Check in jsoncpp.
Check in ab1e40f3bce061ea6f9bdc60351d6cde2a4f872b from
https://chromium.googlesource.com/external/jsoncpp/jsoncpp.git
This is the version used by Skia's test suite.
BUG:15087860
Change-Id: I16bf6ac927fa025b6527b48221d749484e1a04f4
diff --git a/src/lib_json/json_value.cpp b/src/lib_json/json_value.cpp
new file mode 100644
index 0000000..91f312e
--- /dev/null
+++ b/src/lib_json/json_value.cpp
@@ -0,0 +1,1920 @@
+// Copyright 2011 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
+
+#if !defined(JSON_IS_AMALGAMATION)
+# include <json/assertions.h>
+# include <json/value.h>
+# include <json/writer.h>
+# ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
+# include "json_batchallocator.h"
+# endif // #ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <math.h>
+#include <sstream>
+#include <utility>
+#include <stdexcept>
+#include <cstring>
+#include <cassert>
+#ifdef JSON_USE_CPPTL
+# include <cpptl/conststring.h>
+#endif
+#include <cstddef> // size_t
+
+#define JSON_ASSERT_UNREACHABLE assert( false )
+
+namespace Json {
+
+const Value Value::null;
+const Int Value::minInt = Int( ~(UInt(-1)/2) );
+const Int Value::maxInt = Int( UInt(-1)/2 );
+const UInt Value::maxUInt = UInt(-1);
+# if defined(JSON_HAS_INT64)
+const Int64 Value::minInt64 = Int64( ~(UInt64(-1)/2) );
+const Int64 Value::maxInt64 = Int64( UInt64(-1)/2 );
+const UInt64 Value::maxUInt64 = UInt64(-1);
+// The constant is hard-coded because some compiler have trouble
+// converting Value::maxUInt64 to a double correctly (AIX/xlC).
+// Assumes that UInt64 is a 64 bits integer.
+static const double maxUInt64AsDouble = 18446744073709551615.0;
+#endif // defined(JSON_HAS_INT64)
+const LargestInt Value::minLargestInt = LargestInt( ~(LargestUInt(-1)/2) );
+const LargestInt Value::maxLargestInt = LargestInt( LargestUInt(-1)/2 );
+const LargestUInt Value::maxLargestUInt = LargestUInt(-1);
+
+
+/// Unknown size marker
+static const unsigned int unknown = (unsigned)-1;
+
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+template <typename T, typename U>
+static inline bool InRange(double d, T min, U max) {
+ return d >= min && d <= max;
+}
+#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+static inline double integerToDouble( Json::UInt64 value )
+{
+ return static_cast<double>( Int64(value/2) ) * 2.0 + Int64(value & 1);
+}
+
+template<typename T>
+static inline double integerToDouble( T value )
+{
+ return static_cast<double>( value );
+}
+
+template <typename T, typename U>
+static inline bool InRange(double d, T min, U max) {
+ return d >= integerToDouble(min) && d <= integerToDouble(max);
+}
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+
+
+/** Duplicates the specified string value.
+ * @param value Pointer to the string to duplicate. Must be zero-terminated if
+ * length is "unknown".
+ * @param length Length of the value. if equals to unknown, then it will be
+ * computed using strlen(value).
+ * @return Pointer on the duplicate instance of string.
+ */
+static inline char *
+duplicateStringValue( const char *value,
+ unsigned int length = unknown )
+{
+ if ( length == unknown )
+ length = (unsigned int)strlen(value);
+
+ // Avoid an integer overflow in the call to malloc below by limiting length
+ // to a sane value.
+ if (length >= (unsigned)Value::maxInt)
+ length = Value::maxInt - 1;
+
+ char *newString = static_cast<char *>( malloc( length + 1 ) );
+ JSON_ASSERT_MESSAGE( newString != 0, "Failed to allocate string value buffer" );
+ memcpy( newString, value, length );
+ newString[length] = 0;
+ return newString;
+}
+
+
+/** Free the string duplicated by duplicateStringValue().
+ */
+static inline void
+releaseStringValue( char *value )
+{
+ if ( value )
+ free( value );
+}
+
+} // namespace Json
+
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// ValueInternals...
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+#if !defined(JSON_IS_AMALGAMATION)
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+# include "json_internalarray.inl"
+# include "json_internalmap.inl"
+# endif // JSON_VALUE_USE_INTERNAL_MAP
+
+# include "json_valueiterator.inl"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::CommentInfo
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+
+Value::CommentInfo::CommentInfo()
+ : comment_( 0 )
+{
+}
+
+Value::CommentInfo::~CommentInfo()
+{
+ if ( comment_ )
+ releaseStringValue( comment_ );
+}
+
+
+void
+Value::CommentInfo::setComment( const char *text )
+{
+ if ( comment_ )
+ releaseStringValue( comment_ );
+ JSON_ASSERT( text != 0 );
+ JSON_ASSERT_MESSAGE( text[0]=='\0' || text[0]=='/', "Comments must start with /");
+ // It seems that /**/ style comments are acceptable as well.
+ comment_ = duplicateStringValue( text );
+}
+
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::CZString
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+# ifndef JSON_VALUE_USE_INTERNAL_MAP
+
+// Notes: index_ indicates if the string was allocated when
+// a string is stored.
+
+Value::CZString::CZString( ArrayIndex index )
+ : cstr_( 0 )
+ , index_( index )
+{
+}
+
+Value::CZString::CZString( const char *cstr, DuplicationPolicy allocate )
+ : cstr_( allocate == duplicate ? duplicateStringValue(cstr)
+ : cstr )
+ , index_( allocate )
+{
+}
+
+Value::CZString::CZString( const CZString &other )
+: cstr_( other.index_ != noDuplication && other.cstr_ != 0
+ ? duplicateStringValue( other.cstr_ )
+ : other.cstr_ )
+ , index_( other.cstr_ ? (other.index_ == noDuplication ? noDuplication : duplicate)
+ : other.index_ )
+{
+}
+
+Value::CZString::~CZString()
+{
+ if ( cstr_ && index_ == duplicate )
+ releaseStringValue( const_cast<char *>( cstr_ ) );
+}
+
+void
+Value::CZString::swap( CZString &other )
+{
+ std::swap( cstr_, other.cstr_ );
+ std::swap( index_, other.index_ );
+}
+
+Value::CZString &
+Value::CZString::operator =( const CZString &other )
+{
+ CZString temp( other );
+ swap( temp );
+ return *this;
+}
+
+bool
+Value::CZString::operator<( const CZString &other ) const
+{
+ if ( cstr_ )
+ return strcmp( cstr_, other.cstr_ ) < 0;
+ return index_ < other.index_;
+}
+
+bool
+Value::CZString::operator==( const CZString &other ) const
+{
+ if ( cstr_ )
+ return strcmp( cstr_, other.cstr_ ) == 0;
+ return index_ == other.index_;
+}
+
+
+ArrayIndex
+Value::CZString::index() const
+{
+ return index_;
+}
+
+
+const char *
+Value::CZString::c_str() const
+{
+ return cstr_;
+}
+
+bool
+Value::CZString::isStaticString() const
+{
+ return index_ == noDuplication;
+}
+
+#endif // ifndef JSON_VALUE_USE_INTERNAL_MAP
+
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::Value
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+/*! \internal Default constructor initialization must be equivalent to:
+ * memset( this, 0, sizeof(Value) )
+ * This optimization is used in ValueInternalMap fast allocator.
+ */
+Value::Value( ValueType type )
+ : type_( type )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ switch ( type )
+ {
+ case nullValue:
+ break;
+ case intValue:
+ case uintValue:
+ value_.int_ = 0;
+ break;
+ case realValue:
+ value_.real_ = 0.0;
+ break;
+ case stringValue:
+ value_.string_ = 0;
+ break;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ value_.map_ = new ObjectValues();
+ break;
+#else
+ case arrayValue:
+ value_.array_ = arrayAllocator()->newArray();
+ break;
+ case objectValue:
+ value_.map_ = mapAllocator()->newMap();
+ break;
+#endif
+ case booleanValue:
+ value_.bool_ = false;
+ break;
+ default:
+ JSON_ASSERT_UNREACHABLE;
+ }
+}
+
+
+Value::Value( UInt value )
+ : type_( uintValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.uint_ = value;
+}
+
+Value::Value( Int value )
+ : type_( intValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.int_ = value;
+}
+
+
+# if defined(JSON_HAS_INT64)
+Value::Value( Int64 value )
+ : type_( intValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.int_ = value;
+}
+
+
+Value::Value( UInt64 value )
+ : type_( uintValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.uint_ = value;
+}
+#endif // defined(JSON_HAS_INT64)
+
+Value::Value( double value )
+ : type_( realValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.real_ = value;
+}
+
+Value::Value( const char *value )
+ : type_( stringValue )
+ , allocated_( true )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.string_ = duplicateStringValue( value );
+}
+
+
+Value::Value( const char *beginValue,
+ const char *endValue )
+ : type_( stringValue )
+ , allocated_( true )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.string_ = duplicateStringValue( beginValue,
+ (unsigned int)(endValue - beginValue) );
+}
+
+
+Value::Value( const std::string &value )
+ : type_( stringValue )
+ , allocated_( true )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.string_ = duplicateStringValue( value.c_str(),
+ (unsigned int)value.length() );
+
+}
+
+Value::Value( const StaticString &value )
+ : type_( stringValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.string_ = const_cast<char *>( value.c_str() );
+}
+
+
+# ifdef JSON_USE_CPPTL
+Value::Value( const CppTL::ConstString &value )
+ : type_( stringValue )
+ , allocated_( true )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.string_ = duplicateStringValue( value, value.length() );
+}
+# endif
+
+Value::Value( bool value )
+ : type_( booleanValue )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ value_.bool_ = value;
+}
+
+
+Value::Value( const Value &other )
+ : type_( other.type_ )
+ , allocated_( false )
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
+ , itemIsUsed_( 0 )
+#endif
+ , comments_( 0 )
+{
+ switch ( type_ )
+ {
+ case nullValue:
+ case intValue:
+ case uintValue:
+ case realValue:
+ case booleanValue:
+ value_ = other.value_;
+ break;
+ case stringValue:
+ if ( other.value_.string_ )
+ {
+ value_.string_ = duplicateStringValue( other.value_.string_ );
+ allocated_ = true;
+ }
+ else
+ value_.string_ = 0;
+ break;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ value_.map_ = new ObjectValues( *other.value_.map_ );
+ break;
+#else
+ case arrayValue:
+ value_.array_ = arrayAllocator()->newArrayCopy( *other.value_.array_ );
+ break;
+ case objectValue:
+ value_.map_ = mapAllocator()->newMapCopy( *other.value_.map_ );
+ break;
+#endif
+ default:
+ JSON_ASSERT_UNREACHABLE;
+ }
+ if ( other.comments_ )
+ {
+ comments_ = new CommentInfo[numberOfCommentPlacement];
+ for ( int comment =0; comment < numberOfCommentPlacement; ++comment )
+ {
+ const CommentInfo &otherComment = other.comments_[comment];
+ if ( otherComment.comment_ )
+ comments_[comment].setComment( otherComment.comment_ );
+ }
+ }
+}
+
+
+Value::~Value()
+{
+ switch ( type_ )
+ {
+ case nullValue:
+ case intValue:
+ case uintValue:
+ case realValue:
+ case booleanValue:
+ break;
+ case stringValue:
+ if ( allocated_ )
+ releaseStringValue( value_.string_ );
+ break;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ delete value_.map_;
+ break;
+#else
+ case arrayValue:
+ arrayAllocator()->destructArray( value_.array_ );
+ break;
+ case objectValue:
+ mapAllocator()->destructMap( value_.map_ );
+ break;
+#endif
+ default:
+ JSON_ASSERT_UNREACHABLE;
+ }
+
+ if ( comments_ )
+ delete[] comments_;
+}
+
+Value &
+Value::operator=( const Value &other )
+{
+ Value temp( other );
+ swap( temp );
+ return *this;
+}
+
+void
+Value::swap( Value &other )
+{
+ ValueType temp = type_;
+ type_ = other.type_;
+ other.type_ = temp;
+ std::swap( value_, other.value_ );
+ int temp2 = allocated_;
+ allocated_ = other.allocated_;
+ other.allocated_ = temp2;
+}
+
+ValueType
+Value::type() const
+{
+ return type_;
+}
+
+
+int
+Value::compare( const Value &other ) const
+{
+ if ( *this < other )
+ return -1;
+ if ( *this > other )
+ return 1;
+ return 0;
+}
+
+
+bool
+Value::operator <( const Value &other ) const
+{
+ int typeDelta = type_ - other.type_;
+ if ( typeDelta )
+ return typeDelta < 0 ? true : false;
+ switch ( type_ )
+ {
+ case nullValue:
+ return false;
+ case intValue:
+ return value_.int_ < other.value_.int_;
+ case uintValue:
+ return value_.uint_ < other.value_.uint_;
+ case realValue:
+ return value_.real_ < other.value_.real_;
+ case booleanValue:
+ return value_.bool_ < other.value_.bool_;
+ case stringValue:
+ return ( value_.string_ == 0 && other.value_.string_ )
+ || ( other.value_.string_
+ && value_.string_
+ && strcmp( value_.string_, other.value_.string_ ) < 0 );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ {
+ int delta = int( value_.map_->size() - other.value_.map_->size() );
+ if ( delta )
+ return delta < 0;
+ return (*value_.map_) < (*other.value_.map_);
+ }
+#else
+ case arrayValue:
+ return value_.array_->compare( *(other.value_.array_) ) < 0;
+ case objectValue:
+ return value_.map_->compare( *(other.value_.map_) ) < 0;
+#endif
+ default:
+ JSON_ASSERT_UNREACHABLE;
+ }
+ return false; // unreachable
+}
+
+bool
+Value::operator <=( const Value &other ) const
+{
+ return !(other < *this);
+}
+
+bool
+Value::operator >=( const Value &other ) const
+{
+ return !(*this < other);
+}
+
+bool
+Value::operator >( const Value &other ) const
+{
+ return other < *this;
+}
+
+bool
+Value::operator ==( const Value &other ) const
+{
+ //if ( type_ != other.type_ )
+ // GCC 2.95.3 says:
+ // attempt to take address of bit-field structure member `Json::Value::type_'
+ // Beats me, but a temp solves the problem.
+ int temp = other.type_;
+ if ( type_ != temp )
+ return false;
+ switch ( type_ )
+ {
+ case nullValue:
+ return true;
+ case intValue:
+ return value_.int_ == other.value_.int_;
+ case uintValue:
+ return value_.uint_ == other.value_.uint_;
+ case realValue:
+ return value_.real_ == other.value_.real_;
+ case booleanValue:
+ return value_.bool_ == other.value_.bool_;
+ case stringValue:
+ return ( value_.string_ == other.value_.string_ )
+ || ( other.value_.string_
+ && value_.string_
+ && strcmp( value_.string_, other.value_.string_ ) == 0 );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ return value_.map_->size() == other.value_.map_->size()
+ && (*value_.map_) == (*other.value_.map_);
+#else
+ case arrayValue:
+ return value_.array_->compare( *(other.value_.array_) ) == 0;
+ case objectValue:
+ return value_.map_->compare( *(other.value_.map_) ) == 0;
+#endif
+ default:
+ JSON_ASSERT_UNREACHABLE;
+ }
+ return false; // unreachable
+}
+
+bool
+Value::operator !=( const Value &other ) const
+{
+ return !( *this == other );
+}
+
+const char *
+Value::asCString() const
+{
+ JSON_ASSERT( type_ == stringValue );
+ return value_.string_;
+}
+
+
+std::string
+Value::asString() const
+{
+ switch ( type_ )
+ {
+ case nullValue:
+ return "";
+ case stringValue:
+ return value_.string_ ? value_.string_ : "";
+ case booleanValue:
+ return value_.bool_ ? "true" : "false";
+ case intValue:
+ return valueToString( value_.int_ );
+ case uintValue:
+ return valueToString( value_.uint_ );
+ case realValue:
+ return valueToString( value_.real_ );
+ default:
+ JSON_FAIL_MESSAGE( "Type is not convertible to string" );
+ }
+}
+
+# ifdef JSON_USE_CPPTL
+CppTL::ConstString
+Value::asConstString() const
+{
+ return CppTL::ConstString( asString().c_str() );
+}
+# endif
+
+
+Value::Int
+Value::asInt() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ JSON_ASSERT_MESSAGE(isInt(), "LargestInt out of Int range");
+ return Int(value_.int_);
+ case uintValue:
+ JSON_ASSERT_MESSAGE(isInt(), "LargestUInt out of Int range");
+ return Int(value_.uint_);
+ case realValue:
+ JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt, maxInt), "double out of Int range");
+ return Int(value_.real_);
+ case nullValue:
+ return 0;
+ case booleanValue:
+ return value_.bool_ ? 1 : 0;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to Int.");
+}
+
+
+Value::UInt
+Value::asUInt() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ JSON_ASSERT_MESSAGE(isUInt(), "LargestInt out of UInt range");
+ return UInt(value_.int_);
+ case uintValue:
+ JSON_ASSERT_MESSAGE(isUInt(), "LargestUInt out of UInt range");
+ return UInt(value_.uint_);
+ case realValue:
+ JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt), "double out of UInt range");
+ return UInt( value_.real_ );
+ case nullValue:
+ return 0;
+ case booleanValue:
+ return value_.bool_ ? 1 : 0;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to UInt.");
+}
+
+
+# if defined(JSON_HAS_INT64)
+
+Value::Int64
+Value::asInt64() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ return Int64(value_.int_);
+ case uintValue:
+ JSON_ASSERT_MESSAGE(isInt64(), "LargestUInt out of Int64 range");
+ return Int64(value_.uint_);
+ case realValue:
+ JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt64, maxInt64), "double out of Int64 range");
+ return Int64(value_.real_);
+ case nullValue:
+ return 0;
+ case booleanValue:
+ return value_.bool_ ? 1 : 0;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to Int64.");
+}
+
+
+Value::UInt64
+Value::asUInt64() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ JSON_ASSERT_MESSAGE(isUInt64(), "LargestInt out of UInt64 range");
+ return UInt64(value_.int_);
+ case uintValue:
+ return UInt64(value_.uint_);
+ case realValue:
+ JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt64), "double out of UInt64 range");
+ return UInt64( value_.real_ );
+ case nullValue:
+ return 0;
+ case booleanValue:
+ return value_.bool_ ? 1 : 0;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to UInt64.");
+}
+# endif // if defined(JSON_HAS_INT64)
+
+
+LargestInt
+Value::asLargestInt() const
+{
+#if defined(JSON_NO_INT64)
+ return asInt();
+#else
+ return asInt64();
+#endif
+}
+
+
+LargestUInt
+Value::asLargestUInt() const
+{
+#if defined(JSON_NO_INT64)
+ return asUInt();
+#else
+ return asUInt64();
+#endif
+}
+
+
+double
+Value::asDouble() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ return static_cast<double>( value_.int_ );
+ case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return static_cast<double>( value_.uint_ );
+#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return integerToDouble( value_.uint_ );
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ case realValue:
+ return value_.real_;
+ case nullValue:
+ return 0.0;
+ case booleanValue:
+ return value_.bool_ ? 1.0 : 0.0;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to double.");
+}
+
+float
+Value::asFloat() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ return static_cast<float>( value_.int_ );
+ case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return static_cast<float>( value_.uint_ );
+#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return integerToDouble( value_.uint_ );
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ case realValue:
+ return static_cast<float>( value_.real_ );
+ case nullValue:
+ return 0.0;
+ case booleanValue:
+ return value_.bool_ ? 1.0f : 0.0f;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to float.");
+}
+
+bool
+Value::asBool() const
+{
+ switch ( type_ )
+ {
+ case booleanValue:
+ return value_.bool_;
+ case nullValue:
+ return false;
+ case intValue:
+ return value_.int_ ? true : false;
+ case uintValue:
+ return value_.uint_ ? true : false;
+ case realValue:
+ return value_.real_ ? true : false;
+ default:
+ break;
+ }
+ JSON_FAIL_MESSAGE("Value is not convertible to bool.");
+}
+
+
+bool
+Value::isConvertibleTo( ValueType other ) const
+{
+ switch ( other )
+ {
+ case nullValue:
+ return ( isNumeric() && asDouble() == 0.0 )
+ || ( type_ == booleanValue && value_.bool_ == false )
+ || ( type_ == stringValue && asString() == "" )
+ || ( type_ == arrayValue && value_.map_->size() == 0 )
+ || ( type_ == objectValue && value_.map_->size() == 0 )
+ || type_ == nullValue;
+ case intValue:
+ return isInt()
+ || (type_ == realValue && InRange(value_.real_, minInt, maxInt))
+ || type_ == booleanValue
+ || type_ == nullValue;
+ case uintValue:
+ return isUInt()
+ || (type_ == realValue && InRange(value_.real_, 0, maxUInt))
+ || type_ == booleanValue
+ || type_ == nullValue;
+ case realValue:
+ return isNumeric()
+ || type_ == booleanValue
+ || type_ == nullValue;
+ case booleanValue:
+ return isNumeric()
+ || type_ == booleanValue
+ || type_ == nullValue;
+ case stringValue:
+ return isNumeric()
+ || type_ == booleanValue
+ || type_ == stringValue
+ || type_ == nullValue;
+ case arrayValue:
+ return type_ == arrayValue
+ || type_ == nullValue;
+ case objectValue:
+ return type_ == objectValue
+ || type_ == nullValue;
+ }
+ JSON_ASSERT_UNREACHABLE;
+ return false;
+}
+
+
+/// Number of values in array or object
+ArrayIndex
+Value::size() const
+{
+ switch ( type_ )
+ {
+ case nullValue:
+ case intValue:
+ case uintValue:
+ case realValue:
+ case booleanValue:
+ case stringValue:
+ return 0;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue: // size of the array is highest index + 1
+ if ( !value_.map_->empty() )
+ {
+ ObjectValues::const_iterator itLast = value_.map_->end();
+ --itLast;
+ return (*itLast).first.index()+1;
+ }
+ return 0;
+ case objectValue:
+ return ArrayIndex( value_.map_->size() );
+#else
+ case arrayValue:
+ return Int( value_.array_->size() );
+ case objectValue:
+ return Int( value_.map_->size() );
+#endif
+ }
+ JSON_ASSERT_UNREACHABLE;
+ return 0; // unreachable;
+}
+
+
+bool
+Value::empty() const
+{
+ if ( isNull() || isArray() || isObject() )
+ return size() == 0u;
+ else
+ return false;
+}
+
+
+bool
+Value::operator!() const
+{
+ return isNull();
+}
+
+
+void
+Value::clear()
+{
+ JSON_ASSERT( type_ == nullValue || type_ == arrayValue || type_ == objectValue );
+
+ switch ( type_ )
+ {
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ case objectValue:
+ value_.map_->clear();
+ break;
+#else
+ case arrayValue:
+ value_.array_->clear();
+ break;
+ case objectValue:
+ value_.map_->clear();
+ break;
+#endif
+ default:
+ break;
+ }
+}
+
+void
+Value::resize( ArrayIndex newSize )
+{
+ JSON_ASSERT( type_ == nullValue || type_ == arrayValue );
+ if ( type_ == nullValue )
+ *this = Value( arrayValue );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ ArrayIndex oldSize = size();
+ if ( newSize == 0 )
+ clear();
+ else if ( newSize > oldSize )
+ (*this)[ newSize - 1 ];
+ else
+ {
+ for ( ArrayIndex index = newSize; index < oldSize; ++index )
+ {
+ value_.map_->erase( index );
+ }
+ assert( size() == newSize );
+ }
+#else
+ value_.array_->resize( newSize );
+#endif
+}
+
+
+Value &
+Value::operator[]( ArrayIndex index )
+{
+ JSON_ASSERT( type_ == nullValue || type_ == arrayValue );
+ if ( type_ == nullValue )
+ *this = Value( arrayValue );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ CZString key( index );
+ ObjectValues::iterator it = value_.map_->lower_bound( key );
+ if ( it != value_.map_->end() && (*it).first == key )
+ return (*it).second;
+
+ ObjectValues::value_type defaultValue( key, null );
+ it = value_.map_->insert( it, defaultValue );
+ return (*it).second;
+#else
+ return value_.array_->resolveReference( index );
+#endif
+}
+
+
+Value &
+Value::operator[]( int index )
+{
+ JSON_ASSERT( index >= 0 );
+ return (*this)[ ArrayIndex(index) ];
+}
+
+
+const Value &
+Value::operator[]( ArrayIndex index ) const
+{
+ JSON_ASSERT( type_ == nullValue || type_ == arrayValue );
+ if ( type_ == nullValue )
+ return null;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ CZString key( index );
+ ObjectValues::const_iterator it = value_.map_->find( key );
+ if ( it == value_.map_->end() )
+ return null;
+ return (*it).second;
+#else
+ Value *value = value_.array_->find( index );
+ return value ? *value : null;
+#endif
+}
+
+
+const Value &
+Value::operator[]( int index ) const
+{
+ JSON_ASSERT( index >= 0 );
+ return (*this)[ ArrayIndex(index) ];
+}
+
+
+Value &
+Value::operator[]( const char *key )
+{
+ return resolveReference( key, false );
+}
+
+
+Value &
+Value::resolveReference( const char *key,
+ bool isStatic )
+{
+ JSON_ASSERT( type_ == nullValue || type_ == objectValue );
+ if ( type_ == nullValue )
+ *this = Value( objectValue );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ CZString actualKey( key, isStatic ? CZString::noDuplication
+ : CZString::duplicateOnCopy );
+ ObjectValues::iterator it = value_.map_->lower_bound( actualKey );
+ if ( it != value_.map_->end() && (*it).first == actualKey )
+ return (*it).second;
+
+ ObjectValues::value_type defaultValue( actualKey, null );
+ it = value_.map_->insert( it, defaultValue );
+ Value &value = (*it).second;
+ return value;
+#else
+ return value_.map_->resolveReference( key, isStatic );
+#endif
+}
+
+
+Value
+Value::get( ArrayIndex index,
+ const Value &defaultValue ) const
+{
+ const Value *value = &((*this)[index]);
+ return value == &null ? defaultValue : *value;
+}
+
+
+bool
+Value::isValidIndex( ArrayIndex index ) const
+{
+ return index < size();
+}
+
+
+
+const Value &
+Value::operator[]( const char *key ) const
+{
+ JSON_ASSERT( type_ == nullValue || type_ == objectValue );
+ if ( type_ == nullValue )
+ return null;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ CZString actualKey( key, CZString::noDuplication );
+ ObjectValues::const_iterator it = value_.map_->find( actualKey );
+ if ( it == value_.map_->end() )
+ return null;
+ return (*it).second;
+#else
+ const Value *value = value_.map_->find( key );
+ return value ? *value : null;
+#endif
+}
+
+
+Value &
+Value::operator[]( const std::string &key )
+{
+ return (*this)[ key.c_str() ];
+}
+
+
+const Value &
+Value::operator[]( const std::string &key ) const
+{
+ return (*this)[ key.c_str() ];
+}
+
+Value &
+Value::operator[]( const StaticString &key )
+{
+ return resolveReference( key, true );
+}
+
+
+# ifdef JSON_USE_CPPTL
+Value &
+Value::operator[]( const CppTL::ConstString &key )
+{
+ return (*this)[ key.c_str() ];
+}
+
+
+const Value &
+Value::operator[]( const CppTL::ConstString &key ) const
+{
+ return (*this)[ key.c_str() ];
+}
+# endif
+
+
+Value &
+Value::append( const Value &value )
+{
+ return (*this)[size()] = value;
+}
+
+
+Value
+Value::get( const char *key,
+ const Value &defaultValue ) const
+{
+ const Value *value = &((*this)[key]);
+ return value == &null ? defaultValue : *value;
+}
+
+
+Value
+Value::get( const std::string &key,
+ const Value &defaultValue ) const
+{
+ return get( key.c_str(), defaultValue );
+}
+
+Value
+Value::removeMember( const char* key )
+{
+ JSON_ASSERT( type_ == nullValue || type_ == objectValue );
+ if ( type_ == nullValue )
+ return null;
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ CZString actualKey( key, CZString::noDuplication );
+ ObjectValues::iterator it = value_.map_->find( actualKey );
+ if ( it == value_.map_->end() )
+ return null;
+ Value old(it->second);
+ value_.map_->erase(it);
+ return old;
+#else
+ Value *value = value_.map_->find( key );
+ if (value){
+ Value old(*value);
+ value_.map_.remove( key );
+ return old;
+ } else {
+ return null;
+ }
+#endif
+}
+
+Value
+Value::removeMember( const std::string &key )
+{
+ return removeMember( key.c_str() );
+}
+
+# ifdef JSON_USE_CPPTL
+Value
+Value::get( const CppTL::ConstString &key,
+ const Value &defaultValue ) const
+{
+ return get( key.c_str(), defaultValue );
+}
+# endif
+
+bool
+Value::isMember( const char *key ) const
+{
+ const Value *value = &((*this)[key]);
+ return value != &null;
+}
+
+
+bool
+Value::isMember( const std::string &key ) const
+{
+ return isMember( key.c_str() );
+}
+
+
+# ifdef JSON_USE_CPPTL
+bool
+Value::isMember( const CppTL::ConstString &key ) const
+{
+ return isMember( key.c_str() );
+}
+#endif
+
+Value::Members
+Value::getMemberNames() const
+{
+ JSON_ASSERT( type_ == nullValue || type_ == objectValue );
+ if ( type_ == nullValue )
+ return Value::Members();
+ Members members;
+ members.reserve( value_.map_->size() );
+#ifndef JSON_VALUE_USE_INTERNAL_MAP
+ ObjectValues::const_iterator it = value_.map_->begin();
+ ObjectValues::const_iterator itEnd = value_.map_->end();
+ for ( ; it != itEnd; ++it )
+ members.push_back( std::string( (*it).first.c_str() ) );
+#else
+ ValueInternalMap::IteratorState it;
+ ValueInternalMap::IteratorState itEnd;
+ value_.map_->makeBeginIterator( it );
+ value_.map_->makeEndIterator( itEnd );
+ for ( ; !ValueInternalMap::equals( it, itEnd ); ValueInternalMap::increment(it) )
+ members.push_back( std::string( ValueInternalMap::key( it ) ) );
+#endif
+ return members;
+}
+//
+//# ifdef JSON_USE_CPPTL
+//EnumMemberNames
+//Value::enumMemberNames() const
+//{
+// if ( type_ == objectValue )
+// {
+// return CppTL::Enum::any( CppTL::Enum::transform(
+// CppTL::Enum::keys( *(value_.map_), CppTL::Type<const CZString &>() ),
+// MemberNamesTransform() ) );
+// }
+// return EnumMemberNames();
+//}
+//
+//
+//EnumValues
+//Value::enumValues() const
+//{
+// if ( type_ == objectValue || type_ == arrayValue )
+// return CppTL::Enum::anyValues( *(value_.map_),
+// CppTL::Type<const Value &>() );
+// return EnumValues();
+//}
+//
+//# endif
+
+static bool IsIntegral(double d) {
+ double integral_part;
+ return modf(d, &integral_part) == 0.0;
+}
+
+
+bool
+Value::isNull() const
+{
+ return type_ == nullValue;
+}
+
+
+bool
+Value::isBool() const
+{
+ return type_ == booleanValue;
+}
+
+
+bool
+Value::isInt() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ return value_.int_ >= minInt && value_.int_ <= maxInt;
+ case uintValue:
+ return value_.uint_ <= UInt(maxInt);
+ case realValue:
+ return value_.real_ >= minInt &&
+ value_.real_ <= maxInt &&
+ IsIntegral(value_.real_);
+ default:
+ break;
+ }
+ return false;
+}
+
+
+bool
+Value::isUInt() const
+{
+ switch ( type_ )
+ {
+ case intValue:
+ return value_.int_ >= 0 && LargestUInt(value_.int_) <= LargestUInt(maxUInt);
+ case uintValue:
+ return value_.uint_ <= maxUInt;
+ case realValue:
+ return value_.real_ >= 0 &&
+ value_.real_ <= maxUInt &&
+ IsIntegral(value_.real_);
+ default:
+ break;
+ }
+ return false;
+}
+
+bool
+Value::isInt64() const
+{
+# if defined(JSON_HAS_INT64)
+ switch ( type_ )
+ {
+ case intValue:
+ return true;
+ case uintValue:
+ return value_.uint_ <= UInt64(maxInt64);
+ case realValue:
+ // Note that maxInt64 (= 2^63 - 1) is not exactly representable as a
+ // double, so double(maxInt64) will be rounded up to 2^63. Therefore we
+ // require the value to be strictly less than the limit.
+ return value_.real_ >= double(minInt64) &&
+ value_.real_ < double(maxInt64) &&
+ IsIntegral(value_.real_);
+ default:
+ break;
+ }
+# endif // JSON_HAS_INT64
+ return false;
+}
+
+bool
+Value::isUInt64() const
+{
+# if defined(JSON_HAS_INT64)
+ switch ( type_ )
+ {
+ case intValue:
+ return value_.int_ >= 0;
+ case uintValue:
+ return true;
+ case realValue:
+ // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a
+ // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we
+ // require the value to be strictly less than the limit.
+ return value_.real_ >= 0 &&
+ value_.real_ < maxUInt64AsDouble &&
+ IsIntegral(value_.real_);
+ default:
+ break;
+ }
+# endif // JSON_HAS_INT64
+ return false;
+}
+
+
+bool
+Value::isIntegral() const
+{
+#if defined(JSON_HAS_INT64)
+ return isInt64() || isUInt64();
+#else
+ return isInt() || isUInt();
+#endif
+}
+
+
+bool
+Value::isDouble() const
+{
+ return type_ == realValue || isIntegral();
+}
+
+
+bool
+Value::isNumeric() const
+{
+ return isIntegral() || isDouble();
+}
+
+
+bool
+Value::isString() const
+{
+ return type_ == stringValue;
+}
+
+
+bool
+Value::isArray() const
+{
+ return type_ == arrayValue;
+}
+
+
+bool
+Value::isObject() const
+{
+ return type_ == objectValue;
+}
+
+
+void
+Value::setComment( const char *comment,
+ CommentPlacement placement )
+{
+ if ( !comments_ )
+ comments_ = new CommentInfo[numberOfCommentPlacement];
+ comments_[placement].setComment( comment );
+}
+
+
+void
+Value::setComment( const std::string &comment,
+ CommentPlacement placement )
+{
+ setComment( comment.c_str(), placement );
+}
+
+
+bool
+Value::hasComment( CommentPlacement placement ) const
+{
+ return comments_ != 0 && comments_[placement].comment_ != 0;
+}
+
+std::string
+Value::getComment( CommentPlacement placement ) const
+{
+ if ( hasComment(placement) )
+ return comments_[placement].comment_;
+ return "";
+}
+
+
+std::string
+Value::toStyledString() const
+{
+ StyledWriter writer;
+ return writer.write( *this );
+}
+
+
+Value::const_iterator
+Value::begin() const
+{
+ switch ( type_ )
+ {
+#ifdef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ if ( value_.array_ )
+ {
+ ValueInternalArray::IteratorState it;
+ value_.array_->makeBeginIterator( it );
+ return const_iterator( it );
+ }
+ break;
+ case objectValue:
+ if ( value_.map_ )
+ {
+ ValueInternalMap::IteratorState it;
+ value_.map_->makeBeginIterator( it );
+ return const_iterator( it );
+ }
+ break;
+#else
+ case arrayValue:
+ case objectValue:
+ if ( value_.map_ )
+ return const_iterator( value_.map_->begin() );
+ break;
+#endif
+ default:
+ break;
+ }
+ return const_iterator();
+}
+
+Value::const_iterator
+Value::end() const
+{
+ switch ( type_ )
+ {
+#ifdef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ if ( value_.array_ )
+ {
+ ValueInternalArray::IteratorState it;
+ value_.array_->makeEndIterator( it );
+ return const_iterator( it );
+ }
+ break;
+ case objectValue:
+ if ( value_.map_ )
+ {
+ ValueInternalMap::IteratorState it;
+ value_.map_->makeEndIterator( it );
+ return const_iterator( it );
+ }
+ break;
+#else
+ case arrayValue:
+ case objectValue:
+ if ( value_.map_ )
+ return const_iterator( value_.map_->end() );
+ break;
+#endif
+ default:
+ break;
+ }
+ return const_iterator();
+}
+
+
+Value::iterator
+Value::begin()
+{
+ switch ( type_ )
+ {
+#ifdef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ if ( value_.array_ )
+ {
+ ValueInternalArray::IteratorState it;
+ value_.array_->makeBeginIterator( it );
+ return iterator( it );
+ }
+ break;
+ case objectValue:
+ if ( value_.map_ )
+ {
+ ValueInternalMap::IteratorState it;
+ value_.map_->makeBeginIterator( it );
+ return iterator( it );
+ }
+ break;
+#else
+ case arrayValue:
+ case objectValue:
+ if ( value_.map_ )
+ return iterator( value_.map_->begin() );
+ break;
+#endif
+ default:
+ break;
+ }
+ return iterator();
+}
+
+Value::iterator
+Value::end()
+{
+ switch ( type_ )
+ {
+#ifdef JSON_VALUE_USE_INTERNAL_MAP
+ case arrayValue:
+ if ( value_.array_ )
+ {
+ ValueInternalArray::IteratorState it;
+ value_.array_->makeEndIterator( it );
+ return iterator( it );
+ }
+ break;
+ case objectValue:
+ if ( value_.map_ )
+ {
+ ValueInternalMap::IteratorState it;
+ value_.map_->makeEndIterator( it );
+ return iterator( it );
+ }
+ break;
+#else
+ case arrayValue:
+ case objectValue:
+ if ( value_.map_ )
+ return iterator( value_.map_->end() );
+ break;
+#endif
+ default:
+ break;
+ }
+ return iterator();
+}
+
+
+// class PathArgument
+// //////////////////////////////////////////////////////////////////
+
+PathArgument::PathArgument()
+ : key_()
+ , index_()
+ , kind_( kindNone )
+{
+}
+
+
+PathArgument::PathArgument( ArrayIndex index )
+ : key_()
+ , index_( index )
+ , kind_( kindIndex )
+{
+}
+
+
+PathArgument::PathArgument( const char *key )
+ : key_( key )
+ , index_()
+ , kind_( kindKey )
+{
+}
+
+
+PathArgument::PathArgument( const std::string &key )
+ : key_( key.c_str() )
+ , index_()
+ , kind_( kindKey )
+{
+}
+
+// class Path
+// //////////////////////////////////////////////////////////////////
+
+Path::Path( const std::string &path,
+ const PathArgument &a1,
+ const PathArgument &a2,
+ const PathArgument &a3,
+ const PathArgument &a4,
+ const PathArgument &a5 )
+{
+ InArgs in;
+ in.push_back( &a1 );
+ in.push_back( &a2 );
+ in.push_back( &a3 );
+ in.push_back( &a4 );
+ in.push_back( &a5 );
+ makePath( path, in );
+}
+
+
+void
+Path::makePath( const std::string &path,
+ const InArgs &in )
+{
+ const char *current = path.c_str();
+ const char *end = current + path.length();
+ InArgs::const_iterator itInArg = in.begin();
+ while ( current != end )
+ {
+ if ( *current == '[' )
+ {
+ ++current;
+ if ( *current == '%' )
+ addPathInArg( path, in, itInArg, PathArgument::kindIndex );
+ else
+ {
+ ArrayIndex index = 0;
+ for ( ; current != end && *current >= '0' && *current <= '9'; ++current )
+ index = index * 10 + ArrayIndex(*current - '0');
+ args_.push_back( index );
+ }
+ if ( current == end || *current++ != ']' )
+ invalidPath( path, int(current - path.c_str()) );
+ }
+ else if ( *current == '%' )
+ {
+ addPathInArg( path, in, itInArg, PathArgument::kindKey );
+ ++current;
+ }
+ else if ( *current == '.' )
+ {
+ ++current;
+ }
+ else
+ {
+ const char *beginName = current;
+ while ( current != end && !strchr( "[.", *current ) )
+ ++current;
+ args_.push_back( std::string( beginName, current ) );
+ }
+ }
+}
+
+
+void
+Path::addPathInArg( const std::string &path,
+ const InArgs &in,
+ InArgs::const_iterator &itInArg,
+ PathArgument::Kind kind )
+{
+ if ( itInArg == in.end() )
+ {
+ // Error: missing argument %d
+ }
+ else if ( (*itInArg)->kind_ != kind )
+ {
+ // Error: bad argument type
+ }
+ else
+ {
+ args_.push_back( **itInArg );
+ }
+}
+
+
+void
+Path::invalidPath( const std::string &path,
+ int location )
+{
+ // Error: invalid path.
+}
+
+
+const Value &
+Path::resolve( const Value &root ) const
+{
+ const Value *node = &root;
+ for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
+ {
+ const PathArgument &arg = *it;
+ if ( arg.kind_ == PathArgument::kindIndex )
+ {
+ if ( !node->isArray() || !node->isValidIndex( arg.index_ ) )
+ {
+ // Error: unable to resolve path (array value expected at position...
+ }
+ node = &((*node)[arg.index_]);
+ }
+ else if ( arg.kind_ == PathArgument::kindKey )
+ {
+ if ( !node->isObject() )
+ {
+ // Error: unable to resolve path (object value expected at position...)
+ }
+ node = &((*node)[arg.key_]);
+ if ( node == &Value::null )
+ {
+ // Error: unable to resolve path (object has no member named '' at position...)
+ }
+ }
+ }
+ return *node;
+}
+
+
+Value
+Path::resolve( const Value &root,
+ const Value &defaultValue ) const
+{
+ const Value *node = &root;
+ for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
+ {
+ const PathArgument &arg = *it;
+ if ( arg.kind_ == PathArgument::kindIndex )
+ {
+ if ( !node->isArray() || !node->isValidIndex( arg.index_ ) )
+ return defaultValue;
+ node = &((*node)[arg.index_]);
+ }
+ else if ( arg.kind_ == PathArgument::kindKey )
+ {
+ if ( !node->isObject() )
+ return defaultValue;
+ node = &((*node)[arg.key_]);
+ if ( node == &Value::null )
+ return defaultValue;
+ }
+ }
+ return *node;
+}
+
+
+Value &
+Path::make( Value &root ) const
+{
+ Value *node = &root;
+ for ( Args::const_iterator it = args_.begin(); it != args_.end(); ++it )
+ {
+ const PathArgument &arg = *it;
+ if ( arg.kind_ == PathArgument::kindIndex )
+ {
+ if ( !node->isArray() )
+ {
+ // Error: node is not an array at position ...
+ }
+ node = &((*node)[arg.index_]);
+ }
+ else if ( arg.kind_ == PathArgument::kindKey )
+ {
+ if ( !node->isObject() )
+ {
+ // Error: node is not an object at position...
+ }
+ node = &((*node)[arg.key_]);
+ }
+ }
+ return *node;
+}
+
+
+} // namespace Json