Value::UInt64
Value::asUInt64() const
{
switch ( type_ )
{
case nullValue:
return 0;
case intValue:
JSON_ASSERT_MESSAGE( value_.int_ >= 0, "Negative integer can not be converted to UInt64" );
return value_.int_;
case uintValue:
return value_.uint_;
case realValue:
JSON_ASSERT_MESSAGE( value_.real_ >= 0 && value_.real_ <= maxUInt64, "Real out of UInt64 range" );
return UInt( value_.real_ );
case booleanValue:
return value_.bool_ ? 1 : 0;
case stringValue:
case arrayValue:
case objectValue:
JSON_FAIL_MESSAGE( "Type is not convertible to UInt64" );
default:
JSON_ASSERT_UNREACHABLE;
}
return 0; // unreachable;
}
float
Value::asFloat() const
{
switch ( type_ )
{
case nullValue:
return 0.0f;
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 static_cast<float>( Int(value_.uint_/2) ) * 2 + Int(value_.uint_ & 1);
#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
case realValue:
return static_cast<float>( value_.real_ );
case booleanValue:
return value_.bool_ ? 1.0f : 0.0f;
case stringValue:
case arrayValue:
case objectValue:
JSON_FAIL_MESSAGE( "Type is not convertible to float" );
default:
JSON_ASSERT_UNREACHABLE;
}
return 0.0f; // unreachable;
}
Value::Int
Value::asInt() const
{
switch ( type_ )
{
case nullValue:
return 0;
case intValue:
JSON_ASSERT_MESSAGE( value_.int_ >= minInt && value_.int_ <= maxInt, "unsigned integer out of signed int range" );
return Int(value_.int_);
case uintValue:
#ifdef MODIFY_FUNCTION_SIGN
// do nothing
#else
JSON_ASSERT_MESSAGE(value_.uint_ <= UInt(maxInt), "unsigned integer out of signed int range");
#endif
return Int(value_.uint_);
case realValue:
JSON_ASSERT_MESSAGE( value_.real_ >= minInt && value_.real_ <= maxInt, "Real out of signed integer range" );
return Int( value_.real_ );
case booleanValue:
return value_.bool_ ? 1 : 0;
case stringValue:
case arrayValue:
case objectValue:
JSON_FAIL_MESSAGE( "Type is not convertible to int" );
default:
JSON_ASSERT_UNREACHABLE;
}
return 0; // unreachable;
}
Value::Int64
Value::asInt64() const
{
switch ( type_ )
{
case nullValue:
return 0;
case intValue:
return value_.int_;
case uintValue:
JSON_ASSERT_MESSAGE( value_.uint_ <= UInt64(maxInt64), "unsigned integer out of Int64 range" );
return value_.uint_;
case realValue:
JSON_ASSERT_MESSAGE( value_.real_ >= minInt64 && value_.real_ <= maxInt64, "Real out of Int64 range" );
return Int( value_.real_ );
case booleanValue:
return value_.bool_ ? 1 : 0;
case stringValue:
case arrayValue:
case objectValue:
JSON_FAIL_MESSAGE( "Type is not convertible to Int64" );
default:
JSON_ASSERT_UNREACHABLE;
}
return 0; // unreachable;
}
String Value::asString() const {
switch (type()) {
case nullValue:
return "";
case stringValue: {
if (value_.string_ == nullptr)
return "";
unsigned this_len;
char const* this_str;
decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len,
&this_str);
return 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");
}
}
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:
// This is kind of strange. Not recommended.
return (value_.real_ != 0.0) ? true : false;
default:
break;
}
JSON_FAIL_MESSAGE("Value is not convertible to bool.");
}
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.");
}
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.");
}
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.");
}
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.");
}
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" );
}
}
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)
// This can fail (silently?) if the value is bigger than MAX_FLOAT.
return static_cast<float>(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.");
}
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:
case uintValue:
case realValue:
case arrayValue:
case objectValue:
JSON_FAIL_MESSAGE( "Type is not convertible to string" );
default:
JSON_ASSERT_UNREACHABLE;
}
return ""; // unreachable
}
