1 files changed, 69 insertions, 0 deletions
diff --git a/wasm2c/wasm-rt-exceptions.h b/wasm2c/wasm-rt-exceptions.h
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+++ b/wasm2c/wasm-rt-exceptions.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2018 WebAssembly Community Group participants
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WASM_RT_EXCEPTIONS_H_
+#define WASM_RT_EXCEPTIONS_H_
+
+#include "wasm-rt.h"
+
+/**
+ * A tag is represented as an arbitrary pointer.
+ */
+typedef const void* wasm_rt_tag_t;
+
+/**
+ * Set the active exception to given tag, size, and contents.
+ */
+void wasm_rt_load_exception(const wasm_rt_tag_t tag,
+                            uint32_t size,
+                            const void* values);
+
+/**
+ * Throw the active exception.
+ */
+WASM_RT_NO_RETURN void wasm_rt_throw(void);
+
+/**
+ * The type of an unwind target if an exception is thrown and caught.
+ */
+#define WASM_RT_UNWIND_TARGET wasm_rt_jmp_buf
+
+/**
+ * Get the current unwind target if an exception is thrown.
+ */
+WASM_RT_UNWIND_TARGET* wasm_rt_get_unwind_target(void);
+
+/**
+ * Set the unwind target if an exception is thrown.
+ */
+void wasm_rt_set_unwind_target(WASM_RT_UNWIND_TARGET* target);
+
+/**
+ * Tag of the active exception.
+ */
+wasm_rt_tag_t wasm_rt_exception_tag(void);
+
+/**
+ * Size of the active exception.
+ */
+uint32_t wasm_rt_exception_size(void);
+
+/**
+ * Contents of the active exception.
+ */
+void* wasm_rt_exception(void);
+
+#endif