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

[Eugene Epshteyn via flang-commits]

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@@ -127,6 +130,24 @@ class LanguageFeatureControl {
   bool warnAllLanguage_{false};
   UsageWarnings warnUsage_;
   bool warnAllUsage_{false};
+  bool disableAllWarnings_{false};
 };
+
+// Parse a CLI enum option return the enum index and whether it should be
+// enabled (true) or disabled (false). Just exposed for the template below.
+std::optional<std::pair<bool, int>> parseCLIEnumIndex(
+    llvm::StringRef input, std::function<std::optional<int>(Predicate)> find);
+
+template <typename ENUM>
+std::optional<std::pair<bool, ENUM>> parseCLIEnum(
+    llvm::StringRef input, std::function<std::optional<int>(Predicate)> find) {
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eugeneepshteyn wrote:

`std::string_view` would probably work just as well here.

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