JavaParserTypeAdapter.java
/*
* Copyright (C) 2015-2016 Federico Tomassetti
* Copyright (C) 2017-2024 The JavaParser Team.
*
* This file is part of JavaParser.
*
* JavaParser can be used either under the terms of
* a) the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* b) the terms of the Apache License
*
* You should have received a copy of both licenses in LICENCE.LGPL and
* LICENCE.APACHE. Please refer to those files for details.
*
* JavaParser is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
package com.github.javaparser.symbolsolver.javaparsermodel.declarations;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.NodeList;
import com.github.javaparser.ast.body.*;
import com.github.javaparser.ast.nodeTypes.NodeWithAnnotations;
import com.github.javaparser.ast.nodeTypes.NodeWithMembers;
import com.github.javaparser.ast.nodeTypes.NodeWithSimpleName;
import com.github.javaparser.ast.nodeTypes.NodeWithTypeParameters;
import com.github.javaparser.ast.type.TypeParameter;
import com.github.javaparser.resolution.TypeSolver;
import com.github.javaparser.resolution.declarations.ResolvedAnnotationDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedFieldDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedTypeDeclaration;
import com.github.javaparser.resolution.model.SymbolReference;
import com.github.javaparser.resolution.model.typesystem.ReferenceTypeImpl;
import com.github.javaparser.resolution.types.ResolvedReferenceType;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.javaparsermodel.JavaParserFacade;
import com.github.javaparser.symbolsolver.resolution.SymbolSolver;
import java.util.*;
import java.util.stream.Collectors;
/**
* @author Federico Tomassetti
*/
public class JavaParserTypeAdapter<
T extends Node & NodeWithSimpleName<T> & NodeWithMembers<T> & NodeWithAnnotations<T>> {
private T wrappedNode;
private TypeSolver typeSolver;
public JavaParserTypeAdapter(T wrappedNode, TypeSolver typeSolver) {
this.wrappedNode = wrappedNode;
this.typeSolver = typeSolver;
}
public String getPackageName() {
return AstResolutionUtils.getPackageName(wrappedNode);
}
public String getClassName() {
return AstResolutionUtils.getClassName("", wrappedNode);
}
public String getQualifiedName() {
String containerName =
AstResolutionUtils.containerName(wrappedNode.getParentNode().orElse(null));
if (containerName.isEmpty()) {
return wrappedNode.getName().getId();
}
return containerName + "." + wrappedNode.getName().getId();
}
public boolean isAssignableBy(ResolvedReferenceTypeDeclaration other) {
List<ResolvedReferenceType> ancestorsOfOther = other.getAllAncestors();
ancestorsOfOther.add(new ReferenceTypeImpl(other));
for (ResolvedReferenceType ancestorOfOther : ancestorsOfOther) {
if (ancestorOfOther.getQualifiedName().equals(this.getQualifiedName())) {
return true;
}
}
return false;
}
public boolean isAssignableBy(ResolvedType type) {
if (type.isNull()) {
return true;
}
if (type.isReferenceType()) {
ResolvedReferenceTypeDeclaration other = typeSolver.solveType(type.describe());
return isAssignableBy(other);
}
throw new UnsupportedOperationException();
}
/**
* Resolution should move out of declarations, so that they are pure declarations and the resolution should
* work for JavaParser, Reflection and Javassist classes in the same way and not be specific to the three
* implementations.
*/
@Deprecated
public SymbolReference<ResolvedTypeDeclaration> solveType(String name) {
if (wrappedNode instanceof NodeWithTypeParameters<?>) {
NodeList<TypeParameter> typeParameters = ((NodeWithTypeParameters<?>) wrappedNode).getTypeParameters();
for (com.github.javaparser.ast.type.TypeParameter typeParameter : typeParameters) {
if (typeParameter.getName().getId().equals(name)) {
return SymbolReference.solved(new JavaParserTypeVariableDeclaration(typeParameter, typeSolver));
}
}
}
// Member classes & interfaces
for (BodyDeclaration<?> member : this.wrappedNode.getMembers()) {
if (member instanceof com.github.javaparser.ast.body.TypeDeclaration) {
com.github.javaparser.ast.body.TypeDeclaration<?> internalType =
(com.github.javaparser.ast.body.TypeDeclaration<?>) member;
String prefix = internalType.getName().asString() + ".";
if (internalType.getName().getId().equals(name)) {
if (internalType instanceof ClassOrInterfaceDeclaration) {
if (((ClassOrInterfaceDeclaration) internalType).isInterface()) {
return SymbolReference.solved(new JavaParserInterfaceDeclaration(
(com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) internalType,
typeSolver));
}
return SymbolReference.solved(new JavaParserClassDeclaration(
(com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) internalType, typeSolver));
}
if (internalType instanceof EnumDeclaration) {
return SymbolReference.solved(new JavaParserEnumDeclaration(
(com.github.javaparser.ast.body.EnumDeclaration) internalType, typeSolver));
}
if (internalType instanceof AnnotationDeclaration) {
return SymbolReference.solved(new JavaParserAnnotationDeclaration(
(com.github.javaparser.ast.body.AnnotationDeclaration) internalType, typeSolver));
}
throw new UnsupportedOperationException();
}
if (name.startsWith(prefix) && name.length() > prefix.length()) {
if (internalType instanceof ClassOrInterfaceDeclaration) {
if (((ClassOrInterfaceDeclaration) internalType).isInterface()) {
return new JavaParserInterfaceDeclaration(
(com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) internalType,
typeSolver)
.solveType(name.substring(prefix.length()));
}
return new JavaParserClassDeclaration(
(com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) internalType,
typeSolver)
.solveType(name.substring(prefix.length()));
}
if (internalType instanceof EnumDeclaration) {
return new SymbolSolver(typeSolver)
.solveTypeInType(
new JavaParserEnumDeclaration(
(com.github.javaparser.ast.body.EnumDeclaration) internalType,
typeSolver),
name.substring(prefix.length()));
}
if (internalType instanceof AnnotationDeclaration) {
return SymbolReference.solved(new JavaParserAnnotationDeclaration(
(com.github.javaparser.ast.body.AnnotationDeclaration) internalType, typeSolver));
}
throw new UnsupportedOperationException();
}
}
}
return SymbolReference.unsolved();
}
public Optional<ResolvedReferenceTypeDeclaration> containerType() {
return wrappedNode
.getParentNode()
.filter(parentNode -> !(parentNode instanceof CompilationUnit))
.map(node -> node.getSymbolResolver().toTypeDeclaration(node));
}
public List<ResolvedFieldDeclaration> getFieldsForDeclaredVariables() {
List<ResolvedFieldDeclaration> fields = new ArrayList<>();
if (wrappedNode.getMembers() != null) {
for (BodyDeclaration<?> member : this.wrappedNode.getMembers()) {
if (member.isFieldDeclaration()) {
FieldDeclaration field = member.asFieldDeclaration();
for (VariableDeclarator vd : field.getVariables()) {
fields.add(new JavaParserFieldDeclaration(vd, typeSolver));
}
}
}
}
return fields;
}
/*
* Returns a set of the declared annotation on this type
*/
public Set<ResolvedAnnotationDeclaration> getDeclaredAnnotations() {
return wrappedNode.getAnnotations().stream()
.map(annotation -> annotation.resolve())
.collect(Collectors.toSet());
}
public Set<ResolvedReferenceTypeDeclaration> internalTypes() {
// Use a special Set implementation that avoids calculating the hashCode of the node,
// since this can be very time-consuming for big node trees, and we are sure there are
// no duplicates in the members list.
Set<ResolvedReferenceTypeDeclaration> res = Collections.newSetFromMap(new IdentityHashMap<>());
for (BodyDeclaration<?> member : this.wrappedNode.getMembers()) {
if (member instanceof TypeDeclaration) {
res.add(JavaParserFacade.get(typeSolver).getTypeDeclaration((TypeDeclaration) member));
}
}
return res;
}
}