[flang-commits] [flang] [flang][cli] Add diagnostic flags to the CLI (PR #142022)

[Eugene Epshteyn via flang-commits]

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@@ -107,16 +110,16 @@ class LanguageFeatureControl {
     warnAllUsage_ = false;
     warnUsage_.clear();
   }
-
-  bool IsEnabled(LanguageFeature f) const { return !disable_.test(f); }
-  bool ShouldWarn(LanguageFeature f) const {
-    return (warnAllLanguage_ && f != LanguageFeature::OpenMP &&
-               f != LanguageFeature::OpenACC && f != LanguageFeature::CUDA) ||
-        warnLanguage_.test(f);
-  }
-  bool ShouldWarn(UsageWarning w) const {
-    return warnAllUsage_ || warnUsage_.test(w);
+  void DisableAllWarnings() {
+    disableAllWarnings_ = true;
+    DisableAllNonstandardWarnings();
+    DisableAllUsageWarnings();
   }
+  bool applyCLIOption(llvm::StringRef input);
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eugeneepshteyn wrote:

I thought this part of the code intentionally avoided explicit LLVM dependencies?  Perhaps use `std::string_view` instead?   FWIW, `llvm::StringRef` has functionality to convert to/from `std::string_view`.

https://github.com/llvm/llvm-project/pull/142022