Support for Evaluation of CompletionStage and Uni Objects

[gastaldi]

Describe the bug

When adding a CompletableFuture data item to a qute template, eclipse shows an error:

For example: I am adding a CompletableFuture here:

In eclipse Qute editor, I see this error :

If I complete the future in the java code:

The warning goes away, though the code is no longer reactive....

Expected behavior

Use of completablefuture should work the same as just passing data objects.

Actual behavior

No response

How to Reproduce?

No response

Output of uname -a or ver

No response

Output of java -version

openjdk version "17.0.5" 2022-10-18 OpenJDK Runtime Environment Temurin-17.0.5+8 (build 17.0.5+8) OpenJDK 64-Bit Server VM Temurin-17.0.5+8 (build 17.0.5+8, mixed mode, sharing)

GraalVM version (if different from Java)

No response

Quarkus version or git rev

No response

Build tool (ie. output of mvnw --version or gradlew --version)

eclipse

Additional information

Doesn't actually prevent anything from working as it should. Just an annoying eclipse error.

Using eclipse plugin "Quarkus Tools 4.26.0.Final'

Reported by @TonyWeston in https://github.com/quarkusio/quarkus/issues/32103

[jeffmaury]

Adding @angelozerr

[fbricon]

@TonyWeston can you provide a small sample project reproducing this issue please?

[angelozerr]

We need to support https://quarkus.io/guides/qute-reference#evaluation-of-completionstage-and-uni-objects

[angelozerr]

@mkouba in the sample https://quarkus.io/guides/qute-reference#evaluation-of-completionstage-and-uni-objects you speak about object part which can be a CompletionStage, but is it possible to use property or method part with CompletionStage?

[mkouba]

@mkouba in the sample https://quarkus.io/guides/qute-reference#evaluation-of-completionstage-and-uni-objects you speak about object part which can be a CompletionStage, but is it possible to use property or method part with CompletionStage?

Yes. This sentence is crucial: "If a part of an expression resolves to a CompletionStage, the resolution continues once this stage is completed and the next part of the expression (if any) is evaluated against the result of the completed stage."

[angelozerr]

Yes. This sentence is crucial: "If a part of an expression resolves to a CompletionStage, the resolution continues once this stage is completed and the next part of the expression (if any) is evaluated against the result of the completed stage."

Ooops sorry I have not seen that. Thanks for your answer, I covered this usecase too.