From f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Wed, 20 Sep 2023 23:58:58 -0700
Subject: Copy from the PlasticSCM repo, replace vendored glm wtih conan

---
 source/10-common/OpaqueIterator.hpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 source/10-common/OpaqueIterator.hpp

(limited to 'source/10-common/OpaqueIterator.hpp')

diff --git a/source/10-common/OpaqueIterator.hpp b/source/10-common/OpaqueIterator.hpp
new file mode 100644
index 0000000..128cbc6
--- /dev/null
+++ b/source/10-common/OpaqueIterator.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+template <typename T>
+class IOpaqueIterator {
+public:
+	virtual ~IOpaqueIterator() = default;
+	virtual bool HasNext() const = 0;
+	virtual T Next() = 0;
+};
+
+template <typename TContainer>
+class ContainerOpaqueIterator : public IOpaqueIterator<typename TContainer::reference_type> {
+private:
+	typename TContainer::iterator mIter;
+	typename TContainer::const_iterator mEnd;
+
+public:
+	ContainerOpaqueIterator(TContainer& container)
+		: mIter{ container.begin() }
+		, mEnd{ container.end() } {}
+
+	virtual bool HasNext() const override {
+		return mIter != mEnd;
+	}
+
+	virtual typename TContainer::reference_type Next() override {
+		auto result = *mIter;
+		++mIter;
+		return result;
+	}
+};
-- 
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