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/**
* ConstantImpl.h
*
* Implementation file for the constant class
*
* @author Emiel Bruijntjes <emiel.bruijntjes@copernica.com>
* @copyright 2015 Copernica BV
*/
/**
* Set up namespace
*/
namespace Php {
/**
* Class definition
*/
class ConstantImpl
{
public:
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, std::nullptr_t value = nullptr) : _name(name)
{
// initialize the zval
ZVAL_NULL(&_constant.value);
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, bool value) : _name(name)
{
// initialize the zval
ZVAL_BOOL(&_constant.value, value);
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, int32_t value) : _name(name)
{
// initialize the zval
ZVAL_LONG(&_constant.value, value);
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, int64_t value) : _name(name)
{
// initialize the zval
ZVAL_LONG(&_constant.value, value);
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, double value) : _name(name)
{
// initialize the zval
ZVAL_DOUBLE(&_constant.value, value);
}
/**
* Constructor
* @param name
* @param value
* @param len
*/
ConstantImpl(const char *name, const char *value, size_t len) : _name(name)
{
// initialize the zval
ZVAL_STRINGL(&_constant.value, value, len);
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, const char *value) : _name(name)
{
// initialize the zval
ZVAL_STRINGL(&_constant.value, value, ::strlen(value));
}
/**
* Constructor
* @param name
* @param value
*/
ConstantImpl(const char *name, const std::string &value) : _name(name)
{
// initialize the zval
ZVAL_STRINGL(&_constant.value, value.c_str(), value.size());
}
/**
* Destructor
*/
virtual ~ConstantImpl() {}
/**
* Add the constant to a class
* @param clss The class to add it to
*/
void addTo(ClassBase &clss) const
{
// check the zval type
switch (Z_TYPE(_constant.value)) {
case IS_NULL:
// set a null constant
clss.property(_name, nullptr, Php::Const);
break;
case IS_LONG:
// set a long constant (cast is necessary because php uses longs, which
// have a different size on different platforms)
clss.property(_name, (int64_t)Z_LVAL(_constant.value), Php::Const);
break;
case IS_DOUBLE:
// set a double constant
clss.property(_name, Z_DVAL(_constant.value), Php::Const);
break;
case IS_FALSE:
// set boolean false
clss.property(_name, false, Php::Const);
break;
case IS_TRUE:
// set boolean true
clss.property(_name, true, Php::Const);
case IS_STRING:
// set a string constant
clss.property(_name, std::string(Z_STRVAL(_constant.value), Z_STRLEN(_constant.value)), Php::Const);
break;
default:
// this should not happen, the constant can only be constructed as one
// of the above types, so it should be impossible to end up here. But
// for completeness, we are going to make a copy of the zval, and convert
// that to a string
zval copy = _constant.value;
// run the copy constructor to make sure zval is correctly copied
zval_copy_ctor(©);
// convert the copy to a string
convert_to_string(©);
// set as string constant
clss.property(_name, std::string(Z_STRVAL(copy), Z_STRLEN(copy)), Php::Const);
break;
}
}
/**
* Initialize the constant
* @param prefix Namespace prefix
* @param module_number The module number
* @param tsrmls Optional parameter when running in multi-threading context
*/
void initialize(const std::string &prefix, int module_number TSRMLS_DC)
{
// is there a namespace name involved?
if (!prefix.empty())
{
// size of the name
auto namelen = ::strlen(_name);
// allocate memory for the full name
_constant.name = zend_string_alloc(prefix.size() + 1 + namelen, 1);
// copy the entire namespace name, separator and constant name
::strncpy(ZSTR_VAL(_constant.name), prefix.c_str(), prefix.size());
::strncpy(ZSTR_VAL(_constant.name) + prefix.size(), "\\", 1);
::strncpy(ZSTR_VAL(_constant.name) + prefix.size() + 1, _name, namelen + 1);
}
else
{
// no namespace, we simply copy the name
_constant.name = zend_string_init(_name, ::strlen(_name), 1);
}
// set all the other constant properties
_constant.flags = CONST_CS | CONST_PERSISTENT;
_constant.module_number = module_number;
// register the zval
zend_register_constant(&_constant TSRMLS_CC);
}
private:
/**
* Name of the constant
* @var const char *
*/
const char *_name;
/**
* The zend_constant structure
* @var zend_constant
*/
zend_constant _constant;
};
/**
* End of namespace
*/
}
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