void Value::dupPayload(const Value& other) {
type_ = other.type_;
allocated_ = false;
switch (type_) {
case nullValue:
case intValue:
case uintValue:
case realValue:
case booleanValue:
value_ = other.value_;
break;
case stringValue:
if (other.value_.string_ && other.allocated_) {
unsigned len;
char const* str;
decodePrefixedString(other.allocated_, other.value_.string_, &len, &str);
value_.string_ = duplicateAndPrefixStringValue(str, len);
allocated_ = true;
} else {
value_.string_ = other.value_.string_;
}
break;
case arrayValue:
case objectValue:
value_.map_ = new ObjectValues(*other.value_.map_);
break;
default:
JSON_ASSERT_UNREACHABLE;
}
}
bool Value::getString(char const** str, char const** cend) const {
if (type_ != stringValue) return false;
if (value_.string_ == 0) return false;
unsigned length;
decodePrefixedString(this->allocated_, this->value_.string_, &length, str);
*cend = *str + length;
return true;
}
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:
{
if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
if (other.value_.string_) return true;
else return false;
}
unsigned this_len;
unsigned other_len;
char const* this_str;
char const* other_str;
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
decodePrefixedString(other.allocated_, other.value_.string_, &other_len, &other_str);
unsigned min_len = (std::min)(this_len, other_len);
JSON_ASSERT(this_str && other_str);
int comp = memcmp(this_str, other_str, min_len);
if (comp < 0) return true;
if (comp > 0) return false;
return (this_len < other_len);
}
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_);
}
default:
JSON_ASSERT_UNREACHABLE;
}
return false; // unreachable
}
static inline void releasePrefixedStringValue(char* value) {
unsigned length = 0;
char const* valueDecoded;
decodePrefixedString(true, value, &length, &valueDecoded);
size_t const size = sizeof(unsigned) + length + 1U;
memset(value, 0, size);
free(value);
}
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: {
if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
return (value_.string_ == other.value_.string_);
}
unsigned this_len;
unsigned other_len;
char const* this_str;
char const* other_str;
decodePrefixedString(this->allocated_, this->value_.string_, &this_len,
&this_str);
decodePrefixedString(other.allocated_, other.value_.string_, &other_len,
&other_str);
if (this_len != other_len)
return false;
JSON_ASSERT(this_str && other_str);
int comp = memcmp(this_str, other_str, this_len);
return comp == 0;
}
case arrayValue:
case objectValue:
return value_.map_->size() == other.value_.map_->size() &&
(*value_.map_) == (*other.value_.map_);
default:
JSON_ASSERT_UNREACHABLE;
}
return false; // unreachable
}
unsigned Value::getCStringLength() const {
JSON_ASSERT_MESSAGE(type_ == stringValue,
"in Json::Value::asCString(): requires stringValue");
if (value_.string_ == 0) return 0;
unsigned this_len;
char const* this_str;
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
return this_len;
}
bool Value::getString(char const** begin, char const** end) const {
if (type() != stringValue)
return false;
if (value_.string_ == nullptr)
return false;
unsigned length;
decodePrefixedString(this->isAllocated(), this->value_.string_, &length,
begin);
*end = *begin + length;
return true;
}
const char* Value::asCString() const {
JSON_ASSERT_MESSAGE(type() == stringValue,
"in Json::Value::asCString(): requires stringValue");
if (value_.string_ == nullptr)
return nullptr;
unsigned this_len;
char const* this_str;
decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len,
&this_str);
return this_str;
}
bool Value::operator==(const Value& other) const {
if (type() != other.type())
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: {
if ((value_.string_ == nullptr) || (other.value_.string_ == nullptr)) {
return (value_.string_ == other.value_.string_);
}
unsigned this_len;
unsigned other_len;
char const* this_str;
char const* other_str;
decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len,
&this_str);
decodePrefixedString(other.isAllocated(), other.value_.string_, &other_len,
&other_str);
if (this_len != other_len)
return false;
JSON_ASSERT(this_str && other_str);
int comp = memcmp(this_str, other_str, this_len);
return comp == 0;
}
case arrayValue:
case objectValue:
return value_.map_->size() == other.value_.map_->size() &&
(*value_.map_) == (*other.value_.map_);
default:
JSON_ASSERT_UNREACHABLE;
}
return false; // unreachable
}
Value::Value(Value const& other)
: type_(other.type_), allocated_(false)
,
comments_(0), start_(other.start_), limit_(other.limit_)
{
switch (type_) {
case nullValue:
case intValue:
case uintValue:
case realValue:
case booleanValue:
value_ = other.value_;
break;
case stringValue:
if (other.value_.string_ && other.allocated_) {
unsigned len;
char const* str;
decodePrefixedString(other.allocated_, other.value_.string_,
&len, &str);
value_.string_ = duplicateAndPrefixStringValue(str, len);
allocated_ = true;
} else {
value_.string_ = other.value_.string_;
allocated_ = false;
}
break;
case arrayValue:
case objectValue:
value_.map_ = new ObjectValues(*other.value_.map_);
break;
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_, strlen(otherComment.comment_));
}
}
}
JSONCPP_STRING Value::asString() const {
switch (type_) {
case nullValue:
return "";
case stringValue:
{
if (value_.string_ == 0) return "";
unsigned this_len;
char const* this_str;
decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
return JSONCPP_STRING(this_str, this_len);
}
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");
}
}
CppTL::ConstString Value::asConstString() const {
unsigned len;
char const* str;
decodePrefixedString(isAllocated(), value_.string_, &len, &str);
return CppTL::ConstString(str, len);
}
