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sh...@google.com <sh...@google.com>
js...@google.com <js...@google.com> #3
Android Gradle Plugin: 8.7.1
Could you try the latest canary, AGP 8.8.0-alpha09
?
ma...@gmail.com <ma...@gmail.com> #4
I just updated to Android Gradle Plugin: 8.7.2 and the bug is fixed.
ma...@gmail.com <ma...@gmail.com> #5
I spoke too soon. The bug appears gone when I use a different computer, but that is only because the lint check is disabled on it. The computer with the false positive is a new cloning of my github project which apparently has the lint check enabled. The AGP 8.8.0-alpha09 plugin will not work on ladybug, and I'm too busy to switch to a canary build of android studio just to fix a false positive lint check, sorry.
ma...@gmail.com <ma...@gmail.com> #6
I just tried running lint on two more of my computers, one which also has a fresh clone of the github project, and one which has an "ancient" (but up to date) clone of the project -- the two computers have very different Settings -> Editor -> Inspections choices. The old clones do not have this lint check anywhere in their choices, whereas new clones do. Very odd indeed. (I have .idea/ in my .gitignore BTW).
js...@google.com <js...@google.com> #7
I understand that it's not trivial to change AGP version; sorry for suggesting that first.
Actually, there is a better way to test: android.experimental.lint.version=8.8.0-alpha09
which will just change the Lint version.
ma...@gmail.com <ma...@gmail.com> #8
I decided it was easier to download Android Studio Ladybug Feature Drop | 2024.2.2 Canary 9 than to figure out how to use a different version of lint (a search of stackoverflow suggests this is impossible for what that is worth). Using AGP 8.8.0-alpha09 and gradle-8.10.2-bin.zip on Canary the same error occurs. It looks like it is caused by the K2 compiler mode, because the Inspections options for this lint check does not appear until you enble K2 mode (nor does the false positive error).
js...@google.com <js...@google.com> #9
Thank you for trying the latest canary version of Studio and AGP, I really appreciate that.
I rather confirmed that, with that canary (AGP 8.8.0-alpha09),
I also tried altering problematic produceState
call with conditional assignment to value
, which also works fine. I tried a similar code pattern on compose runtime ProduceStateDetector
and its tests, but no luck.
Then... my next guess is whether it is from an old compose runtime, assuming this might be a dup of
ma...@gmail.com <ma...@gmail.com> #10
The compose runtime is from the androidx-compose-bom = "2024.10.01", which is 1.7.5, which is the latest stable version according to its webpage. The project uses libs.versions.toml and gradle assures me that all the versions are up to date (for what that is worth - sometimes I have to manually update versions). I enclose the libs.versions.toml the project uses. The project is my copy of the "Crane" sample app which I have verbosely commented and try to keep up to date with the latest libraries and APIs. The source code involved is in my github repo in the Crane project:
The file the false positive is in is:
Crane/app/src/main/java/androidx/compose/samples/crane/details/DetailsActivity.kt
js...@google.com <js...@google.com> #11
Thank you again for sharing all the details!
With the repo, I can reproduce the issue:
$ ./gradlew lint
> Task :app:lintDebug FAILED
Lint found 1 errors, 8 warnings. First failure:
.../Composables/Crane/app/src/main/java/androidx/compose/samples/crane/details/DetailsActivity.kt:243: Error: produceState calls should assign value inside the producer lambda [ProduceStateDoesNotAssignValue from androidx.compose.runtime]
val uiState: DetailsScreenUiState by produceState(
~~~~~~~~~~~~
Explanation for issues of type "ProduceStateDoesNotAssignValue":
produceState returns an observable State using values assigned inside the
producer lambda. If the lambda never assigns (i.e value = foo), then the
State will never change. Make sure to assign a value when the source you
are producing values from changes / emits a new value. For sample usage see
the produceState documentation.
Vendor: Jetpack Compose
Identifier: androidx.compose.runtime
Feedback: https://issuetracker.google.com/issues/new?component=612128
...
FAILURE: Build failed with an exception.
...
which is a build error in CLI. That is indeed a dup of
$ git diff
diff --git a/Crane/gradle/libs.versions.toml b/Crane/gradle/libs.versions.toml
index c3b2e3ca..c488d929 100644
--- a/Crane/gradle/libs.versions.toml
+++ b/Crane/gradle/libs.versions.toml
@@ -4,7 +4,7 @@
#####
[versions]
accompanist = "0.34.0"
-androidGradlePlugin = "8.7.2"
+androidGradlePlugin = "8.8.0-alpha09"
androidx-activity-compose = "1.9.3"
androidx-appcompat = "1.7.0"
androidx-benchmark = "1.3.3"
diff --git a/Crane/gradle/wrapper/gradle-wrapper.properties b/Crane/gradle/wrapper/gradle-wrapper.properties
index 1918a64e..9c74e424 100644
--- a/Crane/gradle/wrapper/gradle-wrapper.properties
+++ b/Crane/gradle/wrapper/gradle-wrapper.properties
@@ -14,6 +14,6 @@
#Sat Nov 2 07:49:36 AM EDT 2024
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-all.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
$ ./gradlew lint
...
BUILD SUCCESSFUL in 1m 51s
31 actionable tasks: 30 executed, 1 from cache
build went well.
However, K2 UAST's IDE path still has an issue on binary resolution for @Composable
. :( That part is a dup of
ma...@gmail.com <ma...@gmail.com> #13
Aha! I see the problem. I always use the "Problems" tool window of the IDE to run lint. When I use "./gradlew lint" I get the same results as you do. Apparently the IDE is running lint wrong, feeding lint mangled code, misinterpreting lint's results, or using cached values from AGP 8.7.2 instead of using 8.8.0-alpha09 values. (But these are just guesses of course.)
tn...@google.com <tn...@google.com> #14
Apparently the IDE is running lint wrong, feeding lint mangled code, misinterpreting lint's results, or using cached values
The issue is the Kotlin compiler front end; when lint within AGP, we have to bundle and invoke our own copy of the Kotlin compiler front end. But when we run inside the IDE, we directly reuse the one from the Kotlin plugin; that way we don't have to re-analyze your code etc, so it's more performant. But that means that lint running in the IDE and lint running from AGP use potentially different versions of the front end.
ma...@gmail.com <ma...@gmail.com> #15
hobby. Let me know if I can be of any help.
On Tue, Nov 5, 2024 at 10:51 AM <buganizer-system@google.com> wrote:
js...@google.com <js...@google.com> #16
Since CLI-side fix is already there, it's relatively easy(?) to port that to IDE-side, and actually ready; see attached screenshot.
Description
####################################################
Please provide all of the following information, otherwise we may not be able to route your bug report.
####################################################
1. Describe the bug or issue that you're seeing.
Lint produces an error for this code:
// The `produceState` API is used as an _alternative_ to model the
// UiState in the ViewModel and expose it in a stream of data.
val uiState: DetailsScreenUiState by produceState(
key1 = viewModel,
initialValue = DetailsScreenUiState(isLoading = true)
) {
val cityDetailsResult: Result<City> = viewModel.cityDetails
value = if (cityDetailsResult is Result.Success<City>) {
DetailsScreenUiState(city = cityDetailsResult.data)
} else {
DetailsScreenUiState(throwError = true)
}
}
But the program runs perfectly well.
2. Attach log files from Android Studio
2A. In the IDE, select the Help..Collect Logs and Diagnostic Data menu option.
2B. Create a diagnostic report and save it to your local computer.
2C. Attach the report to this bug using the Add attachments button.
3. If you know what they are, write the steps to reproduce:
3A. See code excerp above
3B.
3C.
In addition to logs, please attach a screenshot or recording that illustrates the problem.
For more information on how to get your bug routed quickly, see
Build: AI-242.23339.11.2421.12483815, 202410101554
AS: Ladybug | 2024.2.1 Patch 1
AI-242.23339.11.2421.12483815, JRE 21.0.3+-12282718-b509.11x64 JetBrains s.r.o., OS Windows 10(amd64) v10.0 , screens 1920x1080 (100%)
Android Gradle Plugin: 8.7.1
Gradle: 8.9
Gradle JDK: JetBrains Runtime 21.0.3
NDK: from local.properties: (not specified), latest from SDK: (not found)
CMake: from local.properties: (not specified), latest from SDK: (not found), from PATH: (not found)
Source: send_feedback_icon```