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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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tree10027f336435511475e392454359edea8e25895d /toolkit/crashreporter/jsoncpp/include/json/value.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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+// Copyright 2007-2010 Baptiste Lepilleur
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_H_INCLUDED
+#define CPPTL_JSON_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "forwards.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <string>
+#include <vector>
+#include <exception>
+
+#ifndef JSON_USE_CPPTL_SMALLMAP
+#include <map>
+#else
+#include <cpptl/smallmap.h>
+#endif
+#ifdef JSON_USE_CPPTL
+#include <cpptl/forwards.h>
+#endif
+
+//Conditional NORETURN attribute on the throw functions would:
+// a) suppress false positives from static code analysis
+// b) possibly improve optimization opportunities.
+#if !defined(JSONCPP_NORETURN)
+# if defined(_MSC_VER)
+# define JSONCPP_NORETURN __declspec(noreturn)
+# elif defined(__GNUC__)
+# define JSONCPP_NORETURN __attribute__ ((__noreturn__))
+# else
+# define JSONCPP_NORETURN
+# endif
+#endif
+
+// Disable warning C4251: <data member>: <type> needs to have dll-interface to
+// be used by...
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+/** \brief JSON (JavaScript Object Notation).
+ */
+namespace Json {
+
+/** Base class for all exceptions we throw.
+ *
+ * We use nothing but these internally. Of course, STL can throw others.
+ */
+class JSON_API Exception : public std::exception {
+public:
+ Exception(JSONCPP_STRING const& msg);
+ ~Exception() throw() JSONCPP_OVERRIDE;
+ char const* what() const throw() JSONCPP_OVERRIDE;
+protected:
+ JSONCPP_STRING msg_;
+};
+
+/** Exceptions which the user cannot easily avoid.
+ *
+ * E.g. out-of-memory (when we use malloc), stack-overflow, malicious input
+ *
+ * \remark derived from Json::Exception
+ */
+class JSON_API RuntimeError : public Exception {
+public:
+ RuntimeError(JSONCPP_STRING const& msg);
+};
+
+/** Exceptions thrown by JSON_ASSERT/JSON_FAIL macros.
+ *
+ * These are precondition-violations (user bugs) and internal errors (our bugs).
+ *
+ * \remark derived from Json::Exception
+ */
+class JSON_API LogicError : public Exception {
+public:
+ LogicError(JSONCPP_STRING const& msg);
+};
+
+/// used internally
+JSONCPP_NORETURN void throwRuntimeError(JSONCPP_STRING const& msg);
+/// used internally
+JSONCPP_NORETURN void throwLogicError(JSONCPP_STRING const& msg);
+
+/** \brief Type of the value held by a Value object.
+ */
+enum ValueType {
+ nullValue = 0, ///< 'null' value
+ intValue, ///< signed integer value
+ uintValue, ///< unsigned integer value
+ realValue, ///< double value
+ stringValue, ///< UTF-8 string value
+ booleanValue, ///< bool value
+ arrayValue, ///< array value (ordered list)
+ objectValue ///< object value (collection of name/value pairs).
+};
+
+enum CommentPlacement {
+ commentBefore = 0, ///< a comment placed on the line before a value
+ commentAfterOnSameLine, ///< a comment just after a value on the same line
+ commentAfter, ///< a comment on the line after a value (only make sense for
+ /// root value)
+ numberOfCommentPlacement
+};
+
+//# ifdef JSON_USE_CPPTL
+// typedef CppTL::AnyEnumerator<const char *> EnumMemberNames;
+// typedef CppTL::AnyEnumerator<const Value &> EnumValues;
+//# endif
+
+/** \brief Lightweight wrapper to tag static string.
+ *
+ * Value constructor and objectValue member assignement takes advantage of the
+ * StaticString and avoid the cost of string duplication when storing the
+ * string or the member name.
+ *
+ * Example of usage:
+ * \code
+ * Json::Value aValue( StaticString("some text") );
+ * Json::Value object;
+ * static const StaticString code("code");
+ * object[code] = 1234;
+ * \endcode
+ */
+class JSON_API StaticString {
+public:
+ explicit StaticString(const char* czstring) : c_str_(czstring) {}
+
+ operator const char*() const { return c_str_; }
+
+ const char* c_str() const { return c_str_; }
+
+private:
+ const char* c_str_;
+};
+
+/** \brief Represents a <a HREF="http://www.json.org">JSON</a> value.
+ *
+ * This class is a discriminated union wrapper that can represents a:
+ * - signed integer [range: Value::minInt - Value::maxInt]
+ * - unsigned integer (range: 0 - Value::maxUInt)
+ * - double
+ * - UTF-8 string
+ * - boolean
+ * - 'null'
+ * - an ordered list of Value
+ * - collection of name/value pairs (javascript object)
+ *
+ * The type of the held value is represented by a #ValueType and
+ * can be obtained using type().
+ *
+ * Values of an #objectValue or #arrayValue can be accessed using operator[]()
+ * methods.
+ * Non-const methods will automatically create the a #nullValue element
+ * if it does not exist.
+ * The sequence of an #arrayValue will be automatically resized and initialized
+ * with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
+ *
+ * The get() methods can be used to obtain default value in the case the
+ * required element does not exist.
+ *
+ * It is possible to iterate over the list of a #objectValue values using
+ * the getMemberNames() method.
+ *
+ * \note #Value string-length fit in size_t, but keys must be < 2^30.
+ * (The reason is an implementation detail.) A #CharReader will raise an
+ * exception if a bound is exceeded to avoid security holes in your app,
+ * but the Value API does *not* check bounds. That is the responsibility
+ * of the caller.
+ */
+class JSON_API Value {
+ friend class ValueIteratorBase;
+public:
+ typedef std::vector<JSONCPP_STRING> Members;
+ typedef ValueIterator iterator;
+ typedef ValueConstIterator const_iterator;
+ typedef Json::UInt UInt;
+ typedef Json::Int Int;
+#if defined(JSON_HAS_INT64)
+ typedef Json::UInt64 UInt64;
+ typedef Json::Int64 Int64;
+#endif // defined(JSON_HAS_INT64)
+ typedef Json::LargestInt LargestInt;
+ typedef Json::LargestUInt LargestUInt;
+ typedef Json::ArrayIndex ArrayIndex;
+
+ static const Value& null; ///< We regret this reference to a global instance; prefer the simpler Value().
+ static const Value& nullRef; ///< just a kludge for binary-compatibility; same as null
+ static Value const& nullSingleton(); ///< Prefer this to null or nullRef.
+
+ /// Minimum signed integer value that can be stored in a Json::Value.
+ static const LargestInt minLargestInt;
+ /// Maximum signed integer value that can be stored in a Json::Value.
+ static const LargestInt maxLargestInt;
+ /// Maximum unsigned integer value that can be stored in a Json::Value.
+ static const LargestUInt maxLargestUInt;
+
+ /// Minimum signed int value that can be stored in a Json::Value.
+ static const Int minInt;
+ /// Maximum signed int value that can be stored in a Json::Value.
+ static const Int maxInt;
+ /// Maximum unsigned int value that can be stored in a Json::Value.
+ static const UInt maxUInt;
+
+#if defined(JSON_HAS_INT64)
+ /// Minimum signed 64 bits int value that can be stored in a Json::Value.
+ static const Int64 minInt64;
+ /// Maximum signed 64 bits int value that can be stored in a Json::Value.
+ static const Int64 maxInt64;
+ /// Maximum unsigned 64 bits int value that can be stored in a Json::Value.
+ static const UInt64 maxUInt64;
+#endif // defined(JSON_HAS_INT64)
+
+private:
+#ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
+ class CZString {
+ public:
+ enum DuplicationPolicy {
+ noDuplication = 0,
+ duplicate,
+ duplicateOnCopy
+ };
+ CZString(ArrayIndex index);
+ CZString(char const* str, unsigned length, DuplicationPolicy allocate);
+ CZString(CZString const& other);
+#if JSON_HAS_RVALUE_REFERENCES
+ CZString(CZString&& other);
+#endif
+ ~CZString();
+ CZString& operator=(CZString other);
+ bool operator<(CZString const& other) const;
+ bool operator==(CZString const& other) const;
+ ArrayIndex index() const;
+ //const char* c_str() const; ///< \deprecated
+ char const* data() const;
+ unsigned length() const;
+ bool isStaticString() const;
+
+ private:
+ void swap(CZString& other);
+
+ struct StringStorage {
+ unsigned policy_: 2;
+ unsigned length_: 30; // 1GB max
+ };
+
+ char const* cstr_; // actually, a prefixed string, unless policy is noDup
+ union {
+ ArrayIndex index_;
+ StringStorage storage_;
+ };
+ };
+
+public:
+#ifndef JSON_USE_CPPTL_SMALLMAP
+ typedef std::map<CZString, Value> ObjectValues;
+#else
+ typedef CppTL::SmallMap<CZString, Value> ObjectValues;
+#endif // ifndef JSON_USE_CPPTL_SMALLMAP
+#endif // ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
+
+public:
+ /** \brief Create a default Value of the given type.
+
+ This is a very useful constructor.
+ To create an empty array, pass arrayValue.
+ To create an empty object, pass objectValue.
+ Another Value can then be set to this one by assignment.
+This is useful since clear() and resize() will not alter types.
+
+ Examples:
+\code
+Json::Value null_value; // null
+Json::Value arr_value(Json::arrayValue); // []
+Json::Value obj_value(Json::objectValue); // {}
+\endcode
+ */
+ Value(ValueType type = nullValue);
+ Value(Int value);
+ Value(UInt value);
+#if defined(JSON_HAS_INT64)
+ Value(Int64 value);
+ Value(UInt64 value);
+#endif // if defined(JSON_HAS_INT64)
+ Value(double value);
+ Value(const char* value); ///< Copy til first 0. (NULL causes to seg-fault.)
+ Value(const char* begin, const char* end); ///< Copy all, incl zeroes.
+ /** \brief Constructs a value from a static string.
+
+ * Like other value string constructor but do not duplicate the string for
+ * internal storage. The given string must remain alive after the call to this
+ * constructor.
+ * \note This works only for null-terminated strings. (We cannot change the
+ * size of this class, so we have nowhere to store the length,
+ * which might be computed later for various operations.)
+ *
+ * Example of usage:
+ * \code
+ * static StaticString foo("some text");
+ * Json::Value aValue(foo);
+ * \endcode
+ */
+ Value(const StaticString& value);
+ Value(const JSONCPP_STRING& value); ///< Copy data() til size(). Embedded zeroes too.
+#ifdef JSON_USE_CPPTL
+ Value(const CppTL::ConstString& value);
+#endif
+ Value(bool value);
+ /// Deep copy.
+ Value(const Value& other);
+#if JSON_HAS_RVALUE_REFERENCES
+ /// Move constructor
+ Value(Value&& other);
+#endif
+ ~Value();
+
+ /// Deep copy, then swap(other).
+ /// \note Over-write existing comments. To preserve comments, use #swapPayload().
+ Value& operator=(Value other);
+ /// Swap everything.
+ void swap(Value& other);
+ /// Swap values but leave comments and source offsets in place.
+ void swapPayload(Value& other);
+
+ ValueType type() const;
+
+ /// Compare payload only, not comments etc.
+ bool operator<(const Value& other) const;
+ bool operator<=(const Value& other) const;
+ bool operator>=(const Value& other) const;
+ bool operator>(const Value& other) const;
+ bool operator==(const Value& other) const;
+ bool operator!=(const Value& other) const;
+ int compare(const Value& other) const;
+
+ const char* asCString() const; ///< Embedded zeroes could cause you trouble!
+#if JSONCPP_USING_SECURE_MEMORY
+ unsigned getCStringLength() const; //Allows you to understand the length of the CString
+#endif
+ JSONCPP_STRING asString() const; ///< Embedded zeroes are possible.
+ /** Get raw char* of string-value.
+ * \return false if !string. (Seg-fault if str or end are NULL.)
+ */
+ bool getString(
+ char const** begin, char const** end) const;
+#ifdef JSON_USE_CPPTL
+ CppTL::ConstString asConstString() const;
+#endif
+ Int asInt() const;
+ UInt asUInt() const;
+#if defined(JSON_HAS_INT64)
+ Int64 asInt64() const;
+ UInt64 asUInt64() const;
+#endif // if defined(JSON_HAS_INT64)
+ LargestInt asLargestInt() const;
+ LargestUInt asLargestUInt() const;
+ float asFloat() const;
+ double asDouble() const;
+ bool asBool() const;
+
+ bool isNull() const;
+ bool isBool() const;
+ bool isInt() const;
+ bool isInt64() const;
+ bool isUInt() const;
+ bool isUInt64() const;
+ bool isIntegral() const;
+ bool isDouble() const;
+ bool isNumeric() const;
+ bool isString() const;
+ bool isArray() const;
+ bool isObject() const;
+
+ bool isConvertibleTo(ValueType other) const;
+
+ /// Number of values in array or object
+ ArrayIndex size() const;
+
+ /// \brief Return true if empty array, empty object, or null;
+ /// otherwise, false.
+ bool empty() const;
+
+ /// Return isNull()
+ bool operator!() const;
+
+ /// Remove all object members and array elements.
+ /// \pre type() is arrayValue, objectValue, or nullValue
+ /// \post type() is unchanged
+ void clear();
+
+ /// Resize the array to size elements.
+ /// New elements are initialized to null.
+ /// May only be called on nullValue or arrayValue.
+ /// \pre type() is arrayValue or nullValue
+ /// \post type() is arrayValue
+ void resize(ArrayIndex size);
+
+ /// Access an array element (zero based index ).
+ /// If the array contains less than index element, then null value are
+ /// inserted
+ /// in the array so that its size is index+1.
+ /// (You may need to say 'value[0u]' to get your compiler to distinguish
+ /// this from the operator[] which takes a string.)
+ Value& operator[](ArrayIndex index);
+
+ /// Access an array element (zero based index ).
+ /// If the array contains less than index element, then null value are
+ /// inserted
+ /// in the array so that its size is index+1.
+ /// (You may need to say 'value[0u]' to get your compiler to distinguish
+ /// this from the operator[] which takes a string.)
+ Value& operator[](int index);
+
+ /// Access an array element (zero based index )
+ /// (You may need to say 'value[0u]' to get your compiler to distinguish
+ /// this from the operator[] which takes a string.)
+ const Value& operator[](ArrayIndex index) const;
+
+ /// Access an array element (zero based index )
+ /// (You may need to say 'value[0u]' to get your compiler to distinguish
+ /// this from the operator[] which takes a string.)
+ const Value& operator[](int index) const;
+
+ /// If the array contains at least index+1 elements, returns the element
+ /// value,
+ /// otherwise returns defaultValue.
+ Value get(ArrayIndex index, const Value& defaultValue) const;
+ /// Return true if index < size().
+ bool isValidIndex(ArrayIndex index) const;
+ /// \brief Append value to array at the end.
+ ///
+ /// Equivalent to jsonvalue[jsonvalue.size()] = value;
+ Value& append(const Value& value);
+
+ /// Access an object value by name, create a null member if it does not exist.
+ /// \note Because of our implementation, keys are limited to 2^30 -1 chars.
+ /// Exceeding that will cause an exception.
+ Value& operator[](const char* key);
+ /// Access an object value by name, returns null if there is no member with
+ /// that name.
+ const Value& operator[](const char* key) const;
+ /// Access an object value by name, create a null member if it does not exist.
+ /// \param key may contain embedded nulls.
+ Value& operator[](const JSONCPP_STRING& key);
+ /// Access an object value by name, returns null if there is no member with
+ /// that name.
+ /// \param key may contain embedded nulls.
+ const Value& operator[](const JSONCPP_STRING& key) const;
+ /** \brief Access an object value by name, create a null member if it does not
+ exist.
+
+ * If the object has no entry for that name, then the member name used to store
+ * the new entry is not duplicated.
+ * Example of use:
+ * \code
+ * Json::Value object;
+ * static const StaticString code("code");
+ * object[code] = 1234;
+ * \endcode
+ */
+ Value& operator[](const StaticString& key);
+#ifdef JSON_USE_CPPTL
+ /// Access an object value by name, create a null member if it does not exist.
+ Value& operator[](const CppTL::ConstString& key);
+ /// Access an object value by name, returns null if there is no member with
+ /// that name.
+ const Value& operator[](const CppTL::ConstString& key) const;
+#endif
+ /// Return the member named key if it exist, defaultValue otherwise.
+ /// \note deep copy
+ Value get(const char* key, const Value& defaultValue) const;
+ /// Return the member named key if it exist, defaultValue otherwise.
+ /// \note deep copy
+ /// \note key may contain embedded nulls.
+ Value get(const char* begin, const char* end, const Value& defaultValue) const;
+ /// Return the member named key if it exist, defaultValue otherwise.
+ /// \note deep copy
+ /// \param key may contain embedded nulls.
+ Value get(const JSONCPP_STRING& key, const Value& defaultValue) const;
+#ifdef JSON_USE_CPPTL
+ /// Return the member named key if it exist, defaultValue otherwise.
+ /// \note deep copy
+ Value get(const CppTL::ConstString& key, const Value& defaultValue) const;
+#endif
+ /// Most general and efficient version of isMember()const, get()const,
+ /// and operator[]const
+ /// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
+ Value const* find(char const* begin, char const* end) const;
+ /// Most general and efficient version of object-mutators.
+ /// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
+ /// \return non-zero, but JSON_ASSERT if this is neither object nor nullValue.
+ Value const* demand(char const* begin, char const* end);
+ /// \brief Remove and return the named member.
+ ///
+ /// Do nothing if it did not exist.
+ /// \return the removed Value, or null.
+ /// \pre type() is objectValue or nullValue
+ /// \post type() is unchanged
+ /// \deprecated
+ Value removeMember(const char* key);
+ /// Same as removeMember(const char*)
+ /// \param key may contain embedded nulls.
+ /// \deprecated
+ Value removeMember(const JSONCPP_STRING& key);
+ /// Same as removeMember(const char* begin, const char* end, Value* removed),
+ /// but 'key' is null-terminated.
+ bool removeMember(const char* key, Value* removed);
+ /** \brief Remove the named map member.
+
+ Update 'removed' iff removed.
+ \param key may contain embedded nulls.
+ \return true iff removed (no exceptions)
+ */
+ bool removeMember(JSONCPP_STRING const& key, Value* removed);
+ /// Same as removeMember(JSONCPP_STRING const& key, Value* removed)
+ bool removeMember(const char* begin, const char* end, Value* removed);
+ /** \brief Remove the indexed array element.
+
+ O(n) expensive operations.
+ Update 'removed' iff removed.
+ \return true iff removed (no exceptions)
+ */
+ bool removeIndex(ArrayIndex i, Value* removed);
+
+ /// Return true if the object has a member named key.
+ /// \note 'key' must be null-terminated.
+ bool isMember(const char* key) const;
+ /// Return true if the object has a member named key.
+ /// \param key may contain embedded nulls.
+ bool isMember(const JSONCPP_STRING& key) const;
+ /// Same as isMember(JSONCPP_STRING const& key)const
+ bool isMember(const char* begin, const char* end) const;
+#ifdef JSON_USE_CPPTL
+ /// Return true if the object has a member named key.
+ bool isMember(const CppTL::ConstString& key) const;
+#endif
+
+ /// \brief Return a list of the member names.
+ ///
+ /// If null, return an empty list.
+ /// \pre type() is objectValue or nullValue
+ /// \post if type() was nullValue, it remains nullValue
+ Members getMemberNames() const;
+
+ //# ifdef JSON_USE_CPPTL
+ // EnumMemberNames enumMemberNames() const;
+ // EnumValues enumValues() const;
+ //# endif
+
+ /// \deprecated Always pass len.
+ JSONCPP_DEPRECATED("Use setComment(JSONCPP_STRING const&) instead.")
+ void setComment(const char* comment, CommentPlacement placement);
+ /// Comments must be //... or /* ... */
+ void setComment(const char* comment, size_t len, CommentPlacement placement);
+ /// Comments must be //... or /* ... */
+ void setComment(const JSONCPP_STRING& comment, CommentPlacement placement);
+ bool hasComment(CommentPlacement placement) const;
+ /// Include delimiters and embedded newlines.
+ JSONCPP_STRING getComment(CommentPlacement placement) const;
+
+ JSONCPP_STRING toStyledString() const;
+
+ const_iterator begin() const;
+ const_iterator end() const;
+
+ iterator begin();
+ iterator end();
+
+ // Accessors for the [start, limit) range of bytes within the JSON text from
+ // which this value was parsed, if any.
+ void setOffsetStart(ptrdiff_t start);
+ void setOffsetLimit(ptrdiff_t limit);
+ ptrdiff_t getOffsetStart() const;
+ ptrdiff_t getOffsetLimit() const;
+
+private:
+ void initBasic(ValueType type, bool allocated = false);
+
+ Value& resolveReference(const char* key);
+ Value& resolveReference(const char* key, const char* end);
+
+ struct CommentInfo {
+ CommentInfo();
+ ~CommentInfo();
+
+ void setComment(const char* text, size_t len);
+
+ char* comment_;
+ };
+
+ // struct MemberNamesTransform
+ //{
+ // typedef const char *result_type;
+ // const char *operator()( const CZString &name ) const
+ // {
+ // return name.c_str();
+ // }
+ //};
+
+ union ValueHolder {
+ LargestInt int_;
+ LargestUInt uint_;
+ double real_;
+ bool bool_;
+ char* string_; // actually ptr to unsigned, followed by str, unless !allocated_
+ ObjectValues* map_;
+ } value_;
+ ValueType type_ : 8;
+ unsigned int allocated_ : 1; // Notes: if declared as bool, bitfield is useless.
+ // If not allocated_, string_ must be null-terminated.
+ CommentInfo* comments_;
+
+ // [start, limit) byte offsets in the source JSON text from which this Value
+ // was extracted.
+ ptrdiff_t start_;
+ ptrdiff_t limit_;
+};
+
+/** \brief Experimental and untested: represents an element of the "path" to
+ * access a node.
+ */
+class JSON_API PathArgument {
+public:
+ friend class Path;
+
+ PathArgument();
+ PathArgument(ArrayIndex index);
+ PathArgument(const char* key);
+ PathArgument(const JSONCPP_STRING& key);
+
+private:
+ enum Kind {
+ kindNone = 0,
+ kindIndex,
+ kindKey
+ };
+ JSONCPP_STRING key_;
+ ArrayIndex index_;
+ Kind kind_;
+};
+
+/** \brief Experimental and untested: represents a "path" to access a node.
+ *
+ * Syntax:
+ * - "." => root node
+ * - ".[n]" => elements at index 'n' of root node (an array value)
+ * - ".name" => member named 'name' of root node (an object value)
+ * - ".name1.name2.name3"
+ * - ".[0][1][2].name1[3]"
+ * - ".%" => member name is provided as parameter
+ * - ".[%]" => index is provied as parameter
+ */
+class JSON_API Path {
+public:
+ Path(const JSONCPP_STRING& path,
+ const PathArgument& a1 = PathArgument(),
+ const PathArgument& a2 = PathArgument(),
+ const PathArgument& a3 = PathArgument(),
+ const PathArgument& a4 = PathArgument(),
+ const PathArgument& a5 = PathArgument());
+
+ const Value& resolve(const Value& root) const;
+ Value resolve(const Value& root, const Value& defaultValue) const;
+ /// Creates the "path" to access the specified node and returns a reference on
+ /// the node.
+ Value& make(Value& root) const;
+
+private:
+ typedef std::vector<const PathArgument*> InArgs;
+ typedef std::vector<PathArgument> Args;
+
+ void makePath(const JSONCPP_STRING& path, const InArgs& in);
+ void addPathInArg(const JSONCPP_STRING& path,
+ const InArgs& in,
+ InArgs::const_iterator& itInArg,
+ PathArgument::Kind kind);
+ void invalidPath(const JSONCPP_STRING& path, int location);
+
+ Args args_;
+};
+
+/** \brief base class for Value iterators.
+ *
+ */
+class JSON_API ValueIteratorBase {
+public:
+ typedef std::bidirectional_iterator_tag iterator_category;
+ typedef unsigned int size_t;
+ typedef int difference_type;
+ typedef ValueIteratorBase SelfType;
+
+ bool operator==(const SelfType& other) const { return isEqual(other); }
+
+ bool operator!=(const SelfType& other) const { return !isEqual(other); }
+
+ difference_type operator-(const SelfType& other) const {
+ return other.computeDistance(*this);
+ }
+
+ /// Return either the index or the member name of the referenced value as a
+ /// Value.
+ Value key() const;
+
+ /// Return the index of the referenced Value, or -1 if it is not an arrayValue.
+ UInt index() const;
+
+ /// Return the member name of the referenced Value, or "" if it is not an
+ /// objectValue.
+ /// \note Avoid `c_str()` on result, as embedded zeroes are possible.
+ JSONCPP_STRING name() const;
+
+ /// Return the member name of the referenced Value. "" if it is not an
+ /// objectValue.
+ /// \deprecated This cannot be used for UTF-8 strings, since there can be embedded nulls.
+ JSONCPP_DEPRECATED("Use `key = name();` instead.")
+ char const* memberName() const;
+ /// Return the member name of the referenced Value, or NULL if it is not an
+ /// objectValue.
+ /// \note Better version than memberName(). Allows embedded nulls.
+ char const* memberName(char const** end) const;
+
+protected:
+ Value& deref() const;
+
+ void increment();
+
+ void decrement();
+
+ difference_type computeDistance(const SelfType& other) const;
+
+ bool isEqual(const SelfType& other) const;
+
+ void copy(const SelfType& other);
+
+private:
+ Value::ObjectValues::iterator current_;
+ // Indicates that iterator is for a null value.
+ bool isNull_;
+
+public:
+ // For some reason, BORLAND needs these at the end, rather
+ // than earlier. No idea why.
+ ValueIteratorBase();
+ explicit ValueIteratorBase(const Value::ObjectValues::iterator& current);
+};
+
+/** \brief const iterator for object and array value.
+ *
+ */
+class JSON_API ValueConstIterator : public ValueIteratorBase {
+ friend class Value;
+
+public:
+ typedef const Value value_type;
+ //typedef unsigned int size_t;
+ //typedef int difference_type;
+ typedef const Value& reference;
+ typedef const Value* pointer;
+ typedef ValueConstIterator SelfType;
+
+ ValueConstIterator();
+ ValueConstIterator(ValueIterator const& other);
+
+private:
+/*! \internal Use by Value to create an iterator.
+ */
+ explicit ValueConstIterator(const Value::ObjectValues::iterator& current);
+public:
+ SelfType& operator=(const ValueIteratorBase& other);
+
+ SelfType operator++(int) {
+ SelfType temp(*this);
+ ++*this;
+ return temp;
+ }
+
+ SelfType operator--(int) {
+ SelfType temp(*this);
+ --*this;
+ return temp;
+ }
+
+ SelfType& operator--() {
+ decrement();
+ return *this;
+ }
+
+ SelfType& operator++() {
+ increment();
+ return *this;
+ }
+
+ reference operator*() const { return deref(); }
+
+ pointer operator->() const { return &deref(); }
+};
+
+/** \brief Iterator for object and array value.
+ */
+class JSON_API ValueIterator : public ValueIteratorBase {
+ friend class Value;
+
+public:
+ typedef Value value_type;
+ typedef unsigned int size_t;
+ typedef int difference_type;
+ typedef Value& reference;
+ typedef Value* pointer;
+ typedef ValueIterator SelfType;
+
+ ValueIterator();
+ explicit ValueIterator(const ValueConstIterator& other);
+ ValueIterator(const ValueIterator& other);
+
+private:
+/*! \internal Use by Value to create an iterator.
+ */
+ explicit ValueIterator(const Value::ObjectValues::iterator& current);
+public:
+ SelfType& operator=(const SelfType& other);
+
+ SelfType operator++(int) {
+ SelfType temp(*this);
+ ++*this;
+ return temp;
+ }
+
+ SelfType operator--(int) {
+ SelfType temp(*this);
+ --*this;
+ return temp;
+ }
+
+ SelfType& operator--() {
+ decrement();
+ return *this;
+ }
+
+ SelfType& operator++() {
+ increment();
+ return *this;
+ }
+
+ reference operator*() const { return deref(); }
+
+ pointer operator->() const { return &deref(); }
+};
+
+} // namespace Json
+
+
+namespace std {
+/// Specialize std::swap() for Json::Value.
+template<>
+inline void swap(Json::Value& a, Json::Value& b) { a.swap(b); }
+}
+
+
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(pop)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#endif // CPPTL_JSON_H_INCLUDED