import org.objectweb.asm.attrs.StackMapFrame; //导入依赖的package包/类
public void trace(StringBuffer buf, Map labelNames) {
    List frames = getFrames();
    buf.append("[\n");
    for (int i = 0; i < frames.size(); i++) {
        StackMapFrame f = (StackMapFrame) frames.get(i);

        buf.append("    Frame:");
        appendLabel(buf, labelNames, f.label);

        buf.append(" locals[");
        traceTypeInfo(buf, labelNames, f.locals);
        buf.append("]");
        buf.append(" stack[");
        traceTypeInfo(buf, labelNames, f.stack);
        buf.append("]\n");
    }
    buf.append("  ] length:").append(len).append("\n");
}
 

import org.objectweb.asm.attrs.StackMapFrame; //导入依赖的package包/类
void asmify(
    StackMapFrame f,
    StringBuffer buf,
    String varName,
    Map labelNames)
{
    declareLabel(buf, labelNames, f.label);
    buf.append("{\n");

    buf.append("StackMapFrame ")
            .append(varName)
            .append(" = new StackMapFrame();\n");

    buf.append(varName)
            .append(".label = ")
            .append(labelNames.get(f.label))
            .append(";\n");

    asmifyTypeInfo(buf, varName, labelNames, f.locals, "locals");
    asmifyTypeInfo(buf, varName, labelNames, f.stack, "stack");

    buf.append("cvAttr.frames.add(").append(varName).append(");\n");
    buf.append("}\n");
}
 

import org.objectweb.asm.attrs.StackMapFrame; //导入依赖的package包/类
public void asmify(StringBuffer buf, String varName, Map labelNames) {
    List frames = getFrames();
    if (frames.size() == 0) {
        buf.append("List frames = Collections.EMPTY_LIST;\n");
    } else {
        buf.append("List frames = new ArrayList();\n");
        for (int i = 0; i < frames.size(); i++) {
            buf.append("{\n");
            StackMapFrame f = (StackMapFrame) frames.get(i);
            declareLabel(buf, labelNames, f.label);

            String frameVar = varName + "frame" + i;
            asmifyTypeInfo(buf, frameVar, labelNames, f.locals, "locals");
            asmifyTypeInfo(buf, frameVar, labelNames, f.stack, "stack");

            buf.append("StackMapFrame ")
                    .append(frameVar)
                    .append(" = new StackMapFrame(")
                    .append(labelNames.get(f.label))
                    .append(", locals, stack);\n");
            buf.append("frames.add(").append(frameVar).append(");\n");
            buf.append("}\n");
        }
    }
    buf.append("StackMapTableAttribute ").append(varName);
    buf.append(" = new StackMapTableAttribute(frames);\n");
}