Class Namespace

A C++ namespace. For example the (single) namespace A in the following code:

namespace A
{
  // ...
}

// ...

namespace A
{
  // ...
}

Note that namespaces are somewhat nebulous entities, as they do not in general have a single well-defined location in the source code. The related notion of a NamespaceDeclarationEntry is rather more concrete, and should be used when a location is required. For example, the std:: namespace is particularly nebulous, as parts of it are defined across a wide range of headers. As a more extreme example, the global namespace is never explicitly declared, but might correspond to a large proportion of the source code.

Import path


                                import cpp

Direct supertypes

Indirect supertypes

Known direct subtypes

Predicates

fromSource	Holds if this namespace may be from source.
getAChildNamespace	Gets a child namespace of this namespace.
getADeclaration	Gets a child declaration of this namespace.
getADeclarationEntry	Gets a declaration of (part of) this namespace.
getAFile	Gets a file which declares (part of) this namespace.
getFriendlyName	Gets a version of the `QualifiedName` that is more suitable for display purposes.
getLocation	Gets the location of the namespace. Most namespaces do not have a single well-defined source location, so a dummy location is returned, unless the namespace has exactly one declaration entry.
getMetrics	Gets the metric namespace.
getName	Gets the simple name of this namespace.
getParentNamespace	Gets the parent namespace, if any.
getQualifiedName	Gets the qualified name of this namespace. For example: `a::b`.
hasName	Holds if this element is named `name`.
isAnonymous	Holds if this namespace is anonymous.
isInline	Holds if the namespace is inline.
toString	Gets a textual representation of this element.

Inherited predicates

findRootCause	Gets the source of this element: either itself or a macro that expanded to this element.	from Element
getANameQualifier	Gets a name qualifier for which this is the qualifying namespace or user-defined type. For example: class `X` is the `NameQualifyingElement` and `X::` is the `NameQualifier`.	from NameQualifyingElement
getAPrimaryQlClass	Gets the name of a primary CodeQL class to which this element belongs.	from ElementBase
getEnclosingElement	Gets the closest `Element` enclosing this one.	from Element
getFile	Gets the primary file where this element occurs.	from Element
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
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
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