public override void SetValue(RubyContext /*!*/ context, RubyScope scope, string /*!*/ name, object value)
{
switch (_id)
{
// regex:
case GlobalVariableId.MatchData:
if (scope == null)
{
throw ReadOnlyError(name);
}
scope.GetInnerMostClosureScope().CurrentMatch = (value != null) ? RequireType <MatchData>(value, name, "MatchData") : null;
return;
case GlobalVariableId.MatchLastGroup:
case GlobalVariableId.MatchPrefix:
case GlobalVariableId.MatchSuffix:
case GlobalVariableId.EntireMatch:
throw ReadOnlyError(name);
// exceptions:
case GlobalVariableId.CurrentException:
context.SetCurrentException(value);
return;
case GlobalVariableId.CurrentExceptionBacktrace:
context.SetCurrentExceptionBacktrace(value);
return;
// input:
case GlobalVariableId.LastInputLine:
if (scope == null)
{
throw ReadOnlyError(name);
}
scope.GetInnerMostClosureScope().LastInputLine = value;
return;
case GlobalVariableId.LastInputLineNumber:
context.InputProvider.LastInputLineNumber = RequireType <int>(value, name, "Fixnum");
return;
case GlobalVariableId.CommandLineArguments:
case GlobalVariableId.InputFileName:
throw ReadOnlyError(name);
// output:
case GlobalVariableId.OutputStream:
context.StandardOutput = RequireWriteProtocol(context, value, name);
return;
case GlobalVariableId.ErrorOutputStream:
context.StandardErrorOutput = RequireWriteProtocol(context, value, name);
break;
case GlobalVariableId.InputStream:
context.StandardInput = value;
return;
// separators:
case GlobalVariableId.InputContent:
throw ReadOnlyError(name);
case GlobalVariableId.InputSeparator:
context.InputSeparator = (value != null) ? RequireType <MutableString>(value, name, "String") : null;
return;
case GlobalVariableId.OutputSeparator:
context.OutputSeparator = (value != null) ? RequireType <MutableString>(value, name, "String") : null;
return;
case GlobalVariableId.StringSeparator:
// type not enforced:
context.StringSeparator = value;
return;
case GlobalVariableId.ItemSeparator:
context.ItemSeparator = (value != null) ? RequireType <MutableString>(value, name, "String") : null;
return;
// loader:
case GlobalVariableId.LoadedFiles:
case GlobalVariableId.LoadPath:
throw ReadOnlyError(name);
// misc:
case GlobalVariableId.SafeLevel:
context.SetSafeLevel(RequireType <int>(value, name, "Fixnum"));
return;
case GlobalVariableId.Verbose:
context.Verbose = value;
return;
case GlobalVariableId.KCode:
// MRI calls to_str; we don't do that, it's inconsistent with other globals.
// If some app depends on this behavior, it will fail gracefully:
context.SetKCode((value != null) ? RequireType <MutableString>(value, name, "String") : null);
return;
case GlobalVariableId.ChildProcessExitStatus:
throw ReadOnlyError(name);
default:
throw Assert.Unreachable;
}
}