nullable: convert lib, tools and tests

[nit.git] / src / parser / xss / nodes.xss

diff --git a/src/parser/xss/nodes.xss b/src/parser/xss/nodes.xss
index 71d4836..8b0d044 100644 (file)
--- a/src/parser/xss/nodes.xss
+++ b/src/parser/xss/nodes.xss
@@ -35,7 +35,7 @@ $ end template
 $ template make_nodes()
 redef class PNode
        # Parent of the node in the AST
-       readable writable attr _parent: PNode 
+       readable writable attr _parent: nullable PNode
 
        # Remove a child from the AST
        meth remove_child(child: PNode)
@@ -44,7 +44,7 @@ redef class PNode
        end
 
        # Replace a child with an other node in the AST
-       meth replace_child(old_child: PNode, new_child: PNode) is abstract
+       meth replace_child(old_child: PNode, new_child: nullable PNode) is abstract
 
        # Replace itself with an other node in the AST
        meth replace_with(node: PNode)
@@ -78,7 +78,7 @@ end
 redef class Token
        redef meth visit_all(v: Visitor) do end
        redef meth visit_all_reverse(v: Visitor) do end
-       redef meth replace_child(old_child: PNode, new_child: PNode) do end
+       redef meth replace_child(old_child: PNode, new_child: nullable PNode) do end
 
        redef meth locate: String
        do
@@ -90,10 +90,10 @@ end
 
 redef class Prod
        # The first token of the production node
-       readable writable attr _first_token: Token 
+       readable writable attr _first_token: nullable Token
 
        # The last token of the production node
-       readable writable attr _last_token: Token 
+       readable writable attr _last_token: nullable Token
 
        redef meth locate: String
        do
@@ -134,7 +134,7 @@ class Visitor
         # Ask the visitor to visit a given node.
         # Usually automatically called by visit_all* methods.
         # Concrete visitors should redefine this method.
-        meth visit(e: PNode) is abstract
+        meth visit(e: nullable PNode) is abstract
 end
 
 $ end template