1 files changed, 113 insertions, 0 deletions
diff --git a/toolkit/components/extensions/MatchGlob.h b/toolkit/components/extensions/MatchGlob.h
new file mode 100644
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+++ b/toolkit/components/extensions/MatchGlob.h
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_extensions_MatchGlob_h
+#define mozilla_extensions_MatchGlob_h
+
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/dom/MatchGlobBinding.h"
+
+#include "jspubtd.h"
+#include "js/RootingAPI.h"
+
+#include "mozilla/RustRegex.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsISupports.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla {
+namespace extensions {
+
+class MatchPattern;
+
+class MatchGlobCore final {
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MatchGlobCore)
+
+  MatchGlobCore(const nsACString& aGlob, bool aAllowQuestion, bool aIsPathGlob,
+                ErrorResult& aRv);
+
+  bool Matches(const nsACString& aString) const;
+
+  bool IsWildcard() const { return mIsPrefix && mPathLiteral.IsEmpty(); }
+
+  void GetGlob(nsACString& aGlob) const { aGlob = mGlob; }
+
+ private:
+  ~MatchGlobCore() = default;
+
+  // The original glob string that this glob object represents.
+  const nsCString mGlob;
+
+  // The literal path string to match against. If this contains a non-void
+  // value, the glob matches against this exact literal string, rather than
+  // performng a pattern match. If mIsPrefix is true, the literal must appear
+  // at the start of the matched string. If it is false, the the literal must
+  // be exactly equal to the matched string.
+  nsCString mPathLiteral;
+  bool mIsPrefix = false;
+
+  // The regular expression object which is equivalent to this glob pattern.
+  // Used for matching if, and only if, mPathLiteral is non-void.
+  RustRegex mRegExp;
+};
+
+class MatchGlob final : public nsISupports, public nsWrapperCache {
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(MatchGlob)
+
+  static already_AddRefed<MatchGlob> Constructor(dom::GlobalObject& aGlobal,
+                                                 const nsACString& aGlob,
+                                                 bool aAllowQuestion,
+                                                 ErrorResult& aRv);
+
+  explicit MatchGlob(nsISupports* aParent,
+                     already_AddRefed<MatchGlobCore> aCore)
+      : mParent(aParent), mCore(std::move(aCore)) {}
+
+  bool Matches(const nsACString& aString) const {
+    return Core()->Matches(aString);
+  }
+
+  bool IsWildcard() const { return Core()->IsWildcard(); }
+
+  void GetGlob(nsACString& aGlob) const { Core()->GetGlob(aGlob); }
+
+  MatchGlobCore* Core() const { return mCore; }
+
+  nsISupports* GetParentObject() const { return mParent; }
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+ private:
+  ~MatchGlob() = default;
+
+  nsCOMPtr<nsISupports> mParent;
+
+  RefPtr<MatchGlobCore> mCore;
+};
+
+class MatchGlobSet final : public CopyableTArray<RefPtr<MatchGlobCore>> {
+ public:
+  // Note: We can't use the nsTArray constructors directly, since the static
+  // analyzer doesn't handle their MOZ_IMPLICIT annotations correctly.
+  MatchGlobSet() = default;
+  explicit MatchGlobSet(size_type aCapacity) : CopyableTArray(aCapacity) {}
+  explicit MatchGlobSet(const nsTArray& aOther) : CopyableTArray(aOther) {}
+  MOZ_IMPLICIT MatchGlobSet(nsTArray&& aOther)
+      : CopyableTArray(std::move(aOther)) {}
+  MOZ_IMPLICIT MatchGlobSet(std::initializer_list<RefPtr<MatchGlobCore>> aIL)
+      : CopyableTArray(aIL) {}
+
+  bool Matches(const nsACString& aValue) const;
+};
+
+}  // namespace extensions
+}  // namespace mozilla
+
+#endif  // mozilla_extensions_MatchGlob_h