public TryNode(
RubyContext context,
SourceSection sourceSection,
ExceptionTranslatingNode tryPart,
RescueNode[] rescueParts,
RubyNode elsePart) {
super(context, sourceSection);
this.tryPart = tryPart;
this.rescueParts = rescueParts;
this.elsePart = elsePart;
clearExceptionVariableNode =
new WriteInstanceVariableNode(
context,
sourceSection,
"$!",
new ObjectLiteralNode(
context, sourceSection, context.getCoreLibrary().getGlobalVariablesObject()),
new ObjectLiteralNode(context, sourceSection, context.getCoreLibrary().getNilObject()),
true);
}
public static RubyNode sequence(
RubyContext context, SourceSection sourceSection, List<RubyNode> sequence) {
final List<RubyNode> flattened = flatten(sequence, true);
if (flattened.isEmpty()) {
return new ObjectLiteralNode(context, sourceSection, context.getCoreLibrary().getNilObject());
} else if (flattened.size() == 1) {
return flattened.get(0);
} else {
return new SequenceNode(
context, sourceSection, flattened.toArray(new RubyNode[flattened.size()]));
}
}
private Object handleException(VirtualFrame frame, RuntimeException exception) {
CompilerAsserts.neverPartOfCompilation();
final RubyContext context = getContext();
final RubyBasicObject rubyException =
ExceptionTranslator.translateException(context, exception);
context.getCoreLibrary().getGlobalVariablesObject().setInstanceVariable("$!", rubyException);
for (RescueNode rescue : rescueParts) {
if (rescue.canHandle(frame, rubyException)) {
return rescue.execute(frame);
}
}
throw exception;
}