Initial import

third_party/duktape/duk_exception.h

@@ -0,0 +1,30 @@
+/*
+ *  Exceptions for Duktape internal throws when C++ exceptions are used
+ *  for long control transfers.
+ */
+
+#if !defined(DUK_EXCEPTION_H_INCLUDED)
+#define DUK_EXCEPTION_H_INCLUDED
+
+#if defined(DUK_USE_CPP_EXCEPTIONS)
+/* Internal exception used as a setjmp-longjmp replacement.  User code should
+ * NEVER see or catch this exception, so it doesn't inherit from any base
+ * class which should minimize the chance of user code accidentally catching
+ * the exception.
+ */
+class duk_internal_exception {
+	/* intentionally empty */
+};
+
+/* Fatal error, thrown as a specific C++ exception with C++ exceptions
+ * enabled.  It is unsafe to continue; doing so may cause crashes or memory
+ * leaks.  This is intended to be either uncaught, or caught by user code
+ * aware of the "unsafe to continue" semantics.
+ */
+class duk_fatal_exception : public virtual std::runtime_error {
+ public:
+	duk_fatal_exception(const char *message) : std::runtime_error(message) {}
+};
+#endif
+
+#endif  /* DUK_EXCEPTION_H_INCLUDED */