From 6498d90f1be9564e75d34d94d61374fb98b7c01c Mon Sep 17 00:00:00 2001
From: take_cheeze <takechi101010@gmail.com>
Date: Mon, 25 May 2015 21:19:24 +0900
Subject: Move "src/mrb_throw.h" to "include/mruby/throw.h". Related to #2760.

---
 include/mruby/throw.h | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 include/mruby/throw.h

(limited to 'include')

diff --git a/include/mruby/throw.h b/include/mruby/throw.h
new file mode 100644
index 000000000..7f720d512
--- /dev/null
+++ b/include/mruby/throw.h
@@ -0,0 +1,41 @@
+/*
+** mruby/throw.h - mruby exception throwing handler
+**
+** See Copyright Notice in mruby.h
+*/
+
+#ifndef MRB_THROW_H
+#define MRB_THROW_H
+
+#ifdef MRB_ENABLE_CXX_EXCEPTION
+
+#define MRB_TRY(buf) do { try {
+#define MRB_CATCH(buf) } catch(mrb_jmpbuf_impl e) { if (e != (buf)->impl) { throw e; }
+#define MRB_END_EXC(buf)  } } while(0)
+
+#define MRB_THROW(buf) throw((buf)->impl)
+typedef mrb_int mrb_jmpbuf_impl;
+
+#else
+
+#include <setjmp.h>
+
+#define MRB_TRY(buf) do { if (setjmp((buf)->impl) == 0) {
+#define MRB_CATCH(buf) } else {
+#define MRB_END_EXC(buf) } } while(0)
+
+#define MRB_THROW(buf) longjmp((buf)->impl, 1);
+#define mrb_jmpbuf_impl jmp_buf
+
+#endif
+
+struct mrb_jmpbuf {
+  mrb_jmpbuf_impl impl;
+
+#ifdef MRB_ENABLE_CXX_EXCEPTION
+  static mrb_int jmpbuf_id;
+  mrb_jmpbuf() : impl(jmpbuf_id++) {}
+#endif
+};
+
+#endif  /* MRB_THROW_H */
-- 
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