[clang-tools-extra] [clang-tidy] Only expand <inttypes.h> macros in modernize-use-std-format/print (PR #97911)

[Piotr Zegar via cfe-commits]

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@@ -230,6 +241,37 @@ FormatStringConverter::FormatStringConverter(ASTContext *ContextIn,
   finalizeFormatText();
 }
 
+std::optional<StringRef>
+FormatStringConverter::formatStringContainsUnreplaceableMacro(
+    const StringLiteral *FormatExpr, SourceManager &SM, Preprocessor &PP) {
+  for (auto I = FormatExpr->tokloc_begin(), E = FormatExpr->tokloc_end();
+       I != E; ++I) {
+    const SourceLocation &TokenLoc = *I;
+    if (TokenLoc.isMacroID()) {
+      const StringRef MacroName =
+          Lexer::getImmediateMacroName(TokenLoc, SM, PP.getLangOpts());
+
+      // glibc uses __PRI64_PREFIX and __PRIPTR_PREFIX to define the prefixes
+      // for types that change size so we must look for multiple prefixes.
+      if (!MacroName.starts_with("PRI") && !MacroName.starts_with("__PRI"))
+        return MacroName;
+
+      const SourceLocation TokenSpellingLoc = SM.getSpellingLoc(TokenLoc);
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PiotrZSL wrote:

add checking here if location is valid.

https://github.com/llvm/llvm-project/pull/97911