Native deserialization based on Rust and PyO3

major refactoring

We are now (de-)serializing manually by calling prost's low level API.

This is a little bit faster than before, and also a lot cleaner.

benchmarks/benchmarks.py

@@ -6,32 +6,32 @@
 
 @dataclass
 class TestMessage(betterproto.Message):
-    foo: int = betterproto.uint32_field(0)
-    bar: str = betterproto.string_field(1)
-    baz: float = betterproto.float_field(2)
+    foo: int = betterproto.uint32_field(1)
+    bar: str = betterproto.string_field(2)
+    baz: float = betterproto.float_field(3)
 
 
 @dataclass
 class TestNestedChildMessage(betterproto.Message):
-    str_key: str = betterproto.string_field(0)
-    bytes_key: bytes = betterproto.bytes_field(1)
-    bool_key: bool = betterproto.bool_field(2)
-    float_key: float = betterproto.float_field(3)
-    int_key: int = betterproto.uint64_field(4)
+    str_key: str = betterproto.string_field(1)
+    bytes_key: bytes = betterproto.bytes_field(2)
+    bool_key: bool = betterproto.bool_field(3)
+    float_key: float = betterproto.float_field(4)
+    int_key: int = betterproto.uint64_field(5)
 
 
 @dataclass
 class TestNestedMessage(betterproto.Message):
-    foo: TestNestedChildMessage = betterproto.message_field(0)
-    bar: TestNestedChildMessage = betterproto.message_field(1)
-    baz: TestNestedChildMessage = betterproto.message_field(2)
+    foo: TestNestedChildMessage = betterproto.message_field(1)
+    bar: TestNestedChildMessage = betterproto.message_field(2)
+    baz: TestNestedChildMessage = betterproto.message_field(3)
 
 
 @dataclass
 class TestRepeatedMessage(betterproto.Message):
-    foo_repeat: List[str] = betterproto.string_field(0)
-    bar_repeat: List[int] = betterproto.int64_field(1)
-    baz_repeat: List[bool] = betterproto.bool_field(2)
+    foo_repeat: List[str] = betterproto.string_field(1)
+    bar_repeat: List[int] = betterproto.int64_field(2)
+    baz_repeat: List[bool] = betterproto.bool_field(3)
 
 
 class BenchMessage:
@@ -44,7 +44,7 @@ def setup(self):
         self.instance_filled_bytes = bytes(self.instance_filled)
         self.instance_filled_nested = TestNestedMessage(
             TestNestedChildMessage("foo", bytearray(b"test1"), True, 0.1234, 500),
-            TestNestedChildMessage("bar", bytearray(b"test2"), True, 3.1415, -302),
+            TestNestedChildMessage("bar", bytearray(b"test2"), True, 3.1415, 302),
             TestNestedChildMessage("baz", bytearray(b"test3"), False, 1e5, 300),
         )
         self.instance_filled_nested_bytes = bytes(self.instance_filled_nested)
@@ -71,9 +71,9 @@ def time_overhead(self):
 
         @dataclass
         class Message(betterproto.Message):
-            foo: int = betterproto.uint32_field(0)
-            bar: str = betterproto.string_field(1)
-            baz: float = betterproto.float_field(2)
+            foo: int = betterproto.uint32_field(1)
+            bar: str = betterproto.string_field(2)
+            baz: float = betterproto.float_field(3)
 
     def time_instantiation(self):
         """Time instantiation"""

betterproto-extras/.gitignore

@@ -0,0 +1,72 @@
+/target
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+.pytest_cache/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+.venv/
+env/
+bin/
+build/
+develop-eggs/
+dist/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+include/
+man/
+venv/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+pip-selfcheck.json
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+.project
+.pydevproject
+
+# Rope
+.ropeproject
+
+# Django stuff:
+*.log
+*.pot
+
+.DS_Store
+
+# Sphinx documentation
+docs/_build/
+
+# PyCharm
+.idea/
+
+# VSCode
+.vscode/
+
+# Pyenv
+.python-version