pugi::xpath_variable Class Reference

#include <pugixml.hpp>

Public Member Functions
const char_t *	name () const
xpath_value_type	type () const
bool	get_boolean () const
double	get_number () const
const char_t *	get_string () const
const xpath_node_set &	get_node_set () const
bool	set (bool value)
bool	set (double value)
bool	set (const char_t *value)
bool	set (const xpath_node_set &value)

Protected Member Functions
	xpath_variable (xpath_value_type type)
	xpath_variable (const xpath_variable &)
xpath_variable &	operator= (const xpath_variable &)

Protected Attributes
xpath_value_type	_type
xpath_variable *	_next

Friends
class	xpath_variable_set

Detailed Description

Definition at line 1138 of file pugixml.hpp.

Constructor & Destructor Documentation

xpath_variable() [1/2]

PUGI__FN xpath_variable::xpath_variable ( xpath_value_type type )

protected

Definition at line 12533 of file pugixml.cc.

                                                                 : _type(type_), _next(0)
    {
    }

Referenced by operator=(), and xpath_variable().

xpath_variable() [2/2]

pugi::xpath_variable::xpath_variable ( const xpath_variable & )

protected

Member Function Documentation

get_boolean()

PUGI__FN bool xpath_variable::get_boolean

(

)

const

Definition at line 12564 of file pugixml.cc.

    {
        return (_type == xpath_type_boolean) ? static_cast<const impl::xpath_variable_boolean*>(this)->value : false;
    }

Referenced by operator=().

get_node_set()

PUGI__FN const xpath_node_set & xpath_variable::get_node_set

(

)

const

Definition at line 12580 of file pugixml.cc.

    {
        return (_type == xpath_type_node_set) ? static_cast<const impl::xpath_variable_node_set*>(this)->value : impl::dummy_node_set;
    }

Referenced by operator=().

get_number()

PUGI__FN double xpath_variable::get_number

(

)

const

Definition at line 12569 of file pugixml.cc.

    {
        return (_type == xpath_type_number) ? static_cast<const impl::xpath_variable_number*>(this)->value : impl::gen_nan();
    }

Referenced by operator=().

get_string()

PUGI__FN const char_t * xpath_variable::get_string

(

)

const

Definition at line 12574 of file pugixml.cc.

    {
        const char_t* value = (_type == xpath_type_string) ? static_cast<const impl::xpath_variable_string*>(this)->value : 0;
        return value ? value : PUGIXML_TEXT("");
    }

Referenced by operator=().

name()

PUGI__FN const char_t * xpath_variable::name

(

)

const

Definition at line 12537 of file pugixml.cc.

    {
        switch (_type)
        {
        case xpath_type_node_set:
            return static_cast<const impl::xpath_variable_node_set*>(this)->name;
 
        case xpath_type_number:
            return static_cast<const impl::xpath_variable_number*>(this)->name;
 
        case xpath_type_string:
            return static_cast<const impl::xpath_variable_string*>(this)->name;
 
        case xpath_type_boolean:
            return static_cast<const impl::xpath_variable_boolean*>(this)->name;
 
        default:
            assert(false && "Invalid variable type"); // unreachable
            return 0;
        }
    }

Referenced by name(), and operator=().

operator=()

xpath_variable & pugi::xpath_variable::operator= ( const xpath_variable & )

protected

set() [1/4]

PUGI__FN bool xpath_variable::set

(

bool

value

)

Definition at line 12585 of file pugixml.cc.

    {
        if (_type != xpath_type_boolean) return false;
 
        static_cast<impl::xpath_variable_boolean*>(this)->value = value;
        return true;
    }

Referenced by operator=(), pugi::xpath_variable_set::set(), pugi::xpath_variable_set::set(), pugi::xpath_variable_set::set(), and pugi::xpath_variable_set::set().

set() [2/4]

PUGI__FN bool xpath_variable::set

(

const char_t *

value

)

Definition at line 12601 of file pugixml.cc.

    {
        if (_type != xpath_type_string) return false;
 
        impl::xpath_variable_string* var = static_cast<impl::xpath_variable_string*>(this);
 
        // duplicate string
        size_t size = (impl::strlength(value) + 1) * sizeof(char_t);
 
        char_t* copy = static_cast<char_t*>(impl::xml_memory::allocate(size));
        if (!copy) return false;
 
        memcpy(copy, value, size);
 
        // replace old string
        if (var->value) impl::xml_memory::deallocate(var->value);
        var->value = copy;
 
        return true;
    }

set() [3/4]

PUGI__FN bool xpath_variable::set

(

const xpath_node_set &

value

)

Definition at line 12622 of file pugixml.cc.

    {
        if (_type != xpath_type_node_set) return false;
 
        static_cast<impl::xpath_variable_node_set*>(this)->value = value;
        return true;
    }

set() [4/4]

PUGI__FN bool xpath_variable::set

(

double

value

)

Definition at line 12593 of file pugixml.cc.

    {
        if (_type != xpath_type_number) return false;
 
        static_cast<impl::xpath_variable_number*>(this)->value = value;
        return true;
    }

type()

PUGI__FN xpath_value_type xpath_variable::type

(

)

const

Definition at line 12559 of file pugixml.cc.

    {
        return _type;
    }

Referenced by operator=().

Friends And Related Symbol Documentation

xpath_variable_set

friend class xpath_variable_set

friend

Definition at line 1140 of file pugixml.hpp.

Referenced by xpath_variable_set.

Member Data Documentation

_next

xpath_variable* pugi::xpath_variable::_next

protected

Definition at line 1144 of file pugixml.hpp.

Referenced by pugi::xpath_variable_set::add(), and xpath_variable().

_type

xpath_value_type pugi::xpath_variable::_type

protected

Definition at line 1143 of file pugixml.hpp.

Referenced by get_boolean(), get_node_set(), get_number(), get_string(), name(), set(), set(), set(), set(), type(), and xpath_variable().

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The documentation for this class was generated from the following files:

• pugixml.hpp
• pugixml.cc