Fixing ruby send with arguments

When send has complex args, mostly more sends, we hoist those out and pass created temporary variables

lib/ruby/call_statement.rb

@@ -17,6 +17,7 @@ module Ruby
       @arguments ||= []
     end
 
+    # we "normalize" or flatten any complex argument expressions into a list
     def to_vool
       statements = Vool::Statements.new([])
       arguments = []
@@ -31,12 +32,23 @@ module Ruby
       end
     end
 
+    # this is called for each arg and if the arg is not constant or Variable
+    # we create a tmp variable and assign to that, hoising all the calls.
+    # the effect is of walking the call tree now,
+    # rather than using a stack to do that at runtime
     def normalize_arg(arg , arguments , statements)
-      if arg.is_a?(Constant) and !arg.is_a?(CallStatement)
-        arguments << arg.to_vool
+      vool_arg = arg.to_vool
+      if arg.is_a?(Constant)
+        arguments << vool_arg
         return
       end
-      assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
+      if( vool_arg.is_a?(Vool::Statements))
+        while(vool_arg.length > 1)
+          statements << vool_arg.shift
+        end
+        vool_arg = vool_arg.shift
+      end
+      assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, vool_arg)
       statements << assign
       arguments << Vool::LocalVariable.new(assign.name)
     end

lib/ruby/statements.rb

@@ -20,6 +20,9 @@ module Ruby
     def length
       @statements.length
     end
+    def shift
+      @statements.shift
+    end
     def [](i)
       @statements[i]
     end

lib/vool/assignment.rb

@@ -5,6 +5,8 @@ module Vool
     def initialize(name , value )
       raise "Name nil #{self}" unless name
       raise "Value nil #{self}" unless value
+      raise "Value cant be Assignment #{value}" if value.is_a?(Assignment)
+      raise "Value cant be Statements #{value}" if value.is_a?(Statements)
       @name , @value = name , value
     end
 
@@ -19,6 +21,7 @@ module Vool
 
     def chain_assign(assign , compiler)
       return assign unless @value.is_a?(CallStatement)
+      raise "Move me to ruby layer"
       @value.to_mom(compiler) << assign
     end
   end

lib/vool/statements.rb

@@ -30,6 +30,9 @@ module Vool
     def prepend(o)
       @statements = [o] + @statements
     end
+    def shift
+      @statements.shift
+    end
 
     # to_mom all the statements. Append subsequent ones to the first, and return the
     # first.

test/ruby/helper.rb

@@ -9,10 +9,6 @@ module Ruby
       RubyCompiler.compile(input)
     end
 
-    def ruby_to_vool(input)
-      FIXMERubyXCompiler.new(input).ruby_to_vool
-    end
-
     def assert_raises_muted &block
       orig_stdout = $stdout
       $stdout = StringIO.new

test/ruby/test_send_statement.rb

@@ -1,7 +1,7 @@
 require_relative "helper"
 
 module Ruby
-  class TestSendFoo < MiniTest::Test
+  class TestSendNoArg < MiniTest::Test
     include RubyTests
     def setup
       @lst = compile( "foo")
@@ -22,7 +22,7 @@ module Ruby
       assert_equal "self.foo()" , @lst.to_s
     end
   end
-  class TestSendBar < MiniTest::Test
+  class TestSendSimpleArg < MiniTest::Test
     include RubyTests
     def setup
       @lst = compile( "bar(1)")
@@ -63,5 +63,30 @@ module Ruby
       lst = compile( "super(1)")
       assert_nil lst.name
     end
+    class TestSendSendArgs < MiniTest::Test
+      include RubyTests
+      def setup
+        @lst = compile( "call(arg1, arg2(more))")
+      end
+      def test_one_arg
+        assert_equal SendStatement , @lst.class
+      end
+      def test_one_arg_name
+        assert_equal :call , @lst.name
+      end
+      def test_one_arg_args
+        assert_equal SendStatement , @lst.arguments.first.class
+      end
+      def test_one_arg_args_args
+        assert_equal 0 , @lst.arguments.first.arguments.length
+      end
+      def test_two_arg_args
+        assert_equal SendStatement , @lst.arguments[1].class
+      end
+      def test_two_arg_args_args
+        assert_equal SendStatement , @lst.arguments[1].arguments.first.class
+        assert_equal :more , @lst.arguments[1].arguments.first.name
+      end
+    end
   end
 end

test/ruby/test_send_statement1.rb

@@ -1,7 +1,7 @@
 require_relative "helper"
 
 module Ruby
-  class TestSendFooVool < MiniTest::Test
+  class TestSendNoArgVool < MiniTest::Test
     include RubyTests
     def setup
       @lst = compile( "foo").to_vool
@@ -19,7 +19,7 @@ module Ruby
       assert_equal [] , @lst.arguments
     end
   end
-  class TestSendBarVool < MiniTest::Test
+  class TestSendSimpleArgVool < MiniTest::Test
     include RubyTests
     def setup
       @lst = compile( "bar(1)").to_vool

test/ruby/test_send_statement2.rb

@@ -0,0 +1,70 @@
+require_relative "helper"
+
+module Ruby
+  module LastBar
+    include RubyTests
+    def test_last_class
+      assert_equal Vool::SendStatement , @lst.last.class
+    end
+    def test_last_name
+      assert_equal :last , @lst.last.name
+    end
+    def test_last_arg
+      assert_equal Vool::LocalVariable , @lst.last.arguments.first.class
+    end
+    def test_lst_class
+      assert_equal Vool::Statements , @lst.class
+    end
+    def test_lst_no_statements
+      @lst.statements.each{|st| assert( ! st.is_a?(Vool::Statements) , st.class)}
+    end
+  end
+  class TestSendSendArgVool < MiniTest::Test
+    include LastBar
+    def setup
+      @lst = compile( "last(foo(1))").to_vool
+    end
+    def test_classes
+      assert_equal Vool::Statements , @lst.class
+      assert_equal Vool::LocalAssignment , @lst.first.class
+      assert_equal Vool::SendStatement , @lst.last.class
+    end
+    def test_foo1
+      assert_equal Vool::SendStatement , @lst.first.value.class
+      assert_equal :foo ,  @lst.first.value.name
+      assert_equal Vool::IntegerConstant , @lst.first.value.arguments.first.class
+    end
+  end
+  class Test3SendVool < MiniTest::Test
+    include LastBar
+    def setup
+      @lst = compile( "last(foo(more(1)))").to_vool
+    end
+    def test_classes
+      assert_equal Vool::Statements , @lst.class
+      assert_equal Vool::LocalAssignment , @lst.first.class
+      assert_equal Vool::SendStatement , @lst.last.class
+    end
+    def test_foo
+      assert_equal Vool::SendStatement , @lst.first.value.class
+      assert_equal :more ,  @lst.first.value.name
+      assert_equal Vool::IntegerConstant , @lst.first.value.arguments.first.class
+    end
+  end
+  class Test5SendVool < MiniTest::Test
+    include LastBar
+    def setup
+      @lst = compile( "last(foo(more(even_more(1),and_more(with_more))))").to_vool
+    end
+    def test_classes
+      assert_equal Vool::Statements , @lst.class
+      assert_equal Vool::LocalAssignment , @lst.first.class
+      assert_equal Vool::SendStatement , @lst.last.class
+    end
+    def test_foo
+      assert_equal Vool::SendStatement , @lst.first.value.class
+      assert_equal :even_more ,  @lst.first.value.name
+      assert_equal Vool::IntegerConstant , @lst.first.value.arguments.first.class
+    end
+  end
+end