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Java Bytecode.setMaxLocals方法代码示例

本文整理汇总了Java中scouter.javassist.bytecode.Bytecode.setMaxLocals方法的典型用法代码示例。如果您正苦于以下问题：Java Bytecode.setMaxLocals方法的具体用法？Java Bytecode.setMaxLocals怎么用？Java Bytecode.setMaxLocals使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类scouter.javassist.bytecode.Bytecode的用法示例。


在下文中一共展示了Bytecode.setMaxLocals方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: insertAfterAdvice

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
private int insertAfterAdvice(Bytecode code, Javac jv, String src,
                              ConstPool cp, CtClass rtype, int varNo)
    throws CompileError
{
    int pc = code.currentPc();
    if (rtype == CtClass.voidType) {
        code.addOpcode(Opcode.ACONST_NULL);
        code.addAstore(varNo);
        jv.compileStmnt(src);
        code.addOpcode(Opcode.RETURN);
        if (code.getMaxLocals() < 1)
            code.setMaxLocals(1);
    }
    else {
        code.addStore(varNo, rtype);
        jv.compileStmnt(src);
        code.addLoad(varNo, rtype);
        if (rtype.isPrimitive())
            code.addOpcode(((CtPrimitiveType)rtype).getReturnOp());
        else
            code.addOpcode(Opcode.ARETURN);
    }

    return code.currentPc() - pc;
}
开发者ID:scouter-project，项目名称:scouter，代码行数:26，代码来源:CtBehavior.java

示例2: makeDelegator

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
private MethodInfo makeDelegator(Method meth, String desc,
            ConstPool cp, Class declClass, String delegatorName) {
    MethodInfo delegator = new MethodInfo(cp, delegatorName, desc);
    delegator.setAccessFlags(Modifier.FINAL | Modifier.PUBLIC
            | (meth.getModifiers() & ~(Modifier.PRIVATE
                                       | Modifier.PROTECTED
                                       | Modifier.ABSTRACT
                                       | Modifier.NATIVE
                                       | Modifier.SYNCHRONIZED)));
    setThrows(delegator, cp, meth);
    Bytecode code = new Bytecode(cp, 0, 0);
    code.addAload(0);
    int s = addLoadParameters(code, meth.getParameterTypes(), 1);
    Class targetClass = invokespecialTarget(declClass);
    code.addInvokespecial(targetClass.isInterface(), cp.addClassInfo(targetClass.getName()),
                          meth.getName(), desc);
    addReturn(code, meth.getReturnType());
    code.setMaxLocals(++s);
    delegator.setCodeAttribute(code.toCodeAttribute());
    return delegator;
}
开发者ID:scouter-project，项目名称:scouter，代码行数:22，代码来源:ProxyFactory.java

示例3: makeBody

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
static Bytecode makeBody(CtClass clazz, ClassFile classfile,
                         CtMethod wrappedBody,
                         CtClass[] parameters,
                         CtClass returnType,
                         ConstParameter cparam)
    throws CannotCompileException
{
    boolean isStatic = Modifier.isStatic(wrappedBody.getModifiers());
    Bytecode code = new Bytecode(classfile.getConstPool(), 0, 0);
    int stacksize = makeBody0(clazz, classfile, wrappedBody, isStatic,
                              parameters, returnType, cparam, code);
    code.setMaxStack(stacksize);
    code.setMaxLocals(isStatic, parameters, 0);
    return code;
}
开发者ID:scouter-project，项目名称:scouter，代码行数:16，代码来源:CtNewWrappedMethod.java

示例4: delegator0

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
private static CtMethod delegator0(CtMethod delegate, CtClass declaring)
    throws CannotCompileException, NotFoundException
{
    MethodInfo deleInfo = delegate.getMethodInfo2();
    String methodName = deleInfo.getName();
    String desc = deleInfo.getDescriptor();
    ConstPool cp = declaring.getClassFile2().getConstPool();
    MethodInfo minfo = new MethodInfo(cp, methodName, desc);
    minfo.setAccessFlags(deleInfo.getAccessFlags());

    ExceptionsAttribute eattr = deleInfo.getExceptionsAttribute();
    if (eattr != null)
        minfo.setExceptionsAttribute(
                            (ExceptionsAttribute)eattr.copy(cp, null));

    Bytecode code = new Bytecode(cp, 0, 0);
    boolean isStatic = Modifier.isStatic(delegate.getModifiers());
    CtClass deleClass = delegate.getDeclaringClass();
    CtClass[] params = delegate.getParameterTypes();
    int s;
    if (isStatic) {
        s = code.addLoadParameters(params, 0);
        code.addInvokestatic(deleClass, methodName, desc);
    }
    else {
        code.addLoad(0, deleClass);
        s = code.addLoadParameters(params, 1);
        code.addInvokespecial(deleClass, methodName, desc);
    }

    code.addReturn(delegate.getReturnType());
    code.setMaxLocals(++s);
    code.setMaxStack(s < 2 ? 2 : s); // for a 2-word return value
    minfo.setCodeAttribute(code.toCodeAttribute());
    // a stack map is not needed. 
    return new CtMethod(minfo, declaring);
}
开发者ID:scouter-project，项目名称:scouter，代码行数:38，代码来源:CtNewMethod.java

示例5: makeConstructor

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
private static MethodInfo makeConstructor(String thisClassName, Constructor cons,
                                          ConstPool cp, Class superClass, boolean doHandlerInit) {
    String desc = RuntimeSupport.makeDescriptor(cons.getParameterTypes(),
                                                Void.TYPE);
    MethodInfo minfo = new MethodInfo(cp, "<init>", desc);
    minfo.setAccessFlags(Modifier.PUBLIC);      // cons.getModifiers() & ~Modifier.NATIVE
    setThrows(minfo, cp, cons.getExceptionTypes());
    Bytecode code = new Bytecode(cp, 0, 0);

    // legacy: if we are not using caching then we initialise the instance's handler
    // from the class's static default interceptor and skip the next few instructions if
    // it is non-null
    if (doHandlerInit) {
        code.addAload(0);
        code.addGetstatic(thisClassName, DEFAULT_INTERCEPTOR, HANDLER_TYPE);
        code.addPutfield(thisClassName, HANDLER, HANDLER_TYPE);
        code.addGetstatic(thisClassName, DEFAULT_INTERCEPTOR, HANDLER_TYPE);
        code.addOpcode(Opcode.IFNONNULL);
        code.addIndex(10);
    }
    // if caching is enabled then we don't have a handler to initialise so this else branch will install
    // the handler located in the static field of class RuntimeSupport.
    code.addAload(0);
    code.addGetstatic(NULL_INTERCEPTOR_HOLDER, DEFAULT_INTERCEPTOR, HANDLER_TYPE);
    code.addPutfield(thisClassName, HANDLER, HANDLER_TYPE);
    int pc = code.currentPc();

    code.addAload(0);
    int s = addLoadParameters(code, cons.getParameterTypes(), 1);
    code.addInvokespecial(superClass.getName(), "<init>", desc);
    code.addOpcode(Opcode.RETURN);
    code.setMaxLocals(s + 1);
    CodeAttribute ca = code.toCodeAttribute();
    minfo.setCodeAttribute(ca);

    StackMapTable.Writer writer = new StackMapTable.Writer(32);
    writer.sameFrame(pc);
    ca.setAttribute(writer.toStackMapTable(cp));
    return minfo;
}
开发者ID:scouter-project，项目名称:scouter，代码行数:41，代码来源:ProxyFactory.java

示例6: makeBody

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
protected static Bytecode makeBody(CtClass declaring, ClassFile classfile,
                                   int howToCallSuper,
                                   CtMethod wrappedBody,
                                   CtClass[] parameters,
                                   ConstParameter cparam)
    throws CannotCompileException
{
    int stacksize, stacksize2;

    int superclazz = classfile.getSuperclassId();
    Bytecode code = new Bytecode(classfile.getConstPool(), 0, 0);
    code.setMaxLocals(false, parameters, 0);
    code.addAload(0);
    if (howToCallSuper == PASS_NONE) {
        stacksize = 1;
        code.addInvokespecial(superclazz, "<init>", "()V");
    }
    else if (howToCallSuper == PASS_PARAMS) {
        stacksize = code.addLoadParameters(parameters, 1) + 1;
        code.addInvokespecial(superclazz, "<init>",
                              Descriptor.ofConstructor(parameters));
    }
    else {
        stacksize = compileParameterList(code, parameters, 1);
        String desc;
        if (cparam == null) {
            stacksize2 = 2;
            desc = ConstParameter.defaultConstDescriptor();
        }
        else {
            stacksize2 = cparam.compile(code) + 2;
            desc = cparam.constDescriptor();
        }

        if (stacksize < stacksize2)
            stacksize = stacksize2;

        code.addInvokespecial(superclazz, "<init>", desc);
    }

    if (wrappedBody == null)
        code.add(Bytecode.RETURN);
    else {
        stacksize2 = makeBody0(declaring, classfile, wrappedBody,
                               false, parameters, CtClass.voidType,
                               cparam, code);
        if (stacksize < stacksize2)
            stacksize = stacksize2;
    }

    code.setMaxStack(stacksize);
    return code;
}
开发者ID:scouter-project，项目名称:bytescope，代码行数:54，代码来源:CtNewWrappedConstructor.java

示例7: makeBody

import scouter.javassist.bytecode.Bytecode; //导入方法依赖的package包/类
protected static Bytecode makeBody(CtClass declaring, ClassFile classfile,
                                   int howToCallSuper,
                                   CtMethod wrappedBody,
                                   CtClass[] parameters,
                                   CtMethod.ConstParameter cparam)
    throws CannotCompileException
{
    int stacksize, stacksize2;

    int superclazz = classfile.getSuperclassId();
    Bytecode code = new Bytecode(classfile.getConstPool(), 0, 0);
    code.setMaxLocals(false, parameters, 0);
    code.addAload(0);
    if (howToCallSuper == PASS_NONE) {
        stacksize = 1;
        code.addInvokespecial(superclazz, "<init>", "()V");
    }
    else if (howToCallSuper == PASS_PARAMS) {
        stacksize = code.addLoadParameters(parameters, 1) + 1;
        code.addInvokespecial(superclazz, "<init>",
                              Descriptor.ofConstructor(parameters));
    }
    else {
        stacksize = compileParameterList(code, parameters, 1);
        String desc;
        if (cparam == null) {
            stacksize2 = 2;
            desc = CtMethod.ConstParameter.defaultConstDescriptor();
        }
        else {
            stacksize2 = cparam.compile(code) + 2;
            desc = cparam.constDescriptor();
        }

        if (stacksize < stacksize2)
            stacksize = stacksize2;

        code.addInvokespecial(superclazz, "<init>", desc);
    }

    if (wrappedBody == null)
        code.add(Bytecode.RETURN);
    else {
        stacksize2 = makeBody0(declaring, classfile, wrappedBody,
                               false, parameters, CtClass.voidType,
                               cparam, code);
        if (stacksize < stacksize2)
            stacksize = stacksize2;
    }

    code.setMaxStack(stacksize);
    return code;
}
开发者ID:scouter-project，项目名称:scouter，代码行数:54，代码来源:CtNewWrappedConstructor.java


注：本文中的scouter.javassist.bytecode.Bytecode.setMaxLocals方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。