From 3ecbd60d8044b109cd4a4db8687b9cf8d16b57f3 Mon Sep 17 00:00:00 2001
From: Daniele Varrazzo <daniele.varrazzo@gmail.com>
Date: Wed, 4 Nov 2020 18:22:49 +0100
Subject: [PATCH] Dropped dumper param of Dumper.register

Just use `cls`, as the class method is available to all the subclasses.
---
 psycopg3/psycopg3/adapt.py | 19 ++++++-------------
 tests/test_adapt.py        | 12 ++++++------
 2 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/psycopg3/psycopg3/adapt.py b/psycopg3/psycopg3/adapt.py
index 5343e3236..b911e74d7 100644
--- a/psycopg3/psycopg3/adapt.py
+++ b/psycopg3/psycopg3/adapt.py
@@ -47,32 +47,25 @@ class Dumper:
     def register(
         cls,
         src: type,
-        dumper: DumperType,
         context: AdaptContext = None,
         format: Format = Format.TEXT,
-    ) -> DumperType:
+    ) -> None:
         if not isinstance(src, type):
             raise TypeError(
                 f"dumpers should be registered on classes, got {src} instead"
             )
 
-        if not (isinstance(dumper, type)):
-            raise TypeError(f"dumpers should be classes, got {dumper} instead")
-
         where = context.dumpers if context is not None else Dumper.globals
-        where[src, format] = dumper
-        return dumper
+        where[src, format] = cls
 
     @classmethod
-    def register_binary(
-        cls, src: type, dumper: DumperType, context: AdaptContext = None
-    ) -> DumperType:
-        return cls.register(src, dumper, context, format=Format.BINARY)
+    def register_binary(cls, src: type, context: AdaptContext = None) -> None:
+        cls.register(src, context, format=Format.BINARY)
 
     @classmethod
     def text(cls, src: type) -> Callable[[DumperType], DumperType]:
         def text_(dumper: DumperType) -> DumperType:
-            cls.register(src, dumper)
+            dumper.register(src)
             return dumper
 
         return text_
@@ -80,7 +73,7 @@ class Dumper:
     @classmethod
     def binary(cls, src: type) -> Callable[[DumperType], DumperType]:
         def binary_(dumper: DumperType) -> DumperType:
-            cls.register_binary(src, dumper)
+            dumper.register_binary(src)
             return dumper
 
         return binary_
diff --git a/tests/test_adapt.py b/tests/test_adapt.py
index 5787bf116..e50b22003 100644
--- a/tests/test_adapt.py
+++ b/tests/test_adapt.py
@@ -37,8 +37,8 @@ def test_quote(data, result):
 
 
 def test_dump_connection_ctx(conn):
-    Dumper.register(str, make_dumper("t"), conn)
-    Dumper.register_binary(str, make_dumper("b"), conn)
+    make_dumper("t").register(str, conn)
+    make_dumper("b").register_binary(str, conn)
 
     cur = conn.cursor()
     cur.execute("select %s, %b", ["hello", "world"])
@@ -46,12 +46,12 @@ def test_dump_connection_ctx(conn):
 
 
 def test_dump_cursor_ctx(conn):
-    Dumper.register(str, make_dumper("t"), conn)
-    Dumper.register_binary(str, make_dumper("b"), conn)
+    make_dumper("t").register(str, conn)
+    make_dumper("b").register_binary(str, conn)
 
     cur = conn.cursor()
-    Dumper.register(str, make_dumper("tc"), cur)
-    Dumper.register_binary(str, make_dumper("bc"), cur)
+    make_dumper("tc").register(str, cur)
+    make_dumper("bc").register_binary(str, cur)
 
     cur.execute("select %s, %b", ["hello", "world"])
     assert cur.fetchone() == ("hellotc", "worldbc")
-- 
2.47.2