add status view and fixes

app/block_view.rb

@@ -1,5 +1,4 @@
 
-require "source_view"
 require "instruction_view"
 
 class BlockView
@@ -16,6 +15,7 @@ class BlockView
   end
 
   def update_block
+    return unless interpreter.instruction
     block_name! interpreter.block.name
     codes = interpreter.block.codes.dup
     slice = codes.index(interpreter.instruction) #- 1
@@ -32,12 +32,18 @@ class BlockView
     return unless block
     div.block_view do
       div do
+        h4 { method_name}
         h4 {"Block: #{block_name}"}
-        button.btn.btn_default { "next" }.on(:click) { interpreter.tick }
       end
       block.each do |code|
         InstructionView  :interpreter => interpreter , :instruction => code
       end
     end
   end
+
+  def method_name
+    bl = interpreter.block
+    return bl.method if bl.method.is_a? String
+    "#{bl.method.for_class.name}.#{bl.method.name}"
+  end
 end

app/debugger.rb

@@ -3,6 +3,7 @@ require "register_view"
 require "class_view"
 require "source_view"
 require "block_view"
+require "status_view"
 
 class Debugger
 
@@ -24,6 +25,7 @@ class Debugger
       end
       SourceView  :interpreter => interpreter
       BlockView :interpreter => interpreter
+      StatusView :interpreter => interpreter
       div.registers_view do
         interpreter.registers.each do |r , oid|
           RegisterView interpreter: interpreter , register: r

app/source_view.rb

@@ -12,7 +12,7 @@ class SourceView
   end
 
   def instruction_changed old , ins
-    text = source_text(ins.source)
+    text = ins ? source_text(ins.source) : "exit"
     return if sources.last == text
     sources << text
     sources.shift if sources.length > 5

app/status_view.rb

@@ -0,0 +1,41 @@
+
+class StatusView
+
+  include React::Component
+  required_param :interpreter
+
+  define_state :state => "starting"
+  define_state :stdout
+
+  before_mount do
+    interpreter.register_event(:instruction_changed,  self)
+  end
+
+  def update_state
+    state! interpreter.state
+    stdout! interpreter.stdout
+  end
+
+  def instruction_changed old , nex
+    update_state
+  end
+
+  def render
+    div.status_view do
+      div do
+        button.btn.btn_default { "next" }.on(:click) { interpreter.tick }
+        " ".br
+      end
+      div do
+        h4 {"Status:"}
+        state.to_s.br
+      end
+      div do
+        h4 {"Stdout:"}
+      end
+      div do
+        interpreter.stdout.br
+      end
+    end
+  end
+end

lib/interpreter.rb

@@ -20,7 +20,10 @@ class Interpreter
   # collect the output
   attr_reader :stdout
 
+  attr_reader :state
+
   def initialize
+    @state = "runnnig"
     @stdout = ""
     @registers = {}
     (0...12).each do |r|
@@ -42,8 +45,8 @@ class Interpreter
   end
 
   def set_instruction i
+    @state = "exited" unless i
     return if @instruction == i
-    raise "Error, nil instruction" unless i
     old = @instruction
     @instruction = i
     trigger(:instruction_changed, old , i)
@@ -142,7 +145,7 @@ class Interpreter
       raise "NO string for putstring #{str}" unless str.is_a? Symbol
       @stdout += str.to_s
     when :exit
-      @instruction = nil
+      set_instruction(nil)
       return false
     else
       raise "un-implemented syscall #{name}"