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/*
* 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"
#ifdef __cplusplus
extern "C" {
#endif
/**
* 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);
#ifdef __cplusplus
}
#endif
#endif
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