From 15740faf9fe9fe4be08965098bbf2947e096aeeb Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 14 Aug 2019 22:50:43 +0800
Subject: +Unity Runtime code

---
 Runtime/Utilities/StaticAssert.h | 55 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Runtime/Utilities/StaticAssert.h

(limited to 'Runtime/Utilities/StaticAssert.h')

diff --git a/Runtime/Utilities/StaticAssert.h b/Runtime/Utilities/StaticAssert.h
new file mode 100644
index 0000000..874b526
--- /dev/null
+++ b/Runtime/Utilities/StaticAssert.h
@@ -0,0 +1,55 @@
+#pragma once
+#include "Configuration/UnityConfigure.h"
+#include "Runtime/Utilities/TypeUtilities.h"
+
+#ifndef SUPPORT_CPP0X_STATIC_ASSERT
+    #if (defined _MSC_VER) && (_MSC_VER >= 1600)
+        #define SUPPORT_CPP0X_STATIC_ASSERT 1
+    #elif (defined  __has_extension)
+        #define SUPPORT_CPP0X_STATIC_ASSERT __has_extension(cxx_static_assert)
+    #else
+        #define SUPPORT_CPP0X_STATIC_ASSERT 0
+    #endif
+#endif
+
+#if SUPPORT_CPP0X_STATIC_ASSERT
+    #define CompileTimeAssert(expression, message) static_assert(expression, message)
+#else
+    template<bool>  struct CompileTimeAssertImpl;
+    template<>      struct CompileTimeAssertImpl<true> {};
+
+    #define CT_ASSERT_HACK_JOIN(X,Y) CT_ASSERT_HACK_DO_JOIN(X,Y)
+    #define CT_ASSERT_HACK_DO_JOIN(X,Y) CT_ASSERT_HACK_DO_JOIN2(X,Y)
+    #define CT_ASSERT_HACK_DO_JOIN2(X,Y) X##Y
+
+    #define CompileTimeAssert(expression, message)                                                      \
+        enum{ CT_ASSERT_HACK_JOIN(ct_assert_, __LINE__) = sizeof(CompileTimeAssertImpl<(expression)>) }
+#endif
+
+
+#ifndef SUPPORT_CPP0X_DECLTYPE
+    #if (defined _MSC_VER) && (_MSC_VER >= 1600)
+        #define SUPPORT_CPP0X_DECLTYPE 1
+    #elif (defined  __has_extension)
+        #define SUPPORT_CPP0X_DECLTYPE __has_extension(cxx_decltype)
+    #else
+        #define SUPPORT_CPP0X_DECLTYPE 0
+    #endif
+#endif
+
+
+#if SUPPORT_CPP0X_STATIC_ASSERT && SUPPORT_CPP0X_DECLTYPE
+    /// Usage Example:
+    /// int a;
+    /// double b;
+    /// AssertVariableType(a, int); // OK
+    /// AssertVariableType(b, int); // Error during compile time
+    /// AssertIfVariableType(a, int); // Error during compile time
+    /// AssertIfVariableType(b, int); // OK
+
+    #define AssertVariableType(Variable, Type)      CompileTimeAssert(IsSameType<Type,decltype(Variable)>::result, #Variable" is not of type "#Type)
+    #define AssertIfVariableType(Variable, Type)    CompileTimeAssert(!IsSameType<Type,decltype(Variable)>::result, #Variable" is of type "#Type)
+#else
+    #define AssertVariableType(Variable, Type)      do { (void)sizeof(Variable); } while(0)
+    #define AssertIfVariableType(Variable, Type)    do { (void)sizeof(Variable); } while(0)
+#endif
-- 
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