fix insertion and add assign send

must implement send conversion before this makes sense

lib/risc/method_compiler.rb

@@ -93,11 +93,12 @@ module Risc
     # continue down the instruction chain unti depleted
     # (adding moves the insertion point so the whole mom chain is added as a risc chain)
     def add_mom( instruction )
-      raise "whats this a #{instruction}" unless instruction.is_a?(Mom::Instruction)
       while( instruction )
-        #puts "adding #{instruction.to_s}:#{instruction.next.to_s}"
+        raise "whats this a #{instruction}" unless instruction.is_a?(Mom::Instruction)
+        #puts "adding mom #{instruction.to_s}:#{instruction.next.to_s}"
         risc = instruction.to_risc( self )
         add_code(risc)
+        #puts "adding risc #{risc.to_s}:#{risc.next.to_s}"
         instruction = instruction.next
       end
     end
@@ -106,8 +107,9 @@ module Risc
     def add_code( instruction )
       raise "Not an instruction:#{instruction.to_s}" unless  instruction.is_a?(Risc::Instruction)
       raise instruction.to_s if( instruction.class.name.split("::").first == "Arm")
+      new_current = instruction.last #after insertion this point is lost
       @current.insert(instruction) #insert after current
-      @current = instruction.last
+      @current = new_current
       self
     end
 

test/mom/test_assign_local_const.rb

@@ -1,7 +1,7 @@
 require_relative 'helper'
 
 module Risc
-  class TestLocalAssign < MiniTest::Test
+  class TestAssignLocalConst < MiniTest::Test
     include Statements
 
     def setup

test/mom/test_assign_local_send.rb

@@ -0,0 +1,28 @@
+require_relative 'helper'
+
+module Risc
+  class TestAssignLocalSend < MiniTest::Test
+    include Statements
+
+    def setup
+      super
+      @input = "r = 5.mod4"
+      @expect = [Label, LoadConstant, RegToSlot, Label, Label, SlotToReg ,
+                 RegToSlot]
+    end
+    def test_local_assign_instructions
+      assert_nil msg = check_nil , msg
+    end
+
+    def ttest_constant_load
+      produced = produce_body
+      assert_equal 5 , produced.constant.known_object.value
+    end
+
+    def ttest_slot_move
+      produced = produce_body
+      assert_equal produced.next.register , produced.register
+    end
+
+  end
+end