/**
* Copyright (C) 2006-2017 INRIA and contributors
* Spoon - http://spoon.gforge.inria.fr/
*
* This software is governed by the CeCILL-C License under French law and
* abiding by the rules of distribution of free software. You can use, modify
* and/or redistribute the software under the terms of the CeCILL-C license as
* circulated by CEA, CNRS and INRIA at http://www.cecill.info.
*
* This program 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 CeCILL-C License for more details.
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C license and that you accept its terms.
*/
package spoon.support.reflect.declaration;
import spoon.reflect.declaration.CtEnum;
import spoon.reflect.declaration.CtEnumValue;
import spoon.reflect.declaration.CtField;
import spoon.reflect.declaration.CtMethod;
import spoon.reflect.declaration.ModifierKind;
import spoon.reflect.reference.CtTypeReference;
import spoon.reflect.visitor.CtVisitor;
import spoon.support.util.SignatureBasedSortedSet;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
public class CtEnumImpl<T extends Enum<?>> extends CtClassImpl<T> implements CtEnum<T> {
private static final long serialVersionUID = 1L;
private List<CtEnumValue<?>> enumValues = CtElementImpl.emptyList();
private CtMethod<T[]> valuesMethod;
private CtMethod<T> valueOfMethod;
@Override
public void accept(CtVisitor visitor) {
visitor.visitCtEnum(this);
}
@Override
public Set<CtMethod<?>> getAllMethods() {
Set<CtMethod<?>> allMethods = new SignatureBasedSortedSet();
allMethods.addAll(getMethods());
allMethods.addAll(getFactory().Type().get(Enum.class).getMethods());
allMethods.add(valuesMethod());
allMethods.add(valueOfMethod());
return allMethods;
}
@Override
public boolean isSubtypeOf(CtTypeReference<?> type) {
return getReference().isSubtypeOf(type);
}
@Override
public <C extends CtEnum<T>> C addEnumValue(CtEnumValue<?> enumValue) {
if (enumValue == null) {
return (C) this;
}
if (enumValues == CtElementImpl.<CtEnumValue<?>>emptyList()) {
enumValues = new ArrayList<>();
}
if (!enumValues.contains(enumValue)) {
enumValue.setParent(this);
enumValues.add(enumValue);
}
// enum value already exists.
return (C) this;
}
@Override
public boolean removeEnumValue(CtEnumValue<?> enumValue) {
return enumValues.remove(enumValue);
}
@Override
public CtEnumValue<?> getEnumValue(String name) {
for (CtEnumValue<?> enumValue : enumValues) {
if (enumValue.getSimpleName().equals(name)) {
return enumValue;
}
}
return null;
}
@Override
public List<CtEnumValue<?>> getEnumValues() {
return Collections.unmodifiableList(enumValues);
}
@Override
public <C extends CtEnum<T>> C setEnumValues(List<CtEnumValue<?>> enumValues) {
if (enumValues == null || enumValues.isEmpty()) {
this.enumValues = emptyList();
return (C) this;
}
this.enumValues.clear();
for (CtEnumValue<?> enumValue : enumValues) {
addEnumValue(enumValue);
}
return (C) this;
}
@Override
public List<CtField<?>> getFields() {
List<CtField<?>> result = new ArrayList<>();
result.addAll(getEnumValues());
result.addAll(super.getFields());
return result;
}
@Override
public CtField<?> getField(String name) {
final CtField<?> field = super.getField(name);
if (field == null) {
return getEnumValue(name);
}
return field;
}
@Override
public CtEnum<T> clone() {
return (CtEnum<T>) super.clone();
}
@Override
public CtTypeReference<?> getSuperclass() {
return getFactory().Type().createReference(Enum.class);
}
private CtMethod valuesMethod() {
if (valuesMethod == null) {
valuesMethod = getFactory().Core().createMethod();
valuesMethod.setParent(this);
valuesMethod.addModifier(ModifierKind.PUBLIC);
valuesMethod.addModifier(ModifierKind.STATIC);
valuesMethod.setSimpleName("values");
valuesMethod.setImplicit(true);
valuesMethod.setType(factory.Type().createArrayReference(getReference()));
}
return valuesMethod;
}
private CtMethod valueOfMethod() {
if (valueOfMethod == null) {
valueOfMethod = getFactory().Core().createMethod();
valueOfMethod.setParent(this);
valueOfMethod.addModifier(ModifierKind.PUBLIC);
valueOfMethod.addModifier(ModifierKind.STATIC);
valueOfMethod.setSimpleName("valueOf");
valueOfMethod.setImplicit(true);
valueOfMethod.addThrownType(
getFactory().Type().createReference(IllegalArgumentException.class));
valueOfMethod.setType(getReference());
factory.Method().createParameter(valuesMethod, factory.Type().STRING, "name");
}
return valueOfMethod;
}
@Override
public <R> CtMethod<R> getMethod(String name, CtTypeReference<?>... parameterTypes) {
if ("values".equals(name) && parameterTypes.length == 0) {
return valuesMethod();
} else if ("valueOf".equals(name) && parameterTypes.length == 1 && parameterTypes[0].equals(factory.Type().STRING)) {
return valueOfMethod();
} else {
return super.getMethod(name, parameterTypes);
}
}
@Override
public <R> CtMethod<R> getMethod(CtTypeReference<R> returnType, String name, CtTypeReference<?>... parameterTypes) {
if ("values".equals(name)
&& parameterTypes.length == 0
&& returnType.equals(getReference())) {
return valuesMethod();
} else if ("valueOf".equals(name)
&& parameterTypes.length == 1
&& parameterTypes[0].equals(factory.Type().STRING)
&& returnType.equals(factory.Type().createArrayReference(getReference()))) {
return valueOfMethod();
} else {
return super.getMethod(returnType, name, parameterTypes);
}
}
}