Intermediate state

2026-01-05 12:40:40 -06:00 · 2016-04-06 10:16:35 +02:00
parent 90d769520c
commit 3e008a2b04
10 changed files with 222 additions and 53 deletions
--- a/test_static_asserts/no_self_compare.cpp
+++ b/test_static_asserts/no_self_compare.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2015-2016, Roland Bock
+ * 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.
+ *
+ * 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 HOLDER 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.
+ */
+
+#include <iostream>
+#include <MockDb.h>
+#include "AssertTables.h"
+#include <sqlpp11/sqlpp11.h>
+
+namespace
+{
+  constexpr auto t = test::TabAllTypes{};
+
+  template <typename T>
+  void print_type_on_error(std::true_type)
+  {
+  }
+
+  template <typename T>
+  void print_type_on_error(std::false_type)
+  {
+    T::_print_me_;
+  }
+
+  template <typename Assert, typename Operand>
+  void static_check_comparison(const Operand& operand)
+  {
+    using CheckResult = sqlpp::check_rhs_comparison_operand_t<Operand, Operand>;
+    using ExpectedCheckResult = std::is_same<CheckResult, Assert>;
+    static_assert(ExpectedCheckResult::value, "Unexpected check result");
+    print_type_on_error<CheckResult>(ExpectedCheckResult{});
+
+    using ReturnType = sqlpp::detail::make_type_set_t<decltype(operand < operand), decltype(operand <= operand),
+                                                      decltype(operand == operand), decltype(operand != operand),
+                                                      decltype(operand >= operand), decltype(operand > operand)>;
+    using ExpectedReturnType =
+        sqlpp::logic::all_t<Assert::value xor
+                            std::is_same<ReturnType, sqlpp::detail::type_set<sqlpp::bad_statement>>::value>;
+    static_assert(ExpectedReturnType::value, "Unexpected return type");
+    print_type_on_error<ReturnType>(ExpectedReturnType{});
+  }
+
+  void disallowed_self_comparison()
+  {
+    // static_check_comparison<sqlpp::assert_comparison_valid_rhs_operand_t>(t.someString);
+  }
+}
+
+int main(int, char* [])
+{
+  t.someString == t.someString;
+  // disallowed_self_comparison();
+}