36 lines
1.1 KiB
Objective-C
36 lines
1.1 KiB
Objective-C
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifndef __GO_REF_HDR__
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#define __GO_REF_HDR__
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#include <Foundation/Foundation.h>
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// GoSeqRef is an object tagged with an integer for passing back and
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// forth across the language boundary. A GoSeqRef may represent either
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// an instance of a Go object, or an Objective-C object passed to Go.
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// The explicit allocation of a GoSeqRef is used to pin a Go object
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// when it is passed to Objective-C. The Go seq package maintains a
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// reference to the Go object in a map keyed by the refnum along with
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// a reference count. When the reference count reaches zero, the Go
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// seq package will clear the corresponding entry in the map.
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@interface GoSeqRef : NSObject {
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}
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@property(readonly) int32_t refnum;
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@property(strong) id obj; // NULL when representing a Go object.
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// new GoSeqRef object to proxy a Go object. The refnum must be
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// provided from Go side.
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- (instancetype)initWithRefnum:(int32_t)refnum obj:(id)obj;
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- (int32_t)incNum;
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@end
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@protocol goSeqRefInterface
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-(GoSeqRef*) _ref;
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@end
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#endif
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