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cast to array and cast to object implemented, refactored shared-ptr and clone() methods to utilize std::make_shared (see issue #7)

This commit is contained in:
Emiel Bruijntjes 2014-04-14 17:14:36 +02:00
parent bcc6eaff82
commit b8d4581569
9 changed files with 144 additions and 110 deletions
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18
include/array.h
View File

@ -62,9 +62,9 @@ public:
* Create a new instance of this object
* @return Field*
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
return new Array(*this);
return std::make_shared<Array>(*this);
}
/**
@ -84,7 +84,7 @@ public:
Array set(uint8_t index, const Field &value)
{
// construct a shared pointer
auto ptr = std::shared_ptr<Field>(value.clone());
auto ptr = value.clone();
// should we overwrite an existing record?
if (index >= _fields.size())
@ -181,7 +181,7 @@ public:
bool first = true;
// loop through all members
for (auto iter : _fields)
for (auto &iter : _fields)
{
// split with comma
if (!first) stream << ",";
@ -196,6 +196,16 @@ public:
// postfix
stream << ")";
}
/**
* Cast to array
* @return Array
*/
virtual operator const Array& () const override
{
// this already is an array, so no cast is necessary
return *this;
}
};
/**

4
include/booleanset.h
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@ -78,9 +78,9 @@ public:
* Extending from field forces us to implement a clone function.
* @return shared_ptr
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
return new BooleanSet(*this);
return std::make_shared<BooleanSet>(*this);
}
/**

4
include/decimalfield.h
View File

@ -83,9 +83,9 @@ public:
* Create a new identical instance of this object
* @return Field*
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
return new DecimalField(_places, _number);
return std::make_shared<DecimalField>(_places, _number);
}
/**

21
include/field.h
View File

@ -37,7 +37,7 @@ public:
* Create a new instance on the heap of this object, identical to the object passed
* @return Field*
*/
virtual Field *clone() const = 0;
virtual std::shared_ptr<Field> clone() const = 0;
/**
* Get the size this field will take when
@ -64,6 +64,25 @@ public:
* @param std::ostream
*/
virtual void output(std::ostream &stream) const = 0;
/**
* Casting operators
* @return mixed
*/
virtual operator const std::string& () const;
virtual operator const char * () const { return nullptr; }
virtual operator uint8_t () const { return 0; }
virtual operator uint16_t () const { return 0; }
virtual operator uint32_t () const { return 0; }
virtual operator uint64_t () const { return 0; }
virtual operator int8_t () const { return 0; }
virtual operator int16_t () const { return 0; }
virtual operator int32_t () const { return 0; }
virtual operator int64_t () const { return 0; }
virtual operator float () const { return 0; }
virtual operator double () const { return 0; }
virtual operator const Array& () const;
virtual operator const Table& () const;
};
/**

117
include/fieldproxy.h
View File

@ -197,6 +197,30 @@ public:
return operator=(std::string(value));
}
/**
* Assign an array value
* @param value
* @return FieldProxy
*/
FieldProxy &operator=(const Array &value)
{
// assign value and allow chaining
_source->set(_index, value);
return *this;
}
/**
* Assign a table value
* @param value
* @return FieldProxy
*/
FieldProxy &operator=(const Table &value)
{
// assign value and allow chaining
_source->set(_index, value);
return *this;
}
/**
* Get the underlying field
* @return Field
@ -210,97 +234,8 @@ public:
* Get a boolean
* @return bool
*/
operator bool ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return int8_t
*/
operator int8_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return uint8_t
*/
operator uint8_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return int16_t
*/
operator int16_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return uint16_t
*/
operator uint16_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return int32_t
*/
operator int32_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return uint32_t
*/
operator uint32_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return int64_t
*/
operator int64_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get numeric value
* @return uint64_t
*/
operator uint64_t ()
{
// retrieve the value
return _source->get(_index);
}
/**
* Get string value
* @return string
*/
operator std::string ()
template <typename TARGET>
operator TARGET () const
{
// retrieve the value
return _source->get(_index);

6
include/numericfield.h
View File

@ -78,10 +78,10 @@ public:
* Create a new instance of this object
* @return Field*
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
// create a new copy of ourselves and return it
return new NumericField(_value);
return std::make_shared<NumericField>(_value);
}
/**
@ -100,7 +100,7 @@ public:
* Get the value
* @return mixed
*/
operator T () const
virtual operator T () const override
{
return _value;
}

6
include/stringfield.h
View File

@ -58,10 +58,10 @@ public:
* Create a new instance of this object
* @return Field*
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
// create a new copy of ourselves and return it
return new StringField(_data);
return std::make_shared<StringField>(_data);
}
/**
@ -96,7 +96,7 @@ public:
* Get the value
* @return string
*/
operator const std::string& () const
virtual operator const std::string& () const override
{
return _data;
}

39
include/table.h
View File

@ -76,9 +76,9 @@ public:
* Create a new instance on the heap of this object, identical to the object passed
* @return Field*
*/
virtual Field *clone() const override
virtual std::shared_ptr<Field> clone() const override
{
return new Table(*this);
return std::make_shared<Table>(*this);
}
/**
@ -96,7 +96,7 @@ public:
Table set(const std::string& name, const Field &value)
{
// copy to a new pointer and store it
_fields[name] = std::shared_ptr<Field>(value.clone());
_fields[name] = value.clone();
// allow chaining
return *this;
@ -122,6 +122,16 @@ public:
return AssociativeFieldProxy(this, name);
}
/**
* Get a field
*
* @param name field name
*/
AssociativeFieldProxy operator[](const char *name)
{
return AssociativeFieldProxy(this, name);
}
/**
* Get a const field
*
@ -132,6 +142,16 @@ public:
return get(name);
}
/**
* Get a const field
*
* @param name field name
*/
const Field &operator[](const char *name) const
{
return get(name);
}
/**
* Write encoded payload to the given buffer.
* @param buffer
@ -160,7 +180,7 @@ public:
bool first = true;
// loop through all members
for (auto iter : _fields)
for (auto &iter : _fields)
{
// split with comma
if (!first) stream << ",";
@ -175,6 +195,17 @@ public:
// postfix
stream << ")";
}
/**
* Cast to table
* @return Table
*/
virtual operator const Table& () const override
{
// this already is an array, so no cast is necessary
return *this;
}
};
/**

39
src/field.cpp
View File

@ -45,6 +45,45 @@ Field *Field::decode(ReceivedFrame &frame)
}
}
/**
* Cast to string
* @return std::string
*/
Field::operator const std::string& () const
{
// static empty string
static std::string empty;
// return it
return empty;
}
/**
* Cast to array
* @return Array
*/
Field::operator const Array& () const
{
// static empty array
static Array empty;
// return it
return empty;
}
/**
* Cast to object
* @return Array
*/
Field::operator const Table& () const
{
// static empty table
static Table empty;
// return it
return empty;
}
/**
* End of namespace
*/