net.sourceforge.pmd.lang.java.ast.ASTLambdaParameter Maven / Gradle / Ivy
/*
* BSD-style license; for more info see http://pmd.sourceforge.net/license.html
*/
package net.sourceforge.pmd.lang.java.ast;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Formal parameter of a lambda expression. Child of {@link ASTLambdaParameterList}.
*
*
*
* LambdaParameter ::= {@link ASTModifierList LocalVarModifierList} ( "var" | {@link ASTType Type} ) {@link ASTVariableDeclaratorId VariableDeclaratorId}
* | {@link ASTModifierList EmptyModifierList} {@link ASTVariableDeclaratorId VariableDeclaratorId}
*
*
*/
public final class ASTLambdaParameter extends AbstractJavaTypeNode
implements InternalInterfaces.VariableIdOwner,
FinalizableNode {
ASTLambdaParameter(int id) {
super(id);
}
/**
* If true, this formal parameter represents one without explicit types.
* This can appear as part of a lambda expression with java11 using "var".
*
* @see ASTVariableDeclaratorId#isTypeInferred()
*/
public boolean isTypeInferred() {
return getTypeNode() == null;
}
@Override
protected R acceptVisitor(JavaVisitor visitor, P data) {
return visitor.visit(this, data);
}
/**
* Returns the lambda that owns this parameter.
*/
public ASTLambdaExpression getOwner() {
return (ASTLambdaExpression) getParent().getParent();
}
/**
* Returns the declarator ID of this formal parameter.
*/
@Override
@NonNull
public ASTVariableDeclaratorId getVarId() {
return getFirstChildOfType(ASTVariableDeclaratorId.class);
}
/** Returns the type node of this formal parameter. */
@Nullable
public ASTType getTypeNode() {
return getFirstChildOfType(ASTType.class);
}
}