rpt_value_struct Class Reference

#include <struct.h>

Inheritance diagram for rpt_value_struct:

Public Member Functions
virtual	~rpt_value_struct ()
	rpt_value_struct ()
void	assign (const nstring &name, const rpt_value::pointer &value)
rpt_value::pointer	lookup (const char *name) const
rpt_value::pointer	lookup (const nstring &name) const
rpt_value::pointer	lookup (string_ty *name) const
Static Public Member Functions
static rpt_value::pointer	create ()
Protected Member Functions
const char *	name () const
bool	is_a_struct () const
rpt_value::pointer	undefer () const
rpt_value::pointer	lookup (const rpt_value::pointer &rhs, bool lvalue) const
rpt_value::pointer	keys () const
rpt_value::pointer	count () const
Private Member Functions
	rpt_value_struct (const rpt_value_struct &)
rpt_value_struct &	operator= (const rpt_value_struct &)
Private Attributes
symtab< rpt_value::pointer >	members

---

Detailed Description

The rpt_value_struct class is used to represent a vales consisting of zero or more name-value pairs.

Definition at line 30 of file struct.h.

---

Constructor & Destructor Documentation

virtual rpt_value_struct::~rpt_value_struct

(

)

[virtual]

The destructor.

rpt_value_struct::rpt_value_struct

(

)

The constructor. Use the "create" class method instead.

Note:

This method is only public so that rpt_expr_struct::evaluate can use it. No other objects shall use this constructor.

rpt_value_struct::rpt_value_struct

(

const rpt_value_struct &

)

[private]

The copy constructor. Do not use.

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Member Function Documentation

void rpt_value_struct::assign	(	const nstring &	name,
		const rpt_value::pointer &	value
	)

The assign method is used to set a struct member by name.

Parameters:

name	The name of the struct member.
value	The value of the struct member.

rpt_value::pointer rpt_value_struct::count

(

)

const [protected, virtual]

The count method is used to count the number of elements of an associative array.

Reimplemented from rpt_value.

static rpt_value::pointer rpt_value_struct::create

(

)

[static]

The create class method is used to create new dynamically allocated instances of this class.

bool rpt_value_struct::is_a_struct

(

)

const [protected, virtual]

The is_a_struct method may be used to determine whether or not the value is a struct (or associative array). Superficially, this should be simple, but it is complicated by things like deferred project and change states.

Returns:

true of struct-like values, false for everything else

Reimplemented from rpt_value.

rpt_value::pointer rpt_value_struct::keys

(

)

const [protected, virtual]

The keys method is used to obtain a list of keys of an associative array.

Reimplemented from rpt_value.

rpt_value::pointer rpt_value_struct::lookup

(

const char *

name

)

const

The lookup method is used to obtain the vale of the named struct member.

Parameters:

name	The name of the member to look for.

Returns:

the value of the member, or nul if not present.

rpt_value::pointer rpt_value_struct::lookup

(

const nstring &

name

)

const

The lookup method is used to obtain the vale of the named struct member.

Parameters:

name	The name of the member to look for.

Returns:

the value of the member, or nul if not present.

rpt_value::pointer rpt_value_struct::lookup

(

string_ty *

name

)

const

The lookup method is used to obtain the vale of the named struct member.

Parameters:

name	The name of the member to look for.

Returns:

the value of the member, or nul if not present.

rpt_value::pointer rpt_value_struct::lookup	(	const rpt_value::pointer &	rhs,
		bool	lvalue
	)		const [protected, virtual]

The lookup method is used to index an associate array, or locate a member within a struct.

Parameters:

rhs	The member name, or array index
lvalue	The result is to be used of an l-value

Reimplemented from rpt_value.

const char* rpt_value_struct::name

(

)

const [protected, virtual]

The name method is used to obtain the name of the type of the value.

Implements rpt_value.

rpt_value_struct& rpt_value_struct::operator=

(

const rpt_value_struct &

)

[private]

The assignment operator. Do not use.

rpt_value::pointer rpt_value_struct::undefer

(

)

const [protected]

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Field Documentation

symtab<rpt_value::pointer> rpt_value_struct::members [mutable, private]

The members instance variable is used ro remember the value of each member of the struct.

It is mutable in that there are times when lookup() will create an entry with a nul value, as if it contains an infinite set of nul values.

Definition at line 125 of file struct.h.

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

• libaegis/aer/value/struct.h