Start work on exprs

typon/trans/tests/user_generics.py

@@ -23,4 +23,4 @@
 
 
 if __name__ == "__main__":
-    print(5)
+    print("abc")
\ No newline at end of file

typon/trans/transpiler/phases/emit_cpp/visitors.py

 import ast
+from enum import Flag
 from itertools import chain
 from typing import Iterable
 
@@ -89,3 +90,11 @@ def join(sep: str, items: Iterable[Iterable[str]]) -> Iterable[str]:
 
 def flatmap(f, items):
     return chain.from_iterable(map(f, items))
+
+class CoroutineMode(Flag):
+    SYNC = 1
+    FAKE = 2 | SYNC
+    ASYNC = 4
+    GENERATOR = 8 | ASYNC
+    TASK = 16 | ASYNC
+    JOIN = 32 | ASYNC
\ No newline at end of file