ExtensionElement class Null safety

An element that represents an extension.

Clients may not extend, implement or mix-in this class.

Implemented types

Constructors

ExtensionElement()

Properties

accessors List<PropertyAccessorElement>
Return a list containing all of the accessors (getters and setters) declared in this extension.
read-only
context → AnalysisContext
Return the analysis context in which this element is defined.
read-onlyinherited
declaration Element
Return the declaration of this element. If the element is a view on an element, e.g. a method from an interface type, with substituted type parameters, return the corresponding element from the class, without any substitutions. If this element is already a declaration (or a synthetic element, e.g. a synthetic property accessor), return itself.
read-onlyinherited
displayName String
Return the display name of this element, possibly the empty string if this element does not have a name.
read-onlyinherited
documentationComment String?
Return the content of the documentation comment (including delimiters) for this element, or null if this element does not or cannot have documentation.
read-onlyinherited
enclosingElement CompilationUnitElement
Return the element that either physically or logically encloses this element. This will be null if this element is a library because libraries are the top-level elements in the model.
read-onlyoverride
extendedType DartType
Return the type that is extended by this extension.
read-only
fields List<FieldElement>
Return a list containing all of the fields declared in this extension.
read-only
hasAlwaysThrows bool
Return true if this element has an annotation of the form @alwaysThrows.
read-onlyinherited
hasDeprecated bool
Return true if this element has an annotation of the form @deprecated or @Deprecated('..').
read-onlyinherited
hasDoNotStore bool
Return true if this element has an annotation of the form @doNotStore.
read-onlyinherited
hasFactory bool
Return true if this element has an annotation of the form @factory.
read-onlyinherited
hashCode int
The hash code for this object.
read-onlyinherited
hasInternal bool
Return true if this element has an annotation of the form @internal.
read-onlyinherited
hasIsTest bool
Return true if this element has an annotation of the form @isTest.
read-onlyinherited
hasIsTestGroup bool
Return true if this element has an annotation of the form @isTestGroup.
read-onlyinherited
hasJS bool
Return true if this element has an annotation of the form @JS(..).
read-onlyinherited
hasLiteral bool
Return true if this element has an annotation of the form @literal.
read-onlyinherited
hasMustCallSuper bool
Return true if this element has an annotation of the form @mustCallSuper.
read-onlyinherited
hasNonVirtual bool
Return true if this element has an annotation of the form @nonVirtual.
read-onlyinherited
hasOptionalTypeArgs bool
Return true if this element has an annotation of the form @optionalTypeArgs.
read-onlyinherited
hasOverride bool
Return true if this element has an annotation of the form @override.
read-onlyinherited
hasProtected bool
Return true if this element has an annotation of the form @protected.
read-onlyinherited
hasRequired bool
Return true if this element has an annotation of the form @required.
read-onlyinherited
hasSealed bool
Return true if this element has an annotation of the form @sealed.
read-onlyinherited
hasUseResult bool
Return true if this element has an annotation of the form @useResult or @UseResult('..').
read-onlyinherited
hasVisibleForTemplate bool
Return true if this element has an annotation of the form @visibleForTemplate.
read-onlyinherited
hasVisibleForTesting bool
Return true if this element has an annotation of the form @visibleForTesting.
read-onlyinherited
id int
The unique integer identifier of this element.
read-onlyinherited
isPrivate bool
Return true if this element is private. Private elements are visible only within the library in which they are declared.
read-onlyinherited
isPublic bool
Return true if this element is public. Public elements are visible within any library that imports the library in which they are declared.
read-onlyinherited
isSimplyBounded bool
If the element defines a type, indicates whether the type may safely appear without explicit type parameters as the bounds of a type parameter declaration.
read-onlyinherited
isSynthetic bool
Return true if this element is synthetic. A synthetic element is an element that is not represented in the source code explicitly, but is implied by the source code, such as the default constructor for a class that does not explicitly define any constructors.
read-onlyinherited
kind ElementKind
Return the kind of element that this is.
read-onlyinherited
library LibraryElement
Return the library that contains this element. This will be the element itself if it is a library element. This will be null if this element is MultiplyDefinedElement that is not contained in a library.
read-onlyinherited
librarySource → Source
If this target is associated with a library, return the source of the library's defining compilation unit; otherwise return null.
read-onlyinherited
location ElementLocation?
Return an object representing the location of this element in the element model. The object can be used to locate this element at a later time.
read-onlyinherited
metadata List<ElementAnnotation>
Return a list containing all of the metadata associated with this element. The array will be empty if the element does not have any metadata or if the library containing this element has not yet been resolved.
read-onlyinherited
methods List<MethodElement>
Return a list containing all of the methods declared in this extension.
read-only
name String?
Return the name of this element, or null if this element does not have a name.
read-onlyinherited
nameLength int
Return the length of the name of this element in the file that contains the declaration of this element, or 0 if this element does not have a name.
read-onlyinherited
nameOffset int
Return the offset of the name of this element in the file that contains the declaration of this element, or -1 if this element is synthetic, does not have a name, or otherwise does not have an offset.
read-onlyinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
session AnalysisSession?
Return the analysis session in which this element is defined.
read-onlyinherited
source → Source
Return the source associated with this target, or null if this target is not associated with a source.
read-onlyinherited
typeParameters List<TypeParameterElement>
Return a list containing all of the type parameters declared by this element directly. This does not include type parameters that are declared by any enclosing elements.
read-onlyinherited

Methods

accept<T>(ElementVisitor<T> visitor) → T?
Use the given visitor to visit this element. Return the value returned by the visitor as a result of visiting this element.
inherited
getDisplayString({required bool withNullability}) String
Return the presentation of this element as it should appear when presented to users.
inherited
getExtendedDisplayName(String? shortName) String
Return a display name for the given element that includes the path to the compilation unit in which the type is defined. If shortName is null then displayName will be used as the name of this element. Otherwise the provided name will be used.
inherited
getGetter(String name) PropertyAccessorElement?
Return the element representing the getter with the given name that is declared in this extension, or null if this extension does not declare a getter with the given name.
getMethod(String name) MethodElement?
Return the element representing the method with the given name that is declared in this extension, or null if this extension does not declare a method with the given name.
getSetter(String name) PropertyAccessorElement?
Return the element representing the setter with the given name that is declared in this extension, or null if this extension does not declare a setter with the given name.
isAccessibleIn(LibraryElement? library) bool
Return true if this element, assuming that it is within scope, is accessible to code in the given library. This is defined by the Dart Language Specification in section 3.2:
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
thisOrAncestorMatching<E extends Element>(Predicate<Element> predicate) → E?
Return either this element or the most immediate ancestor of this element for which the predicate returns true, or null if there is no such element.
inherited
thisOrAncestorOfType<E extends Element>() → E?
Return either this element or the most immediate ancestor of this element that has the given type, or null if there is no such element.
inherited
toString() String
A string representation of this object.
inherited
visitChildren(ElementVisitor visitor) → void
Use the given visitor to visit all of the children of this element. There is no guarantee of the order in which the children will be visited.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited