added soft_default functionality to dataclassio

.efrocachemap

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.idea/dictionaries/ericf.xml

@@ -81,6 +81,7 @@
       <w>anyofallof</w>
       <w>anyval</w>
       <w>aosp</w>
+      <w>aparsed</w>
       <w>apichanges</w>
       <w>apis</w>
       <w>apks</w>
@@ -217,6 +218,7 @@
       <w>bdir</w>
       <w>belarussian</w>
       <w>benboncan</w>
+      <w>benning</w>
       <w>bfiledir</w>
       <w>bfiles</w>
       <w>bgmodel</w>
@@ -847,6 +849,7 @@
       <w>flav</w>
       <w>fldtypes</w>
       <w>flines</w>
+      <w>floinkdingle</w>
       <w>floof</w>
       <w>floofcls</w>
       <w>floop</w>
@@ -950,6 +953,7 @@
       <w>gametypes</w>
       <w>gameutils</w>
       <w>gbytecount</w>
+      <w>gcwe</w>
       <w>gearvr</w>
       <w>genchangelog</w>
       <w>gencmd</w>
@@ -1383,6 +1387,7 @@
       <w>ltypes</w>
       <w>lubyte</w>
       <w>luuid</w>
+      <w>lval</w>
       <w>lzma</w>
       <w>lzmamodule</w>
       <w>macappstore</w>
@@ -1648,6 +1653,7 @@
       <w>ogval</w>
       <w>oival</w>
       <w>okbtn</w>
+      <w>oldbook</w>
       <w>oldlady</w>
       <w>onln</w>
       <w>onscreencountdown</w>
@@ -1818,6 +1824,7 @@
       <w>prch</w>
       <w>prec</w>
       <w>precommand</w>
+      <w>precompiling</w>
       <w>preconfig</w>
       <w>preexec</w>
       <w>prefablib</w>
@@ -1877,6 +1884,7 @@
       <w>ptrans</w>
       <w>ptype</w>
       <w>ptypename</w>
+      <w>pubdeviceid</w>
       <w>publictab</w>
       <w>pubsync</w>
       <w>pubtargets</w>

CHANGELOG.md

@@ -1,4 +1,4 @@
-### 1.6.12 (20556, 2022-04-19)
+### 1.6.12 (20561, 2022-04-21)
 - More internal work on V2 master-server communication
 
 ### 1.6.11 (20539, 2022-03-23)

Makefile

@@ -695,6 +695,11 @@ test-message:
 	@tools/pcommand pytest -o log_cli=true -o log_cli_level=debug -s -vv \
       tests/test_efro/test_message.py
 
+# Individual test with extra output enabled.
+test-dataclassio:
+	@tools/pcommand pytest -o log_cli=true -o log_cli_level=debug -s -vv \
+      tests/test_efro/test_dataclassio.py
+
 # Individual test with extra output enabled.
 test-rpc:
 	@tools/pcommand pytest -o log_cli=true -o log_cli_level=debug -s -vv \

ballisticacore-cmake/.idea/dictionaries/ericf.xml

@@ -53,6 +53,7 @@
       <w>anyofallof</w>
       <w>anyval</w>
       <w>aosp</w>
+      <w>aparsed</w>
       <w>apientry</w>
       <w>apost</w>
       <w>appconfig</w>
@@ -104,6 +105,7 @@
       <w>bbbbbbb</w>
       <w>bcfn</w>
       <w>bdea</w>
+      <w>benning</w>
       <w>bezanson</w>
       <w>bgra</w>
       <w>bigendian</w>
@@ -418,6 +420,7 @@
       <w>fjco</w>
       <w>fjcoiwef</w>
       <w>flipbit</w>
+      <w>floinkdingle</w>
       <w>floop</w>
       <w>flopsy</w>
       <w>fname</w>
@@ -462,6 +465,7 @@
       <w>gasmsg</w>
       <w>gbus</w>
       <w>gcc's</w>
+      <w>gcwe</w>
       <w>gearvr</w>
       <w>genchangelog</w>
       <w>gencmd</w>
@@ -668,6 +672,7 @@
       <w>ltypes</w>
       <w>lubyte</w>
       <w>luuid</w>
+      <w>lval</w>
       <w>lvec</w>
       <w>lvoid</w>
       <w>macbuild</w>
@@ -821,6 +826,7 @@
       <w>offsy</w>
       <w>oiffsss</w>
       <w>okbtn</w>
+      <w>oldbook</w>
       <w>oldname</w>
       <w>oooo</w>
       <w>ooooooo</w>
@@ -896,6 +902,7 @@
       <w>ppre</w>
       <w>pptabcom</w>
       <w>precalc</w>
+      <w>precompiling</w>
       <w>preconfig</w>
       <w>predeclare</w>
       <w>prefs</w>
@@ -926,6 +933,7 @@
       <w>ptrs</w>
       <w>ptype</w>
       <w>ptypename</w>
+      <w>pubdeviceid</w>
       <w>publictab</w>
       <w>pubtargets</w>
       <w>pulseaudio</w>

ballisticacore-cmake/.idea/inspectionProfiles/Project_Default.xml

@@ -10,8 +10,11 @@
       <option name="clangTidyChecks" value="-*,bugprone-argument-comment,bugprone-assert-side-effect,bugprone-bad-signal-to-kill-thread,bugprone-branch-clone,bugprone-copy-constructor-init,bugprone-dangling-handle,bugprone-dynamic-static-initializers,bugprone-fold-init-type,bugprone-forward-declaration-namespace,bugprone-forwarding-reference-overload,bugprone-inaccurate-erase,bugprone-incorrect-roundings,bugprone-integer-division,bugprone-macro-parentheses,bugprone-macro-repeated-side-effects,bugprone-misplaced-operator-in-strlen-in-alloc,bugprone-misplaced-pointer-arithmetic-in-alloc,bugprone-misplaced-widening-cast,bugprone-move-forwarding-reference,bugprone-multiple-statement-macro,bugprone-no-escape,bugprone-not-null-terminated-result,bugprone-parent-virtual-call,bugprone-posix-return,bugprone-sizeof-container,bugprone-sizeof-expression,bugprone-spuriously-wake-up-functions,bugprone-string-constructor,bugprone-string-integer-assignment,bugprone-string-literal-with-embedded-nul,bugprone-suspicious-enum-usage,bugprone-suspicious-include,bugprone-suspicious-memset-usage,bugprone-suspicious-missing-comma,bugprone-suspicious-semicolon,bugprone-suspicious-string-compare,bugprone-swapped-arguments,bugprone-terminating-continue,bugprone-throw-keyword-missing,bugprone-too-small-loop-variable,bugprone-undefined-memory-manipulation,bugprone-undelegated-constructor,bugprone-unhandled-self-assignment,bugprone-unused-raii,bugprone-unused-return-value,bugprone-use-after-move,bugprone-virtual-near-miss,cert-dcl21-cpp,cert-dcl58-cpp,cert-err34-c,cert-err52-cpp,cert-err58-cpp,cert-err60-cpp,cert-flp30-c,cert-msc50-cpp,cert-msc51-cpp,cppcoreguidelines-interfaces-global-init,cppcoreguidelines-narrowing-conversions,cppcoreguidelines-pro-type-member-init,cppcoreguidelines-slicing,google-default-arguments,google-explicit-constructor,google-runtime-operator,hicpp-exception-baseclass,hicpp-multiway-paths-covered,misc-misplaced-const,misc-new-delete-overloads,misc-no-recursion,misc-non-copyable-objects,misc-throw-by-value-catch-by-reference,misc-unconventional-assign-operator,misc-uniqueptr-reset-release,modernize-avoid-bind,modernize-concat-nested-namespaces,modernize-deprecated-headers,modernize-deprecated-ios-base-aliases,modernize-loop-convert,modernize-make-shared,modernize-make-unique,modernize-pass-by-value,modernize-raw-string-literal,modernize-redundant-void-arg,modernize-replace-auto-ptr,modernize-replace-disallow-copy-and-assign-macro,modernize-replace-random-shuffle,modernize-return-braced-init-list,modernize-shrink-to-fit,modernize-unary-static-assert,modernize-use-auto,modernize-use-bool-literals,modernize-use-emplace,modernize-use-equals-default,modernize-use-equals-delete,modernize-use-noexcept,modernize-use-nullptr,modernize-use-override,modernize-use-transparent-functors,modernize-use-uncaught-exceptions,mpi-buffer-deref,mpi-type-mismatch,openmp-use-default-none,performance-faster-string-find,performance-for-range-copy,performance-implicit-conversion-in-loop,performance-inefficient-algorithm,performance-inefficient-string-concatenation,performance-inefficient-vector-operation,performance-move-const-arg,performance-move-constructor-init,performance-no-automatic-move,performance-noexcept-move-constructor,performance-trivially-destructible,performance-type-promotion-in-math-fn,performance-unnecessary-copy-initialization,performance-unnecessary-value-param,portability-simd-intrinsics,readability-avoid-const-params-in-decls,readability-const-return-type,readability-container-size-empty,readability-delete-null-pointer,readability-deleted-default,readability-inconsistent-declaration-parameter-name,readability-misleading-indentation,readability-misplaced-array-index,readability-non-const-parameter,readability-redundant-control-flow,readability-redundant-declaration,readability-redundant-function-ptr-dereference,readability-redundant-smartptr-get,readability-redundant-string-cstr,readability-redundant-string-init,readability-simplify-subscript-expr,readability-static-accessed-through-instance,readability-static-definition-in-anonymous-namespace,readability-string-compare,readability-uniqueptr-delete-release,readability-use-anyofallof,-misc-no-recursion" />
       <option name="preferClangTidyFilesOverIDESettings" value="false" />
     </inspection_tool>
+    <inspection_tool class="ConstantConditionsOC" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="ConstantFunctionResult" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="ConstructionIsNotAllowed" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="DuplicateSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="EndlessLoop" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="GrazieInspection" enabled="false" level="TYPO" enabled_by_default="false" />
     <inspection_tool class="HttpUrlsUsage" enabled="true" level="WEAK WARNING" enabled_by_default="true">
       <option name="ignoredUrls">
@@ -93,6 +96,8 @@
       <option name="enableSimplifyTernaryWithConstantBranch" value="false" />
     </inspection_tool>
     <inspection_tool class="StaticnessMismatch" enabled="false" level="ERROR" enabled_by_default="false" />
+    <inspection_tool class="UnreachableCallsOfFunction" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="UnreachableCode" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="UnusedExpressionResult" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="UnusedGlobalDeclaration" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="UnusedLocalVariable" enabled="false" level="WARNING" enabled_by_default="false" />

src/ballistica/ballistica.cc

@@ -21,7 +21,7 @@
 namespace ballistica {
 
 // These are set automatically via script; don't modify them here.
-const int kAppBuildNumber = 20556;
+const int kAppBuildNumber = 20561;
 const char* kAppVersion = "1.6.12";
 
 // Our standalone globals.

src/ballistica/dynamics/material/roll_sound_material_action.h

@@ -5,6 +5,7 @@
 
 #include "ballistica/ballistica.h"
 #include "ballistica/dynamics/material/material_action.h"
+#include "ballistica/media/component/sound.h"
 
 namespace ballistica {
 

src/ballistica/input/device/test_input.cc

@@ -89,7 +89,9 @@ void TestInput::Process(millisecs_t time) {
           HandleAlreadyPressedTwice();
         } else {
           jump_pressed_ = !jump_pressed_;
-          if (jump_pressed_) join_press_count_++;
+          if (jump_pressed_) {
+            join_press_count_++;
+          }
           e.type = jump_pressed_ ? SDL_JOYBUTTONDOWN : SDL_JOYBUTTONUP;
           e.jbutton.button = 0;
           g_input->PushJoystickEvent(e, joystick_);
@@ -121,7 +123,9 @@ void TestInput::Process(millisecs_t time) {
           HandleAlreadyPressedTwice();
         } else {
           pickup_pressed_ = !pickup_pressed_;
-          if (pickup_pressed_) join_press_count_++;
+          if (pickup_pressed_) {
+            join_press_count_++;
+          }
           e.type = pickup_pressed_ ? SDL_JOYBUTTONDOWN : SDL_JOYBUTTONUP;
           e.jbutton.button = 3;
           g_input->PushJoystickEvent(e, joystick_);
@@ -133,7 +137,9 @@ void TestInput::Process(millisecs_t time) {
           HandleAlreadyPressedTwice();
         } else {
           punch_pressed_ = !punch_pressed_;
-          if (punch_pressed_) join_press_count_++;
+          if (punch_pressed_) {
+            join_press_count_++;
+          }
           e.type = punch_pressed_ ? SDL_JOYBUTTONDOWN : SDL_JOYBUTTONUP;
           e.jbutton.button = 1;
           g_input->PushJoystickEvent(e, joystick_);

src/ballistica/platform/apple/platform_apple.h

@@ -77,7 +77,7 @@ class PlatformApple : public Platform {
   auto DoClipboardHasText() -> bool override;
   auto DoClipboardSetText(const std::string& text) -> void override;
   auto DoClipboardGetText() -> std::string override;
-  auto GetPublicDeviceUUIDInputs() -> std::list<std::string> override;
+  auto GetDeviceUUIDInputs() -> std::list<std::string> override;
 
  private:
 };

src/ballistica/platform/linux/platform_linux.cc

@@ -29,7 +29,7 @@ std::string PlatformLinux::GenerateUUID() {
   return val;
 }
 
-auto PlatformLinux::GetPublicDeviceUUIDInputs() -> std::list<std::string> {
+auto PlatformLinux::GetDeviceUUIDInputs() -> std::list<std::string> {
   std::list<std::string> out;
 
   // For now let's just go with machine-id.

src/ballistica/platform/linux/platform_linux.h

@@ -21,7 +21,7 @@ class PlatformLinux : public Platform {
   auto OpenDirExternally(const std::string& path) -> void override;
   auto GetPlatformName() -> std::string override;
   auto GetSubplatformName() -> std::string override;
-  auto GetPublicDeviceUUIDInputs() -> std::list<std::string> override;
+  auto GetDeviceUUIDInputs() -> std::list<std::string> override;
 };
 
 }  // namespace ballistica

src/ballistica/platform/platform.cc

@@ -184,17 +184,13 @@ auto Platform::GenerateUUID() -> std::string {
 auto Platform::GetPublicDeviceUUID() -> std::string {
   assert(g_python);
   if (public_device_uuid_.empty()) {
-    std::list<std::string> inputs{GetPublicDeviceUUIDInputs()};
+    std::list<std::string> inputs{GetDeviceUUIDInputs()};
 
     // This UUID is supposed to change periodically, so let's plug in
     // some stuff to enforce that.
     inputs.emplace_back(GetOSVersionString());
     inputs.emplace_back(kAppVersion);
     inputs.emplace_back("kerploople");
-    // int i{};
-    // for (auto&& input : inputs) {
-    //   printf("INPUT %d IS %s\n", i + 1, input.c_str());
-    // }
     auto gil{Python::ScopedInterpreterLock()};
     auto pylist{g_python->StringList(inputs)};
     auto args{g_python->SingleMemberTuple(pylist)};
@@ -205,8 +201,8 @@ auto Platform::GetPublicDeviceUUID() -> std::string {
   return public_device_uuid_;
 }
 
-auto Platform::GetPublicDeviceUUIDInputs() -> std::list<std::string> {
+auto Platform::GetDeviceUUIDInputs() -> std::list<std::string> {
-  throw Exception("GetPublicDeviceUUIDInputs unimplemented");
+  throw Exception("GetDeviceUUIDInputs unimplemented");
 }
 
 auto Platform::GetDefaultConfigDir() -> std::string {
@@ -860,7 +856,7 @@ auto Platform::GetUserAgentString() -> std::string {
                   + "; " + GetLocale() + ")"};
 
   // This gets shipped to various places which might choke on fancy unicode
-  // characers, so let's limit to simple ascii.
+  // characters, so let's limit to simple ascii.
   out = Utils::StripNonAsciiFromUTF8(out);
 
   return out;

src/ballistica/platform/platform.h

@@ -186,13 +186,12 @@ class Platform {
   /// server bans or spam prevention.
   auto GetPublicDeviceUUID() -> std::string;
 
-  /// Return values which will be hashed to create a public device uuid.
+  /// Return values which can be hashed to create a public device uuid.
-  /// These values may include things that may change periodically such
+  /// Ideally these values should come from an OS-provided guid. They
-  /// as minor os version numbers, but they should not include things
+  /// should not include anything that is easily user-changeable.
-  /// that change constantly or that can be changed easily by the user.
+  /// IMPORTANT: Only hashed/transformed versions of these values should
-  /// Only hashed versions of these values should ever be shared beyond
+  /// ever be shared beyond the local device.
-  /// the local device.
+  virtual auto GetDeviceUUIDInputs() -> std::list<std::string>;
-  virtual auto GetPublicDeviceUUIDInputs() -> std::list<std::string>;
 
   /// Return whether there is an actual legacy-device-uuid value for
   /// this platform, and also return it if so.

src/ballistica/platform/windows/platform_windows.cc

@@ -127,7 +127,7 @@ void PlatformWindows::SetupInterruptHandling() {
   }
 }
 
-auto PlatformWindows::GetPublicDeviceUUIDInputs() -> std::list<std::string> {
+auto PlatformWindows::GetDeviceUUIDInputs() -> std::list<std::string> {
   std::list<std::string> out;
 
   std::string ret;

src/ballistica/platform/windows/platform_windows.h

@@ -16,7 +16,7 @@ class PlatformWindows : public Platform {
   PlatformWindows();
   void SetupInterruptHandling() override;
   auto GetDeviceAccountUUIDPrefix() -> std::string override { return "w"; }
-  auto GetPublicDeviceUUIDInputs() -> std::list<std::string> override;
+  auto GetDeviceUUIDInputs() -> std::list<std::string> override;
   auto GenerateUUID() -> std::string override;
   auto GetDefaultConfigDir() -> std::string override;
   auto Remove(const char* path) -> int;

tests/test_efro/test_dataclassio.py

@@ -873,3 +873,84 @@ def test_extended_data() -> None:
 
     # Uses our output filter.
     assert dataclass_to_dict(_TestClass2(vals=(1, 2))) == {'vals': [0, 0]}
+
+
+def test_soft_default() -> None:
+    """Test soft_default IOAttr value."""
+
+    # Try both of these with and without storage_name to make sure
+    # soft_default interacts correctly with both cases.
+
+    @ioprepped
+    @dataclass
+    class _TestClassA:
+        ival: int
+
+    @ioprepped
+    @dataclass
+    class _TestClassA2:
+        ival: Annotated[int, IOAttrs('i')]
+
+    @ioprepped
+    @dataclass
+    class _TestClassB:
+        ival: Annotated[int, IOAttrs(soft_default=0)]
+
+    @ioprepped
+    @dataclass
+    class _TestClassB2:
+        ival: Annotated[int, IOAttrs('i', soft_default=0)]
+
+    @ioprepped
+    @dataclass
+    class _TestClassB3:
+        ival: Annotated[int, IOAttrs('i', soft_default_factory=lambda: 0)]
+
+    # These should fail because there's no value for ival.
+    with pytest.raises(ValueError):
+        dataclass_from_dict(_TestClassA, {})
+
+    with pytest.raises(ValueError):
+        dataclass_from_dict(_TestClassA2, {})
+
+    # These should succeed because it has a soft-default value to
+    # fall back on.
+    dataclass_from_dict(_TestClassB, {})
+    dataclass_from_dict(_TestClassB2, {})
+    dataclass_from_dict(_TestClassB3, {})
+
+    # soft_default should also allow using store_default=False without
+    # requiring the dataclass to contain a default or default_factory
+
+    @ioprepped
+    @dataclass
+    class _TestClassC:
+        ival: Annotated[int, IOAttrs(store_default=False)] = 0
+
+    assert dataclass_to_dict(_TestClassC()) == {}
+
+    # This should fail since store_default would be meaningless without
+    # any source for the default value.
+    with pytest.raises(TypeError):
+
+        @ioprepped
+        @dataclass
+        class _TestClassC2:
+            ival: Annotated[int, IOAttrs(store_default=False)]
+
+    # However with our shiny soft_default it should work.
+    @ioprepped
+    @dataclass
+    class _TestClassC3:
+        ival: Annotated[int, IOAttrs(store_default=False, soft_default=0)]
+
+    assert dataclass_to_dict(_TestClassC3(0)) == {}
+
+    # we should disallow passing a few mutable types as soft_defaults
+    # just as dataclass does with regular defaults.
+    with pytest.raises(TypeError):
+
+        @ioprepped
+        @dataclass
+        class _TestClassD:
+            lval: Annotated[list, IOAttrs(soft_default=[])]

tools/efro/dataclassio/_base.py

@@ -13,7 +13,7 @@ from typing import TYPE_CHECKING, get_args
 from typing import _AnnotatedAlias  # type: ignore
 
 if TYPE_CHECKING:
-    from typing import Any, Optional
+    from typing import Any, Optional, Callable, Union
 
 # Types which we can pass through as-is.
 SIMPLE_TYPES = {int, bool, str, float, type(None)}
@@ -96,18 +96,50 @@ def _is_valid_for_codec(obj: Any, codec: Codec) -> bool:
 
 
 class IOAttrs:
-    """For specifying io behavior in annotations."""
+    """For specifying io behavior in annotations.
+
+    'storagename', if passed, is the name used when storing to json/etc.
+    'store_default' can be set to False to avoid writing values when equal
+        to the default value. Note that this requires the dataclass field
+        to define a default or default_factory or for its IOAttrs to
+        define a soft_default value.
+    'whole_days', if True, requires datetime values to be exactly on day
+        boundaries (see efro.util.utc_today()).
+    'whole_hours', if True, requires datetime values to lie exactly on hour
+        boundaries (see efro.util.utc_this_hour()).
+    'soft_default', if passed, is used as a default for loading and storing
+        purposes, but leaves the dataclass itself expecting a value to
+        be passed in all constructor calls/etc. This is useful when fields
+        are added that should not be considered optional in new code but for
+        which there may exist old data that does not contain those values.
+    'soft_default_factory' should be given instead of 'soft_default' for
+        mutable types such as lists (to prevent the default from changing
+        over time).
+    """
+
+    # A sentinel object to detect if a parameter is supplied or not.  Use
+    # a class to give it a better repr.
+    class _MissingType:
+        pass
+
+    MISSING = _MissingType()
 
     storagename: Optional[str] = None
     store_default: bool = True
     whole_days: bool = False
     whole_hours: bool = False
+    soft_default: Any = MISSING
+    soft_default_factory: Union[Callable[[], Any], _MissingType] = MISSING
 
-    def __init__(self,
+    def __init__(
-                 storagename: Optional[str] = storagename,
+        self,
-                 store_default: bool = store_default,
+        storagename: Optional[str] = storagename,
-                 whole_days: bool = whole_days,
+        store_default: bool = store_default,
-                 whole_hours: bool = whole_hours):
+        whole_days: bool = whole_days,
+        whole_hours: bool = whole_hours,
+        soft_default: Any = MISSING,
+        soft_default_factory: Union[Callable[[], Any], _MissingType] = MISSING,
+    ):
 
         # Only store values that differ from class defaults to keep
         # our instances nice and lean.
@@ -120,18 +152,34 @@ class IOAttrs:
             self.whole_days = whole_days
         if whole_hours != cls.whole_hours:
             self.whole_hours = whole_hours
+        if soft_default is not cls.soft_default:
+
+            # Do what dataclasses does with its default types and
+            # tell the user to use factory for mutable ones.
+            if isinstance(soft_default, (list, dict, set)):
+                raise ValueError(
+                    f'mutable {type(soft_default)} is not allowed'
+                    f' for soft_default; use soft_default_factory.')
+            self.soft_default = soft_default
+        if soft_default_factory is not cls.soft_default_factory:
+            self.soft_default_factory = soft_default_factory
 
     def validate_for_field(self, cls: type, field: dataclasses.Field) -> None:
         """Ensure the IOAttrs instance is ok to use with the provided field."""
 
         # Turning off store_default requires the field to have either
-        # a default_factory or a default
+        # a default or a a default_factory or for us to have soft equivalents.
+
         if not self.store_default:
-            default_factory: Any = field.default_factory
+            field_default_factory: Any = field.default_factory
-            if (default_factory is dataclasses.MISSING
+            if (field_default_factory is dataclasses.MISSING
-                    and field.default is dataclasses.MISSING):
+                    and field.default is dataclasses.MISSING
+                    and self.soft_default is self.MISSING
+                    and self.soft_default_factory is self.MISSING):
                 raise TypeError(f'Field {field.name} of {cls} has'
-                                f' neither a default nor a default_factory;'
+                                f' neither a default nor a default_factory'
+                                f' and IOAttrs contains neither a soft_default'
+                                f' nor a soft_default_factory;'
                                 f' store_default=False cannot be set for it.')
 
     def validate_datetime(self, value: datetime.datetime,

tools/efro/dataclassio/_inputter.py

@@ -158,6 +158,7 @@ class _Inputter(Generic[T]):
         associated values, and nested dataclasses should be passed as dicts.
         """
         # pylint: disable=too-many-locals
+        # pylint: disable=too-many-branches
         if not isinstance(values, dict):
             raise TypeError(
                 f'Expected a dict for {fieldpath} on {cls.__name__};'
@@ -172,6 +173,16 @@ class _Inputter(Generic[T]):
         # noinspection PyDataclass
         fields = dataclasses.fields(cls)
         fields_by_name = {f.name: f for f in fields}
+
+        # Preprocess all fields to convert Annotated[] to contained types
+        # and IOAttrs.
+        parsed_field_annotations = {
+            f.name: _parse_annotated(prep.annotations[f.name])
+            for f in fields
+        }
+
+        # Go through all data in the input, converting it to either dataclass
+        # args or extra data.
         args: dict[str, Any] = {}
         for rawkey, value in values.items():
             key = prep.storage_names_to_attr_names.get(rawkey, rawkey)
@@ -197,18 +208,32 @@ class _Inputter(Generic[T]):
                         f"'{cls.__name__}' has no '{key}' field.")
             else:
                 fieldname = field.name
-                anntype = prep.annotations[fieldname]
+                anntype, ioattrs = parsed_field_annotations[fieldname]
-                anntype, ioattrs = _parse_annotated(anntype)
-
                 subfieldpath = (f'{fieldpath}.{fieldname}'
                                 if fieldpath else fieldname)
                 args[key] = self._value_from_input(cls, subfieldpath, anntype,
                                                    value, ioattrs)
+
+        # Go through all fields looking for any not yet present in our data.
+        # If we find any such fields with a soft-default value or factory
+        # defined, inject that value into our args.
+        for key, aparsed in parsed_field_annotations.items():
+            if key not in args:
+                ioattrs = aparsed[1]
+                if (ioattrs is not None and
+                    (ioattrs.soft_default is not ioattrs.MISSING
+                     or ioattrs.soft_default_factory is not ioattrs.MISSING)):
+                    if ioattrs.soft_default is not ioattrs.MISSING:
+                        args[key] = ioattrs.soft_default
+                    else:
+                        assert callable(ioattrs.soft_default_factory)
+                        args[key] = ioattrs.soft_default_factory()
+
         try:
             out = cls(**args)
         except Exception as exc:
-            raise RuntimeError(f'Error instantiating class {cls.__name__}'
+            raise ValueError(f'Error instantiating class {cls.__name__}'
-                               f' at {fieldpath}: {exc}') from exc
+                             f' at {fieldpath}: {exc}') from exc
         if extra_attrs:
             setattr(out, EXTRA_ATTRS_ATTR, extra_attrs)
         return out

tools/efro/dataclassio/_outputter.py

@@ -68,18 +68,25 @@ class _Outputter:
             # we can skip all output processing if we've got a default value.
             if ioattrs is not None and not ioattrs.store_default:
                 default_factory: Any = field.default_factory
-                if default_factory is not dataclasses.MISSING:
+                if field.default is not dataclasses.MISSING:
+                    if field.default == value:
+                        continue
+                elif default_factory is not dataclasses.MISSING:
                     if default_factory() == value:
                         continue
-                elif field.default is not dataclasses.MISSING:
+                elif ioattrs.soft_default is not ioattrs.MISSING:
-                    if field.default == value:
+                    if ioattrs.soft_default == value:
+                        continue
+                elif ioattrs.soft_default_factory is not ioattrs.MISSING:
+                    assert callable(ioattrs.soft_default_factory)
+                    if ioattrs.soft_default_factory() == value:
                         continue
                 else:
                     raise RuntimeError(
                         f'Field {fieldname} of {cls.__name__} has'
-                        f' neither a default nor a default_factory;'
+                        f' no source of default values; store_default=False'
-                        f' store_default=False cannot be set for it.'
+                        f' cannot be set for it. (AND THIS SHOULD HAVE BEEN'
-                        f' (AND THIS SHOULD HAVE BEEN CAUGHT IN PREP!)')
+                        f' CAUGHT IN PREP!)')
 
             outvalue = self._process_value(cls, subfieldpath, anntype, value,
                                            ioattrs)

tools/efro/rpc.py

@@ -316,10 +316,6 @@ class RPCEndpoint:
             self._debug_print_call(
                 f'{self._label}: tasks finished; waiting for writer close...')
 
-        # At this point we shouldn't touch our tasks anymore.
-        # Clearing them out allows us to go down
-        # del self._tasks
-
         # Now wait for our writer to finish going down.
         # When we close our writer it generally triggers errors
         # in our current blocked read/writes. However that same
@@ -328,7 +324,18 @@ class RPCEndpoint:
         # So let's silently ignore it when that happens.
         assert self._writer.is_closing()
         try:
-            await self._writer.wait_closed()
+            # It seems that as of Python 3.9.x it is possible for this to hang
+            # indefinitely. See https://github.com/python/cpython/issues/83939
+            # It sounds like this should be fixed in 3.11 but for now just
+            # forcing the issue with a timeout here.
+            await asyncio.wait_for(self._writer.wait_closed(), timeout=10.0)
+        except asyncio.TimeoutError:
+            logging.info('Timeout on _writer.wait_closed() for %s.',
+                         self._label)
+            if self._debug_print:
+                self._debug_print_call(
+                    f'{self._label}: got timeout in _writer.wait_closed();'
+                    ' This should be fixed in future Python versions.')
         except Exception as exc:
             if not self._is_expected_connection_error(exc):
                 logging.exception('Error closing _writer for %s.', self._label)