From d87c9e7da2e87f224c426832f08897269c2e5636 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Tue, 5 Feb 2019 18:39:15 +0000
Subject: Vendor import of clang release_80 branch r353167:
 https://llvm.org/svn/llvm-project/cfe/branches/release_80@353167

---
 lib/Tooling/ArgumentsAdjusters.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'lib/Tooling/ArgumentsAdjusters.cpp')

diff --git a/lib/Tooling/ArgumentsAdjusters.cpp b/lib/Tooling/ArgumentsAdjusters.cpp
index c8e9c167422e8..f5040b8a09d57 100644
--- a/lib/Tooling/ArgumentsAdjusters.cpp
+++ b/lib/Tooling/ArgumentsAdjusters.cpp
@@ -108,5 +108,27 @@ ArgumentsAdjuster combineAdjusters(ArgumentsAdjuster First,
   };
 }
 
+ArgumentsAdjuster getStripPluginsAdjuster() {
+  return [](const CommandLineArguments &Args, StringRef /*unused*/) {
+    CommandLineArguments AdjustedArgs;
+    for (size_t I = 0, E = Args.size(); I != E; I++) {
+      // According to https://clang.llvm.org/docs/ClangPlugins.html
+      // plugin arguments are in the form:
+      // -Xclang {-load, -plugin, -plugin-arg-<plugin-name>, -add-plugin}
+      // -Xclang <arbitrary-argument>
+      if (I + 4 < E && Args[I] == "-Xclang" &&
+          (Args[I + 1] == "-load" || Args[I + 1] == "-plugin" ||
+           llvm::StringRef(Args[I + 1]).startswith("-plugin-arg-") ||
+           Args[I + 1] == "-add-plugin") &&
+          Args[I + 2] == "-Xclang") {
+        I += 3;
+        continue;
+      }
+      AdjustedArgs.push_back(Args[I]);
+    }
+    return AdjustedArgs;
+  };
+}
+
 } // end namespace tooling
 } // end namespace clang
-- 
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