[clang-tools-extra] [clangd] Allow specifying what headers are always included via "" or <> (PR #67749)

[kleines Filmröllchen via cfe-commits]

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@@ -483,6 +483,56 @@ struct FragmentCompiler {
             FullyQualifiedNamespaces.begin(), FullyQualifiedNamespaces.end());
       });
     }
+    auto QuotedFilter = compileHeaderRegexes(F.QuotedHeaders);
+    if (QuotedFilter.has_value()) {
+      Out.Apply.push_back(
+          [QuotedFilter = *QuotedFilter](const Params &, Config &C) {
+            C.Style.QuotedHeaders.emplace_back(QuotedFilter);
+          });
+    }
+    auto AngledFilter = compileHeaderRegexes(F.AngledHeaders);
+    if (AngledFilter.has_value()) {
+      Out.Apply.push_back(
+          [AngledFilter = *AngledFilter](const Params &, Config &C) {
+            C.Style.AngledHeaders.emplace_back(AngledFilter);
+          });
+    }
+  }
+
+  auto compileHeaderRegexes(llvm::ArrayRef<Located<std::string>> HeaderPatterns)
+      -> std::optional<std::function<bool(llvm::StringRef)>> {
+    // TODO: Share this code with Diagnostics.Includes.IgnoreHeader
+#ifdef CLANGD_PATH_CASE_INSENSITIVE
+    static llvm::Regex::RegexFlags Flags = llvm::Regex::IgnoreCase;
+#else
+    static llvm::Regex::RegexFlags Flags = llvm::Regex::NoFlags;
+#endif
+    auto Filters = std::make_shared<std::vector<llvm::Regex>>();
+    for (auto &HeaderPattern : HeaderPatterns) {
+      elog("found angle pattern {0}", *HeaderPattern);
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kleinesfilmroellchen wrote:

Oops, that's not supposed to be there anymore 😅

https://github.com/llvm/llvm-project/pull/67749