parser: clean and factorize services in parser_prod

[nit.git] / src / parser / parser_nodes.nit

diff --git a/src/parser/parser_nodes.nit b/src/parser/parser_nodes.nit
index 295aaf2..fbd2f77 100644 (file)
--- a/src/parser/parser_nodes.nit
+++ b/src/parser/parser_nodes.nit
@@ -132,6 +132,40 @@ class ANodes[E: ANode]
                assert e.parent == parent
                e.parent = null
        end
+
+       # Used in parent contructor to fill elements
+       private fun unsafe_add_all(nodes: Collection[Object])
+       do
+               var parent = self.parent
+               for n in nodes do
+                       assert n isa E
+                       add n
+                       n.parent = parent
+               end
+       end
+
+       private fun replace_child(old_child: ANode, new_child: nullable ANode): Bool
+       do
+               var parent = self.parent
+               for i in [0..length[ do
+                       if self[i] == old_child then
+                               if new_child != null then
+                                       assert new_child isa E
+                                       self[i] = new_child
+                                       new_child.parent = parent
+                               else
+                                       self.remove_at(i)
+                               end
+                               return true
+                       end
+               end
+               return false
+       end
+
+       private fun visit_all(v: Visitor)
+       do
+               for n in self do v.enter_visit(n)
+       end
 end
 
 # Ancestor of all tokens