TypeChecker class abstract

An abstraction around doing static type checking at compile/build time.

Constructors

TypeChecker.any(Iterable<TypeChecker> checkers)
Creates a new TypeChecker that delegates to other checkers.
const
factory
TypeChecker.every(Iterable<TypeChecker> checkers)
Creates a new TypeChecker that delegates to other checkers.
const
factory
TypeChecker.fromName(String name, {String? packageName})
Checks that the element has a specific name, and optionally checks that it is defined from a specific package.
const
factory
TypeChecker.fromPackage(String packageName)
Checks that the element comes from a specific package.
const
factory
TypeChecker.fromStatic(DartType type)
Create a new TypeChecker backed by a static type.
const
factory
TypeChecker.fromUrl(dynamic url)
Create a new TypeChecker backed by a library url.
const
factory

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

annotationsOf(Element element, {bool throwOnUnresolved = true}) Iterable<DartObject>
Returns annotating constants on element assignable to this type.
annotationsOfExact(Element element, {bool throwOnUnresolved = true}) Iterable<DartObject>
Returns annotating constants on element of exactly this type.
firstAnnotationOf(Element element, {bool throwOnUnresolved = true}) → DartObject?
Returns the first constant annotating element assignable to this type.
firstAnnotationOfExact(Element element, {bool throwOnUnresolved = true}) → DartObject?
Returns the first constant annotating element that is exactly this type.
hasAnnotationOf(Element element, {bool throwOnUnresolved = true}) bool
Returns if a constant annotating element is assignable to this type.
hasAnnotationOfExact(Element element, {bool throwOnUnresolved = true}) bool
Returns if a constant annotating element is exactly this type.
isAssignableFrom(Element element) bool
Returns true if the type of element can be assigned to this type.
isAssignableFromType(DartType staticType) bool
Returns true if staticType can be assigned to this type.
isExactly(Element element) bool
Returns true if representing the exact same class as element.
isExactlyType(DartType staticType) bool
Returns true if representing the exact same type as staticType.
isSuperOf(Element element) bool
Returns true if representing a super class of element.
isSuperTypeOf(DartType staticType) bool
Returns true if representing a super type of staticType.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

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