Class: Rexpl::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/rexpl/environment.rb

Overview

This class represents the Environment holding a GeneratorProxy instance exposing the main entry point as a class method.

Constant Summary collapse

@@generator = 
GeneratorProxy.new

Class Method Summary collapse

Class Method Details

.run ⇒ Object

Fires up the REPL. This is the program’s main entry point.



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# File 'lib/rexpl/environment.rb', line 10

def run
  Output.print_banner

  while (Output.print_prompt; input = gets)
    @@generator.instance_eval input.chomp

    # After each new instruction, evaluate all of them.
    dynamic_method(:run) do |g|
      @@generator.visit(g)
      if g.size == 0
        g.push_nil
      else
        g.print_debug_info
      end
      g.ret
    end
    new.run
  end
end