Add cv-qualifiers to Callback and deprecate combinatorial explody functions

TESTS/mbed_functional/callback/main.cpp

@@ -0,0 +1,351 @@
+#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; }
+
+// const bound functions
+template <typename T>
+T const_func0(const Thing<T> *t) { return t->t; }
+template <typename T>
+T const_func1(const Thing<T> *t, T a0) { return t->t | a0; }
+template <typename T>
+T const_func2(const Thing<T> *t, T a0, T a1) { return t->t | a0 | a1; }
+template <typename T>
+T const_func3(const Thing<T> *t, T a0, T a1, T a2) { return t->t | a0 | a1 | a2; }
+template <typename T>
+T const_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_func5(const Thing<T> *t, T a0, T a1, T a2, T a3, T a4) { return t->t | a0 | a1 | a2 | a3 | a4; }
+
+// volatile bound functions
+template <typename T>
+T volatile_func0(volatile Thing<T> *t) { return t->t; }
+template <typename T>
+T volatile_func1(volatile Thing<T> *t, T a0) { return t->t | a0; }
+template <typename T>
+T volatile_func2(volatile Thing<T> *t, T a0, T a1) { return t->t | a0 | a1; }
+template <typename T>
+T volatile_func3(volatile Thing<T> *t, T a0, T a1, T a2) { return t->t | a0 | a1 | a2; }
+template <typename T>
+T volatile_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_func5(volatile Thing<T> *t, T a0, T a1, T a2, T a3, T a4) { return t->t | a0 | a1 | a2 | a3 | a4; }
+
+// const volatile bound functions
+template <typename T>
+T const_volatile_func0(const volatile Thing<T> *t) { return t->t; }
+template <typename T>
+T const_volatile_func1(const volatile Thing<T> *t, T a0) { return t->t | a0; }
+template <typename T>
+T const_volatile_func2(const volatile Thing<T> *t, T a0, T a1) { return t->t | a0 | a1; }
+template <typename T>
+T const_volatile_func3(const volatile Thing<T> *t, T a0, T a1, T a2) { return t->t | a0 | a1 | a2; }
+template <typename T>
+T const_volatile_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_func5(const volatile Thing<T> *t, T a0, T a1, T a2, T a3, T a4) { return 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_dispatch0() {
+    Thing<T> thing;
+    Verifier<T>::verify0(static_func0<T>);
+    Verifier<T>::verify0(&thing, &Thing<T>::member_func0);
+    Verifier<T>::verify0((const Thing<T>*)&thing, &Thing<T>::const_member_func0);
+    Verifier<T>::verify0((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func0);
+    Verifier<T>::verify0((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func0);
+    Verifier<T>::verify0(&thing, &bound_func0<T>);
+    Verifier<T>::verify0((const Thing<T>*)&thing, &const_func0<T>);
+    Verifier<T>::verify0((volatile Thing<T>*)&thing, &volatile_func0<T>);
+    Verifier<T>::verify0((const volatile Thing<T>*)&thing, &const_volatile_func0<T>);
+    Verifier<T>::verify0(callback(static_func0<T>));
+
+    Callback<T()> cb(static_func0);
+    Verifier<T>::verify0(cb);
+    cb = static_func0;
+    Verifier<T>::verify0(cb);
+    cb.attach(&thing, &bound_func0<T>);
+    Verifier<T>::verify0(&cb, &Callback<T()>::call);
+    Verifier<T>::verify0((void*)&cb, &Callback<T()>::thunk);
+}
+
+template <typename T>
+void test_dispatch1() {
+    Thing<T> thing;
+    Verifier<T>::verify1(static_func1<T>);
+    Verifier<T>::verify1(&thing, &Thing<T>::member_func1);
+    Verifier<T>::verify1((const Thing<T>*)&thing, &Thing<T>::const_member_func1);
+    Verifier<T>::verify1((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func1);
+    Verifier<T>::verify1((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func1);
+    Verifier<T>::verify1(&thing, &bound_func1<T>);
+    Verifier<T>::verify1((const Thing<T>*)&thing, &const_func1<T>);
+    Verifier<T>::verify1((volatile Thing<T>*)&thing, &volatile_func1<T>);
+    Verifier<T>::verify1((const volatile Thing<T>*)&thing, &const_volatile_func1<T>);
+    Verifier<T>::verify1(callback(static_func1<T>));
+
+    Callback<T(T)> cb(static_func1);
+    Verifier<T>::verify1(cb);
+    cb = static_func1;
+    Verifier<T>::verify1(cb);
+    cb.attach(&thing, &bound_func1<T>);
+    Verifier<T>::verify1(&cb, &Callback<T(T)>::call);
+    Verifier<T>::verify1((void*)&cb, &Callback<T(T)>::thunk);
+}
+
+template <typename T>
+void test_dispatch2() {
+    Thing<T> thing;
+    Verifier<T>::verify2(static_func2<T>);
+    Verifier<T>::verify2(&thing, &Thing<T>::member_func2);
+    Verifier<T>::verify2((const Thing<T>*)&thing, &Thing<T>::const_member_func2);
+    Verifier<T>::verify2((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func2);
+    Verifier<T>::verify2((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func2);
+    Verifier<T>::verify2(&thing, &bound_func2<T>);
+    Verifier<T>::verify2((const Thing<T>*)&thing, &const_func2<T>);
+    Verifier<T>::verify2((volatile Thing<T>*)&thing, &volatile_func2<T>);
+    Verifier<T>::verify2((const volatile Thing<T>*)&thing, &const_volatile_func2<T>);
+    Verifier<T>::verify2(callback(static_func2<T>));
+
+    Callback<T(T, T)> cb(static_func2);
+    Verifier<T>::verify2(cb);
+    cb = static_func2;
+    Verifier<T>::verify2(cb);
+    cb.attach(&thing, &bound_func2<T>);
+    Verifier<T>::verify2(&cb, &Callback<T(T, T)>::call);
+    Verifier<T>::verify2((void*)&cb, &Callback<T(T, T)>::thunk);
+}
+
+template <typename T>
+void test_dispatch3() {
+    Thing<T> thing;
+    Verifier<T>::verify3(static_func3<T>);
+    Verifier<T>::verify3(&thing, &Thing<T>::member_func3);
+    Verifier<T>::verify3((const Thing<T>*)&thing, &Thing<T>::const_member_func3);
+    Verifier<T>::verify3((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func3);
+    Verifier<T>::verify3((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func3);
+    Verifier<T>::verify3(&thing, &bound_func3<T>);
+    Verifier<T>::verify3((const Thing<T>*)&thing, &const_func3<T>);
+    Verifier<T>::verify3((volatile Thing<T>*)&thing, &volatile_func3<T>);
+    Verifier<T>::verify3((const volatile Thing<T>*)&thing, &const_volatile_func3<T>);
+    Verifier<T>::verify3(callback(static_func3<T>));
+
+    Callback<T(T, T, T)> cb(static_func3);
+    Verifier<T>::verify3(cb);
+    cb = static_func3;
+    Verifier<T>::verify3(cb);
+    cb.attach(&thing, &bound_func3<T>);
+    Verifier<T>::verify3(&cb, &Callback<T(T, T, T)>::call);
+    Verifier<T>::verify3((void*)&cb, &Callback<T(T, T, T)>::thunk);
+}
+
+template <typename T>
+void test_dispatch4() {
+    Thing<T> thing;
+    Verifier<T>::verify4(static_func4<T>);
+    Verifier<T>::verify4(&thing, &Thing<T>::member_func4);
+    Verifier<T>::verify4((const Thing<T>*)&thing, &Thing<T>::const_member_func4);
+    Verifier<T>::verify4((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func4);
+    Verifier<T>::verify4((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func4);
+    Verifier<T>::verify4(&thing, &bound_func4<T>);
+    Verifier<T>::verify4((const Thing<T>*)&thing, &const_func4<T>);
+    Verifier<T>::verify4((volatile Thing<T>*)&thing, &volatile_func4<T>);
+    Verifier<T>::verify4((const volatile Thing<T>*)&thing, &const_volatile_func4<T>);
+    Verifier<T>::verify4(callback(static_func4<T>));
+
+    Callback<T(T, T, T, T)> cb(static_func4);
+    Verifier<T>::verify4(cb);
+    cb = static_func4;
+    Verifier<T>::verify4(cb);
+    cb.attach(&thing, &bound_func4<T>);
+    Verifier<T>::verify4(&cb, &Callback<T(T, T, T, T)>::call);
+    Verifier<T>::verify4((void*)&cb, &Callback<T(T, T, T, T)>::thunk);
+}
+
+template <typename T>
+void test_dispatch5() {
+    Thing<T> thing;
+    Verifier<T>::verify5(static_func5<T>);
+    Verifier<T>::verify5(&thing, &Thing<T>::member_func5);
+    Verifier<T>::verify5((const Thing<T>*)&thing, &Thing<T>::const_member_func5);
+    Verifier<T>::verify5((volatile Thing<T>*)&thing, &Thing<T>::volatile_member_func5);
+    Verifier<T>::verify5((const volatile Thing<T>*)&thing, &Thing<T>::const_volatile_member_func5);
+    Verifier<T>::verify5(&thing, &bound_func5<T>);
+    Verifier<T>::verify5((const Thing<T>*)&thing, &const_func5<T>);
+    Verifier<T>::verify5((volatile Thing<T>*)&thing, &volatile_func5<T>);
+    Verifier<T>::verify5((const volatile Thing<T>*)&thing, &const_volatile_func5<T>);
+    Verifier<T>::verify5(callback(static_func5<T>));
+
+    Callback<T(T, T, T, T, T)> cb(static_func5);
+    Verifier<T>::verify5(cb);
+    cb = static_func5;
+    Verifier<T>::verify5(cb);
+    cb.attach(&thing, &bound_func5<T>);
+    Verifier<T>::verify5(&cb, &Callback<T(T, T, T, T, T)>::call);
+    Verifier<T>::verify5((void*)&cb, &Callback<T(T, T, T, T, T)>::thunk);
+}
+
+
+// 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 callbacks with 0 ints", test_dispatch0<int>),
+    Case("Testing callbacks with 1 ints", test_dispatch1<int>),
+    Case("Testing callbacks with 2 ints", test_dispatch2<int>),
+    Case("Testing callbacks with 3 ints", test_dispatch3<int>),
+    Case("Testing callbacks with 4 ints", test_dispatch4<int>),
+    Case("Testing callbacks with 5 ints", test_dispatch5<int>),
+};
+
+Specification specification(test_setup, cases);
+
+int main() {
+    return !Harness::run(specification);
+}