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refactor!: use Finalizer to automatically free allocated memory for objects (#48)

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BREAKING CHANGE: signature change for remote and repository callbacks during repository clone operation.
This commit is contained in:
Aleksey Kulikov 2022-04-28 11:04:48 +03:00 • committed by GitHub
parent 94c40f9a94
commit a3213a88a2
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GPG key ID: 4AEE18F83AFDEB23
103 changed files with 2278 additions and 2595 deletions
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22
lib/src/blob.dart
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@ -7,18 +7,17 @@ import 'package:libgit2dart/src/bindings/libgit2_bindings.dart';
class Blob {
/// Initializes a new instance of [Blob] class from provided pointer to
/// blob object in memory.
///
/// **IMPORTANT**: Should be freed to release allocated memory.
Blob(this._blobPointer);
Blob(this._blobPointer) {
_finalizer.attach(this, _blobPointer, detach: this);
}
/// Lookups a blob object for provided [oid] in a [repo]sitory.
///
/// **IMPORTANT**: Should be freed to release allocated memory.
Blob.lookup({required Repository repo, required Oid oid}) {
_blobPointer = bindings.lookup(
repoPointer: repo.pointer,
oidPointer: oid.pointer,
);
_finalizer.attach(this, _blobPointer, detach: this);
}
late final Pointer<git_blob> _blobPointer;
@ -80,8 +79,6 @@ class Blob {
int get size => bindings.size(_blobPointer);
/// Creates an in-memory copy of a blob.
///
/// **IMPORTANT**: Should be freed to release allocated memory.
Blob duplicate() => Blob(bindings.duplicate(_blobPointer));
/// Returns filtered content of a blob.
@ -114,10 +111,19 @@ class Blob {
}
/// Releases memory allocated for blob object.
void free() => bindings.free(_blobPointer);
void free() {
bindings.free(_blobPointer);
_finalizer.detach(this);
}
@override
String toString() {
return 'Blob{oid: $oid, isBinary: $isBinary, size: $size}';
}
}
// coverage:ignore-start
final _finalizer = Finalizer<Pointer<git_blob>>(
(pointer) => bindings.free(pointer),
);
// coverage:ignore-end