refactor: pass repository object to arguments instead of pointer

lib/src/commit.dart

@@ -18,13 +18,13 @@ class Commit {
     libgit2.git_libgit2_init();
   }
 
-  /// Initializes a new instance of [Commit] class from provided pointer to [Repository]
-  /// object in memory and pointer to [Oid] object in memory.
+  /// Initializes a new instance of [Commit] class from provided [Repository]
+  /// and [Oid] objects.
   ///
   /// Should be freed with `free()` to release allocated memory.
-  Commit.lookup(Pointer<git_repository> repo, Pointer<git_oid> oid) {
+  Commit.lookup(Repository repo, Oid oid) {
     libgit2.git_libgit2_init();
-    _commitPointer = bindings.lookup(repo, oid);
+    _commitPointer = bindings.lookup(repo.pointer, oid.pointer);
   }
 
   /// Pointer to memory address for allocated commit object.

lib/src/index.dart

@@ -96,13 +96,14 @@ class Index {
     late final Oid oid;
     late final Tree tree;
     if (target is Oid) {
-      tree = Tree.lookup(bindings.owner(_indexPointer), target.pointer);
+      final repo = Repository(bindings.owner(_indexPointer));
+      tree = Tree.lookup(repo, target);
     } else if (target is Tree) {
       tree = target;
     } else if (isValidShaHex(target as String)) {
       final repo = Repository(bindings.owner(_indexPointer));
       oid = Oid.fromSHA(repo, target);
-      tree = Tree.lookup(repo.pointer, oid.pointer);
+      tree = Tree.lookup(repo, oid);
     } else {
       throw ArgumentError.value(
           '$target should be either Oid object, SHA hex string or Tree object');

lib/src/reference.dart

@@ -9,10 +9,13 @@ import 'util.dart';
 
 class References {
   /// Initializes a new instance of the [References] class
-  /// from provided pointer to repository object in memory.
-  References(this._repoPointer);
+  /// from provided [Repository] object.
+  References(Repository repo) {
+    _repoPointer = repo.pointer;
+  }
 
-  final Pointer<git_repository> _repoPointer;
+  /// Pointer to memory address for allocated repository object.
+  late final Pointer<git_repository> _repoPointer;
 
   /// Returns a list of all the references that can be found in a repository.
   ///
@@ -58,14 +61,20 @@ class Reference {
   /// The message for the reflog will be ignored if the reference does not belong in the
   /// standard set (HEAD, branches and remote-tracking branches) and it does not have a reflog.
   Reference.createDirect({
-    required Pointer<git_repository> repo,
+    required Repository repo,
     required String name,
     required Pointer<git_oid> oid,
     required bool force,
     String? logMessage,
   }) {
-    _repoPointer = repo;
-    _refPointer = bindings.createDirect(repo, name, oid, force, logMessage);
+    _repoPointer = repo.pointer;
+    _refPointer = bindings.createDirect(
+      repo.pointer,
+      name,
+      oid,
+      force,
+      logMessage,
+    );
   }
 
   /// Initializes a new instance of the [Reference] class by creating a new symbolic reference.
@@ -91,20 +100,26 @@ class Reference {
   /// The message for the reflog will be ignored if the reference does not belong in the standard
   /// set (HEAD, branches and remote-tracking branches) and it does not have a reflog.
   Reference.createSymbolic({
-    required Pointer<git_repository> repo,
+    required Repository repo,
     required String name,
     required String target,
     required bool force,
     String? logMessage,
   }) {
-    _repoPointer = repo;
-    _refPointer =
-        bindings.createSymbolic(repo, name, target, force, logMessage);
+    _repoPointer = repo.pointer;
+    _refPointer = bindings.createSymbolic(
+      repo.pointer,
+      name,
+      target,
+      force,
+      logMessage,
+    );
   }
 
   /// Pointer to memory address for allocated reference object.
   late Pointer<git_reference> _refPointer;
 
+  /// Pointer to memory address for allocated repository object.
   late final Pointer<git_repository> _repoPointer;
 
   /// Returns the type of the reference.
@@ -138,7 +153,7 @@ class Reference {
     late final Oid oid;
 
     if (isValidShaHex(target)) {
-      final repo = Repository(bindings.owner(_refPointer));
+      final repo = Repository(_repoPointer);
       oid = Oid.fromSHA(repo, target);
     } else {
       final ref = Reference(
@@ -205,7 +220,7 @@ class Reference {
   bool get isTag => bindings.isTag(_refPointer);
 
   /// Returns the repository where a reference resides.
-  Pointer<git_repository> get owner => bindings.owner(_refPointer);
+  Repository get owner => Repository(bindings.owner(_refPointer));
 
   /// Delete an existing reference.
   ///

lib/src/reflog.dart

@@ -14,7 +14,7 @@ class RefLog {
 
     final repo = ref.owner;
     final name = ref.name;
-    _reflogPointer = bindings.read(repo, name);
+    _reflogPointer = bindings.read(repo.pointer, name);
   }
 
   /// Pointer to memory address for allocated reflog object.

lib/src/repository.dart

@@ -238,7 +238,7 @@ class Repository {
   Reference get head => Reference(_repoPointer, bindings.head(_repoPointer));
 
   /// Returns [References] object.
-  References get references => References(_repoPointer);
+  References get references => References(this);
 
   /// Creates a new reference.
   ///
@@ -278,7 +278,7 @@ class Repository {
 
     if (isDirect) {
       return Reference.createDirect(
-        repo: _repoPointer,
+        repo: this,
         name: name,
         oid: oid.pointer,
         force: force,
@@ -286,7 +286,7 @@ class Repository {
       );
     } else {
       return Reference.createSymbolic(
-        repo: _repoPointer,
+        repo: this,
         name: name,
         target: target as String,
         force: force,
@@ -318,6 +318,6 @@ class Repository {
     } else {
       throw ArgumentError.value('$sha is not a valid sha hex string');
     }
-    return Commit.lookup(_repoPointer, oid.pointer);
+    return Commit.lookup(this, oid);
   }
 }

lib/src/tree.dart

@@ -1,6 +1,9 @@
 import 'dart:ffi';
+import 'package:libgit2dart/src/repository.dart';
+
 import 'bindings/libgit2_bindings.dart';
 import 'bindings/tree.dart' as bindings;
+import 'oid.dart';
 import 'util.dart';
 
 class Tree {
@@ -11,12 +14,12 @@ class Tree {
   }
 
   /// Initializes a new instance of [Tree] class from provided
-  /// pointers to repository object and oid object in memory.
+  /// [Repository] and [Oid] objects.
   ///
   /// Should be freed with `free()` to release allocated memory.
-  Tree.lookup(Pointer<git_repository> repo, Pointer<git_oid> id) {
+  Tree.lookup(Repository repo, Oid id) {
     libgit2.git_libgit2_init();
-    _treePointer = bindings.lookup(repo, id);
+    _treePointer = bindings.lookup(repo.pointer, id.pointer);
   }
 
   late final Pointer<git_tree> _treePointer;