Add Windows support. (#2306)

JerryScript-DCO-1.0-Signed-off-by: PKarics karicska@gmail.com
JerryScript-DCO-1.0-Signed-off-by: Yonggang Luo luoyonggang@gmail.com

jerry-core/include/jerryscript-compiler.h

@@ -47,6 +47,24 @@ extern "C"
 
 #endif /* __GNUC__ */
 
+#ifdef _MSC_VER
+
+/*
+ * Compiler-specific macros relevant for Microsoft Visual C/C++ Compiler.
+ */
+#define JERRY_ATTR_DEPRECATED __declspec(deprecated)
+#define JERRY_ATTR_NOINLINE __declspec(noinline)
+#define JERRY_ATTR_NORETURN __declspec(noreturn)
+
+/*
+ * Microsoft Visual C/C++ Compiler doesn't support for VLA, using _alloca
+ * instead.
+ */
+void * __cdecl _alloca (size_t _Size);
+#define JERRY_VLA(type, name, size) type *name = (type *) (_alloca (sizeof (type) * size))
+
+#endif /* _MSC_VER */
+
 /*
  * Default empty definitions for all compiler-specific macros. Define any of
  * these in a guarded block above (e.g., as for GCC) to fine tune compilation
@@ -110,6 +128,10 @@ extern "C"
 #define JERRY_UNLIKELY(x) (x)
 #endif /* !JERRY_UNLIKELY */
 
+#ifndef JERRY_VLA
+#define JERRY_VLA(type, name, size) type name[size]
+#endif /* !JERRY_VLA */
+
 /**
  * @}
  */