tranform: drop ASuperstringExpr

[nit.git] / src / transform.nit

diff --git a/src/transform.nit b/src/transform.nit
index bf4b992..b2db18e 100644 (file)
--- a/src/transform.nit
+++ b/src/transform.nit
@@ -88,13 +88,14 @@ redef class AVardeclExpr
        #
        # Declarations are only useful for scope rules
        # Once names are associated with real objects, ther declaration become useless
-       # Therefore, if there is no initial value, then just detach it
+       # Therefore, if there is no initial value, then just ignore it
        # Else, replace it with a simple assignment
        redef fun accept_transform_visitor(v)
        do
                var nexpr = n_expr
                if nexpr == null then
-                       detach
+                       # do nothing
+                       # note: not detached because the collection is currently under iteration
                else
                        var nvar = v.builder.make_var_assign(self.variable.as(not null), nexpr)
                        replace_with(nvar)
@@ -189,37 +190,6 @@ redef class AArrayExpr
        end
 end
 
-redef class ASuperstringExpr
-       # `"x{y}z"` is replaced with
-       #
-       #     var t = new Array[Object].with_capacity(3)
-       #     t.add("x")
-       #     t.add(y)
-       #     t.add("z")
-       #     t.to_s
-       redef fun accept_transform_visitor(v)
-       do
-               var nblock = v.builder.make_block
-
-               var arraytype = v.get_class(self, "Array").get_mtype([v.get_class(self, "Object").mclass_type])
-               var meth = v.get_method(self, "with_capacity", arraytype.mclass)
-               var nnew = v.builder.make_new(arraytype, meth, [v.builder.make_int(n_exprs.length)])
-               nblock.add nnew
-
-               var madd = v.get_method(self, "add", arraytype.mclass)
-               for nexpr in self.n_exprs do
-                       var nadd = v.builder.make_call(nnew.make_var_read, madd, [nexpr])
-                       nblock.add nadd
-               end
-
-               var mtos = v.get_method(self, "to_s", arraytype.mclass)
-               var ntos = v.builder.make_call(nnew.make_var_read, mtos, null)
-               nblock.add ntos
-
-               replace_with(nblock)
-       end
-end
-
 redef class ACrangeExpr
        # `[x..y]` is replaced with `new Range[X](x,y)`
        redef fun accept_transform_visitor(v)