48 lines
1.8 KiB
Swift
48 lines
1.8 KiB
Swift
/* Copyright 2018 Mozilla
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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* this file except in compliance with the License. You may obtain a copy of the
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* License at http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License. */
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import Foundation
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import MentatStore
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extension RustError {
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@discardableResult
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public static func unwrap(_ callback: (UnsafeMutablePointer<RustError>) throws -> OpaquePointer?) throws -> OpaquePointer {
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var err = RustError(message: nil)
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guard let result = try callback(&err) else {
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if let message = err.message {
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throw ResultError.error(message: String(destroyingRustString: message))
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}
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throw ResultError.empty
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}
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return result;
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}
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@discardableResult
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public static func tryUnwrap(_ callback: (UnsafeMutablePointer<RustError>) throws -> OpaquePointer?) throws -> OpaquePointer? {
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var err = RustError(message: nil)
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guard let result = try callback(&err) else {
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if let message = err.message {
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throw ResultError.error(message: String(destroyingRustString: message))
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}
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return nil
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}
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return result;
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}
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public static func withErrorCheck(_ callback: (UnsafeMutablePointer<RustError>) throws -> Void) throws {
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var err = RustError(message: nil)
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try callback(&err);
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if let message = err.message {
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throw ResultError.error(message: String(destroyingRustString: message))
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}
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}
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}
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