_json_buffer_loc);
      n_bytes_parsed += last_json_buffer_loc;
    }
    // let us decide whether we will start a new thread
    if (remaining() - _batch_size > 0) {
      last_json_buffer_loc =
          parser.structural_indexes[internal::find_last_json_buf_idx(buf(), _batch_size, parser)];
      _batch_size = (std::min)(_batch_size, remaining() - last_json_buffer_loc);
      if (_batch_size > 0) {
        _batch_size = internal::trimmed_length_safe_utf8(
            (const char *)(buf() + last_json_buffer_loc), _batch_size);
        if (_batch_size == 0) {
          return parser.error = simdjson::UTF8_ERROR;
        }
        // let us capture read-only variables
        const uint8_t *const b = buf() + last_json_buffer_loc;
        const size_t bs = _batch_size;
        // we call the thread on a lambda that will update
        // this->stage1_is_ok_thread
        // there is only one thread that may write to this value
        stage_1_thread = std::thread([this, b, bs] {
          this->stage1_is_ok_thread = error_code(simdjson::active_implementation->stage1(b, bs, this->parser_thread, true));
        });
      }
    }
    next_json = 0;
    load_next_batch = false;
  } // load_next_batch
  int res = simdjson::active_implementation->stage2(buf(), remaining(), parser, next_json);
  if (res == simdjson::SUCCESS_AND_HAS_MORE) {
    n_parsed_docs++;
    current_buffer_loc = parser.structural_indexes[next_json];
    load_next_batch = (current_buffer_loc == last_json_buffer_loc);
  } else if (res == simdjson::SUCCESS) {
    n_parsed_docs++;
    if (remaining() > _batch_size) {
      current_buffer_loc = parser.structural_indexes[next_json - 1];
      load_next_batch = true;
      res = simdjson::SUCCESS_AND_HAS_MORE;
    }
  }
  return res;
}

#else  // SIMDJSON_THREADS_ENABLED

// single-threaded version of json_parse
template <class string_container>
int JsonStream<string_container>::json_parse(document::parser &parser) {
  if (unlikely(parser.capacity() == 0)) {
    const bool allocok = parser.allocate_capacity(_batch_size);
    if (!allocok) {
      parser.valid = false;
      return parser.error = MEMALLOC;
    }
  } else if (unlikely(parser.capacity() < _batch_size)) {
      parser.valid = false;
      return parser.error = CAPACITY;
  }
  if (unlikely(load_next_batch)) {
    advance(current_buffer_loc);
    n_bytes_parsed += current_buffer_loc;
    _batch_size = (std::min)(_batch_size, remaining());
    _batch_size = internal::trimmed_length_safe_utf8((const char *)buf(), _batch_size);
    auto stage1_is_ok = (error_code)simdjson::active_implementation->stage1(buf(), _batch_size, parser, true);
    if (stage1_is_ok != simdjson::SUCCESS) {
      parser.valid = false;
      return parser.error = stage1_is_ok;
    }
    size_t last_index = internal::find_last_json_buf_idx(buf(), _batch_size, parser);
    if (last_index == 0) {
      if (parser.n_structural_indexes == 0) {
        parser.valid = false;
        return parser.error = EMPTY;
      }
    } else {
      parser.n_structural_indexes = last_index + 1;
    }
    load_next_batch = false;
  } // load_next_batch
  int res = simdjson::active_implementation->stage2(buf(), remaining(), parser, next_json);
  if (likely(res == simdjson::SUCCESS_AND_HAS_MORE)) {
    n_parsed_docs++;
    current_buffer_loc = parser.structural_indexes[next_json];
  } else if (res == simdjson::SUCCESS) {
    n_parsed_docs++;
    if (remaining() > _batch_size) {
      current_buffer_loc = parser.structural_indexes[next_json - 1];
      next_json = 1;
      load_next_batch = true;
      res = simdjson::SUCCESS_AND_HAS_MORE;
    }
  } else {
    printf("E\n");
  }
  return res;
}
#endif // SIMDJSON_THREADS_ENABLED

} // end of namespace simdjson
#endif // SIMDJSON_INLINE_JSONSTREAM_H
/* end file include/simdjson/inline/jsonstream.h */

#endif // SIMDJSON_H
/* end file include/simdjson/inline/jsonstream.h */