/*
* Copyright 2012, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib2.base;
import org.jf.dexlib2.ValueType;
import org.jf.dexlib2.base.reference.BaseTypeReference;
import org.jf.dexlib2.iface.Annotation;
import org.jf.dexlib2.iface.AnnotationElement;
import org.jf.dexlib2.iface.MethodParameter;
import org.jf.dexlib2.iface.value.ArrayEncodedValue;
import org.jf.dexlib2.iface.value.EncodedValue;
import org.jf.dexlib2.iface.value.StringEncodedValue;
import javax.annotation.Nullable;
public abstract class BaseMethodParameter extends BaseTypeReference implements MethodParameter {
@Nullable
@Override
public String getSignature() {
Annotation signatureAnnotation = null;
for (Annotation annotation: getAnnotations()) {
if (annotation.getType().equals("Ldalvik/annotation/Signature;")) {
signatureAnnotation = annotation;
break;
}
}
if (signatureAnnotation == null) {
return null;
}
ArrayEncodedValue signatureValues = null;
for (AnnotationElement annotationElement: signatureAnnotation.getElements()) {
if (annotationElement.getName().equals("value")) {
EncodedValue encodedValue = annotationElement.getValue();
if (encodedValue.getValueType() != ValueType.ARRAY) {
return null;
}
signatureValues = (ArrayEncodedValue)encodedValue;
break;
}
}
if (signatureValues == null) {
return null;
}
StringBuilder sb = new StringBuilder();
for (EncodedValue signatureValue: signatureValues.getValue()) {
if (signatureValue.getValueType() != ValueType.STRING) {
return null;
}
sb.append(((StringEncodedValue)signatureValue).getValue());
}
return sb.toString();
}
}