Added llpython.af_to_api module. Started work on a code generator that accepts address flows, and outputs an LLVM function that implements the given code object using (undefined) API calls for bytecode instructions.

llpython/opcode_util.py

@@ -280,5 +280,12 @@ def build_basic_blocks (co_obj):
                                                labels + [len(co_code)]))
     return blocks
 
+# ______________________________________________________________________
+
+def get_nargs(co_obj):
+    flags = co_obj.co_flags
+    return (1 + co_obj.co_argcount + (1 if flags & 4 else 0) +
+            (1 if flags & 8 else 0))
+
 # ______________________________________________________________________
 # End of opcode_util.py