Fixing tests for implicit return

previous commit affected rather many test, as the implicit returns add extra instructions
Also added some explicit returns, so as not to test the return logic too much. return (ie return nl) is a knonwn 3 risc operation.

lib/parfait/object.rb

@@ -73,7 +73,7 @@
     def self.padded( len )
       a = 32 * (1 + ((len + 3)/32).floor )
       #puts "#{a} for #{len}"
-      a
+      return a
     end
 
     def self.padded_words( words )

test/mom/assign/test_assign_arg_const.rb

@@ -6,8 +6,8 @@ module Risc
 
     def setup
       super
-      @input = "arg = 5"
-      @expect = [LoadConstant, SlotToReg, RegToSlot]
+      @input = "arg = 5;return"
+      @expect = [LoadConstant, SlotToReg, RegToSlot, LoadConstant, RegToSlot, Branch]
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/assign/test_assign_ivar_const.rb

@@ -6,8 +6,8 @@ module Risc
 
     def setup
       super
-      @input = "@ivar = 5"
-      @expect = [LoadConstant, SlotToReg, RegToSlot]
+      @input = "@ivar = 5;return"
+      @expect = [LoadConstant, SlotToReg, RegToSlot, LoadConstant, RegToSlot, Branch]
     end
 
     def test_local_assign_instructions

test/mom/assign/test_assign_local_arg.rb

@@ -6,8 +6,9 @@ module Risc
 
     def setup
       super
-      @input = "local = arg"
-      @expect = [SlotToReg, SlotToReg, SlotToReg, RegToSlot]
+      @input = "local = arg; return local"
+      @expect =  [SlotToReg, SlotToReg, SlotToReg, RegToSlot, SlotToReg, #4
+                 SlotToReg, RegToSlot, Branch] #9
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/assign/test_assign_local_false.rb

@@ -6,8 +6,8 @@ module Risc
 
     def setup
       super
-      @input = "r = false"
-      @expect = [LoadConstant,SlotToReg, RegToSlot]
+      @input = "r = false;return"
+      @expect = [LoadConstant,SlotToReg, RegToSlot,LoadConstant, RegToSlot, Branch]
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/assign/test_assign_local_int.rb

@@ -6,8 +6,8 @@ module Risc
 
     def setup
       super
-      @input = "r = 5"
-      @expect = [LoadConstant,SlotToReg, RegToSlot]
+      @input = "r = 5;return"
+      @expect = [LoadConstant,SlotToReg, RegToSlot, LoadConstant, RegToSlot, Branch]
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/assign/test_assign_local_ivar.rb

@@ -6,9 +6,9 @@ module Risc
 
     def setup
       super
-      @input = "@ivar = 5 ; r = @ivar"
+      @input = "@ivar = 5 ; r = @ivar;return"
       @expect = [LoadConstant, SlotToReg, RegToSlot, SlotToReg, SlotToReg, SlotToReg ,
-                 RegToSlot]
+                 RegToSlot, LoadConstant, RegToSlot, Branch]
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/assign/test_assign_local_send.rb

@@ -6,11 +6,12 @@ module Risc
 
     def setup
       super
-      @input = "r = 5.div4"
+      @input = "r = 5.div4;return"
       @expect = [LoadConstant, LoadConstant, SlotToReg, SlotToReg, RegToSlot,
                  RegToSlot, RegToSlot, RegToSlot, LoadConstant, SlotToReg,
                  RegToSlot, LoadConstant, SlotToReg, RegToSlot, SlotToReg,
-                 FunctionCall, Label, SlotToReg, SlotToReg, RegToSlot]
+                 FunctionCall, Label, SlotToReg, SlotToReg, RegToSlot,
+                 LoadConstant, RegToSlot, Branch]
     end
     def test_local_assign_instructions
       assert_nil msg = check_nil , msg

test/mom/blocks/test_block_setup.rb

@@ -12,7 +12,7 @@ module Risc
                  RegToSlot, RegToSlot, RegToSlot, RegToSlot, SlotToReg, #14
                  SlotToReg, RegToSlot, SlotToReg, SlotToReg, SlotToReg, #19
                  SlotToReg, RegToSlot, LoadConstant, SlotToReg, RegToSlot, #24
-                 SlotToReg, FunctionCall, Label]
+                 SlotToReg, FunctionCall, Label] #29
     end
 
     def test_send_instructions

test/mom/send/test_send_dynamic.rb

@@ -18,7 +18,7 @@ module Risc
                  SlotToReg, SlotToReg, RegToSlot, RegToSlot, RegToSlot, #44
                  RegToSlot, SlotToReg, SlotToReg, SlotToReg, RegToSlot, #49
                  LoadConstant, SlotToReg, RegToSlot, SlotToReg, LoadConstant, #54
-                 SlotToReg, DynamicJump, Label]
+                 SlotToReg, DynamicJump, Label, SlotToReg, RegToSlot, Branch]
     end
 
     def test_send_instructions

test/mom/send/test_send_simple.rb

@@ -10,7 +10,7 @@ module Risc
       @expect = [LoadConstant, LoadConstant, SlotToReg, SlotToReg, RegToSlot,
                  RegToSlot, RegToSlot, RegToSlot, LoadConstant, SlotToReg,
                  RegToSlot, LoadConstant, SlotToReg, RegToSlot, SlotToReg,
-                 FunctionCall, Label]
+                 FunctionCall, Label, SlotToReg, RegToSlot, Branch]
     end
 
     def test_send_instructions

test/mom/send/test_send_simple_args.rb

@@ -11,7 +11,7 @@ module Risc
                  RegToSlot, RegToSlot, RegToSlot, LoadConstant, SlotToReg,
                  RegToSlot, LoadConstant, SlotToReg, SlotToReg, RegToSlot,
                  LoadConstant, SlotToReg, RegToSlot, SlotToReg, FunctionCall,
-                 Label]
+                 Label, SlotToReg, RegToSlot, Branch]
     end
 
     def test_send_instructions

test/mom/send/test_setup_simple.rb

@@ -6,11 +6,11 @@ module Risc
 
     def setup
       super
-      @input = "5.div4"
+      @input = "return 5.div4"
       @expect = [LoadConstant, LoadConstant, SlotToReg, SlotToReg, RegToSlot,
                  RegToSlot, RegToSlot, RegToSlot, LoadConstant, SlotToReg,
                  RegToSlot, LoadConstant, SlotToReg, RegToSlot, SlotToReg,
-                 FunctionCall, Label]
+                 FunctionCall, Label, SlotToReg, RegToSlot, Branch]
       @produced = produce_body
     end
 
@@ -51,7 +51,7 @@ module Risc
       assert_reg_to_slot( sl , :r1  ,  :r3 ,  7 )
     end
     def test_label
-      sl = @produced.next( 17 )
+      sl = @produced.next( 20 )
       assert_equal Risc::Label , sl.class
       assert_equal "return_label" , sl.name
     end

test/mom/test_if_else.rb

@@ -6,11 +6,12 @@ module Risc
 
     def setup
       super
-      @input = "if(@a) ; arg = 5 ; else; arg = 6; end"
+      @input = "if(@a) ; arg = 5 ; else; arg = 6; end;return"
       @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsZero,
                  LoadConstant, OperatorInstruction, IsZero, Label, LoadConstant,
                  SlotToReg, RegToSlot, Branch, Label, LoadConstant,
-                 SlotToReg, RegToSlot, Label]
+                 SlotToReg, RegToSlot, Label, LoadConstant, #34
+                 RegToSlot, Branch]
     end
 
     def test_if_instructions

test/mom/test_if_no_else.rb

@@ -6,10 +6,11 @@ module Risc
 
     def setup
       super
-      @input = "if(@a) ; arg = 5 ; end"
+      @input = "if(@a) ; arg = 5 ; end;return"
       @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsZero,
                  LoadConstant, OperatorInstruction, IsZero, Label, LoadConstant,
-                 SlotToReg, RegToSlot, Label]
+                 SlotToReg, RegToSlot, Label, LoadConstant, #34
+                 RegToSlot, Branch]
     end
 
     def test_if_instructions

test/mom/test_if_no_if.rb

@@ -6,10 +6,11 @@ module Risc
 
     def setup
       super
-      @input = "unless(@a) ; arg = 5 ; end"
+      @input = "unless(@a) ; arg = 5 ; end;return"
       @expect = [SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, IsZero, #4
                  LoadConstant, OperatorInstruction, IsZero, Label, Branch, #9
-                 Label, LoadConstant, SlotToReg, RegToSlot, Label] #14
+                 Label, LoadConstant, SlotToReg, RegToSlot, Label, LoadConstant, #34
+                 RegToSlot, Branch] #14
    end
 
     def test_if_instructions

test/mom/test_method_compiler.rb

@@ -7,7 +7,7 @@ module Mom
     def setup
     end
 
-    def in_test_vool(body = "@ivar = 5")
+    def in_test_vool(body = "@ivar = 5;return")
       code = in_Test("def meth; #{body};end")
       RubyX::RubyXCompiler.new(RubyX.default_test_options).ruby_to_mom(code)
     end
@@ -30,7 +30,7 @@ module Mom
     def test_compiles_all_risc
       compiler = in_test_vool().compilers.first.to_risc
       assert_equal Risc::LoadConstant , compiler.risc_instructions.next.class
-      assert_equal 17 , compiler.risc_instructions.length
+      assert_equal 20 , compiler.risc_instructions.length
     end
   end
 end

test/mom/test_return_sequence.rb

@@ -6,11 +6,11 @@ module Risc
 
     def setup
       super
-      @input = "5.div4"
+      @input = "return 5.div4"
       @expect = "something"
     end
-    def instruction(num) # 18 is the main, see length in test/mom/send/test_setup_simple.rb
-      produce_main.next( 18 + num)
+    def instruction(num) # 21 is the main, see length in test/mom/send/test_setup_simple.rb
+      produce_main.next( 21 + num)
     end
     def test_postamble_classes
       postamble.each_with_index do |ins , index|

test/mom/test_while_cmp.rb

@@ -6,14 +6,15 @@ module Risc
 
     def setup
       super
-      @input = "while(5 > 0) ; @a = true; end"
+      @input = "while(5 > 0) ; @a = true; end;return"
       @expect = [Label, LoadConstant, LoadConstant, SlotToReg, SlotToReg, #4
                  RegToSlot, RegToSlot, RegToSlot, RegToSlot, LoadConstant, #9
                  SlotToReg, RegToSlot, LoadConstant, SlotToReg, SlotToReg, #14
                  RegToSlot, LoadConstant, SlotToReg, RegToSlot, SlotToReg, #19
                  FunctionCall, Label, SlotToReg, LoadConstant, OperatorInstruction, #24
                  IsZero, LoadConstant, OperatorInstruction, IsZero, LoadConstant, #29
-                 SlotToReg, RegToSlot, Branch, Label] #34
+                 SlotToReg, RegToSlot, Branch, Label, LoadConstant, #34
+                 RegToSlot, Branch] #34
     end
 
     def test_while_instructions

test/mom/test_while_simple.rb

@@ -6,10 +6,11 @@ module Risc
 
     def setup
       super
-      @input = "while(@a) ; arg = 5 end"
-      @expect = [Label, SlotToReg, SlotToReg, LoadConstant, OperatorInstruction,
-                 IsZero, LoadConstant, OperatorInstruction, IsZero, LoadConstant,
-                 SlotToReg, RegToSlot, Branch, Label]
+      @input = "while(@a) ; arg = 5 end;return"
+      @expect = [Label, SlotToReg, SlotToReg, LoadConstant, OperatorInstruction, #4
+                 IsZero, LoadConstant, OperatorInstruction, IsZero, LoadConstant, #9
+                 SlotToReg, RegToSlot, Branch, Label, LoadConstant, #14
+                 RegToSlot, Branch] #19
     end
 
     def test_while_instructions

test/risc/test_method_compiler.rb

@@ -12,7 +12,7 @@ module Risc
       vool.to_mom(nil)
       vool
     end
-    def create_method(body = "@ivar = 5")
+    def create_method(body = "@ivar = 5;return")
       in_test_vool("def meth; #{body};end")
       test = Parfait.object_space.get_class_by_name(:Test)
       test.get_method(:meth)
@@ -20,7 +20,7 @@ module Risc
 
     def test_method_has_source
       method = create_method
-      assert_equal Vool::IvarAssignment ,  method.source.class
+      assert_equal Vool::ScopeStatement ,  method.source.class
     end
 
     def test_method_has_no_locals
@@ -40,20 +40,20 @@ module Risc
     end
 
     def test_creates_method_statement_in_class
-      clazz = in_test_vool("def meth; @ivar = 5 ;end")
+      clazz = in_test_vool("def meth; @ivar = 5 ;return;end")
       assert_equal Vool::Statements , clazz.body.class
       assert_equal Vool::MethodStatement , clazz.body.first.class
     end
 
     def test_callable_method_instance_type
-      in_test_vool("def meth; @ivar = 5; @ibar = 4;end")
+      in_test_vool("def meth; @ivar = 5; @ibar = 4;return;end")
       test = Parfait.object_space.get_class_by_name(:Test)
       method = test.instance_type.get_method(:meth)
       assert_equal 1, method.self_type.variable_index(:ivar)
       assert_equal 2, method.self_type.variable_index(:ibar)
     end
     def test_callable_method_has_one_local
-      in_test_vool("def meth; local = 5 ; a = 6;end")
+      in_test_vool("def meth; local = 5 ; a = 6;return;end")
       test = Parfait.object_space.get_class_by_name(:Test)
       method = test.get_method(:meth)
       assert_equal 3 , method.frame_type.instance_length

test/ruby/test_method_statement.rb

@@ -36,21 +36,4 @@ module Ruby
       assert_equal LocalAssignment , lst.body.class
     end
   end
-
-  class TestMethodStatementTrans < MiniTest::Test
-    include RubyTests
-    def setup()
-      input = "def tryout(arg1, arg2) ; a = arg1 ; end "
-      @lst = compile( input ).to_vool
-    end
-    def test_method
-      assert_equal Vool::MethodStatement , @lst.class
-    end
-    def test_method_args
-      assert_equal [:arg1, :arg2] , @lst.args
-    end
-    def test_body_is_scope_zero_statement
-      assert_equal Vool::LocalAssignment , @lst.body.class
-    end
-  end
 end

test/ruby/test_method_statement2.rb

@@ -0,0 +1,53 @@
+require_relative "helper"
+
+module Ruby
+  # other Return tests (standalone?) only test the statement
+  # But to get the implicit return, we test the method, as it inserts
+  # the implicit return
+  class TestMethodStatementRet < MiniTest::Test
+    include RubyTests
+    def test_single_const
+      @lst = compile( "def tryout(arg1, arg2) ; true ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.class
+    end
+    def test_single_instance
+      @lst = compile( "def tryout(arg1, arg2) ; @a ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.class
+    end
+    def test_single_call
+      @lst = compile( "def tryout(arg1, arg2) ; is_true() ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.class
+    end
+
+    def test_multi_const
+      @lst = compile( "def tryout(arg1, arg2) ; @a = some_call(); true ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.last.class
+    end
+    def test_multi_instance
+      @lst = compile( "def tryout(arg1, arg2) ; @a = some_call(); @a ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.last.class
+    end
+    def test_multi_call
+      @lst = compile( "def tryout(arg1, arg2) ; is_true() ; some_call() ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.last.class
+    end
+
+    def test_return
+      @lst = compile( "def tryout(arg1, arg2) ; return 1 ; end " ).to_vool
+      assert_equal Vool::ReturnStatement , @lst.body.class
+      assert_equal Vool::IntegerConstant , @lst.body.return_value.class
+    end
+    def test_local_assign
+      @lst = compile( "def tryout(arg1, arg2) ; a = 1 ; end " ).to_vool
+      assert_equal Vool::Statements , @lst.body.class
+      assert_equal Vool::ReturnStatement , @lst.body.last.class
+      assert_equal Vool::LocalVariable , @lst.body.last.return_value.class
+    end
+    def test_local_assign
+      @lst = compile( "def tryout(arg1, arg2) ; @a = 1 ; end " ).to_vool
+      assert_equal Vool::Statements , @lst.body.class
+      assert_equal Vool::ReturnStatement , @lst.body.last.class
+      assert_equal Vool::InstanceVariable , @lst.body.last.return_value.class
+    end
+  end
+end

test/rubyx/parfait/test_object.rb

@@ -5,21 +5,20 @@ module RubyX
   class TestObjecCompile < MiniTest::Test
     include ParfaitHelper
     def source
-      load_parfait(:object2)
+      load_parfait(:object)
     end
     def test_load
       assert source.include?("class Object")
       assert source.length > 2000
     end
-    def est_vool
+    def test_vool
       vool = compiler.ruby_to_vool source
       assert_equal Vool::ClassStatement , vool.class
       assert_equal :Object , vool.name
     end
-    def est_mom
+    def test_mom
       vool = compiler.ruby_to_mom source
-      assert_equal Vool::ClassStatement , vool.class
-      assert_equal :Object , vool.name
+      assert_equal Mom::MomCollection , vool.class
     end
   end
 end

test/support/compiling.rb

@@ -26,7 +26,6 @@ module VoolCompile
   include ScopeHelper
   include Mom
 
-
   def compile_first_method( input )
     input = as_test_main( input )
     collection = RubyX::RubyXCompiler.new(RubyX.default_test_options).ruby_to_mom(input)

test/vool/class_send/helper.rb

@@ -20,7 +20,7 @@ module Vool
       assert_equal Mom::MessageSetup , @ins.class , @ins
     end
     def test_two_instructions_are_returned
-      assert_equal 6 ,  @ins.length , @ins
+      assert_equal 8 ,  @ins.length , @ins
     end
     def test_receiver_move_class
       assert_equal Mom::ArgumentTransfer,  @ins.next(1).class
@@ -38,8 +38,8 @@ module Vool
       assert_equal Parfait::CallableMethod,  @ins.next(2).method.class
     end
     def test_array
-      check_array [MessageSetup,ArgumentTransfer,SimpleCall,Label,
-                  ReturnSequence , Label] , @ins
+      check_array [MessageSetup,ArgumentTransfer,SimpleCall,SlotLoad,
+                    ReturnJump,Label, ReturnSequence , Label] , @ins
     end
   end
 

test/vool/send/helper.rb

@@ -20,7 +20,7 @@ module Vool
       assert_equal MessageSetup , @ins.class , @ins
     end
     def test_two_instructions_are_returned
-      assert_equal 6 ,  @ins.length , @ins
+      assert_equal 8 ,  @ins.length , @ins
     end
     def test_receiver_move_class
       assert_equal ArgumentTransfer,  @ins.next(1).class
@@ -40,7 +40,8 @@ module Vool
       assert_equal Parfait::CallableMethod,  @ins.next(2).method.class
     end
     def test_array
-      check_array [MessageSetup,ArgumentTransfer,SimpleCall,Label, ReturnSequence ,
+      check_array [MessageSetup,ArgumentTransfer,SimpleCall,
+                  SlotLoad, ReturnJump, Label, ReturnSequence ,
                     Label] , @ins
     end
   end

test/vool/send/test_not_found.rb

@@ -21,7 +21,8 @@ module Vool
 
     def test_array
       check_array [NotSameCheck, SlotLoad, ResolveMethod, Label, MessageSetup ,
-                    ArgumentTransfer, DynamicCall, Label, ReturnSequence, Label]  , @ins
+                    ArgumentTransfer, DynamicCall, SlotLoad, ReturnJump,
+                    Label, ReturnSequence, Label]  , @ins
     end
 
   end

test/vool/send/test_send_args_send.rb

@@ -7,14 +7,14 @@ module Vool
     def setup
       Parfait.boot!(Parfait.default_test_options)
       Risc.boot!
-      @compiler = compile_first_method( "a = main(1 + 2)" )
+      @compiler = compile_first_method( "a = main(1 + 2);return a" )
       @ins = @compiler.mom_instructions.next
     end
 
     def test_array
       check_array [MessageSetup, ArgumentTransfer, SimpleCall, SlotLoad, MessageSetup ,
-                    ArgumentTransfer, SimpleCall, SlotLoad ,Label, ReturnSequence ,
-                    Label] , @ins
+                    ArgumentTransfer, SimpleCall, SlotLoad ,SlotLoad, ReturnJump,
+                    Label, ReturnSequence , Label] , @ins
     end
 
     def test_one_call

test/vool/send/test_send_cached_simple.rb

@@ -5,7 +5,7 @@ module Vool
     include VoolCompile
 
     def setup
-      @compiler = compile_first_method( "a = 5; a.div4")
+      @compiler = compile_first_method( "a = 5; a.div4;return ")
       @ins = @compiler.mom_instructions.next
     end
     def test_check_type
@@ -27,7 +27,8 @@ module Vool
 
     def test_array
       check_array [SlotLoad, NotSameCheck, SlotLoad, ResolveMethod ,
-                    Label, MessageSetup, ArgumentTransfer, DynamicCall, Label ,
+                    Label, MessageSetup, ArgumentTransfer, DynamicCall,
+                    SlotLoad, ReturnJump, Label ,
                     ReturnSequence, Label]  , @ins
     end
 

test/vool/send/test_send_self.rb

@@ -5,7 +5,7 @@ module Vool
     include SimpleSendHarness
 
     def send_method
-      "self.get_internal_word(0)"
+      "self.get_internal_word(0);return"
     end
     def test_receiver
       assert_equal SlotDefinition,  @ins.next.receiver.class

test/vool/send/test_send_simple.rb

@@ -5,7 +5,7 @@ module Vool
     include SimpleSendHarness
 
     def send_method
-      "5.div4"
+      "5.div4;return"
     end
     def receiver
       [Mom::IntegerConstant , 5]

test/vool/send/test_send_simple_args.rb

@@ -5,7 +5,7 @@ module Vool
     include SimpleSendHarness
 
     def send_method
-      "5.div4(1,2)"
+      "5.div4(1,2);return"
     end
 
     def receiver
@@ -20,8 +20,8 @@ module Vool
       assert_equal 2,    @ins.next(1).arguments[1].right.known_object.value
     end
     def test_array
-      check_array [MessageSetup,ArgumentTransfer,SimpleCall, Label, ReturnSequence ,
-                    Label] , @ins
+      check_array [MessageSetup,ArgumentTransfer,SimpleCall, SlotLoad, ReturnJump,
+                  Label, ReturnSequence , Label] , @ins
     end
   end
 end

test/vool/send/test_send_simple_string.rb

@@ -5,7 +5,7 @@ module Vool
     include SimpleSendHarness
 
     def send_method
-      "'5'.get_internal_byte(1)"
+      "'5'.get_internal_byte(1) ; return "
     end
     def receiver
       [Mom::StringConstant , "5"]

test/vool/test_assignment.rb

@@ -6,7 +6,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "local = 5")
+      @compiler = compile_first_method( "local = 5;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -38,7 +38,7 @@ module Vool
     include VoolCompile
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "@a = 5 ; local = @a")
+      @compiler = compile_first_method( "@a = 5 ; local = @a;return")
       @ins = @compiler.mom_instructions.next
     end
     def test_class_compiles
@@ -52,7 +52,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "arg = 5")
+      @compiler = compile_first_method( "arg = 5;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -79,13 +79,13 @@ module Vool
       Parfait.boot!(Parfait.default_test_options)
     end
     def test_assigns_const
-      @compiler = compile_first_method( "@a = 5")
+      @compiler = compile_first_method( "@a = 5;return")
       @ins = @compiler.mom_instructions.next
       assert_equal Mom::SlotLoad , @ins.class , @ins
       assert_equal Mom::IntegerConstant , @ins.right.known_object.class , @ins
     end
     def test_assigns_move
-      @compiler = compile_first_method( "@a = arg")
+      @compiler = compile_first_method( "@a = arg;return")
       @ins = @compiler.mom_instructions.next
       assert_equal Mom::SlotLoad , @ins.class , @ins
       assert_equal Mom::SlotDefinition , @ins.right.class , @ins

test/vool/test_class_statement.rb

@@ -67,7 +67,7 @@ module Vool
     include VoolCompile
 
     def setup
-      @compiler = compile_first_method( "if(@a) ; @a = 5 ; else; @a = 6 ; end")
+      @compiler = compile_first_method( "if(@a) ; @a = 5 ; else; @a = 6 ; end; return")
       @ins = @compiler.mom_instructions
     end
 
@@ -89,8 +89,8 @@ module Vool
     end
     def test_array
       check_array [Label, TruthCheck, Label, SlotLoad, Jump ,
-                    Label, SlotLoad, Label, Label, ReturnSequence ,
-                    Label] , @ins
+                    Label, SlotLoad, Label, SlotLoad, ReturnJump ,
+                    Label, ReturnSequence, Label]  , @ins
     end
   end
 end

test/vool/test_if_no_else.rb

@@ -7,7 +7,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "if(@a) ; @a = 5 ; end")
+      @compiler = compile_first_method( "if(@a) ; @a = 5 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -24,8 +24,8 @@ module Vool
       assert_equal Label , @ins.last.class , @ins
     end
     def test_array
-      check_array  [TruthCheck, Label, SlotLoad, Label, Label ,
-                    ReturnSequence, Label], @ins
+      check_array  [TruthCheck, Label, SlotLoad, Label, SlotLoad, ReturnJump,
+                    Label ,ReturnSequence, Label], @ins
     end
   end
 end

test/vool/test_if_no_if.rb

@@ -7,7 +7,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "unless(@a) ; @a = 5 ; end")
+      @compiler = compile_first_method( "unless(@a) ; @a = 5 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -25,7 +25,7 @@ module Vool
     end
     def test_array
       check_array  [TruthCheck, Label, Jump, Label, SlotLoad ,
-                    Label, Label, ReturnSequence, Label] , @ins
+                    Label, SlotLoad, ReturnJump,Label, ReturnSequence, Label] , @ins
     end
   end
 end

test/vool/test_if_simple.rb

@@ -7,7 +7,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "if(@a) ; @a = 5 ; else; @a = 6 ; end")
+      @compiler = compile_first_method( "if(@a) ; @a = 5 ; else; @a = 6 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -25,7 +25,7 @@ module Vool
     end
     def test_array
       check_array [TruthCheck, Label, SlotLoad, Jump, Label ,
-                    SlotLoad, Label, Label, ReturnSequence, Label], @ins
+                    SlotLoad, Label, SlotLoad, ReturnJump,Label, ReturnSequence, Label], @ins
     end
   end
 end

test/vool/test_if_statement.rb

@@ -6,7 +6,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "if(5.div4) ; @a = 6 ; else; @a = 5 ; end")
+      @compiler = compile_first_method( "if(5.div4) ; @a = 6 ; else; @a = 5 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -23,7 +23,7 @@ module Vool
     def test_array
       check_array [MessageSetup, ArgumentTransfer, SimpleCall, TruthCheck, Label ,
                     SlotLoad, Jump, Label, SlotLoad, Label ,
-                    Label, ReturnSequence, Label] , @ins
+                    SlotLoad, ReturnJump,Label, ReturnSequence, Label] , @ins
     end
 
   end

test/vool/test_while_statement.rb

@@ -6,7 +6,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "while(@a) ; @a = 5 ; end")
+      @compiler = compile_first_method( "while(@a) ; @a = 5 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -21,7 +21,7 @@ module Vool
     end
     def test_array
       check_array [Label, TruthCheck, SlotLoad, Jump, Label ,
-                    Label, ReturnSequence, Label], @ins
+                    SlotLoad, ReturnJump,Label, ReturnSequence, Label], @ins
     end
   end
 end

test/vool/test_while_statement1.rb

@@ -7,7 +7,7 @@ module Vool
 
     def setup
       Parfait.boot!(Parfait.default_test_options)
-      @compiler = compile_first_method( "while(5.div4) ; 5.div4 ; end")
+      @compiler = compile_first_method( "while(5.div4) ; 5.div4 ; end;return")
       @ins = @compiler.mom_instructions.next
     end
 
@@ -30,7 +30,8 @@ module Vool
     def test_array
       check_array [Label, MessageSetup, ArgumentTransfer, SimpleCall, TruthCheck ,
                     MessageSetup, ArgumentTransfer, SimpleCall, Jump, Label ,
-                    Label, ReturnSequence, Label] , @ins
+                    SlotLoad, ReturnJump,Label, ReturnSequence, Label ,Label ,
+                    ReturnSequence, Label] , @ins
     end
 
   end