/// <summary>
/// Provide an expression that uses the lifestyle
/// </summary>
/// <param name="scope">scope for the strategy</param>
/// <param name="request">activation request</param>
/// <param name="activationExpression">expression to create strategy type</param>
/// <returns></returns>
public IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request, Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
if (CompiledDelegate == null)
{
// new request as we don't want to carry any info over from parent request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
var localDelegate = request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
Interlocked.CompareExchange(ref CompiledDelegate, localDelegate, null);
}
var getValueFromScopeMethod =
typeof(SingletonPerNamedScopeLifestyle).GetRuntimeMethod("GetValueFromScope",
new[]
{
typeof(IExportLocatorScope),
typeof(ActivationStrategyDelegate),
typeof(string),
typeof(string),
typeof(StaticInjectionContext)
});
var closedMethod = getValueFromScopeMethod.MakeGenericMethod(request.ActivationType);
var expression = Expression.Call(closedMethod,
request.Constants.ScopeParameter,
Expression.Constant(CompiledDelegate),
Expression.Constant(UniqueId),
Expression.Constant(_scopeName),
Expression.Constant(request.GetStaticInjectionContext()));
return(request.Services.Compiler.CreateNewResult(request, expression));
}
public IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope,
IActivationExpressionRequest request,
Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
if (ConstantExpression != null)
{
return(request.Services.Compiler.CreateNewResult(request, ConstantExpression));
}
// Create new request as we shouldn't carry over anything from the previous request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
_activationDelegate =
request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
var singletonMethod = GetType().GetTypeInfo().GetDeclaredMethod("SingletonActivation");
ConstantExpression = Expression.Call(Expression.Constant(this), singletonMethod,
request.Constants.ScopeParameter, request.Constants.RootDisposalScope,
request.Constants.InjectionContextParameter);
ConstantExpression = Expression.Convert(ConstantExpression, request.ActivationType);
return(request.Services.Compiler.CreateNewResult(request, ConstantExpression));
}
/// <summary>
/// Provide an expression that uses the lifestyle
/// </summary>
/// <param name="scope">scope for the strategy</param>
/// <param name="request">activation request</param>
/// <param name="activationExpression">expression to create strategy type</param>
/// <returns></returns>
public virtual IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request, Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
var local = request.PerDelegateData.GetExtraDataOrDefaultValue <ParameterExpression>("local" + UniqueId);
if (local != null)
{
return(request.Services.Compiler.CreateNewResult(request, local));
}
if (CompiledDelegate == null)
{
// new request as we don't want to carry any info over from parent request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
var localDelegate = request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
Interlocked.CompareExchange(ref CompiledDelegate, localDelegate, null);
}
var getValueFromScopeMethod = typeof(SingletonPerScopeLifestyle).GetRuntimeMethod(ThreadSafe ? "GetValueFromScopeThreadSafe" : "GetValueFromScope", new[]
{
typeof(IExportLocatorScope),
typeof(ActivationStrategyDelegate),
typeof(string),
typeof(bool),
typeof(IInjectionContext)
});
var closedMethod = getValueFromScopeMethod.MakeGenericMethod(request.ActivationType);
var expression = Expression.Call(closedMethod,
request.ScopeParameter,
Expression.Constant(CompiledDelegate),
Expression.Constant(UniqueId),
Expression.Constant(scope.ScopeConfiguration.SingletonPerScopeShareContext),
request.InjectionContextParameter);
local = Expression.Variable(request.ActivationType);
request.PerDelegateData.SetExtraData("local" + UniqueId, local);
var assignExpression = Expression.Assign(local, expression);
var result = request.Services.Compiler.CreateNewResult(request, local);
result.AddExtraParameter(local);
result.AddExtraExpression(assignExpression);
return(result);
}
/// <summary>
/// Provide an expression that uses the lifestyle
/// </summary>
/// <param name="scope">scope for the strategy</param>
/// <param name="request">activation request</param>
/// <param name="activationExpression">expression to create strategy type</param>
/// <returns></returns>
public IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request, Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
if (_delegate == null)
{
// new request as we don't want to carry any info over from parent request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
var newDelegate = request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
Interlocked.CompareExchange(ref _delegate, newDelegate, null);
}
var getMethod = typeof(WeakSingletonLifestyle).GetRuntimeMethod(nameof(GetValue), new[] { typeof(IInjectionScope) });
var closedMethod = getMethod.MakeGenericMethod(request.ActivationType);
var expression = Expression.Call(Expression.Constant(this), closedMethod, Expression.Constant(scope));
return(request.Services.Compiler.CreateNewResult(request, expression));
}
public IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request,
Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
request.RequireInjectionContext();
if (ConstantExpression != null)
{
return(request.Services.Compiler.CreateNewResult(request, ConstantExpression));
}
// Create new request as we shouldn't carry over anything from the previous request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
_activationDelegate = request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
ConstantExpression = Expression.Convert(Expression.Call(Expression.Constant(this), getInstanceMethodInfo,
newRequest.ScopeParameter, Expression.Constant(scope), request.InjectionContextParameter,
Expression.Constant(_activationDelegate)), request.ActivationType);
var result = request.Services.Compiler.CreateNewResult(request, ConstantExpression);
return(result);
}
/// <summary>
/// Provide an expression that uses the lifestyle
/// </summary>
/// <param name="scope">scope for the strategy</param>
/// <param name="request">activation request</param>
/// <param name="activationExpression">expression to create strategy type</param>
/// <returns></returns>
public virtual IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request, Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
if (ConstantExpression != null)
{
return(request.Services.Compiler.CreateNewResult(request, ConstantExpression));
}
// Create new request as we shouldn't carry over anything from the previous request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
_activationDelegate = request.Services.Compiler.CompileDelegate(scope, activationExpression(newRequest));
lock (_lockObject)
{
if (_singleton == null)
{
_singleton = _activationDelegate(scope, scope, null);
}
}
Interlocked.CompareExchange(ref ConstantExpression, Expression.Constant(_singleton), null);
return(request.Services.Compiler.CreateNewResult(request, ConstantExpression));
}
/// <summary>
/// Provide an expression that uses the lifestyle
/// </summary>
/// <param name="scope">scope for the strategy</param>
/// <param name="request">activation request</param>
/// <param name="activationExpression">expression to create strategy type</param>
/// <returns></returns>
public virtual IActivationExpressionResult ProvideLifestyleExpression(IInjectionScope scope, IActivationExpressionRequest request, Func <IActivationExpressionRequest, IActivationExpressionResult> activationExpression)
{
var local = request.PerDelegateData.GetExtraDataOrDefaultValue <ParameterExpression>("local" + UniqueId);
if (local != null)
{
return(request.Services.Compiler.CreateNewResult(request, local));
}
request.RequireExportScope();
if (CompiledDelegate == null)
{
// new request as we don't want to carry any info over from parent request
var newRequest = request.NewRootedRequest(request.ActivationType, scope, true);
var newResult = activationExpression(newRequest);
Delegate localDelegate = null;
if (ThreadSafe || newRequest.ExportScopeRequired() || newRequest.DisposalScopeRequired() ||
newRequest.InjectionContextRequired())
{
localDelegate = request.Services.Compiler.CompileDelegate(scope, newResult);
}
else
{
var openMethod = GetType().GetTypeInfo().GetDeclaredMethod(nameof(CompileFuncDelage));
var closed = openMethod.MakeGenericMethod(newResult.Expression.Type);
localDelegate = (Delegate)closed.Invoke(null, new object[] { request, scope, newResult });
}
Interlocked.CompareExchange(ref CompiledDelegate, localDelegate, null);
}
Expression createExpression;
if (ThreadSafe)
{
var getValueFromScopeMethod = typeof(SingletonPerScopeLifestyle).GetRuntimeMethod(nameof(GetValueFromScopeThreadSafe), new[]
{
typeof(IExportLocatorScope),
typeof(ActivationStrategyDelegate),
typeof(string),
typeof(bool),
typeof(IInjectionContext)
});
var closedMethod = getValueFromScopeMethod.MakeGenericMethod(request.ActivationType);
createExpression = Expression.Call(closedMethod,
request.ScopeParameter,
Expression.Constant(CompiledDelegate),
Expression.Constant(UniqueId),
Expression.Constant(scope.ScopeConfiguration.SingletonPerScopeShareContext),
request.InjectionContextParameter);
}
else
{
var invokeMethodFastLane = CompiledDelegate.GetMethodInfo().GetParameters().Length < 3;
if (invokeMethodFastLane)
{
var getOrCreateMethod = typeof(IExportLocatorScope).GetTypeInfo()
.GetDeclaredMethods(nameof(IExportLocatorScope.GetOrCreateScopedService)).First(m => m.GetParameters().Length == 2);
var closedMethod = getOrCreateMethod.MakeGenericMethod(request.ActivationType);
createExpression = Expression.Call(request.ScopeParameter, closedMethod,
Expression.Constant(UniqueIntIdValue), Expression.Constant(CompiledDelegate));
}
else
{
var getOrCreateMethod = typeof(IExportLocatorScope).GetRuntimeMethod(nameof(IExportLocatorScope.GetOrCreateScopedService),
new[] { typeof(int), typeof(ActivationStrategyDelegate), typeof(IInjectionContext) });
var closedMethod = getOrCreateMethod.MakeGenericMethod(request.ActivationType);
createExpression = Expression.Call(request.ScopeParameter, closedMethod,
Expression.Constant(UniqueIntIdValue), Expression.Constant(CompiledDelegate),
request.InjectionContextParameter);
}
}
local = Expression.Variable(request.ActivationType);
request.PerDelegateData.SetExtraData("local" + UniqueId, local);
var assignExpression = Expression.Assign(local, createExpression);
var result = request.Services.Compiler.CreateNewResult(request, local);
result.AddExtraParameter(local);
result.AddExtraExpression(assignExpression);
return(result);
}
