public void addProxy() throws Exception {
// implement PyProxy interface
classfile.addField("__proxy", $pyObj, Modifier.PROTECTED);
// setProxy methods
Code code = classfile.addMethod("_setPyInstance", makeSig("V", $pyObj), Modifier.PUBLIC);
code.aload(0);
code.aload(1);
code.putfield(classfile.name, "__proxy", $pyObj);
code.return_();
// getProxy method
code = classfile.addMethod("_getPyInstance", makeSig($pyObj), Modifier.PUBLIC);
code.aload(0);
code.getfield(classfile.name, "__proxy", $pyObj);
code.areturn();
String pySys = "Lorg/python/core/PySystemState;";
// implement PyProxy interface
classfile.addField("__systemState", pySys, Modifier.PROTECTED | Modifier.TRANSIENT);
// setProxy method
code = classfile.addMethod("_setPySystemState", makeSig("V", pySys), Modifier.PUBLIC);
code.aload(0);
code.aload(1);
code.putfield(classfile.name, "__systemState", pySys);
code.return_();
// getProxy method
code = classfile.addMethod("_getPySystemState", makeSig(pySys), Modifier.PUBLIC);
code.aload(0);
code.getfield(classfile.name, "__systemState", pySys);
code.areturn();
}
public static void doNullReturn(Code code, Class<?> type) throws Exception {
switch (getType(type)) {
case tNone:
break;
case tCharacter:
case tBoolean:
case tByte:
case tShort:
case tInteger:
code.iconst_0();
code.ireturn();
break;
case tLong:
code.lconst_0();
code.lreturn();
break;
case tFloat:
code.fconst_0();
code.freturn();
break;
case tDouble:
code.dconst_0();
code.dreturn();
break;
case tVoid:
code.return_();
break;
default:
code.aconst_null();
code.areturn();
break;
}
}