// Generated by delombok at Sun Feb 26 12:31:38 KST 2017
package scouter.bytebuddy.implementation;
import scouter.bytebuddy.description.method.MethodDescription;
import scouter.bytebuddy.dynamic.scaffold.InstrumentedType;
import scouter.bytebuddy.implementation.bytecode.ByteCodeAppender;
import scouter.bytebuddy.implementation.bytecode.Removal;
import scouter.bytebuddy.implementation.bytecode.StackManipulation;
import scouter.bytebuddy.implementation.bytecode.member.MethodReturn;
import scouter.bytebuddy.implementation.bytecode.member.MethodVariableAccess;
import scouter.bytebuddy.jar.asm.MethodVisitor;
/**
* This implementation will create a new method which simply calls its super method. If no such method is defined,
* an exception will be thrown. Constructors are considered to have a super method if the direct super class defines
* a constructor with an identical signature. Default methods are invoked as such if they are non-ambiguous. Static
* methods can have a (pseudo) super method if a type that defines such a method is rebased. Rebased types can also
* shadow constructors or methods of an actual super class. Besides implementing constructors, this implementation
* is useful when a method of a super type is not supposed to be altered but should be equipped with additional
* annotations. Furthermore, this implementation allows to hard code a super method call to be performed after
* performing another {@link Implementation}.
*/
public enum SuperMethodCall implements Implementation.Composable {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public ByteCodeAppender appender(Target implementationTarget) {
return new Appender(implementationTarget, Appender.TerminationHandler.RETURNING);
}
@Override
public Implementation andThen(Implementation implementation) {
return new Compound(WithoutReturn.INSTANCE, implementation);
}
/**
* A super method invocation where the return value is dropped instead of returning from the method.
*/
protected enum WithoutReturn implements Implementation {
/**
* The singleton instance.
*/
INSTANCE;
@Override
public InstrumentedType prepare(InstrumentedType instrumentedType) {
return instrumentedType;
}
@Override
public ByteCodeAppender appender(Target implementationTarget) {
return new Appender(implementationTarget, Appender.TerminationHandler.DROPPING);
}
}
/**
* An appender for implementing a {@link SuperMethodCall}.
*/
protected static class Appender implements ByteCodeAppender {
/**
* The target of the current implementation.
*/
private final Target implementationTarget;
/**
* The termination handler to apply after invoking the super method.
*/
private final TerminationHandler terminationHandler;
/**
* Creates a new appender.
*
* @param implementationTarget The implementation target of the current type creation.
* @param terminationHandler The termination handler to apply after invoking the super method.
*/
protected Appender(Target implementationTarget, TerminationHandler terminationHandler) {
this.implementationTarget = implementationTarget;
this.terminationHandler = terminationHandler;
}
@Override
public Size apply(MethodVisitor methodVisitor, Implementation.Context implementationContext, MethodDescription instrumentedMethod) {
StackManipulation superMethodCall = implementationTarget.invokeDominant(instrumentedMethod.asSignatureToken());
if (!superMethodCall.isValid()) {
throw new IllegalStateException("Cannot call super (or default) method for " + instrumentedMethod);
}
StackManipulation.Size stackSize = new StackManipulation.Compound(MethodVariableAccess.allArgumentsOf(instrumentedMethod).prependThisReference(), superMethodCall, terminationHandler.of(instrumentedMethod)).apply(methodVisitor, implementationContext);
return new Size(stackSize.getMaximalSize(), instrumentedMethod.getStackSize());
}
/**
* A handler that determines how to handle the method return value.
*/
protected enum TerminationHandler {
/**
* A termination handler that returns the value of the super method invocation.
*/
RETURNING {
@Override
protected StackManipulation of(MethodDescription methodDescription) {
return MethodReturn.of(methodDescription.getReturnType());
}
},
/**
* A termination handler that simply pops the value of the super method invocation off the stack.
*/
DROPPING {
@Override
protected StackManipulation of(MethodDescription methodDescription) {
return Removal.of(methodDescription.getReturnType());
}
};
/**
* Creates a stack manipulation that represents this handler's behavior.
*
* @param methodDescription The method for which this handler is supposed to create a stack
* manipulation for.
* @return The stack manipulation that implements this handler.
*/
protected abstract StackManipulation of(MethodDescription methodDescription);
}
@java.lang.Override
@java.lang.SuppressWarnings("all")
@javax.annotation.Generated("lombok")
public boolean equals(final java.lang.Object o) {
if (o == this) return true;
if (!(o instanceof SuperMethodCall.Appender)) return false;
final SuperMethodCall.Appender other = (SuperMethodCall.Appender) o;
if (!other.canEqual((java.lang.Object) this)) return false;
final java.lang.Object this$implementationTarget = this.implementationTarget;
final java.lang.Object other$implementationTarget = other.implementationTarget;
if (this$implementationTarget == null ? other$implementationTarget != null : !this$implementationTarget.equals(other$implementationTarget)) return false;
final java.lang.Object this$terminationHandler = this.terminationHandler;
final java.lang.Object other$terminationHandler = other.terminationHandler;
if (this$terminationHandler == null ? other$terminationHandler != null : !this$terminationHandler.equals(other$terminationHandler)) return false;
return true;
}
@java.lang.SuppressWarnings("all")
@javax.annotation.Generated("lombok")
protected boolean canEqual(final java.lang.Object other) {
return other instanceof SuperMethodCall.Appender;
}
@java.lang.Override
@java.lang.SuppressWarnings("all")
@javax.annotation.Generated("lombok")
public int hashCode() {
final int PRIME = 59;
int result = 1;
final java.lang.Object $implementationTarget = this.implementationTarget;
result = result * PRIME + ($implementationTarget == null ? 43 : $implementationTarget.hashCode());
final java.lang.Object $terminationHandler = this.terminationHandler;
result = result * PRIME + ($terminationHandler == null ? 43 : $terminationHandler.hashCode());
return result;
}
}
}