Package net.sourceforge.pmd.lang.java.ast

Interface TypeNode

All Superinterfaces:

net.sourceforge.pmd.lang.ast.impl.GenericNode<JavaNode>, JavaNode, net.sourceforge.pmd.lang.ast.impl.javacc.JjtreeNode<JavaNode>, net.sourceforge.pmd.lang.ast.Node, net.sourceforge.pmd.reporting.Reportable, net.sourceforge.pmd.lang.ast.TextAvailableNode

All Known Subinterfaces:

ASTAssignableExpr, ASTAssignableExpr.ASTNamedReferenceExpr, ASTExpression, ASTLiteral, ASTPattern, ASTPrimaryExpression, ASTReferenceType, ASTType, ASTTypeDeclaration, FunctionalExpression, InvocationNode, QualifiableExpression

All Known Implementing Classes:

ASTAmbiguousName, ASTAnnotation, ASTAnnotationTypeDeclaration, ASTAnonymousClassDeclaration, ASTArrayAccess, ASTArrayAllocation, ASTArrayInitializer, ASTArrayType, ASTAssignmentExpression, ASTBooleanLiteral, ASTCastExpression, ASTCharLiteral, ASTClassDeclaration, ASTClassLiteral, ASTClassType, ASTConditionalExpression, ASTConstructorCall, ASTEnumConstant, ASTEnumDeclaration, ASTExplicitConstructorInvocation, ASTFieldAccess, ASTFormalParameter, ASTImplicitClassDeclaration, ASTInfixExpression, ASTIntersectionType, ASTLambdaExpression, ASTLambdaParameter, ASTMethodCall, ASTMethodReference, ASTNullLiteral, ASTNumericLiteral, ASTPatternExpression, ASTPrimitiveType, ASTRecordComponent, ASTRecordDeclaration, ASTRecordPattern, ASTStringLiteral, ASTSuperExpression, ASTSwitchExpression, ASTTemplateExpression, ASTThisExpression, ASTTypeExpression, ASTTypeParameter, ASTTypePattern, ASTUnaryExpression, ASTUnionType, ASTUnnamedPattern, ASTVariableAccess, ASTVariableId, ASTVoidType, ASTWildcardType

public interface TypeNode
extends JavaNode

A node that has a statically known type. This includes e.g. types, which are explicitly written types, and expressions, whose types is determined from their form, or through type inference.

Field Summary

Fields inherited from interface net.sourceforge.pmd.lang.ast.Node

COORDS_COMPARATOR

Method Summary

Modifier and Type	Method	Description
default @NonNull JTypeMirror	getTypeMirror()	Returns the compile-time type of this node.
JTypeMirror	getTypeMirror(TypingContext typing)

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.GenericNode

ancestors, ancestorsOrSelf, asStream, children, descendants, descendantsOrSelf, getChild, getFirstChild, getLastChild, getNextSibling, getParent, getPreviousSibling

Methods inherited from interface net.sourceforge.pmd.lang.java.ast.JavaNode

getEnclosingType, getRoot, getSymbolTable, getTypeSystem

Methods inherited from interface net.sourceforge.pmd.lang.ast.impl.javacc.JjtreeNode

getFirstToken, getLastToken, tokens

Methods inherited from interface net.sourceforge.pmd.lang.ast.Node

acceptVisitor, ancestors, children, compareLocation, descendants, firstChild, getAstInfo, getBeginColumn, getBeginLine, getEndColumn, getEndLine, getImage, getIndexInParent, getLanguageVersion, getNumChildren, getReportLocation, getTextDocument, getUserMap, getXPathAttributesIterator, getXPathNodeName, hasImageEqualTo, isFindBoundary

Methods inherited from interface net.sourceforge.pmd.lang.ast.TextAvailableNode

getOriginalText, getText, getTextRegion

Method Detail

getTypeMirror

default @NonNull JTypeMirror getTypeMirror()

Returns the compile-time type of this node. For example, for a string literal, returns the type mirror for String, for a method call, returns the return type of the call, etc.

This method ignores conversions applied to the value of the node because of its context. For example, in 1 + "", the numeric literal will have type int, but it is converted to String by the surrounding concatenation expression. Similarly, in Collections.singletonList(1), the ASTNumericLiteral node has type int, but the type of the method formal is Integer, and boxing is applied at runtime. Possibly, an API will be added to expose this information.

Returns:

The type mirror. Never returns null; if the type is unresolved, returns TypeSystem.UNKNOWN.

getTypeMirror

JTypeMirror getTypeMirror(TypingContext typing)