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

@@ -1,7 +1,22 @@
 require 'nydp'
 
 module Nydp::Builtin
+  module Base
+    def indent_text txt
+      txt.split(/\n/).map { |line| "  #{line}"}.join("\n")
+    end
+
+    def invoke vm, args
+      builtin_invoke vm, args
+    rescue Exception => e
+      new_msg = "Invoking #{self.class.name}\nwith args #{args}\nraised\n#{indent_text e.message}"
+      raise $!, new_msg, $!.backtrace
+    end
+  end
+
+  def inspect ; self.class.name ; end
+  def to_s    ; self.class.name ; end
 end
 
 Dir[File.join(File.dirname(__FILE__), "builtin", "**/*.rb")].each {|f|
   require f
 }