WIP functions processing

pythonbpf/type_deducer.py

@@ -0,0 +1,29 @@
+import ctypes
+from llvmlite import ir
+
+def ctypes_to_ir(ctype):
+    if ctype is ctypes.c_int32:
+        return ir.IntType(32)
+    if ctype is ctypes.c_int64:
+        return ir.IntType(64)
+    if ctype is ctypes.c_uint8:
+        return ir.IntType(8)
+    if ctype is ctypes.c_double:
+        return ir.DoubleType()
+    if ctype is ctypes.c_float:
+        return ir.FloatType()
+
+    # pointers
+    if hasattr(ctype, "_type_") and hasattr(ctype, "_length_"):
+        # ctypes array
+        return ir.ArrayType(ctypes_to_ir(ctype._type_), ctype._length_)
+
+    # if hasattr(ctype, "_type_") and issubclass(ctype, ctypes._Pointer):
+    #     return ir.PointerType(ctypes_to_ir(ctype._type_))
+
+    # structs
+    if issubclass(ctype, ctypes.Structure):
+        fields = [ctypes_to_ir(f[1]) for f in ctype._fields_]
+        return ir.LiteralStructType(fields)
+
+    raise NotImplementedError(f"No mapping for {ctype}")