Package com.tonic.analysis.execution.invoke

Class DelegatingHandler

java.lang.Object

com.tonic.analysis.execution.invoke.DelegatingHandler

All Implemented Interfaces:

InvocationHandler

public final class DelegatingHandler
extends Object
implements InvocationHandler

Invocation handler that routes every call through a user-supplied callback, converting thrown Java exceptions into guest heap exceptions.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	DelegatingHandler.InvocationCallback	Callback that performs a delegated method invocation and returns its concrete result.

Constructor Summary

Constructors

Constructor	Description
DelegatingHandler(DelegatingHandler.InvocationCallback callback)	Creates a handler that forwards invocations to the given callback.

Method Summary

Modifier and Type	Method	Description
InvocationResult	invoke(MethodEntry method, ObjectInstance receiver, ConcreteValue[] args, InvocationContext context)	Executes a resolved call.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelegatingHandler

public DelegatingHandler(DelegatingHandler.InvocationCallback callback)

Creates a handler that forwards invocations to the given callback.

Parameters:

callback - the delegate that performs each invocation

Throws:

IllegalArgumentException - if callback is null

Method Detail

invoke

public InvocationResult invoke(MethodEntry method,
                               ObjectInstance receiver,
                               ConcreteValue[] args,
                               InvocationContext context)

Description copied from interface: InvocationHandler

Executes a resolved call.

Specified by:

invoke in interface InvocationHandler

Parameters:

method - the resolved target

receiver - the instance for an instance call, null for a static call

args - the argument values in declaration order

context - the interpreter services available for the duration of the call

Returns:

the outcome: a completed value, a guest exception, a delegation, or a frame to push