Support ellipsis metavariables for parameters

[sfc-gh-nsfard]

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I'd like to extract a java method signature (including arguments) into a metavariable.

Describe the solution you'd like
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The ellipsis metavariable can be used in a message and print out all arguments.

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for example, given the following java snippet:

public class ClassA {
  public void func(MyObj obj) {
    obj.writeObj("object");
  }
}

and the following rule:

rules:
- id: blah
  patterns:
    - pattern: (MyObj $OBJ).writeObj(...);
    - pattern-inside: |
        $RT $METHOD($...ARGS) {
          ...
        }
  message: $METHOD($...ARGS)
  languages: [java]
  severity: INFO

I'd like to see the message: func(MyObj obj)

[emjin]

Thanks for filing this report! What priority would you say this issue is to you (high/medium/low)?

[sfc-gh-nsfard]

medium is fine, thanks @emjin