Package com.github.javaparser.ast.type

Class UnknownType

java.lang.Object

com.github.javaparser.ast.Node

com.github.javaparser.ast.type.Type

com.github.javaparser.ast.type.UnknownType

All Implemented Interfaces:

NodeWithRange<Node>, NodeWithTokenRange<Node>, Observable, ConvertibleToUsage, Visitable, HasParentNode<Node>, Resolvable<ResolvedType>, Cloneable

public class UnknownType
extends Type

An unknown parameter type object. It plays the role of a null object for lambda parameters that have no explicit type declared. As such, it has no lexical representation and hence gets no comment attributed.

In DoubleToIntFunction d = x -> (int)x + 1; the x parameter in bold has type UnknownType.

Author:

Didier Villevalois

Nested Class Summary

Nested classes/interfaces inherited from class com.github.javaparser.ast.Node

Node.BreadthFirstIterator, Node.DirectChildrenIterator, Node.ObserverRegistrationMode, Node.ParentsVisitor, Node.Parsedness, Node.PostOrderIterator, Node.PreOrderIterator, Node.TreeTraversal

Field Summary

Fields inherited from class com.github.javaparser.ast.Node

ABSOLUTE_BEGIN_LINE, ABSOLUTE_END_LINE, LINE_SEPARATOR_KEY, NODE_BY_BEGIN_POSITION, PHANTOM_KEY, prettyPrinterNoCommentsConfiguration, PRINTER_KEY, SYMBOL_RESOLVER_KEY

Constructor Summary

Constructors

Constructor	Description
UnknownType()
UnknownType(TokenRange tokenRange)	This constructor is used by the parser and is considered private.

Method Summary

Modifier and Type	Method	Description
<R,A> R	accept(GenericVisitor<R,A> v, A arg)	Accept method for visitor support.
<A> void	accept(VoidVisitor<A> v, A arg)	Accept method for visitor support.
String	asString()
UnknownType	asUnknownType()
UnknownType	clone()
ResolvedType	convertToUsage(Context context)	A UnknownType cannot be convertible to ResolvedType.
UnknownTypeMetaModel	getMetaModel()
void	ifUnknownType(Consumer<UnknownType> action)
boolean	isPhantom()
boolean	isUnknownType()
ResolvedType	resolve()
UnknownType	setAnnotations(NodeList<AnnotationExpr> annotations)
Optional<UnknownType>	toUnknownType()

Methods inherited from class com.github.javaparser.ast.type.Type

asArrayType, asClassOrInterfaceType, asIntersectionType, asPrimitiveType, asReferenceType, asTypeParameter, asUnionType, asVarType, asVoidType, asWildcardType, getAnnotation, getAnnotations, getArrayLevel, getElementType, ifArrayType, ifClassOrInterfaceType, ifIntersectionType, ifPrimitiveType, ifReferenceType, ifTypeParameter, ifUnionType, ifVarType, ifVoidType, ifWildcardType, isArrayType, isClassOrInterfaceType, isIntersectionType, isPrimitiveType, isReferenceType, isTypeParameter, isUnionType, isVarType, isVoidType, isWildcardType, remove, replace, toArrayType, toClassOrInterfaceType, toDescriptor, toIntersectionType, toPrimitiveType, toReferenceType, toTypeParameter, toUnionType, toVarType, toVoidType, toWildcardType

Methods inherited from class com.github.javaparser.ast.Node

addOrphanComment, containsData, createDefaultPrinter, createDefaultPrinter, customInitialization, equals, findAll, findAll, findAll, findByRange, findCompilationUnit, findData, findFirst, findFirst, findFirst, findRootNode, getAllContainedComments, getChildNodes, getChildNodesByType, getComment, getData, getDataKeys, getDefaultPrinterConfiguration, getLineEndingStyle, getLineEndingStyleOrDefault, getNodesByType, getOrphanComments, getParentNode, getParentNodeForChildren, getParsed, getPrinter, getPrinter, getRange, getSymbolResolver, getTokenRange, hashCode, hasScope, isAncestorOf, isRegistered, notifyPropertyChange, register, register, registerForSubtree, remove, removeComment, removeData, removeForced, removeOrphanComment, replace, setAsParentNodeOf, setAsParentNodeOf, setBlockComment, setComment, setData, setLineComment, setParentNode, setParsed, setRange, setTokenRange, stream, stream, toString, toString, tryAddImportToParentCompilationUnit, unregister, walk, walk, walk

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.github.javaparser.HasParentNode

findAncestor, findAncestor, findAncestor, hasParentNode, isDescendantOf

Methods inherited from interface com.github.javaparser.ast.nodeTypes.NodeWithRange

containsWithin, containsWithinRange, getBegin, getEnd, hasRange

Constructor Detail

UnknownType

public UnknownType()

UnknownType

public UnknownType(TokenRange tokenRange)

This constructor is used by the parser and is considered private.

Method Detail

accept

public <R,A> R accept(GenericVisitor<R,A> v,
                            A arg)

Description copied from interface: Visitable

Accept method for visitor support.

Type Parameters:

R - the type of the return value of the visitor

A - the type the user argument passed to the visitor

Parameters:

v - the visitor implementation

arg - the argument passed to the visitor (of type A)

Returns:

the result of the visit (of type R)

accept

public <A> void accept(VoidVisitor<A> v,
                       A arg)

Description copied from interface: Visitable

Accept method for visitor support.

Type Parameters:

A - the type the argument passed for the visitor

Parameters:

v - the visitor implementation

arg - any value relevant for the visitor (of type A)

setAnnotations

public UnknownType setAnnotations(NodeList<AnnotationExpr> annotations)

Overrides:

setAnnotations in class Type

asString

public String asString()

Specified by:

asString in class Type

clone

public UnknownType clone()

Overrides:

clone in class Type

getMetaModel

public UnknownTypeMetaModel getMetaModel()

Overrides:

getMetaModel in class Type

Returns:

get JavaParser specific node introspection information.

isUnknownType

public boolean isUnknownType()

Overrides:

isUnknownType in class Type

asUnknownType

public UnknownType asUnknownType()

Overrides:

asUnknownType in class Type

ifUnknownType

public void ifUnknownType(Consumer<UnknownType> action)

Overrides:

ifUnknownType in class Type

resolve

public ResolvedType resolve()

Specified by:

resolve in interface Resolvable<ResolvedType>

Specified by:

resolve in class Type

toUnknownType

public Optional<UnknownType> toUnknownType()

Overrides:

toUnknownType in class Type

isPhantom

public boolean isPhantom()

Overrides:

isPhantom in class Node

convertToUsage

public ResolvedType convertToUsage(Context context)

A UnknownType cannot be convertible to ResolvedType.

Parameters:

type - The type to be converted.

context - The current context.

Returns:

The type resolved.