protected override object VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
{
object[] parameterValues;
if (constructorCallSite.ParameterCallSites.Length == 0)
{
parameterValues = Array.Empty <object>();
}
else
{
parameterValues = new object[constructorCallSite.ParameterCallSites.Length];
for (var index = 0; index < parameterValues.Length; index++)
{
parameterValues[index] = VisitCallSite(constructorCallSite.ParameterCallSites[index], context);
}
}
#if NETCOREAPP3_0
return(constructorCallSite.ConstructorInfo.Invoke(BindingFlags.DoNotWrapExceptions, binder: null, parameters: parameterValues, culture: null));
#else
try
{
return(constructorCallSite.ConstructorInfo.Invoke(parameterValues));
}
catch (Exception ex) when(ex.InnerException != null)
{
ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
// The above line will always throw, but the compiler requires we throw explicitly.
throw;
}
#endif
}
protected override Expression VisitConstructor(ConstructorCallSite callSite, object?context)
{
ParameterInfo[] parameters = callSite.ConstructorInfo.GetParameters();
Expression[] parameterExpressions;
if (callSite.ParameterCallSites.Length == 0)
{
parameterExpressions = Array.Empty <Expression>();
}
else
{
parameterExpressions = new Expression[callSite.ParameterCallSites.Length];
for (int i = 0; i < parameterExpressions.Length; i++)
{
parameterExpressions[i] = Convert(VisitCallSite(callSite.ParameterCallSites[i], context), parameters[i].ParameterType);
}
}
Expression expression = Expression.New(callSite.ConstructorInfo, parameterExpressions);
if (callSite.ImplementationType !.IsValueType)
{
expression = Expression.Convert(expression, typeof(object));
}
return(expression);
}
protected override object VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
{
object[] parameterValues;
if (constructorCallSite.ParameterCallSites.Length == 0)
{
parameterValues = Array.Empty <object>();
}
else
{
//如果当前构造器参数不为空,则实例化每一个参数的实例对象
parameterValues = new object[constructorCallSite.ParameterCallSites.Length];
for (var index = 0; index < parameterValues.Length; index++)
{
parameterValues[index] = VisitCallSite(constructorCallSite.ParameterCallSites[index], context);
}
}
try
{
//根据参数对象进行实例化对象并返回
return(constructorCallSite.ConstructorInfo.Invoke(parameterValues));
}
catch (Exception ex) when(ex.InnerException != null)
{
ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
// The above line will always throw, but the compiler requires we throw explicitly.
throw;
}
}
protected override object VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
{
object[] parameterValues;
if (constructorCallSite.ParameterCallSites.Length == 0)
{
parameterValues = new object[0];
}
else
{
parameterValues = new object[constructorCallSite.ParameterCallSites.Length];
for (var index = 0; index < parameterValues.Length; index++)
{
parameterValues[index] = VisitCallSite(constructorCallSite.ParameterCallSites[index], context);
}
}
try
{
return(constructorCallSite.ConstructorInfo.Invoke(parameterValues));
}
catch (Exception ex) when(ex.InnerException != null)
{
#if NET45_OR_GREATER
ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
#endif
// The above line will always throw, but the compiler requires we throw explicitly.
throw;
}
}
protected override object VisitConstructor(ConstructorCallSite constructorCallSite, ServiceProviderEngineScope scope)
{
object[] parameterValues = new object[constructorCallSite.ParameterCallSites.Length];
for (var index = 0; index < parameterValues.Length; index++)
{
parameterValues[index] = VisitCallSite(constructorCallSite.ParameterCallSites[index], scope);
}
try
{
return(constructorCallSite.ConstructorInfo.Invoke(parameterValues));
}
catch (Exception ex) when(ex.InnerException != null)
{
try
{
System.Diagnostics.Debugger.Break();
return(constructorCallSite.ConstructorInfo.Invoke(parameterValues));
}
catch (Exception ex1) when(ex1.InnerException != null)
{
ExceptionDispatchInfo.Capture(ex1.InnerException).Throw();
// The above line will always throw, but the compiler requires we throw explicitly.
throw;
}
//ExceptionDispatchInfo.Capture(ex.InnerException).Throw();
//// The above line will always throw, but the compiler requires we throw explicitly.
//throw;
}
}
protected override Expression VisitConstructor(ConstructorCallSite callSite, ParameterExpression provider)
{
var parameters = callSite.ConstructorInfo.GetParameters();
return(Expression.New(
callSite.ConstructorInfo,
callSite.ParameterCallSites.Select((c, index) =>
Expression.Convert(VisitCallSite(c, provider), parameters[index].ParameterType))));
}
protected override Expression VisitConstructor(ConstructorCallSite callSite, CallSiteExpressionBuilderContext context)
{
var parameters = callSite.ConstructorInfo.GetParameters();
return(Expression.New(
callSite.ConstructorInfo,
callSite.ParameterCallSites.Select((c, index) =>
Convert(VisitCallSite(c, context), parameters[index].ParameterType))));
}
protected override Expression VisitConstructor(ConstructorCallSite constructorCallSite, ILEmitResolverBuilderContext argument)
{
// new T([create arguments])
foreach (var parameterCallSite in constructorCallSite.ParameterCallSites)
{
VisitCallSite(parameterCallSite, argument);
}
argument.Generator.Emit(OpCodes.Newobj, constructorCallSite.ConstructorInfo);
return(null);
}
protected override Type?VisitConstructor(ConstructorCallSite constructorCallSite, CallSiteValidatorState state)
{
Type?result = null;
foreach (ServiceCallSite parameterCallSite in constructorCallSite.ParameterCallSites)
{
Type?scoped = VisitCallSite(parameterCallSite, state);
result ??= scoped;
}
return(result);
}
protected override Expression VisitConstructor(ConstructorCallSite callSite, CallSiteExpressionBuilderContext context)
{
var parameters = callSite.ConstructorInfo.GetParameters();
var parameterExpressions = new Expression[callSite.ParameterCallSites.Length];
for (int i = 0; i < parameterExpressions.Length; i++)
{
parameterExpressions[i] = Convert(VisitCallSite(callSite.ParameterCallSites[i], context), parameters[i].ParameterType);
}
return(Expression.New(callSite.ConstructorInfo, parameterExpressions));
}
protected override Type VisitConstructor(ConstructorCallSite constructorCallSite, CallSiteValidatorState state)
{
Type result = null;
foreach (var parameterCallSite in constructorCallSite.ParameterCallSites)
{
var scoped = VisitCallSite(parameterCallSite, state);
if (result == null)
{
result = scoped;
}
}
return(result);
}
protected override object VisitConstructor(ConstructorCallSite constructorCallSite, ILEmitResolverBuilderContext argument)
{
// new T([create arguments])
foreach (ServiceCallSite parameterCallSite in constructorCallSite.ParameterCallSites)
{
VisitCallSite(parameterCallSite, argument);
if (parameterCallSite.ServiceType.IsValueType)
{
argument.Generator.Emit(OpCodes.Unbox_Any, parameterCallSite.ServiceType);
}
}
argument.Generator.Emit(OpCodes.Newobj, constructorCallSite.ConstructorInfo);
return(null);
}
protected override Expression VisitConstructor(ConstructorCallSite callSite, object context)
{
ParameterInfo[] parameters = callSite.ConstructorInfo.GetParameters();
Expression[] parameterExpressions;
if (callSite.ParameterCallSites.Length == 0)
{
parameterExpressions = Array.Empty <Expression>();
}
else
{
parameterExpressions = new Expression[callSite.ParameterCallSites.Length];
for (int i = 0; i < parameterExpressions.Length; i++)
{
parameterExpressions[i] = Convert(VisitCallSite(callSite.ParameterCallSites[i], context), parameters[i].ParameterType);
}
}
return(Expression.New(callSite.ConstructorInfo, parameterExpressions));
}
protected abstract TResult VisitConstructor(ConstructorCallSite constructorCallSite, TArgument argument);
private static IEnumerable <Type> GetParameters(ConstructorCallSite constructorCallSite) => constructorCallSite .Constructor .GetParameters() .Select(p => p.ParameterType);
private static IEnumerable<Type> GetParameters(ConstructorCallSite constructorCallSite) =>
constructorCallSite
.Constructor
.GetParameters()
.Select(p => p.ParameterType);
