Index: src/core/SkFunction.h |
diff --git a/src/core/SkFunction.h b/src/core/SkFunction.h |
deleted file mode 100644 |
index 429c6f5ade327543e62a92b72296c4809179545e..0000000000000000000000000000000000000000 |
--- a/src/core/SkFunction.h |
+++ /dev/null |
@@ -1,75 +0,0 @@ |
-/* |
- * Copyright 2015 Google Inc. |
- * |
- * Use of this source code is governed by a BSD-style license that can be |
- * found in the LICENSE file. |
- */ |
- |
-#ifndef SkFunction_DEFINED |
-#define SkFunction_DEFINED |
- |
-// TODO: document, more pervasive move support in constructors, small-Fn optimization |
- |
-#include "SkTemplates.h" |
-#include "SkTypes.h" |
- |
-template <typename> class SkFunction; |
- |
-template <typename R, typename... Args> |
-class SkFunction<R(Args...)> { |
-public: |
- SkFunction() {} |
- |
- template <typename Fn> |
- SkFunction(const Fn& fn) : fFunction(SkNEW_ARGS(LambdaImpl<Fn>, (fn))) {} |
- |
- SkFunction(R (*fn)(Args...)) : fFunction(SkNEW_ARGS(FnPtrImpl, (fn))) {} |
- |
- SkFunction(const SkFunction& other) { *this = other; } |
- SkFunction& operator=(const SkFunction& other) { |
- if (this != &other) { |
- fFunction.reset(other.fFunction ? other.fFunction->clone() : nullptr); |
- } |
- return *this; |
- } |
- |
- R operator()(Args... args) const { |
- SkASSERT(fFunction.get()); |
- return fFunction->call(Forward(args)...); |
- } |
- |
-private: |
- // ~= std::forward. This moves its argument if possible, falling back to a copy if not. |
- template <typename T> static T&& Forward(T& v) { return (T&&)v; } |
- |
- struct Interface { |
- virtual ~Interface() {} |
- virtual R call(Args...) const = 0; |
- virtual Interface* clone() const = 0; |
- }; |
- |
- template <typename Fn> |
- class LambdaImpl final : public Interface { |
- public: |
- LambdaImpl(const Fn& fn) : fFn(fn) {} |
- |
- R call(Args... args) const override { return fFn(Forward(args)...); } |
- Interface* clone() const { return SkNEW_ARGS(LambdaImpl<Fn>, (fFn)); } |
- private: |
- Fn fFn; |
- }; |
- |
- class FnPtrImpl final : public Interface { |
- public: |
- FnPtrImpl(R (*fn)(Args...)) : fFn(fn) {} |
- |
- R call(Args... args) const override { return fFn(Forward(args)...); } |
- Interface* clone() const { return SkNEW_ARGS(FnPtrImpl, (fFn)); } |
- private: |
- R (*fFn)(Args...); |
- }; |
- |
- SkAutoTDelete<Interface> fFunction; |
-}; |
- |
-#endif//SkFunction_DEFINED |