KDevelop::DeclarationId Class Reference

#include <declarationid.h>

Public Member Functions
	DeclarationId (const DeclarationId &rhs)
	DeclarationId (const IndexedDeclaration &decl, const IndexedInstantiationInformation &specialization=IndexedInstantiationInformation())
	DeclarationId (const IndexedQualifiedIdentifier &id=IndexedQualifiedIdentifier(), uint additionalId=0, const IndexedInstantiationInformation &specialization=IndexedInstantiationInformation())
	~DeclarationId ()
Declaration *	declaration (const TopDUContext *context, bool instantiateIfRequired=true) const
KDevVarLengthArray< Declaration * >	declarations (const TopDUContext *context) const
uint	hash () const
bool	isDirect () const
bool	isValid () const
bool	operator!= (const DeclarationId &rhs) const
DeclarationId &	operator= (const DeclarationId &rhs)
bool	operator== (const DeclarationId &rhs) const
QualifiedIdentifier	qualifiedIdentifier () const
void	setSpecialization (const IndexedInstantiationInformation &spec)
IndexedInstantiationInformation	specialization () const

Detailed Description

Allows clearly identifying a Declaration.

DeclarationId is needed to uniquely address Declarations that are in another top-context, because there may be multiple parsed versions of a file.

There are two forms of DeclarationId, one indirect and one direct. The direct form holds a reference to the Declaration instance, whereas the indirect form stores the qualified identifier and an additional index to disambiguate instances of multiple declarations with the same identifier.

Both forms also have a specialization index. It can be used in a language-specific way to pick other versions of the declaration. When the declaration is found, Declaration::specialize() is called on the found declaration with this value, and the returned value is the actually found declaration.

Note

This only works when the Declaration is in the symbol table.

Definition at line 50 of file declarationid.h.

Constructor & Destructor Documentation

DeclarationId() [1/3]

KDevelop::DeclarationId::DeclarationId ( const IndexedQualifiedIdentifier &  id = IndexedQualifiedIdentifier(), uint  additionalId = 0, const IndexedInstantiationInformation &  specialization = IndexedInstantiationInformation()  )

explicit

Constructor for indirect access to a declaration.

The resulting DeclarationId will not have a direct reference to the Declaration, but will look it up as needed.

Parameters

id	Identifier for this declaration id.
additionalId	Additional index to disambiguate
specialization	Specialization index (see class documentation).

Definition at line 31 of file declarationid.cpp.

DeclarationId() [2/3]

KDevelop::DeclarationId::DeclarationId ( const IndexedDeclaration &  decl, const IndexedInstantiationInformation &  specialization = IndexedInstantiationInformation()  )

explicit

Constructor for direct access to a declaration.

The resulting DeclarationId will directly reference the Declaration

Parameters

decl	Declaration to reference.
specialization	Specialization index (see class documentation).

Definition at line 39 of file declarationid.cpp.

DeclarationId() [3/3]

KDevelop::DeclarationId::DeclarationId

(

const DeclarationId &

rhs

)

Definition at line 47 of file declarationid.cpp.

~DeclarationId()

KDevelop::DeclarationId::~DeclarationId

(

)

Definition at line 60 of file declarationid.cpp.

Member Function Documentation

declaration()

Declaration * KDevelop::DeclarationId::declaration	(	const TopDUContext *	context,
		bool	instantiateIfRequired = true
	)		const

Retrieve the declaration, from the perspective of context.

In order to be retrievable, the declaration must be in the symbol table.

Parameters

context	Context in which to search for the Declaration.
instantiateIfRequired	Whether the declaration should be instantiated if required

Returns

the referenced Declaration, or null if none was found.

Todo:

think this over once we don't pull in all imported top-context any more

Definition at line 154 of file declarationid.cpp.

declarations()

KDevVarLengthArray< Declaration * > KDevelop::DeclarationId::declarations

(

const TopDUContext *

context

)

const

Same as declaration(..), but returns all matching declarations if there are multiple.

This also returns found forward-declarations.

Todo:

think this over once we don't pull in all imported top-context any more

Definition at line 97 of file declarationid.cpp.

hash()

uint KDevelop::DeclarationId::hash ( ) const

inline

Hash function for this declaration identifier.

Warning

This may return different hashes for the same declaration, depending on whether the id is direct or indirect, and thus you cannot compare hashes for declaration equality (use operator==() instead)

Definition at line 126 of file declarationid.h.

isDirect()

bool KDevelop::DeclarationId::isDirect

(

)

const

Determine whether this DeclarationId directly references a Declaration by indices, or if it uses identifiers and other data to reference the Declaration.

Returns

true if direct, false if indirect.

Definition at line 82 of file declarationid.cpp.

isValid()

bool KDevelop::DeclarationId::isValid ( ) const

inline

Determine whether this declaration identifier references a valid declaration.

Definition at line 114 of file declarationid.h.

operator!=()

bool KDevelop::DeclarationId::operator!= ( const DeclarationId &  rhs ) const

inline

Not equal operator.

Parameters

rhs	declaration identifier to compare.

Returns

true if not equal, otherwise false.

Definition at line 106 of file declarationid.h.

operator=()

DeclarationId & KDevelop::DeclarationId::operator=

(

const DeclarationId &

rhs

)

Definition at line 67 of file declarationid.cpp.

operator==()

bool KDevelop::DeclarationId::operator== ( const DeclarationId &  rhs ) const

inline

Equality operator.

Parameters

rhs	declaration identifier to compare.

Returns

true if equal, otherwise false.

Definition at line 87 of file declarationid.h.

qualifiedIdentifier()

QualifiedIdentifier KDevelop::DeclarationId::qualifiedIdentifier

(

)

const

Return the qualified identifier for this declaration.

Warning

This is relatively expensive, and not 100% correct in all cases(actually a top-context would be needed to resolve this correctly), so avoid using this, except for debugging purposes.

Definition at line 217 of file declarationid.cpp.

setSpecialization()

void KDevelop::DeclarationId::setSpecialization

(

const IndexedInstantiationInformation &

spec

)

Set the specialization index (see class documentation).

Parameters

spec	the new specialization index.

Definition at line 87 of file declarationid.cpp.

specialization()

IndexedInstantiationInformation KDevelop::DeclarationId::specialization

(

)

const

Retrieve the specialization index (see class documentation).

Returns

the specialization index.

Definition at line 92 of file declarationid.cpp.

Member Data Documentation

m_directData

IndexedDeclaration KDevelop::DeclarationId::m_directData

Definition at line 195 of file declarationid.h.

m_indirectData

Indirect KDevelop::DeclarationId::m_indirectData

Definition at line 194 of file declarationid.h.

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

• declarationid.h
• declarationid.cpp