parser: node locations are not nullable

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

diff --git a/src/parser/parser_abs.nit b/src/parser/parser_abs.nit
index 1cc42a7..1918a3d 100644 (file)
--- a/src/parser/parser_abs.nit
+++ b/src/parser/parser_abs.nit
@@ -6,7 +6,11 @@ import mmloader
 
 # Root of the AST hierarchy
 abstract class ANode
-       readable var _location: nullable Location
+       var _location: nullable Location
+
+       # Location is set during AST building. Once built, location cannon be null
+       # However, manual instanciated nodes may need mode care
+       fun location: Location do return _location.as(not null)
 end
 
 # Ancestor of all tokens
@@ -17,7 +21,7 @@ end
 # Ancestor of all productions
 abstract class Prod
 special ANode
-       fun location=(loc: nullable Location) do _location = loc
+       fun location=(loc: Location) do _location = loc
 end
 class TEol
 special Token