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HandleReflectInvokeCallInjector.java

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package org.netbeans.lib.profiler.instrumentation;

import org.netbeans.lib.profiler.classfile.ClassInfo;
import org.netbeans.lib.profiler.global.CommonConstants;


/**
 * Specialized subclass of Injector, that provides injection of our standard handleJavaLangReflectMethodInvoke(Method method)
 * call into the java.lang.reflect.Method.invoke() method.
 *
 *  @author Misha Dmitriev
 */
00053 class HandleReflectInvokeCallInjector extends SpecialCallInjector {
    //~ Constructors -------------------------------------------------------------------------------------------------------------

    HandleReflectInvokeCallInjector(ClassInfo clazz, int baseCPoolCount, int methodIdx) {
        super(clazz, baseCPoolCount, methodIdx);
        targetMethodIdx = CPExtensionsRepository.miContents_HandleReflectInvokeMethodIdx + baseCPoolCount;
        initializeInjectedCode();
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    private void initializeInjectedCode() {
        injectedCodeLen = 4;
        injectedCode = new byte[injectedCodeLen];
        injectedCode[0] = (byte) opc_aload_0;
        injectedCode[1] = (byte) opc_invokestatic;
        // Positions 2, 3 are occupied by method index
        injectedCodeMethodIdxPos = 2;
    }
}

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