Gabriel B. has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/67652?usp=email )
Change subject: base: Create a gem5 type_traits.hh header
......................................................................
base: Create a gem5 type_traits.hh header
That header currently contains type traits that derive the class, the
return type and the arguments of a member function from a pointer to
that member function.
Change-Id: I41dd41056f507016219d6111d25c8cb4c2ad3439
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67652
Reviewed-by: Daniel Carvalho <oda...@yahoo.com.br>
Maintainer: Daniel Carvalho <oda...@yahoo.com.br>
Tested-by: kokoro <noreply+kok...@google.com>
---
A src/base/type_traits.hh
1 file changed, 97 insertions(+), 0 deletions(-)
Approvals:
Daniel Carvalho: Looks good to me, approved; Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/base/type_traits.hh b/src/base/type_traits.hh
new file mode 100644
index 0000000..1fec93d
--- /dev/null
+++ b/src/base/type_traits.hh
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2022 Arteris, Inc. and its applicable licensors and
+ * affiliates.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __BASE_TYPETRAITS_HH__
+#define __BASE_TYPETRAITS_HH__
+
+#include <tuple>
+#include <type_traits>
+
+namespace gem5
+{
+
+/*
+ * Type traits that enable inspecting the signature of a member function
based
+ * on a pointer to that function. Specifically, these type traits provide a
+ * class_t, a return_t and a argsTuple_t alias that correspond
respectively to
+ * the class that the function is a member of, the return type of the
member
+ * function and the list of parameters types packed in a tuple. Convenience
+ * Convenience template aliases are also provided.
+ *
+ * Example, assuming "struct Struct {void foo(int, bool);};":
+ * - MemberFunctionClass_t<&Struct::foo> is Struct.
+ * - MemberFunctionReturn_t<&Struct::foo> is void.
+ * - MemberFunctionArgsTuple_t<&Struct::foo> is std::tuple<int, bool>.
+ */
+
+template<typename F>
+struct MemberFunctionSignature;
+template<typename C, typename R, class... A>
+struct MemberFunctionSignature<R(C::*)(A...)>
+{
+ using class_t = C;
+ using return_t = R;
+ using argsTuple_t = std::tuple<A...>;
+};
+template<typename C, typename R, class... A>
+struct MemberFunctionSignature<R(C::*)(A...) const>
+{
+ using class_t = std::add_const_t<C>;
+ using return_t = R;
+ using argsTuple_t = std::tuple<A...>;
+};
+template<typename C, typename R, class... A>
+struct MemberFunctionSignature<R(C::*)(A...) volatile>
+{
+ using class_t = std::add_volatile_t<C>;
+ using return_t = R;
+ using argsTuple_t = std::tuple<A...>;
+};
+template<typename C, typename R, class... A>
+struct MemberFunctionSignature<R(C::*)(A...) const volatile>
+{
+ using class_t = std::add_cv_t<C>;
+ using return_t = R;
+ using argsTuple_t = std::tuple<A...>;
+};
+template<auto F>
+using MemberFunctionClass_t =
+ typename MemberFunctionSignature<decltype(F)>::class_t;
+
+template<auto F>
+using MemberFunctionReturn_t =
+ typename MemberFunctionSignature<decltype(F)>::return_t;
+
+template<auto F>
+using MemberFunctionArgsTuple_t =
+ typename MemberFunctionSignature<decltype(F)>::argsTuple_t;
+
+} // namespace gem5
+
+#endif // __BASE_TYPETRAITS_HH__
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I41dd41056f507016219d6111d25c8cb4c2ad3439
Gerrit-Change-Number: 67652
Gerrit-PatchSet: 4
Gerrit-Owner: Gabriel B. <gabriel.bus...@arteris.com>
Gerrit-Reviewer: Bobby Bruce <bbr...@ucdavis.edu>
Gerrit-Reviewer: Daniel Carvalho <oda...@yahoo.com.br>
Gerrit-Reviewer: Gabriel B. <gabriel.bus...@arteris.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-CC: Jason Lowe-Power <power...@gmail.com>
Gerrit-MessageType: merged
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