Revert "initial commit of multi-type support (only list of strings for now)"

This reverts commit bf8900200c25d383c883501446a8048ad8966d94.

2 files changed, 1 insertions, 14 deletions

diff --git a/neb/std/core.py b/neb/std/core.py
index 750594e..1c3c4b4 100644
--- a/neb/std/core.py
+++ b/neb/std/core.py
@@ -47,7 +47,7 @@ CORE.register("redef", Builtin("redef", interpretRedef, [def_name_arg, def_val_a
 def interpretLambda(symbol, args, env, ns):
     new_args = args
     return_type = Type(":any")
-    if isinstance(args[0], Type) or isinstance(args[0], MultiType):
+    if isinstance(args[0], Type):
         return_type = args[0]
         new_args = args[1:]
 
diff --git a/neb/std/types.py b/neb/std/types.py
index b5422da..f8d5405 100644
--- a/neb/std/types.py
+++ b/neb/std/types.py
@@ -69,16 +69,6 @@ def interpretIsLiteral(symbol, args, env, ns):
 
 TYPES.register("literal?", Builtin("literal?", interpretIsLiteral, [Arg("arg", TypeEnum.ANY)], return_type=Type(":bool")))
 
-def interpretIsListOfString(symbol, args, env, ns):
-    if not isinstance(args[0], List):
-        return Bool(False)
-    for arg in args[0].args:
-        if not isinstance(arg, String):
-            return Bool(False)
-    return Bool(True)
-
-TYPES.register("list-of-string?", Builtin("list-of-string?", interpretIsListOfString, [Arg("arg", TypeEnum.ANY)], return_type=Type(":bool")))
-
 # add types to env
 any_type = NebType(":any", None, interpretIsAny)
 literal_type = NebType(":literal", any_type, interpretIsLiteral)
@@ -89,8 +79,6 @@ number_type = NebType(":number", literal_type, interpretIsNumber)
 int_type = NebType(":int", number_type, interpretIsInt)
 float_type = NebType(":float", number_type, interpretIsFloat)
 
-list_of_string_type = NebType(":[:string]", list_type, interpretIsListOfString)
-
 TYPES.register(":any", any_type)
 TYPES.register(":literal", literal_type)
 TYPES.register(":string", string_type)
@@ -99,4 +87,3 @@ TYPES.register(":bool", bool_type)
 TYPES.register(":number", number_type)
 TYPES.register(":int", int_type)
 TYPES.register(":float", float_type)
-TYPES.register(":[:string]", list_of_string_type)