CMake/Utilities/cmjsoncpp/src/lib_json/json_valueiterator.inl

242 lines
7.2 KiB
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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
// included by json_value.cpp
namespace Json {
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueIteratorBase
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueIteratorBase::ValueIteratorBase()
#ifndef JSON_VALUE_USE_INTERNAL_MAP
: current_(), isNull_(true) {
}
#else
: isArray_(true), isNull_(true) {
iterator_.array_ = ValueInternalArray::IteratorState();
}
#endif
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueIteratorBase::ValueIteratorBase(
const Value::ObjectValues::iterator& current)
: current_(current), isNull_(false) {}
#else
ValueIteratorBase::ValueIteratorBase(
const ValueInternalArray::IteratorState& state)
: isArray_(true) {
iterator_.array_ = state;
}
ValueIteratorBase::ValueIteratorBase(
const ValueInternalMap::IteratorState& state)
: isArray_(false) {
iterator_.map_ = state;
}
#endif
Value& ValueIteratorBase::deref() const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
return current_->second;
#else
if (isArray_)
return ValueInternalArray::dereference(iterator_.array_);
return ValueInternalMap::value(iterator_.map_);
#endif
}
void ValueIteratorBase::increment() {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
++current_;
#else
if (isArray_)
ValueInternalArray::increment(iterator_.array_);
ValueInternalMap::increment(iterator_.map_);
#endif
}
void ValueIteratorBase::decrement() {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
--current_;
#else
if (isArray_)
ValueInternalArray::decrement(iterator_.array_);
ValueInternalMap::decrement(iterator_.map_);
#endif
}
ValueIteratorBase::difference_type
ValueIteratorBase::computeDistance(const SelfType& other) const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
#ifdef JSON_USE_CPPTL_SMALLMAP
return current_ - other.current_;
#else
// Iterator for null value are initialized using the default
// constructor, which initialize current_ to the default
// std::map::iterator. As begin() and end() are two instance
// of the default std::map::iterator, they can not be compared.
// To allow this, we handle this comparison specifically.
if (isNull_ && other.isNull_) {
return 0;
}
// Usage of std::distance is not portable (does not compile with Sun Studio 12
// RogueWave STL,
// which is the one used by default).
// Using a portable hand-made version for non random iterator instead:
// return difference_type( std::distance( current_, other.current_ ) );
difference_type myDistance = 0;
for (Value::ObjectValues::iterator it = current_; it != other.current_;
++it) {
++myDistance;
}
return myDistance;
#endif
#else
if (isArray_)
return ValueInternalArray::distance(iterator_.array_,
other.iterator_.array_);
return ValueInternalMap::distance(iterator_.map_, other.iterator_.map_);
#endif
}
bool ValueIteratorBase::isEqual(const SelfType& other) const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
if (isNull_) {
return other.isNull_;
}
return current_ == other.current_;
#else
if (isArray_)
return ValueInternalArray::equals(iterator_.array_, other.iterator_.array_);
return ValueInternalMap::equals(iterator_.map_, other.iterator_.map_);
#endif
}
void ValueIteratorBase::copy(const SelfType& other) {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
current_ = other.current_;
isNull_ = other.isNull_;
#else
if (isArray_)
iterator_.array_ = other.iterator_.array_;
iterator_.map_ = other.iterator_.map_;
#endif
}
Value ValueIteratorBase::key() const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const Value::CZString czstring = (*current_).first;
if (czstring.c_str()) {
if (czstring.isStaticString())
return Value(StaticString(czstring.c_str()));
return Value(czstring.c_str());
}
return Value(czstring.index());
#else
if (isArray_)
return Value(ValueInternalArray::indexOf(iterator_.array_));
bool isStatic;
const char* memberName = ValueInternalMap::key(iterator_.map_, isStatic);
if (isStatic)
return Value(StaticString(memberName));
return Value(memberName);
#endif
}
UInt ValueIteratorBase::index() const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const Value::CZString czstring = (*current_).first;
if (!czstring.c_str())
return czstring.index();
return Value::UInt(-1);
#else
if (isArray_)
return Value::UInt(ValueInternalArray::indexOf(iterator_.array_));
return Value::UInt(-1);
#endif
}
const char* ValueIteratorBase::memberName() const {
#ifndef JSON_VALUE_USE_INTERNAL_MAP
const char* name = (*current_).first.c_str();
return name ? name : "";
#else
if (!isArray_)
return ValueInternalMap::key(iterator_.map_);
return "";
#endif
}
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueConstIterator
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueConstIterator::ValueConstIterator() {}
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueConstIterator::ValueConstIterator(
const Value::ObjectValues::iterator& current)
: ValueIteratorBase(current) {}
#else
ValueConstIterator::ValueConstIterator(
const ValueInternalArray::IteratorState& state)
: ValueIteratorBase(state) {}
ValueConstIterator::ValueConstIterator(
const ValueInternalMap::IteratorState& state)
: ValueIteratorBase(state) {}
#endif
ValueConstIterator& ValueConstIterator::
operator=(const ValueIteratorBase& other) {
copy(other);
return *this;
}
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// class ValueIterator
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
// //////////////////////////////////////////////////////////////////
ValueIterator::ValueIterator() {}
#ifndef JSON_VALUE_USE_INTERNAL_MAP
ValueIterator::ValueIterator(const Value::ObjectValues::iterator& current)
: ValueIteratorBase(current) {}
#else
ValueIterator::ValueIterator(const ValueInternalArray::IteratorState& state)
: ValueIteratorBase(state) {}
ValueIterator::ValueIterator(const ValueInternalMap::IteratorState& state)
: ValueIteratorBase(state) {}
#endif
ValueIterator::ValueIterator(const ValueConstIterator& other)
: ValueIteratorBase(other) {}
ValueIterator::ValueIterator(const ValueIterator& other)
: ValueIteratorBase(other) {}
ValueIterator& ValueIterator::operator=(const SelfType& other) {
copy(other);
return *this;
}
} // namespace Json