Support passing custom annotations to generated code

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#101 opened on Jun 5, 2022 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 30/100

Issue type: Feature
Clarity: Mostly clear
Activity status: Stale
Tech stack: java
Domain: devtools

Research direction

Start by reading PR #2792 and issue #1574 to understand the new AnnotateWith API, then inspect the IntelliJ plugin's existing support for generated annotations. Done means implementing and validating the listed completion and error checks, including target compatibility, duplicate names, value types, and arrays.

Written by the indexing model from the issue text.

Description

feature

With the work in PR https://github.com/mapstruct/mapstruct/pull/2792 being done for https://github.com/mapstruct/mapstruct/issues/1574 it would be good to provide some support for the new API in the IntelliJ plugin as well.

Some things that we should do:

Auto completion support for AnnotateWith.Element#name and error when name does not exist in target enum.
Smart auto completion for AnnotateWith.Element#classes (pick the class type based on the one in the annotation
Auto completion for AnnotateWith.Element#enums and error when enum value does not exist
Annotation cannot annotated the generated class / method (it doesn't have the right target element type)
Error when more than one value type is provided, eg. shorts() and strings()
Error when duplicated AnnotateWith.Element#name (more than one having the same name
Error when value does not match target annotation value type
Error when using array value, but target value is not an array

Dominant language: Java
Stars: 168
Forks: 41
PR merge metrics: No merged PRs in 30d

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