CodeQL library for C/C++
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Class FriendDecl

A C++ friend declaration [N4140 11.3]. For example the two friend declarations in class A of the following code:

class A {
  friend void f(int);
  friend class X;
};

void f(int x) { ... }
class X { ... };

Import path

import cpp

Direct supertypes

Indirect supertypes

Predicates

getADeclarationLocation

Gets the location of this friend declaration. The result is the location of the friend declaration itself, not the class or function that it refers to. Note: to get the target of the friend declaration, use getFriend.

getAPrimaryQlClass

Gets the name of a primary CodeQL class to which this element belongs.

getASpecifier

Friend declarations do not have specifiers. It makes no difference whether they are declared in a public, protected or private section of the class.

getDeclaringClass

Gets the declaring class (also known as the befriending class). For example: A in class A { friend class X }.

getDefinitionLocation

Implements the abstract method Declaration.getDefinitionLocation. A friend declaration cannot be a definition because it is only a link to another class or function. But we have to provide an implementation of this method, so we use the location of the declaration as the location of the definition. Note: to get the target of the friend declaration, use getFriend.

getFriend

Gets the target of this friend declaration. For example: X in class A { friend class X }.

getLocation

Gets the location of this friend declaration.

getName

Gets a descriptive string for this friend declaration.

isTopLevel

Holds if this declaration is a top-level declaration.

Inherited predicates

findRootCause

Gets the source of this element: either itself or a macro that expanded to this element.

from Element
fromLibrary

Holds if this element may be from a library.

from Element
fromSource

Holds if this element may be from source. This predicate holds for all elements, except for those in the dummy file, whose name is the empty string. The dummy file contains declarations that are built directly into the compiler.

from Element
getADeclarationEntry

Gets a declaration entry corresponding to this declaration. See the comment above this class for an explanation of the relationship between Declaration and DeclarationEntry.

from Declaration
getAFile

Gets a file where this element occurs.

from Declaration
getATemplateArgument

Gets a template argument used to instantiate this declaration from a template. When called on a template, this will return a template parameter type for both typed and non-typed parameters.

from Declaration
getATemplateArgumentKind

Gets a template argument used to instantiate this declaration from a template. When called on a template, this will return a non-typed template parameter value.

from Declaration
getCanonicalQLClass

DEPRECATED: use getAPrimaryQlClass instead.

from ElementBase
getDeclaringType

Gets the class where this member is declared, if it is a member. For templates, both the template itself and all instantiations of the template are considered to have the same declaring class.

from Declaration
getDefinition

Gets the declaration entry corresponding to this declaration that is a definition, if any.

from Declaration
getDescription

Gets a description of this Declaration for display purposes.

from Declaration
getEnclosingElement

Gets the closest Element enclosing this one.

from Element
getFile

Gets the primary file where this element occurs.

from Element
getNamespace

Gets the innermost namespace which contains this declaration.

from Declaration
getNumberOfTemplateArguments

Gets the number of template arguments for this declaration.

from Declaration
getParentScope

Gets the parent scope of this Element, if any. A scope is a Type (Class / Enum), a Namespace, a BlockStmt, a Function, or certain kinds of Statement.

from Element
getPrimaryQlClasses

Gets a comma-separated list of the names of the primary CodeQL classes to which this element belongs.

from ElementBase
getQualifiedName

Gets the name of the declaration, fully qualified with its namespace and declaring type.

from Declaration
getTemplateArgument

Gets the ith template argument used to instantiate this declaration from a template.

from Declaration
getTemplateArgumentKind

Gets the ith template argument value used to instantiate this declaration from a template. When called on a template, this will return the ith template parameter value if it exists.

from Declaration
hasDeclaringType

Holds if this declaration is a member of a class/struct/union.

from Declaration
hasDefinition

Holds if the declaration has a definition.

from Declaration
hasGlobalName

Holds if this declaration has the given name in the global namespace.

from Declaration
hasGlobalOrStdName

Holds if this declaration has the given name in the global namespace or the std namespace.

from Declaration
hasGlobalOrStdOrBslName

Holds if this declaration has the given name in the global namespace, the std namespace or the bsl namespace. We treat std and bsl as the same in some of our models.

from Declaration
hasName

Holds if this declaration has the given name.

from Declaration
hasQualifiedName

DEPRECATED: Prefer hasGlobalName or the 2-argument or 3-argument hasQualifiedName predicates. To get the exact same results as this predicate in all edge cases, use getQualifiedName().

from Declaration
hasQualifiedName

Holds if this declaration has a fully-qualified name with a name-space component of namespaceQualifier, a declaring type of typeQualifier, and a base name of baseName. Template parameters and arguments are stripped from all components. Missing components are "".

from Declaration
hasQualifiedName

Holds if this declaration has a fully-qualified name with a name-space component of namespaceQualifier, no declaring type, and a base name of baseName.

from Declaration
hasSpecifier

Holds if this declaration has a specifier with the given name.

from Declaration
isAffectedByMacro

Holds if this element is affected in any way by a macro. All elements that are totally or partially generated by a macro are included, so this is a super-set of isInMacroExpansion.

from Element
isDefined

DEPRECATED: Use hasDefinition instead.

from Declaration
isFromTemplateInstantiation

Holds if this Element is a part of a template instantiation (but not the template itself).

from Element
isFromUninstantiatedTemplate

Holds if this Element is part of a template template (not if it is part of an instantiation of template). This means it is represented in the database purely as syntax and without guarantees on the presence or correctness of type-based operations such as implicit conversions.

from Element
isInMacroExpansion

Holds if this element comes from a macro expansion. Only elements that are entirely generated by a macro are included - for elements that partially come from a macro, see isAffectedByMacro.

from Element
isMember

Holds if this declaration is a member of a class/struct/union.

from Declaration
isStatic

Holds if this declaration is static.

from Declaration
toString

Gets a textual representation of this element.

from Declaration