paludis::ConditionalDepSpec Class Reference
[Dependency specifications]

#include <dep_spec.hh>

Inheritance diagram for paludis::ConditionalDepSpec:

List of all members.

Basic operations
	ConditionalDepSpec (const std::tr1::shared_ptr< const ConditionalDepSpecData > &)
	ConditionalDepSpec (const ConditionalDepSpec &)
	~ConditionalDepSpec ()
Public Member Functions
virtual const ConditionalDepSpec *	as_conditional_dep_spec () const
bool	condition_met () const PALUDIS_ATTRIBUTE((warn_unused_result))
bool	condition_meetable () const PALUDIS_ATTRIBUTE((warn_unused_result))
const std::tr1::shared_ptr < const ConditionalDepSpecData >	data () const PALUDIS_ATTRIBUTE((warn_unused_result))
Protected Member Functions
virtual void	need_keys_added () const
virtual void	clear_metadata_keys () const
Friends
std::ostream &	operator<< (std::ostream &, const ConditionalDepSpec &)

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Detailed Description

Represents a dependency spec whose children should only be considered upon a certain condition (for example, a use dependency block).

Since:

0.26

Examples:

example_dep_label.cc, example_dep_tree.cc, and example_formatter.cc.

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Member Function Documentation

virtual void paludis::ConditionalDepSpec::need_keys_added

(

)

const [protected, virtual]

This method will be called before any of the metadata key iteration methods does its work. It can be used by subclasses to implement as-needed loading of keys.

Implements paludis::MetadataKeyHolder.

virtual void paludis::ConditionalDepSpec::clear_metadata_keys

(

)

const [protected, virtual]

Clear all MetadataKey instances added using add_metadata_key.

Reimplemented from paludis::MetadataKeyHolder.

virtual const ConditionalDepSpec* paludis::ConditionalDepSpec::as_conditional_dep_spec

(

)

const [virtual]

Return us as a ConditionalDepSpec, or 0 if we are not a ConditionalDepSpec.

Reimplemented from paludis::DepSpec.

bool paludis::ConditionalDepSpec::condition_met

(

)

const

Is our condition met?

This takes into account inverses etc.

Examples:

example_dep_tree.cc.

bool paludis::ConditionalDepSpec::condition_meetable

(

)

const

Is our condition meetable?

This takes into account inverses, masks, forces etc.

const std::tr1::shared_ptr<const ConditionalDepSpecData> paludis::ConditionalDepSpec::data

(

)

const

Fetch our data.

This shouldn't generally be used by clients, but some repositories use it to gain access to additional data stored in the ConditionalDepSpecData.

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	,
		const ConditionalDepSpec &
	)			[friend]

A ConditionalDepSpec can be written to an ostream.

Since:

0.26

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

• /home/users/ciaranm/work/paludis/paludis/dep_spec.hh