@RubyLevelMethod(name = "trace_var", module = true)
public static RubyValue trace_var(RubyValue receiver, RubyArray args, RubyBlock block) {
if (null == args || args.size() < 1) {
int actual_argc = (null == args) ? 0 : args.size();
throw new RubyException(
RubyRuntime.ArgumentErrorClass,
"in `trace_var': wrong number of arguments (" + actual_argc + " for 1)");
}
if (!(args.get(0) instanceof RubySymbol)) {
throw new RubyException(
RubyRuntime.ArgumentErrorClass, args.get(0).toString() + " is not a symbol");
}
String name = ((RubySymbol) args.get(0)).toString();
RubyValue v = args.get(1);
if (v instanceof RubyProc) {
GlobalVariables.addTraceProc(name, (RubyProc) v);
} else if (null != block) {
GlobalVariables.addTraceProc(name, ObjectFactory.createProc(block));
} else {
throw new RubyException(
RubyRuntime.ArgumentErrorClass, "tried to create Proc object without a block");
}
return RubyConstant.QNIL;
}
@RubyLevelMethod(name = "at_exit", module = true)
public static RubyValue atExit(RubyValue receiver, RubyBlock block) {
if (null == block) {
throw new RubyException(RubyRuntime.ArgumentErrorClass, "called without a block");
}
AtExitBlocks.registerBlock(block);
return ObjectFactory.createProc(block);
}
@RubyLevelMethod(name = "lambda", alias = "proc", module = true)
public static RubyValue lambda(RubyValue receiver, RubyBlock block) {
block.setCreatedByLambda();
return ObjectFactory.createProc(block);
}