emscripten: add general features to lib
[nit.git] / src / parser_util.nit
index 55ff3f7..f23ccda 100644 (file)
@@ -121,17 +121,18 @@ redef class ToolContext
                eof = tree.n_eof
                if not eof isa AError then
                        var ntype = tree.n_base.n_classdefs.first.n_propdefs.first.as(AMethPropdef).n_block.as(ABlockExpr).n_expr.first.as(AVardeclExpr).n_type.n_types.first
+                       ntype.parent = null
                        return ntype
                end
                error = eof
 
                lexer = new Lexer(source)
                var first = lexer.next
-               if not first isa EOF then
-                       var second = lexer.next
-                       if second isa EOF and not second isa AError then
-                               return first
-                       end
+               if first isa EOF then return first
+               var second = lexer.next
+               if second isa EOF and not second isa AError then
+                       first.parent = null
+                       return first
                end
 
                lexer = new InjectedLexer(source)
@@ -144,6 +145,7 @@ redef class ToolContext
                eof = tree.n_eof
                if not eof isa AError then
                        var nexpr = tree.n_base.n_classdefs.first.n_propdefs.first.as(AMethPropdef).n_block.as(ABlockExpr).n_expr.first.as(AVardeclExpr).n_expr.as(AParExpr).n_expr
+                       nexpr.parent = null
                        return nexpr
                end
                if eof.location > error.location then error = eof
@@ -158,6 +160,7 @@ redef class ToolContext
                if not eof isa AError then
                        var nblock = tree.n_base.n_classdefs.first.n_propdefs.first.as(AMethPropdef).n_block.as(ABlockExpr).n_expr.first.as(ADoExpr).n_block.as(ABlockExpr)
                        nblock.n_kwend = null # drop injected token
+                       nblock.parent = null
                        return nblock
                end
                if eof.location > error.location then error = eof
@@ -216,7 +219,6 @@ class InjectedLexer
        do
                if not injected_before.is_empty then
                        var tok = injected_before.shift
-                       if tok._location == null then tok._location = new Location(file, 1, 1, 1, 0)
                        return tok
                end
                if not is_finished then
@@ -227,7 +229,6 @@ class InjectedLexer
                end
 
                var tok = injected_after.shift
-               if tok._location == null then tok._location = new Location(file, 1, 1, 1, 0)
                return tok
        end
 end