lib/nydp/runner.rb in nydp-0.0.5 vs lib/nydp/runner.rb in nydp-0.0.6

@@ -46,9 +46,11 @@
       @quote      = Symbol.mk(:quote, ns)
     end
 
     def compile_and_eval expr
       vm.thread Pair.new(Compiler.compile(expr, Nydp.NIL), Nydp.NIL)
+    rescue Exception => e
+      raise "failed to eval #{expr.inspect},\nerror was #{e.message}\nvm state is #{vm.error}"
     end
 
     def quote expr
       Pair.from_list [@quote, expr]
     end