Apply Nick Alexander's patch so that Sagex that embeds positions in module,...

Apply Nick Alexander's patch so that Sagex that embeds positions in module, cdef class, and def class docstrings.

Cython/Compiler/Nodes.py

@@ -123,7 +123,12 @@ class ModuleNode(Node, BlockNode):
     #  body      StatListNode
     
     def analyse_declarations(self, env):
-        env.doc = self.doc
+        if Options.embed_pos_in_docstring:
+            env.doc = 'File: %s (starting at line %s)'%relative_position(self.pos)
+            if not self.doc is None:
+                env.doc = env.doc + '\\n' + self.doc
+        else:
+            env.doc = self.doc
         self.body.analyse_declarations(env)
     
     def process_implementation(self, env, result):
@@ -2352,7 +2357,10 @@ class PyClassDefNode(StatNode, BlockNode):
         import ExprNodes
         self.dict = ExprNodes.DictNode(pos, key_value_pairs = [])
         if self.doc:
-            doc_node = ExprNodes.StringNode(pos, value = self.doc)
+            if Options.embed_pos_in_docstring:
+                doc = 'File: %s (starting at line %s)'%relative_position(self.pos)
+            doc = doc + '\\n' + self.doc
+            doc_node = ExprNodes.StringNode(pos, value = doc)
         else:
             doc_node = None
         self.classobj = ExprNodes.ClassNode(pos,
@@ -2447,8 +2455,14 @@ class CClassDefNode(StatNode):
             visibility = self.visibility,
             typedef_flag = self.typedef_flag)
         scope = self.entry.type.scope
+        
         if self.doc:
-            scope.doc = self.doc
+            if Options.embed_pos_in_docstring:
+                scope.doc = 'File: %s (starting at line %s)'%relative_position(self.pos)
+                scope.doc = scope.doc + '\\n' + self.doc
+            else:
+                scope.doc = self.doc
+            
         if has_body:
             self.body.analyse_declarations(scope)
             if self.in_pxd: