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JavaParserEnumDeclaration.java
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/
JavaParserEnumDeclaration.java
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package me.tomassetti.symbolsolver.javaparsermodel.declarations;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.PackageDeclaration;
import com.github.javaparser.ast.body.BodyDeclaration;
import com.github.javaparser.ast.body.EnumConstantDeclaration;
import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.type.ClassOrInterfaceType;
import me.tomassetti.symbolsolver.logic.AbstractTypeDeclaration;
import me.tomassetti.symbolsolver.model.declarations.*;
import me.tomassetti.symbolsolver.model.invokations.MethodUsage;
import me.tomassetti.symbolsolver.core.resolution.Context;
import me.tomassetti.symbolsolver.model.resolution.SymbolReference;
import me.tomassetti.symbolsolver.model.resolution.TypeParameter;
import me.tomassetti.symbolsolver.model.resolution.TypeSolver;
import me.tomassetti.symbolsolver.model.typesystem.ArrayType;
import me.tomassetti.symbolsolver.model.typesystem.ReferenceType;
import me.tomassetti.symbolsolver.model.typesystem.ReferenceTypeImpl;
import me.tomassetti.symbolsolver.model.typesystem.Type;
import me.tomassetti.symbolsolver.javaparsermodel.JavaParserFactory;
import me.tomassetti.symbolsolver.javaparsermodel.UnsolvedSymbolException;
import me.tomassetti.symbolsolver.reflectionmodel.ReflectionFactory;
import java.io.Serializable;
import java.util.*;
public class JavaParserEnumDeclaration extends AbstractTypeDeclaration implements EnumDeclaration {
private TypeSolver typeSolver;
private com.github.javaparser.ast.body.EnumDeclaration wrappedNode;
public JavaParserEnumDeclaration(com.github.javaparser.ast.body.EnumDeclaration wrappedNode, TypeSolver typeSolver) {
this.wrappedNode = wrappedNode;
this.typeSolver = typeSolver;
}
@Override
public String toString() {
return "JavaParserEnumDeclaration{" +
"wrappedNode=" + wrappedNode +
'}';
}
@Override
public boolean isAssignableBy(TypeDeclaration other) {
return isAssignableBy(new ReferenceTypeImpl(other, typeSolver));
}
@Override
public Set<MethodDeclaration> getDeclaredMethods() {
Set<MethodDeclaration> methods = new HashSet<>();
for (BodyDeclaration member : wrappedNode.getMembers()) {
if (member instanceof com.github.javaparser.ast.body.MethodDeclaration) {
methods.add(new JavaParserMethodDeclaration((com.github.javaparser.ast.body.MethodDeclaration)member, typeSolver));
}
}
return methods;
}
public Context getContext() {
return JavaParserFactory.getContext(wrappedNode, typeSolver);
}
@Override
public String getName() {
return wrappedNode.getName();
}
@Override
public boolean isField() {
return false;
}
@Override
public boolean isParameter() {
return false;
}
@Override
public boolean isType() {
return true;
}
@Override
public boolean hasDirectlyAnnotation(String canonicalName) {
throw new UnsupportedOperationException();
}
@Override
public boolean canBeAssignedTo(TypeDeclaration other) {
// Enums cannot be extended
if (other.getQualifiedName().equals(this.getQualifiedName())) {
return true;
}
if (other.getQualifiedName().equals(Enum.class.getCanonicalName())) {
return true;
}
// Enum implements Comparable and Serializable
if (other.getQualifiedName().equals(Comparable.class.getCanonicalName())) {
return true;
}
if (other.getQualifiedName().equals(Serializable.class.getCanonicalName())) {
return true;
}
if (other.getQualifiedName().equals(Object.class.getCanonicalName())) {
return true;
}
return false;
}
@Override
public boolean isClass() {
return false;
}
@Override
public boolean isInterface() {
return false;
}
@Override
public String getQualifiedName() {
String containerName = containerName("", wrappedNode.getParentNode());
if (containerName.isEmpty()) {
return wrappedNode.getName();
} else {
return containerName + "." + wrappedNode.getName();
}
}
private String containerName(String base, Node container) {
if (container instanceof com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) {
String b = containerName(base, container.getParentNode());
String cn = ((com.github.javaparser.ast.body.ClassOrInterfaceDeclaration) container).getName();
if (b.isEmpty()) {
return cn;
} else {
return b + "." + cn;
}
} else if (container instanceof CompilationUnit) {
PackageDeclaration p = ((CompilationUnit) container).getPackage();
if (p != null) {
String b = p.getName().toString();
if (base.isEmpty()) {
return b;
} else {
return b + "." + base;
}
} else {
return base;
}
} else if (container != null) {
return containerName(base, container.getParentNode());
} else {
return base;
}
}
@Override
public boolean isAssignableBy(Type type) {
if (type.isNull()) {
return true;
}
return type.isReferenceType() && type.asReferenceTypeUsage().getQualifiedName().equals(getQualifiedName());
}
@Override
public boolean isTypeVariable() {
return false;
}
@Override
public FieldDeclaration getField(String name) {
if (this.wrappedNode.getMembers() != null) {
for (BodyDeclaration member : this.wrappedNode.getMembers()) {
if (member instanceof com.github.javaparser.ast.body.FieldDeclaration) {
com.github.javaparser.ast.body.FieldDeclaration field = (com.github.javaparser.ast.body.FieldDeclaration) member;
for (VariableDeclarator vd : field.getVariables()) {
if (vd.getId().getName().equals(name)) {
return new JavaParserFieldDeclaration(vd, typeSolver);
}
}
}
}
}
if (this.wrappedNode.getEntries() != null) {
for (EnumConstantDeclaration member : this.wrappedNode.getEntries()) {
if (member.getName().equals(name)) {
return new JavaParserFieldDeclaration(member, typeSolver);
}
}
}
throw new UnsolvedSymbolException("Field " + name);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
JavaParserEnumDeclaration that = (JavaParserEnumDeclaration) o;
if (!wrappedNode.equals(that.wrappedNode)) return false;
return true;
}
@Override
public int hashCode() {
return wrappedNode.hashCode();
}
@Override
protected TypeSolver typeSolver() {
return typeSolver;
}
@Override
public SymbolReference<MethodDeclaration> solveMethod(String name, List<Type> parameterTypes) {
if (name.equals("values") && parameterTypes.isEmpty()) {
return SymbolReference.solved(new ValuesMethod());
}
// TODO add methods inherited from Enum
return getContext().solveMethod(name, parameterTypes, typeSolver);
}
public Optional<MethodUsage> solveMethodAsUsage(String name, List<Type> parameterTypes, TypeSolver typeSolver, Context invokationContext, List<Type> typeParameterValues) {
if (name.equals("values") && parameterTypes.isEmpty()) {
return Optional.of(new ValuesMethod().getUsage(null));
}
// TODO add methods inherited from Enum
return getContext().solveMethodAsUsage(name, parameterTypes, typeSolver);
}
@Override
public boolean hasField(String name) {
if (this.wrappedNode.getMembers() != null) {
for (BodyDeclaration member : this.wrappedNode.getMembers()) {
if (member instanceof com.github.javaparser.ast.body.FieldDeclaration) {
com.github.javaparser.ast.body.FieldDeclaration field = (com.github.javaparser.ast.body.FieldDeclaration) member;
for (VariableDeclarator vd : field.getVariables()) {
if (vd.getId().getName().equals(name)) {
return true;
}
}
}
}
}
if (this.wrappedNode.getEntries() != null) {
for (EnumConstantDeclaration member : this.wrappedNode.getEntries()) {
if (member.getName().equals(name)) {
return true;
}
}
}
return false;
}
@Override
public List<FieldDeclaration> getAllFields() {
ArrayList<FieldDeclaration> fields = new ArrayList<>();
if (this.wrappedNode.getMembers() != null) {
for (BodyDeclaration member : this.wrappedNode.getMembers()) {
if (member instanceof com.github.javaparser.ast.body.FieldDeclaration) {
com.github.javaparser.ast.body.FieldDeclaration field = (com.github.javaparser.ast.body.FieldDeclaration) member;
for (VariableDeclarator vd : field.getVariables()) {
fields.add(new JavaParserFieldDeclaration(vd, typeSolver));
}
}
}
}
if (this.wrappedNode.getEntries() != null) {
for (EnumConstantDeclaration member : this.wrappedNode.getEntries()) {
fields.add(new JavaParserFieldDeclaration(member, typeSolver));
}
}
return fields;
}
@Override
public SymbolReference<? extends ValueDeclaration> solveSymbol(String substring, TypeSolver typeSolver) {
return getContext().solveSymbol(substring, typeSolver);
}
@Override
public SymbolReference<TypeDeclaration> solveType(String substring, TypeSolver typeSolver) {
throw new UnsupportedOperationException();
}
@Override
public List<ReferenceType> getAncestors() {
List<ReferenceType> ancestors = new ArrayList<>();
ReferenceType enumClass = ReflectionFactory.typeUsageFor(Enum.class, typeSolver).asReferenceTypeUsage();
enumClass = enumClass.replaceParam("E", new ReferenceTypeImpl(this, typeSolver)).asReferenceTypeUsage();
ancestors.add(enumClass);
if (wrappedNode.getImplements() != null) {
for (ClassOrInterfaceType implementedType : wrappedNode.getImplements()) {
SymbolReference<TypeDeclaration> implementedDeclRef = solveType(implementedType.getName(), typeSolver);
if (!implementedDeclRef.isSolved()) {
throw new UnsolvedSymbolException(implementedType.getName());
}
ancestors.add(new ReferenceTypeImpl(implementedDeclRef.getCorrespondingDeclaration(), typeSolver));
}
}
return ancestors;
}
@Override
public List<TypeParameter> getTypeParameters() {
return Collections.emptyList();
}
/**
* Returns the JavaParser node associated with this JavaParserEnumDeclaration.
*
* @return A visitable JavaParser node wrapped by this object.
*/
public com.github.javaparser.ast.body.EnumDeclaration getWrappedNode()
{
return wrappedNode;
}
// Needed by ContextHelper
public class ValuesMethod implements MethodDeclaration {
@Override
public TypeDeclaration declaringType() {
return JavaParserEnumDeclaration.this;
}
@Override
public Type getReturnType() {
return new ArrayType(new ReferenceTypeImpl(JavaParserEnumDeclaration.this, typeSolver));
}
@Override
public int getNoParams() {
return 0;
}
@Override
public ParameterDeclaration getParam(int i) {
throw new UnsupportedOperationException();
}
public MethodUsage getUsage(Node node) {
throw new UnsupportedOperationException();
}
public MethodUsage resolveTypeVariables(Context context, List<Type> parameterTypes) {
return new MethodUsage(this);
}
@Override
public boolean isAbstract() {
throw new UnsupportedOperationException();
}
@Override
public boolean isDefaultMethod() {
return false;
}
@Override
public String getName() {
return "values";
}
@Override
public List<TypeParameter> getTypeParameters() {
return Collections.emptyList();
}
@Override
public AccessLevel accessLevel() {
throw new UnsupportedOperationException();
}
}
@Override
public AccessLevel accessLevel() {
throw new UnsupportedOperationException();
}
}