/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. */ #[derive(Debug, Fail)] #[fail( display = "Could not downcast `{}` into `{}`", expected_type, actual_type )] pub struct ValueDowncastError { pub actual_type: String, pub expected_type: &'static str, } #[derive(Debug, Fail)] #[fail(display = "Function call `{}` returned error: {}", context, message)] pub struct FuncCallError { context: String, message: String, } impl FuncCallError { pub fn get_with_context(context: String) -> Self { Self { context, message: unsafe { std::ffi::CStr::from_ptr(crate::ffi::TVMGetLastError()) } .to_str() .expect("double fault") .to_owned(), } } }