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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.annotationProcessors.classloader;
import org.mozilla.gecko.annotationProcessors.AnnotationInfo;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
/**
* Union type to hold either a method, field, or ctor. Allows us to iterate "The generatable stuff", despite
* the fact that such things can be of either flavour.
*/
public class AnnotatableEntity {
public enum ENTITY_TYPE {METHOD, NATIVE, FIELD, CONSTRUCTOR}
private final Member mMember;
public final ENTITY_TYPE mEntityType;
public final AnnotationInfo mAnnotationInfo;
public AnnotatableEntity(Member aObject, AnnotationInfo aAnnotationInfo) {
mMember = aObject;
mAnnotationInfo = aAnnotationInfo;
if (aObject instanceof Method) {
if (Modifier.isNative(aObject.getModifiers())) {
mEntityType = ENTITY_TYPE.NATIVE;
} else {
mEntityType = ENTITY_TYPE.METHOD;
}
} else if (aObject instanceof Field) {
mEntityType = ENTITY_TYPE.FIELD;
} else {
mEntityType = ENTITY_TYPE.CONSTRUCTOR;
}
}
public Method getMethod() {
if (mEntityType != ENTITY_TYPE.METHOD && mEntityType != ENTITY_TYPE.NATIVE) {
throw new UnsupportedOperationException("Attempt to cast to unsupported member type.");
}
return (Method) mMember;
}
public Field getField() {
if (mEntityType != ENTITY_TYPE.FIELD) {
throw new UnsupportedOperationException("Attempt to cast to unsupported member type.");
}
return (Field) mMember;
}
public Constructor<?> getConstructor() {
if (mEntityType != ENTITY_TYPE.CONSTRUCTOR) {
throw new UnsupportedOperationException("Attempt to cast to unsupported member type.");
}
return (Constructor<?>) mMember;
}
}
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