public void defaultVariablesUnmarshal(IRubyObject object) throws IOException {
int count = unmarshalInt();
RubyClass cls = object.getMetaClass().getRealClass();
for (int i = 0; i < count; i++) {
IRubyObject key = unmarshalObject(false);
if (i == 0) { // first ivar provides encoding
if (object instanceof EncodingCapable) {
EncodingCapable strObj = (EncodingCapable) object;
if (key.asJavaString().equals(MarshalStream.SYMBOL_ENCODING_SPECIAL)) {
// special case for USASCII and UTF8
if (unmarshalObject().isTrue()) {
strObj.setEncoding(UTF8Encoding.INSTANCE);
} else {
strObj.setEncoding(USASCIIEncoding.INSTANCE);
}
continue;
} else if (key.asJavaString().equals("encoding")) {
IRubyObject encodingNameObj = unmarshalObject(false);
String encodingNameStr = encodingNameObj.asJavaString();
ByteList encodingName = new ByteList(ByteList.plain(encodingNameStr));
Entry entry = runtime.getEncodingService().findEncodingOrAliasEntry(encodingName);
if (entry == null) {
throw runtime.newArgumentError(
"invalid encoding in marshaling stream: " + encodingName);
}
Encoding encoding = entry.getEncoding();
strObj.setEncoding(encoding);
continue;
} // else fall through as normal ivar
}
}
String name = key.asJavaString();
IRubyObject value = unmarshalObject();
cls.getVariableAccessorForWrite(name).set(object, value);
}
}
public IRubyObject getDefaultExternal() {
IRubyObject defaultExternal =
convertEncodingToRubyEncoding(runtime.getDefaultExternalEncoding());
if (defaultExternal.isNil()) {
// TODO: MRI seems to default blindly to US-ASCII and we were using Charset default from
// Java...which is right?
ByteList encodingName = ByteList.create("US-ASCII");
Encoding encoding = runtime.getEncodingService().loadEncoding(encodingName);
runtime.setDefaultExternalEncoding(encoding);
defaultExternal = convertEncodingToRubyEncoding(encoding);
}
return defaultExternal;
}
public Encoding toEncoding(Ruby runtime) {
EncodingService service = runtime.getEncodingService();
switch (this) {
case LOCALE:
return service.getLocaleEncoding();
case EXTERNAL:
return runtime.getDefaultExternalEncoding();
case INTERNAL:
return runtime.getDefaultInternalEncoding();
case FILESYSTEM:
// This needs to do something different on Windows. See encoding.c,
// in the enc_set_filesystem_encoding function.
return runtime.getDefaultExternalEncoding();
default:
throw new RuntimeException("invalid SpecialEncoding: " + this);
}
}