cluster model decoupling - declare the codegen (ember) version and im…

…plement iteration (#33345)

* Initial copy with a clean history

* make linter happy

* Restyle

* Fix typo

* Add nolint: assert will return before we use the underlying value

* 2 more fixes regarding unchecked access

* Switch some asserts to expects, for better test logic

* Model renames

* Add renamed files

* Add some attribute iteration hint

* Make use of the attribute cache

* Restyle

* Add a cluster iteration hint

* Add a few more hints. Ember code still contains loops though, so this may not be ideal still

* Add some TODO items for using faster iterations for data. Ember index vs value duality still needs some work

* Add a cluster type cache as well. This relies on ember being reasonably static

* Add global attribute handling

* Fix typing u16 vs unsigned

* Fix auto-added include names

* Remove back the initialization and make the comment more obvious

* Update src/app/codegen-interaction-model/model.gni

Co-authored-by: Karsten Sperling <[email protected]>

* Code review feedback: added comments

* Update src/app/codegen-interaction-model/CodegenDataModel.h

Co-authored-by: Boris Zbarsky <[email protected]>

* Update src/app/codegen-interaction-model/CodegenDataModel.cpp

Co-authored-by: Boris Zbarsky <[email protected]>

* Update src/app/codegen-interaction-model/BUILD.gn

Co-authored-by: Tennessee Carmel-Veilleux <[email protected]>

* Some cleanup logic for event generation - naming and return values as eventid is not the same as event number

* Comment fix

* More naming updates

* Several comment updates and renamed RequestContext to ActionContext

* Restyle

* Rename to InteractionModelContext

* one more rename

* Fix typo

* Fix tests to compile

* More renames of actions to context

* One more comment added

* Restyle

* Address review comments

* Restyle

* make clang-tidy happy

* Operator== exists on optional ... make use of that directly

* Started renaming things

* Use the right types in Model.h

* Make things compile

* Skip global attribute handling, add TODOs for reading extra bits from ember

* Typo fix

* Several flags and correct loading of privileges for attributes

* Start implementing command iteration ... still feels awkward and caching will be a pain

* We seem to also support fabric scoping detection

* implementation is in theory done, need unit tests

* Fix iterator name

* Mock support for accepted/generated commands, start having unit tests

* Better iteration tests on accepted commands

* More unit tests and fix bugs

* Restyle

* More tests, one iteration bug fix

* Slight update again

* Aiming for more test coverage

* More test coverage for edge cases in iteration

* Fix code review comment

* Restyle

* Update src/app/interaction-model/Events.h

Co-authored-by: Boris Zbarsky <[email protected]>

* Update src/app/interaction-model/IterationTypes.h

Co-authored-by: Boris Zbarsky <[email protected]>

* Update src/app/interaction-model/Paths.h

Co-authored-by: Boris Zbarsky <[email protected]>

* Fix comment about validity

* Some kListBegin/End comment updates

* Drop kListBegin/End alltogether

* Drop groupId

* Comment update

* Update for data version to be mandatory, add more error reporting and logging

* Update to use kInvalid instead of Invalid method

* Update flags.set

* Use IsServerMask on clusterr class

* Use a struct instead of a typedef

* Fix compile without error logging

* Restyle

* Remove command quality that is not supported

* Restyle

* Rename IsServerMask to IsServer

---------

Co-authored-by: Andrei Litvin <[email protected]>
Co-authored-by: Karsten Sperling <[email protected]>
Co-authored-by: Boris Zbarsky <[email protected]>
Co-authored-by: Tennessee Carmel-Veilleux <[email protected]>

src/BUILD.gn

@@ -55,6 +55,7 @@ if (chip_build_tests) {
   chip_test_group("tests") {
     deps = []
     tests = [
+      "${chip_root}/src/app/codegen-interaction-model/tests",
       "${chip_root}/src/app/interaction-model/tests",
       "${chip_root}/src/access/tests",
       "${chip_root}/src/crypto/tests",

src/app/ConcreteClusterPath.h

@@ -52,7 +52,7 @@ struct ConcreteClusterPath
     // to alignment requirements it's "free" in the sense of not needing more
     // memory to put it here.  But we don't initialize it, because that
     // increases codesize for the non-consumers.
-    bool mExpanded; // NOTE: in between larger members
+    bool mExpanded; // NOTE: in between larger members, NOT initialized (see above)
     ClusterId mClusterId = 0;
 };
 

src/app/codegen-interaction-model/BUILD.gn

@@ -0,0 +1,27 @@
+# Copyright (c) 2024 Project CHIP Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import("//build_overrides/chip.gni")
+# This source set is TIGHLY coupled with code-generated data models
+# as generally implemented by `src/app/util`
+#
+# Corresponding functions defined in attribute-storace.cpp/attribute-table.cpp must
+# be available at link time for this model to use
+#
+# Use `model.gni` to get access to:
+#   CodegenDataModel.cpp
+#   CodegenDataModel.h
+#
+# The above list of files exists to satisfy the "dependency linter"
+# since those files should technically be "visible to gn" even though we
+# are supposed to go through model.gni constants