[PATCH] D139705: [clang] fix zero-initialization fix-it for variable template

Tomasz KamiƄski via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Mar 23 01:20:40 PDT 2023


tomasz-kaminski-sonarsource added a comment.

As a downstream, we have concerns with this change. From what I saw it breaks the behavior of the fix-it that wants to remove the whole variable definition (including the initializer). For example, I have unused, that I want to remove variable x and unnecessary explicit specialization temp<double:

  template<typename T>
  T temp = 1;
  
  int x  = 10;
  template<> double temp<double> = 1;

Previously, this could be handled (in case of single variable declaration) by simply removing the `var->getSourceRange()` with succeeding coma. However, such code does not work for variable templates (and only for them).

As an alternative, I would suggest introducing an additional function to VarDecl (which could be moved up in the hierarchy), that would report a source range that corresponds to `declarator-id`, i.e. for template variable it would include template arguments.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139705/new/

https://reviews.llvm.org/D139705



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