Diff: mbed-os/TESTS/mbed_functional/functionpointer/main.cpp

Revision:

0:8fdf9a60065b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/TESTS/mbed_functional/functionpointer/main.cpp	Wed Oct 10 00:33:53 2018 +0000
@@ -0,0 +1,534 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "mbed.h"
+#include "greentea-client/test_env.h"
+#include "unity.h"
+#include "utest.h"
+
+using namespace utest::v1;
+
+
+// static functions
+template <typename T>
+T static_func0()
+{
+    return 0;
+}
+template <typename T>
+T static_func1(T a0)
+{
+    return 0 | a0;
+}
+template <typename T>
+T static_func2(T a0, T a1)
+{
+    return 0 | a0 | a1;
+}
+template <typename T>
+T static_func3(T a0, T a1, T a2)
+{
+    return 0 | a0 | a1 | a2;
+}
+template <typename T>
+T static_func4(T a0, T a1, T a2, T a3)
+{
+    return 0 | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T static_func5(T a0, T a1, T a2, T a3, T a4)
+{
+    return 0 | a0 | a1 | a2 | a3 | a4;
+}
+
+// class functions
+template <typename T>
+struct Thing {
+    T t;
+    Thing() : t(0x80) {}
+
+    T member_func0()
+    {
+        return t;
+    }
+    T member_func1(T a0)
+    {
+        return t | a0;
+    }
+    T member_func2(T a0, T a1)
+    {
+        return t | a0 | a1;
+    }
+    T member_func3(T a0, T a1, T a2)
+    {
+        return t | a0 | a1 | a2;
+    }
+    T member_func4(T a0, T a1, T a2, T a3)
+    {
+        return t | a0 | a1 | a2 | a3;
+    }
+    T member_func5(T a0, T a1, T a2, T a3, T a4)
+    {
+        return t | a0 | a1 | a2 | a3 | a4;
+    }
+
+    T const_member_func0() const
+    {
+        return t;
+    }
+    T const_member_func1(T a0) const
+    {
+        return t | a0;
+    }
+    T const_member_func2(T a0, T a1) const
+    {
+        return t | a0 | a1;
+    }
+    T const_member_func3(T a0, T a1, T a2) const
+    {
+        return t | a0 | a1 | a2;
+    }
+    T const_member_func4(T a0, T a1, T a2, T a3) const
+    {
+        return t | a0 | a1 | a2 | a3;
+    }
+    T const_member_func5(T a0, T a1, T a2, T a3, T a4) const
+    {
+        return t | a0 | a1 | a2 | a3 | a4;
+    }
+
+    T volatile_member_func0() volatile
+    {
+        return t;
+    }
+    T volatile_member_func1(T a0) volatile
+    {
+        return t | a0;
+    }
+    T volatile_member_func2(T a0, T a1) volatile
+    {
+        return t | a0 | a1;
+    }
+    T volatile_member_func3(T a0, T a1, T a2) volatile
+    {
+        return t | a0 | a1 | a2;
+    }
+    T volatile_member_func4(T a0, T a1, T a2, T a3) volatile
+    {
+        return t | a0 | a1 | a2 | a3;
+    }
+    T volatile_member_func5(T a0, T a1, T a2, T a3, T a4) volatile
+    {
+        return t | a0 | a1 | a2 | a3 | a4;
+    }
+
+    T const_volatile_member_func0() const volatile
+    {
+        return t;
+    }
+    T const_volatile_member_func1(T a0) const volatile
+    {
+        return t | a0;
+    }
+    T const_volatile_member_func2(T a0, T a1) const volatile
+    {
+        return t | a0 | a1;
+    }
+    T const_volatile_member_func3(T a0, T a1, T a2) const volatile
+    {
+        return t | a0 | a1 | a2;
+    }
+    T const_volatile_member_func4(T a0, T a1, T a2, T a3) const volatile
+    {
+        return t | a0 | a1 | a2 | a3;
+    }
+    T const_volatile_member_func5(T a0, T a1, T a2, T a3, T a4) const volatile
+    {
+        return t | a0 | a1 | a2 | a3 | a4;
+    }
+};
+
+// bound functions
+template <typename T>
+T bound_func0(Thing<T> *t)
+{
+    return t->t;
+}
+template <typename T>
+T bound_func1(Thing<T> *t, T a0)
+{
+    return t->t | a0;
+}
+template <typename T>
+T bound_func2(Thing<T> *t, T a0, T a1)
+{
+    return t->t | a0 | a1;
+}
+template <typename T>
+T bound_func3(Thing<T> *t, T a0, T a1, T a2)
+{
+    return t->t | a0 | a1 | a2;
+}
+template <typename T>
+T bound_func4(Thing<T> *t, T a0, T a1, T a2, T a3)
+{
+    return t->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T bound_func5(Thing<T> *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return t->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T const_bound_func0(const Thing<T> *t)
+{
+    return t->t;
+}
+template <typename T>
+T const_bound_func1(const Thing<T> *t, T a0)
+{
+    return t->t | a0;
+}
+template <typename T>
+T const_bound_func2(const Thing<T> *t, T a0, T a1)
+{
+    return t->t | a0 | a1;
+}
+template <typename T>
+T const_bound_func3(const Thing<T> *t, T a0, T a1, T a2)
+{
+    return t->t | a0 | a1 | a2;
+}
+template <typename T>
+T const_bound_func4(const Thing<T> *t, T a0, T a1, T a2, T a3)
+{
+    return t->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T const_bound_func5(const Thing<T> *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return t->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T volatile_bound_func0(volatile Thing<T> *t)
+{
+    return t->t;
+}
+template <typename T>
+T volatile_bound_func1(volatile Thing<T> *t, T a0)
+{
+    return t->t | a0;
+}
+template <typename T>
+T volatile_bound_func2(volatile Thing<T> *t, T a0, T a1)
+{
+    return t->t | a0 | a1;
+}
+template <typename T>
+T volatile_bound_func3(volatile Thing<T> *t, T a0, T a1, T a2)
+{
+    return t->t | a0 | a1 | a2;
+}
+template <typename T>
+T volatile_bound_func4(volatile Thing<T> *t, T a0, T a1, T a2, T a3)
+{
+    return t->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T volatile_bound_func5(volatile Thing<T> *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return t->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T const_volatile_bound_func0(const volatile Thing<T> *t)
+{
+    return t->t;
+}
+template <typename T>
+T const_volatile_bound_func1(const volatile Thing<T> *t, T a0)
+{
+    return t->t | a0;
+}
+template <typename T>
+T const_volatile_bound_func2(const volatile Thing<T> *t, T a0, T a1)
+{
+    return t->t | a0 | a1;
+}
+template <typename T>
+T const_volatile_bound_func3(const volatile Thing<T> *t, T a0, T a1, T a2)
+{
+    return t->t | a0 | a1 | a2;
+}
+template <typename T>
+T const_volatile_bound_func4(const volatile Thing<T> *t, T a0, T a1, T a2, T a3)
+{
+    return t->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T const_volatile_bound_func5(const volatile Thing<T> *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return t->t | a0 | a1 | a2 | a3 | a4;
+}
+
+// void functions
+template <typename T>
+T void_func0(void *t)
+{
+    return static_cast<Thing<T>*>(t)->t;
+}
+template <typename T>
+T void_func1(void *t, T a0)
+{
+    return static_cast<Thing<T>*>(t)->t | a0;
+}
+template <typename T>
+T void_func2(void *t, T a0, T a1)
+{
+    return static_cast<Thing<T>*>(t)->t | a0 | a1;
+}
+template <typename T>
+T void_func3(void *t, T a0, T a1, T a2)
+{
+    return static_cast<Thing<T>*>(t)->t | a0 | a1 | a2;
+}
+template <typename T>
+T void_func4(void *t, T a0, T a1, T a2, T a3)
+{
+    return static_cast<Thing<T>*>(t)->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T void_func5(void *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return static_cast<Thing<T>*>(t)->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T const_void_func0(const void *t)
+{
+    return static_cast<const Thing<T>*>(t)->t;
+}
+template <typename T>
+T const_void_func1(const void *t, T a0)
+{
+    return static_cast<const Thing<T>*>(t)->t | a0;
+}
+template <typename T>
+T const_void_func2(const void *t, T a0, T a1)
+{
+    return static_cast<const Thing<T>*>(t)->t | a0 | a1;
+}
+template <typename T>
+T const_void_func3(const void *t, T a0, T a1, T a2)
+{
+    return static_cast<const Thing<T>*>(t)->t | a0 | a1 | a2;
+}
+template <typename T>
+T const_void_func4(const void *t, T a0, T a1, T a2, T a3)
+{
+    return static_cast<const Thing<T>*>(t)->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T const_void_func5(const void *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return static_cast<const Thing<T>*>(t)->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T volatile_void_func0(volatile void *t)
+{
+    return static_cast<volatile Thing<T>*>(t)->t;
+}
+template <typename T>
+T volatile_void_func1(volatile void *t, T a0)
+{
+    return static_cast<volatile Thing<T>*>(t)->t | a0;
+}
+template <typename T>
+T volatile_void_func2(volatile void *t, T a0, T a1)
+{
+    return static_cast<volatile Thing<T>*>(t)->t | a0 | a1;
+}
+template <typename T>
+T volatile_void_func3(volatile void *t, T a0, T a1, T a2)
+{
+    return static_cast<volatile Thing<T>*>(t)->t | a0 | a1 | a2;
+}
+template <typename T>
+T volatile_void_func4(volatile void *t, T a0, T a1, T a2, T a3)
+{
+    return static_cast<volatile Thing<T>*>(t)->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T volatile_void_func5(volatile void *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return static_cast<volatile Thing<T>*>(t)->t | a0 | a1 | a2 | a3 | a4;
+}
+template <typename T>
+T const_volatile_void_func0(const volatile void *t)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t;
+}
+template <typename T>
+T const_volatile_void_func1(const volatile void *t, T a0)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t | a0;
+}
+template <typename T>
+T const_volatile_void_func2(const volatile void *t, T a0, T a1)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t | a0 | a1;
+}
+template <typename T>
+T const_volatile_void_func3(const volatile void *t, T a0, T a1, T a2)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t | a0 | a1 | a2;
+}
+template <typename T>
+T const_volatile_void_func4(const volatile void *t, T a0, T a1, T a2, T a3)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t | a0 | a1 | a2 | a3;
+}
+template <typename T>
+T const_volatile_void_func5(const volatile void *t, T a0, T a1, T a2, T a3, T a4)
+{
+    return static_cast<const volatile Thing<T>*>(t)->t | a0 | a1 | a2 | a3 | a4;
+}
+
+
+// function call and result verification
+template <typename T>
+struct Verifier {
+    static void verify0(Callback<T()> func)
+    {
+        T result = func();
+        TEST_ASSERT_EQUAL(result, 0x00);
+    }
+
+    template <typename O, typename M>
+    static void verify0(O *obj, M method)
+    {
+        Callback<T()> func(obj, method);
+        T result = func();
+        TEST_ASSERT_EQUAL(result, 0x80);
+    }
+
+    static void verify1(Callback<T(T)> func)
+    {
+        T result = func((1 << 0));
+        TEST_ASSERT_EQUAL(result, 0x00 | (1 << 0));
+    }
+
+    template <typename O, typename M>
+    static void verify1(O *obj, M method)
+    {
+        Callback<T(T)> func(obj, method);
+        T result = func((1 << 0));
+        TEST_ASSERT_EQUAL(result, 0x80 | (1 << 0));
+    }
+
+    static void verify2(Callback<T(T, T)> func)
+    {
+        T result = func((1 << 0), (1 << 1));
+        TEST_ASSERT_EQUAL(result, 0x00 | (1 << 0) | (1 << 1));
+    }
+
+    template <typename O, typename M>
+    static void verify2(O *obj, M method)
+    {
+        Callback<T(T, T)> func(obj, method);
+        T result = func((1 << 0), (1 << 1));
+        TEST_ASSERT_EQUAL(result, 0x80 | (1 << 0) | (1 << 1));
+    }
+
+    static void verify3(Callback<T(T, T, T)> func)
+    {
+        T result = func((1 << 0), (1 << 1), (1 << 2));
+        TEST_ASSERT_EQUAL(result, 0x00 | (1 << 0) | (1 << 1) | (1 << 2));
+    }
+
+    template <typename O, typename M>
+    static void verify3(O *obj, M method)
+    {
+        Callback<T(T, T, T)> func(obj, method);
+        T result = func((1 << 0), (1 << 1), (1 << 2));
+        TEST_ASSERT_EQUAL(result, 0x80 | (1 << 0) | (1 << 1) | (1 << 2));
+    }
+
+    static void verify4(Callback<T(T, T, T, T)> func)
+    {
+        T result = func((1 << 0), (1 << 1), (1 << 2), (1 << 3));
+        TEST_ASSERT_EQUAL(result, 0x00 | (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
+    }
+
+    template <typename O, typename M>
+    static void verify4(O *obj, M method)
+    {
+        Callback<T(T, T, T, T)> func(obj, method);
+        T result = func((1 << 0), (1 << 1), (1 << 2), (1 << 3));
+        TEST_ASSERT_EQUAL(result, 0x80 | (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3));
+    }
+
+    static void verify5(Callback<T(T, T, T, T, T)> func)
+    {
+        T result = func((1 << 0), (1 << 1), (1 << 2), (1 << 3), (1 << 4));
+        TEST_ASSERT_EQUAL(result, 0x00 | (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4));
+    }
+
+    template <typename O, typename M>
+    static void verify5(O *obj, M method)
+    {
+        Callback<T(T, T, T, T, T)> func(obj, method);
+        T result = func((1 << 0), (1 << 1), (1 << 2), (1 << 3), (1 << 4));
+        TEST_ASSERT_EQUAL(result, 0x80 | (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 4));
+    }
+};
+
+
+// test dispatch
+template <typename T>
+void test_fparg1()
+{
+    Thing<T> thing;
+    FunctionPointerArg1<T, T> fp(static_func1<T>);
+    Verifier<T>::verify1(fp);
+    Verifier<T>::verify1(fp.get_function());
+}
+
+template <typename T>
+void test_fparg0()
+{
+    Thing<T> thing;
+    FunctionPointerArg1<T, void> fp(static_func0<T>);
+    Verifier<T>::verify0(fp);
+    Verifier<T>::verify0(fp.get_function());
+}
+
+
+// Test setup
+utest::v1::status_t test_setup(const size_t number_of_cases)
+{
+    GREENTEA_SETUP(10, "default_auto");
+    return verbose_test_setup_handler(number_of_cases);
+}
+
+Case cases[] = {
+    Case("Testing FunctionPointerArg1 compatibility", test_fparg1<int>),
+    Case("Testing FunctionPointer compatibility", test_fparg0<int>),
+};
+
+Specification specification(test_setup, cases);
+
+int main()
+{
+    return !Harness::run(specification);
+}