/// <summary>
/// Updates the target of a reference.
/// </summary>
/// <param name = "name">The canonical name of the reference.</param>
/// <param name = "canonicalRefNameOrObjectish">The target which can be either the canonical name of a reference or a revparse spec.</param>
/// <param name = "refsColl">The <see cref="ReferenceCollection"/> being worked with.</param>
/// <param name="logMessage">The optional message to log in the <see cref="ReflogCollection"/> of the <paramref name="name"/> reference.</param>
/// <returns>A new <see cref = "Reference" />.</returns>
public static Reference UpdateTarget(this ReferenceCollection refsColl, string name, string canonicalRefNameOrObjectish, string logMessage = null)
{
Ensure.ArgumentNotNullOrEmptyString(name, "name");
Ensure.ArgumentNotNullOrEmptyString(canonicalRefNameOrObjectish, "canonicalRefNameOrObjectish");
if (name == "HEAD")
{
return refsColl.Add("HEAD", canonicalRefNameOrObjectish, true);
}
Reference reference = refsColl[name];
var directReference = reference as DirectReference;
if (directReference != null)
{
return refsColl.UpdateTarget(directReference, canonicalRefNameOrObjectish, logMessage);
}
var symbolicReference = reference as SymbolicReference;
if (symbolicReference != null)
{
Reference targetRef;
RefState refState = TryResolveReference(out targetRef, refsColl, canonicalRefNameOrObjectish);
if (refState == RefState.DoesNotLookValid)
{
throw new ArgumentException(String.Format(CultureInfo.InvariantCulture, "The reference specified by {0} is a Symbolic reference, you must provide a reference canonical name as the target.", name), "canonicalRefNameOrObjectish");
}
return refsColl.UpdateTarget(symbolicReference, targetRef, logMessage);
}
throw new LibGit2SharpException(string.Format(CultureInfo.InvariantCulture, "Reference '{0}' has an unexpected type ('{1}').", name, reference.GetType()));
}
/// <summary>
/// Creates a direct or symbolic reference with the specified name and target
/// </summary>
/// <param name="name">The name of the reference to create.</param>
/// <param name="canonicalRefNameOrObjectish">The target which can be either the canonical name of a reference or a revparse spec.</param>
/// <param name="logMessage">The optional message to log in the <see cref="ReflogCollection"/> when adding the <see cref="Reference"/></param>
/// <param name="allowOverwrite">True to allow silent overwriting a potentially existing reference, false otherwise.</param>
/// <returns>A new <see cref="Reference"/>.</returns>
public virtual Reference Add(string name, string canonicalRefNameOrObjectish, string logMessage, bool allowOverwrite)
{
Ensure.ArgumentNotNullOrEmptyString(name, "name");
Ensure.ArgumentNotNullOrEmptyString(canonicalRefNameOrObjectish, "canonicalRefNameOrObjectish");
Reference reference;
RefState refState = TryResolveReference(out reference, this, canonicalRefNameOrObjectish);
var gitObject = repo.Lookup(canonicalRefNameOrObjectish, GitObjectType.Any, LookUpOptions.None);
if (refState == RefState.Exists)
{
return(Add(name, reference, logMessage, allowOverwrite));
}
if (refState == RefState.DoesNotExistButLooksValid && gitObject == null)
{
using (ReferenceSafeHandle handle = Proxy.git_reference_symbolic_create(repo.Handle, name, canonicalRefNameOrObjectish, allowOverwrite,
logMessage))
{
return(Reference.BuildFromPtr <Reference>(handle, repo));
}
}
Ensure.GitObjectIsNotNull(gitObject, canonicalRefNameOrObjectish);
if (logMessage == null)
{
logMessage = string.Format(CultureInfo.InvariantCulture, "{0}: Created from {1}",
name.LooksLikeLocalBranch() ? "branch" : "reference", canonicalRefNameOrObjectish);
}
EnsureHasLog(name);
return(Add(name, gitObject.Id, logMessage, allowOverwrite));
}
/// <summary>
/// Creates a direct or symbolic reference with the specified name and target
/// </summary>
/// <param name="name">The name of the reference to create.</param>
/// <param name="canonicalRefNameOrObjectish">The target which can be either the canonical name of a reference or a revparse spec.</param>
/// <param name="allowOverwrite">True to allow silent overwriting a potentially existing reference, false otherwise.</param>
/// <param name="refsColl">The <see cref="ReferenceCollection"/> being worked with.</param>
/// <param name="logMessage">The optional message to log in the <see cref="ReflogCollection"/> when adding the <see cref="Reference"/></param>
/// <returns>A new <see cref="Reference"/>.</returns>
public static Reference Add(this ReferenceCollection refsColl, string name, string canonicalRefNameOrObjectish, bool allowOverwrite = false, string logMessage = null)
{
Ensure.ArgumentNotNullOrEmptyString(name, "name");
Ensure.ArgumentNotNullOrEmptyString(canonicalRefNameOrObjectish, "canonicalRefNameOrObjectish");
Reference reference;
RefState refState = TryResolveReference(out reference, refsColl, canonicalRefNameOrObjectish);
var gitObject = refsColl.repo.Lookup(canonicalRefNameOrObjectish, GitObjectType.Any, LookUpOptions.None);
if (refState == RefState.Exists)
{
return(refsColl.Add(name, reference, allowOverwrite, logMessage));
}
if (refState == RefState.DoesNotExistButLooksValid && gitObject == null)
{
using (ReferenceSafeHandle handle = Proxy.git_reference_symbolic_create(refsColl.repo.Handle, name, canonicalRefNameOrObjectish, allowOverwrite))
{
return(Reference.BuildFromPtr <Reference>(handle, refsColl.repo));
}
}
Ensure.GitObjectIsNotNull(gitObject, canonicalRefNameOrObjectish);
return(refsColl.Add(name, gitObject.Id, allowOverwrite, logMessage));
}
/// <summary>
/// Generates a new reference that can be used within a sync transaction
/// </summary>
internal static Ref <A> NewRef <A>(A value, Func <A, bool> validator = null)
{
var id = Interlocked.Increment(ref refIdNext);
var r = new Ref <A>(id);
var v = new RefState <A>(0, value, validator, r);
state.Add(id, v);
return(r);
}
internal sealed override bool OnTryRead(ref BinaryReader reader, Type typeToConvert, BinarySerializerOptions options, ref ReadStack state, [MaybeNullWhen(false)] out T value)
{
object obj = default;
// Slower path that supports continuation.
if (state.Current.ObjectState == StackFrameObjectState.None)
{
if (!reader.ReadStartToken())
{
value = default;
return(false);
}
RefState refState = BinarySerializer.ReadReferenceForObject(this, ref state, ref reader, out object refValue);
if (refState == RefState.None)
{
state.Current.ObjectState = StackFrameObjectState.StartToken;
BeginRead(ref state, ref reader, options);
}
else if (refState == RefState.Created)
{
state.Current.ObjectState = StackFrameObjectState.CreatedObject;
obj = (T)refValue;
}
else
{
value = default;
return(false);
}
}
// 读取构造参数
if (!ReadCreatorArgumentsWithContinuation(ref state, ref reader, options))
{
value = default;
return(false);
}
if (state.Current.ObjectState < StackFrameObjectState.CreatedObject)
{
obj = CreateObject(ref state.Current);
state.ReferenceResolver.AddReferenceObject(state.Current.RefId, obj);
}
EndRead(ref state);
value = (T)obj;
return(true);
}
protected override object Visit(ExcelReference value)
{
AppendValue("#Ref-" + value.GetRange() + "=");
var refState = new RefState();
state_.Push(refState);
object visited = base.Visit(value);
state_.Pop();
return(visited);
}
/// <summary>
/// Generates a new reference that can be used within a sync transaction
/// </summary>
internal static Ref <A> NewRef <A>(A value, Func <A, bool> validator = null)
{
var valid = validator == null
? True
: CastPredicate(validator);
var id = Interlocked.Increment(ref refIdNext);
var v = new RefState(0, value, valid);
state.Swap(s => s.Add(id, v));
return(new Ref <A>(id));
}
internal sealed override bool OnTryRead(ref BinaryReader reader, Type typeToConvert, BinarySerializerOptions options, ref ReadStack state, [MaybeNullWhen(false)] out T value)
{
object obj;
ArgumentState argumentState = state.Current.CtorArgumentState !;
if (state.Current.ObjectState == StackFrameObjectState.None)
{
if (!reader.ReadStartToken())
{
value = default;
return(false);
}
RefState refState = BinarySerializer.ReadReferenceForObject(this, ref state, ref reader, out object refValue);
if (refState == RefState.None)
{
state.Current.ObjectState = StackFrameObjectState.StartToken;
BeginRead(ref state, ref reader, options);
// 初始化中可能会修改状态对象
argumentState = state.Current.CtorArgumentState !;
}
else
{
state.Current.ObjectState = StackFrameObjectState.CreatedObject;
state.Current.ReturnValue = refValue;
state.Current.RefState = refState;
}
}
// 读取构造参数
if (!ReadConstructorArgumentsWithContinuation(ref state, ref reader, options))
{
value = default;
return(false);
}
if (state.Current.ObjectState < StackFrameObjectState.CreatedObject)
{
obj = CreateObject(ref state.Current);
state.ReferenceResolver.AddReferenceObject(state.Current.RefId, obj);
}
else
{
obj = state.Current.ReturnValue;
}
if (argumentState.FoundPropertyCount > 0)
{
for (int i = 0; i < argumentState.FoundPropertyCount; i++)
{
BinaryPropertyInfo binaryPropertyInfo = argumentState.FoundPropertiesAsync ![i].Item1;
public void Reset()
{
CtorArgumentStateIndex = 0;
CtorArgumentState = null;
BinaryClassInfo = null !;
PolymorphicBinaryClassInfo = null;
PolymorphicBinaryTypeInfo = null;
BinaryTypeInfo = null;
PropertyPolymorphicConverter = null;
ObjectState = StackFrameObjectState.None;
OriginalDepth = 0;
PropertyIndex = 0;
PropertyRefCache = null;
ReturnValue = null;
EnumerableIndexBytes = 0;
EnumerableLength = 0;
EnumerableIndex = 0;
PropertyValueCache = null;
RefState = RefState.None;
EndProperty();
}
public override bool AddReferenceCallback(object instance, object propertyValue, Func <object, object, bool> action)
{
if (instance.IsRefId() || propertyValue.IsRefId())
{
uint?insRefId = null;
uint?propRefId = null;
if (instance is ReferenceID insId)
{
RefState s = TryGetReference(insId.RefSeq, out object tmpObj);
if (s == RefState.Created)
{
instance = tmpObj;
}
else
{
insRefId = insId.RefSeq;
}
}
if (propertyValue is ReferenceID propId)
{
RefState s = TryGetReference(propId.RefSeq, out object tmpObj);
if (s == RefState.Created)
{
propertyValue = tmpObj;
}
else
{
propRefId = propId.RefSeq;
}
}
if (!insRefId.HasValue && !propRefId.HasValue)
{
return(action(instance, propertyValue));
}
bool callback()
{
object actualInstance;
object actualPropValue;
if (instance is ReferenceID insId)
{
RefState s = TryGetReference(insId.RefSeq, out actualInstance);
if (s != RefState.Created)
{
return(false);
}
}
else
{
actualInstance = instance;
}
if (propertyValue is ReferenceID propId)
{
RefState s = TryGetReference(propId.RefSeq, out actualPropValue);
if (s != RefState.Created)
{
return(false);
}
}
else
{
actualPropValue = propertyValue;
}
return(action(actualInstance, actualPropValue));
}
if (insRefId.HasValue)
{
AddReferenceCallback(insRefId.Value, callback);
}
if (propRefId.HasValue)
{
AddReferenceCallback(propRefId.Value, callback);
}
return(true);
}
return(action(instance, propertyValue));
}
internal override bool OnTryRead(ref BinaryReader reader, Type typeToConvert, BinarySerializerOptions options, ref ReadStack state, [MaybeNullWhen(false)] out T value)
{
object obj;
if (state.UseFastPath)
{
// 刚进入对象读取
if (reader.CurrentTypeInfo == null || reader.CurrentTypeInfo.SerializeType != ClassType.Object)
{
ThrowHelper.ThrowBinaryException_DeserializeUnableToConvertValue(TypeToConvert);
}
reader.AheadReadStartToken();
if (state.Current.BinaryClassInfo.CreateObject == null)
{
ThrowHelper.ThrowNotSupportedException_DeserializeNoConstructor(state.Current.BinaryClassInfo.Type, ref reader, ref state);
}
RefState refState = BinarySerializer.ReadReferenceForObject(this, ref state, ref reader, out object refValue);
if (refState == RefState.None)
{
obj = state.Current.BinaryClassInfo.CreateObject();
state.ReferenceResolver.AddReferenceObject(state.Current.RefId, obj);
}
else
{
obj = refValue;
}
// Process all properties.
while (true)
{
reader.AheadReadPropertyName();
BinaryPropertyInfo binaryPropertyInfo = null;
state.Current.PropertyState = StackFramePropertyState.Name;
if (reader.TokenType == BinaryTokenType.EndObject)
{
break;
}
Debug.Assert(reader.TokenType == BinaryTokenType.PropertyName);
ushort propertySeq = reader.CurrentPropertySeq;
BinaryMemberInfo mi = state.GetMemberInfo(propertySeq);
// Debug.Assert(mi != null);
binaryPropertyInfo = BinarySerializer.LookupProperty(
obj,
mi.NameAsUtf8Bytes,
ref state,
out bool useExtensionProperty);
state.Current.UseExtensionProperty = useExtensionProperty;
// binaryPropertyInfo = state.LookupProperty(mi.NameAsString);
state.Current.BinaryPropertyInfo = binaryPropertyInfo;
state.Current.PropertyPolymorphicConverter = null;
if (binaryPropertyInfo == null)
{
if (!reader.TrySkip(options))
{
value = default;
return(false);
}
state.Current.EndProperty();
continue;
}
if (!binaryPropertyInfo.ShouldDeserialize)
{
if (!reader.TrySkip(options))
{
state.Current.ReturnValue = obj;
value = default;
return(false);
}
state.Current.EndProperty();
continue;
}
// Obtain the CLR value from the Binary and set the member.
if (!state.Current.UseExtensionProperty)
{
binaryPropertyInfo.ReadBinaryAndSetMember(obj, ref state, ref reader);
}
else
{
// TODO 扩展属性
}
state.Current.EndProperty();
}
}
else
{
// Slower path that supports continuation and preserved references.
if (state.Current.ObjectState == StackFrameObjectState.None)
{
// 刚进入对象读取
if (reader.CurrentTypeInfo == null || reader.CurrentTypeInfo.SerializeType != ClassType.Object)
{
ThrowHelper.ThrowBinaryException_DeserializeUnableToConvertValue(TypeToConvert);
}
if (!reader.ReadStartToken())
{
value = default;
return(false);
}
RefState refState = BinarySerializer.ReadReferenceForObject(this, ref state, ref reader, out object refValue);
if (refState == RefState.None)
{
state.Current.ObjectState = StackFrameObjectState.StartToken;
}
else if (refState == RefState.Created)
{
state.Current.ObjectState = StackFrameObjectState.CreatedObject;
state.Current.ReturnValue = refValue;
}
}
// 创建对象
if (state.Current.ObjectState < StackFrameObjectState.CreatedObject)
{
if (state.Current.BinaryClassInfo.CreateObject == null)
{
ThrowHelper.ThrowNotSupportedException_DeserializeNoConstructor(state.Current.BinaryClassInfo.Type, ref reader, ref state);
}
obj = state.Current.BinaryClassInfo.CreateObject();
state.ReferenceResolver.AddReferenceObject(state.Current.RefId, obj);
state.Current.ReturnValue = obj;
state.Current.ObjectState = StackFrameObjectState.CreatedObject;
}
else
{
obj = state.Current.ReturnValue !;
Debug.Assert(obj != null);
}
// Process all properties.
while (true)
{
// Determine the property.
// 读取属性索引
if (state.Current.PropertyState == StackFramePropertyState.None)
{
if (!reader.ReadPropertyName())
{
state.Current.ReturnValue = obj;
value = default;
return(false);
}
state.Current.PropertyState = StackFramePropertyState.ReadName;
//
}
BinaryPropertyInfo binaryPropertyInfo;
if (state.Current.PropertyState <= StackFramePropertyState.ReadName)
{
state.Current.PropertyState = StackFramePropertyState.Name;
if (reader.TokenType == BinaryTokenType.EndObject)
{
break;
}
Debug.Assert(reader.TokenType == BinaryTokenType.PropertyName);
ushort propertySeq = reader.CurrentPropertySeq;
BinaryMemberInfo mi = state.GetMemberInfo(propertySeq);
Debug.Assert(mi != null);
binaryPropertyInfo = BinarySerializer.LookupProperty(
obj,
mi.NameAsUtf8Bytes,
ref state,
out bool useExtensionProperty);
state.Current.UseExtensionProperty = useExtensionProperty;
// binaryPropertyInfo = state.LookupProperty(mi.NameAsString);
state.Current.BinaryPropertyInfo = binaryPropertyInfo;
state.Current.PropertyPolymorphicConverter = null;
if (binaryPropertyInfo == null)
{
state.Current.EndProperty();
continue;
}
}
else
{
Debug.Assert(state.Current.BinaryPropertyInfo != null);
binaryPropertyInfo = state.Current.BinaryPropertyInfo !;
}
if (state.Current.PropertyState < StackFramePropertyState.ReadValue)
{
if (!binaryPropertyInfo.ShouldDeserialize)
{
if (!reader.TrySkip(options))
{
state.Current.ReturnValue = obj;
value = default;
return(false);
}
state.Current.EndProperty();
continue;
}
}
if (state.Current.PropertyState < StackFramePropertyState.TryRead)
{
// Obtain the CLR value from the Binary and set the member.
if (!state.Current.UseExtensionProperty)
{
if (!binaryPropertyInfo.ReadBinaryAndSetMember(obj, ref state, ref reader))
{
state.Current.ReturnValue = obj;
value = default;
return(false);
}
}
else
{
// TODO 扩展属性
}
state.Current.EndProperty();
}
}
}
// Check if we are trying to build the sorted cache.
if (state.Current.PropertyRefCache != null)
{
state.Current.BinaryClassInfo.UpdateSortedPropertyCache(ref state.Current);
}
value = (T)obj;
return(true);
}
