[PATCH] D53719: [clang-tidy] UppercaseLiteralSuffixCheck: bugfix: don't cripple substNonTypeTemplateParmExpr

[Roman Lebedev via Phabricator via cfe-commits]

lebedev.ri created this revision.
lebedev.ri added reviewers: JonasToth, aaron.ballman, alexfh, hokein, xazax.hun.
lebedev.ri added a project: clang-tools-extra.
Herald added subscribers: chrib, rnkovacs, kristof.beyls.

The previous, clearly broken output:

  /tmp/test.cpp:4:17: warning: integer literal has suffix 'lignment', which is not uppercase [hicpp-uppercase-literal-suffix]
    static_assert(alignment, "");
                  ^~~~~~~~~
                   LIGNMENT

https://godbolt.org/z/iyWIrX

Is there some more general way this should be avoided?
Too bad i haven't thought of this/triggered this while developing :/


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D53719

Files:
  clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp
  test/clang-tidy/readability-uppercase-literal-suffix-integer.cpp


Index: test/clang-tidy/readability-uppercase-literal-suffix-integer.cpp
===================================================================
--- test/clang-tidy/readability-uppercase-literal-suffix-integer.cpp
+++ test/clang-tidy/readability-uppercase-literal-suffix-integer.cpp
@@ -243,3 +243,11 @@
 void user_defined_literals() {
   1_ull;
 }
+
+template <unsigned alignment>
+void template_test() {
+  static_assert(alignment, "");
+}
+void actual_template_test() {
+  template_test<4>();
+}
Index: clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp
===================================================================
--- clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp
+++ clang-tidy/readability/UppercaseLiteralSuffixCheck.cpp
@@ -198,7 +198,8 @@
   Finder->addMatcher(
       stmt(allOf(eachOf(integerLiteral().bind(IntegerLiteralCheck::Name),
                         floatLiteral().bind(FloatingLiteralCheck::Name)),
-                 unless(hasParent(userDefinedLiteral())))),
+                 unless(anyOf(hasParent(userDefinedLiteral()),
+                              hasParent(substNonTypeTemplateParmExpr()))))),
       this);
 }
 


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