openrewrite / openrewrite/rewrite

Parsing issue: TypeArgument `...` is added into whitespace.

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bug
Dominant language
Java
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Merged PRs (30d)
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Description

org.openrewrite.java.tree.MethodDeclarationTest

    @Test
    void typeArguments() {
        rewriteRun(
          java(
            """
              class Test {
                  public <P, R> R foo(P p, String s, String... args) {
                      return null;
                  }
              }
              """
          )
        );
    }

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with org.openrewrite.java.tree.MethodDeclarationTest and its typeArguments() test, then run that test to reproduce the parsing issue. Trace how the example method declaration is parsed and how whitespace is recorded around the type arguments; the issue is done when the TypeArgument ... is no longer added to whitespace.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
compilers
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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