49 lines
1.8 KiB
Objective-C
49 lines
1.8 KiB
Objective-C
// Copyright 2019 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import "Foundation/Foundation.h"
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#include "mediapipe/framework/port/status.h"
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/// Error domain for absl::Status errors.
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extern NSString *const kGUSGoogleUtilStatusErrorDomain;
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/// Key for the absl::Status wrapper in an NSError's user info dictionary.
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extern NSString *const kGUSGoogleUtilStatusErrorKey;
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/// This just wraps absl::Status into an Objective-C object.
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@interface GUSUtilStatusWrapper : NSObject
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@property(nonatomic) absl::Status status;
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+ (instancetype)wrapStatus:(const absl::Status &)status;
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@end
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/// This category adds methods for generating NSError objects from absl::Status
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/// objects, and vice versa.
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@interface NSError (GUSGoogleUtilStatus)
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/// Generates an NSError representing a absl::Status. Note that NSError always
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/// represents an error, so this should not be called with absl::Status::OK.
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+ (NSError *)gus_errorWithStatus:(const absl::Status &)status;
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/// Returns a absl::Status object representing an NSError. If the NSError was
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/// generated from a absl::Status, the absl::Status returned is identical to
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/// the original. Otherwise, this returns a status with code ::util::error::UNKNOWN
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/// and a message extracted from the NSError.
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@property(nonatomic, readonly) absl::Status gus_status; // NOLINT(identifier-naming)
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@end
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