removed data from ResultBase.__init__, due to unobvious semantics + unnecessary…

gof/_test_cc.py

@@ -9,8 +9,9 @@ from env import Env
 class Double(ResultBase):
 
     def __init__(self, data, name = "oignon"):
+        ResultBase.__init__(self, role = None, name = name)
         assert isinstance(data, float)
-        ResultBase.__init__(self, role = None, data = data, name = name)
+        self.data = data
 
     def __str__(self):
         return self.name

gof/_test_ext.py

@@ -13,7 +13,8 @@ from toolbox import EquivTool
 class MyResult(ResultBase):
 
     def __init__(self, name):
-        ResultBase.__init__(self, role = None, data = [1000], name = name)
+        ResultBase.__init__(self, role = None, name = name)
+        self.data = [1000]
 
     def __str__(self):
         return self.name

gof/_test_graph.py

@@ -11,7 +11,8 @@ class MyResult(ResultBase):
 
     def __init__(self, thingy):
         self.thingy = thingy
-        ResultBase.__init__(self, role = None, data = [self.thingy])
+        ResultBase.__init__(self, role = None )
+        self.data = [self.thingy]
 
     def __eq__(self, other):
         return self.same_properties(other)

gof/_test_link.py

@@ -11,8 +11,9 @@ from link import *
 class Double(ResultBase):
 
     def __init__(self, data, name = "oignon"):
+        ResultBase.__init__(self, role = None, name = name)
         assert isinstance(data, float)
-        ResultBase.__init__(self, role = None, data = data, name = name)
+        self.data = data
 
     def __str__(self):
         return self.name
@@ -103,6 +104,22 @@ class _test_PerformLinker(unittest.TestCase):
         assert fn(1.0, 2.0, 3.0) == 1.5
         assert e.data != 1.5
 
+    def test_input_output_same(self):
+        x, y, z = inputs()
+        a,d = add(x,y), div(x,y)
+        e = mul(a,d)
+        fn = perform_linker(env([e], [e])).make_function()
+        self.failUnless(1 is fn(1))
+
+    def test_input_dependency0(self):
+        x, y, z = inputs()
+        a,d = add(x,y), div(x,y)
+        e = mul(a,d)
+        fn = perform_linker(env([x, a], [e])).make_function()
+        #perform linker should have recognized that one input is a function of
+        #the other one, which makes no sense
+        self.fail('this graph should not have been compiled')
+
 
 if __name__ == '__main__':
     unittest.main()

gof/_test_modes.py

@@ -12,8 +12,9 @@ from env import Env
 class Double(ResultBase):
 
     def __init__(self, data, name = "oignon"):
+        ResultBase.__init__(self, role = None, name = name)
         assert isinstance(data, float)
-        ResultBase.__init__(self, role = None, data = data, name = name)
+        self.data = data
 
     def __str__(self):
         return self.name

gof/_test_op.py

@@ -9,7 +9,8 @@ class MyResult(ResultBase):
 
     def __init__(self, thingy):
         self.thingy = thingy
-        ResultBase.__init__(self, role = None, data = [self.thingy])
+        ResultBase.__init__(self, role = None)
+        self.data = [self.thingy]
 
     def __eq__(self, other):
         return self.same_properties(other)

gof/_test_opt.py

@@ -11,7 +11,8 @@ from toolbox import *
 class MyResult(ResultBase):
 
     def __init__(self, name):
-        ResultBase.__init__(self, role = None, data = [1000], name = name)
+        ResultBase.__init__(self, role = None, name = name)
+        self.data = [1000]
 
     def __str__(self):
         return self.name

gof/_test_toolbox.py

@@ -13,7 +13,8 @@ from toolbox import *
 class MyResult(ResultBase):
 
     def __init__(self, name):
-        ResultBase.__init__(self, role = None, data = [1000], name = name)
+        ResultBase.__init__(self, role = None, name = name)
+        self.data = [1000]
 
     def __str__(self):
         return self.name

gof/result.py

@@ -57,11 +57,10 @@ class ResultBase(object):
 
     __slots__ = ['_role', '_data', 'state', '_name']
 
-    def __init__(self, role=None, data=None, name=None):
+    def __init__(self, role=None, name=None):
         self._role = role
         self._data = [None]
         self.state = Empty
-        self.__set_data(data)
         self.name = name