internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
{
string message;
ValidationError error = null;
RulePropertyExpressionInfo propExprInfo = null;
bool includeNonPublic = false;
Type targetType = null;
CodeIndexerExpression indexerExpr = (CodeIndexerExpression)expression;
CodeExpression targetObject = indexerExpr.TargetObject;
if (targetObject == null)
{
error = new ValidationError(Messages.NullIndexerTarget, ErrorNumbers.Error_ParameterNotSet);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
return null;
}
if (targetObject is CodeTypeReferenceExpression)
{
error = new ValidationError(Messages.IndexersCannotBeStatic, ErrorNumbers.Error_ParameterNotSet);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
return null;
}
if (indexerExpr.Indices == null || indexerExpr.Indices.Count == 0)
{
error = new ValidationError(Messages.MissingIndexExpressions, ErrorNumbers.Error_ParameterNotSet);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
return null;
}
try
{
// Early exit from this if a cycle is detected.
if (!validation.PushParentExpression(indexerExpr))
return null;
RuleExpressionInfo targetExprInfo = RuleExpressionWalker.Validate(validation, indexerExpr.TargetObject, false);
if (targetExprInfo == null) // error occurred, so simply return
return null;
targetType = targetExprInfo.ExpressionType;
if (targetType == null)
return null;
// if an error occurred (targetType == null), continue on to validate the arguments
if (targetType == typeof(NullLiteral))
{
message = string.Format(CultureInfo.CurrentCulture, Messages.NullIndexerTarget);
error = new ValidationError(message, ErrorNumbers.Error_ParameterNotSet);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
targetType = null; // force exit after validating the arguments
}
List<CodeExpression> argExprs = new List<CodeExpression>();
bool hasInvalidArgument = false;
for (int i = 0; i < indexerExpr.Indices.Count; ++i)
{
CodeExpression argExpr = indexerExpr.Indices[i];
if (argExpr == null)
{
error = new ValidationError(Messages.NullIndexExpression, ErrorNumbers.Error_ParameterNotSet);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
hasInvalidArgument = true;
}
else
{
CodeDirectionExpression argDirection = argExpr as CodeDirectionExpression;
if (argDirection != null && argDirection.Direction != FieldDirection.In)
{
// No "ref" or "out" arguments are allowed on indexer arguments.
error = new ValidationError(Messages.IndexerArgCannotBeRefOrOut, ErrorNumbers.Error_IndexerArgCannotBeRefOrOut);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
hasInvalidArgument = true;
}
if (argExpr is CodeTypeReferenceExpression)
{
message = string.Format(CultureInfo.CurrentCulture, Messages.CodeExpressionNotHandled, argExpr.GetType().FullName);
error = new ValidationError(message, ErrorNumbers.Error_CodeExpressionNotHandled);
error.UserData[RuleUserDataKeys.ErrorObject] = argExpr;
validation.AddError(error);
hasInvalidArgument = true;
}
// Validate the argument.
RuleExpressionInfo argExprInfo = RuleExpressionWalker.Validate(validation, argExpr, false);
if (argExprInfo == null)
hasInvalidArgument = true;
else
argExprs.Add(argExpr);
}
}
// Stop further validation if there was a problem with the target expression.
if (targetType == null)
return null;
// Stop further validation if there was a problem with any of the arguments.
if (hasInvalidArgument)
return null;
BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Instance;
if (validation.AllowInternalMembers(targetType))
{
bindingFlags |= BindingFlags.NonPublic;
includeNonPublic = true;
}
// Everything okay so far, try to resolve the method.
propExprInfo = validation.ResolveIndexerProperty(targetType, bindingFlags, argExprs, out error);
if (propExprInfo == null)
{
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
return null;
}
}
finally
{
validation.PopParentExpression();
}
PropertyInfo pi = propExprInfo.PropertyInfo;
MethodInfo accessorMethod = isWritten ? pi.GetSetMethod(includeNonPublic) : pi.GetGetMethod(includeNonPublic);
if (accessorMethod == null)
{
string baseMessage = isWritten ? Messages.UnknownPropertySet : Messages.UnknownPropertyGet;
message = string.Format(CultureInfo.CurrentCulture, baseMessage, pi.Name, RuleDecompiler.DecompileType(targetType));
error = new ValidationError(message, ErrorNumbers.Error_CannotResolveMember);
error.UserData[RuleUserDataKeys.ErrorObject] = indexerExpr;
validation.Errors.Add(error);
return null;
}
if (!validation.ValidateMemberAccess(targetObject, targetType, accessorMethod, pi.Name, indexerExpr))
return null;
// Validate any RuleAttributes, if present.
object[] attrs = pi.GetCustomAttributes(typeof(RuleAttribute), true);
if (attrs != null && attrs.Length > 0)
{
Stack<MemberInfo> methodStack = new Stack<MemberInfo>();
methodStack.Push(pi);
bool allAttributesValid = true;
foreach (RuleAttribute ruleAttr in attrs)
{
if (!ruleAttr.Validate(validation, pi, targetType, pi.GetIndexParameters()))
allAttributesValid = false;
}
methodStack.Pop();
if (!allAttributesValid)
return null;
}
return propExprInfo;
}
internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
{
ValidationError item = null;
RulePropertyExpressionInfo info = null;
bool nonPublic = false;
Type expressionType = null;
CodeIndexerExpression newParent = (CodeIndexerExpression) expression;
CodeExpression targetObject = newParent.TargetObject;
if (targetObject == null)
{
item = new ValidationError(Messages.NullIndexerTarget, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return null;
}
if (targetObject is CodeTypeReferenceExpression)
{
item = new ValidationError(Messages.IndexersCannotBeStatic, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return null;
}
if ((newParent.Indices == null) || (newParent.Indices.Count == 0))
{
item = new ValidationError(Messages.MissingIndexExpressions, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return null;
}
try
{
if (!validation.PushParentExpression(newParent))
{
return null;
}
RuleExpressionInfo info2 = RuleExpressionWalker.Validate(validation, newParent.TargetObject, false);
if (info2 == null)
{
return null;
}
expressionType = info2.ExpressionType;
if (expressionType == null)
{
return null;
}
if (expressionType == typeof(NullLiteral))
{
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.NullIndexerTarget, new object[0]), 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
expressionType = null;
}
List<CodeExpression> argumentExprs = new List<CodeExpression>();
bool flag2 = false;
for (int i = 0; i < newParent.Indices.Count; i++)
{
CodeExpression expression4 = newParent.Indices[i];
if (expression4 == null)
{
item = new ValidationError(Messages.NullIndexExpression, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
flag2 = true;
}
else
{
CodeDirectionExpression expression5 = expression4 as CodeDirectionExpression;
if ((expression5 != null) && (expression5.Direction != FieldDirection.In))
{
item = new ValidationError(Messages.IndexerArgCannotBeRefOrOut, 0x19d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
flag2 = true;
}
if (expression4 is CodeTypeReferenceExpression)
{
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CodeExpressionNotHandled, new object[] { expression4.GetType().FullName }), 0x548);
item.UserData["ErrorObject"] = expression4;
validation.AddError(item);
flag2 = true;
}
if (RuleExpressionWalker.Validate(validation, expression4, false) == null)
{
flag2 = true;
}
else
{
argumentExprs.Add(expression4);
}
}
}
if (expressionType == null)
{
return null;
}
if (flag2)
{
return null;
}
BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Instance;
if (validation.AllowInternalMembers(expressionType))
{
bindingFlags |= BindingFlags.NonPublic;
nonPublic = true;
}
info = validation.ResolveIndexerProperty(expressionType, bindingFlags, argumentExprs, out item);
if (info == null)
{
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return null;
}
}
finally
{
validation.PopParentExpression();
}
PropertyInfo propertyInfo = info.PropertyInfo;
MethodInfo accessorMethod = isWritten ? propertyInfo.GetSetMethod(nonPublic) : propertyInfo.GetGetMethod(nonPublic);
if (accessorMethod == null)
{
string format = isWritten ? Messages.UnknownPropertySet : Messages.UnknownPropertyGet;
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, format, new object[] { propertyInfo.Name, RuleDecompiler.DecompileType(expressionType) }), 0x54a);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return null;
}
if (!validation.ValidateMemberAccess(targetObject, expressionType, accessorMethod, propertyInfo.Name, newParent))
{
return null;
}
object[] customAttributes = propertyInfo.GetCustomAttributes(typeof(RuleAttribute), true);
if ((customAttributes != null) && (customAttributes.Length > 0))
{
Stack<MemberInfo> stack = new Stack<MemberInfo>();
stack.Push(propertyInfo);
bool flag3 = true;
foreach (RuleAttribute attribute in customAttributes)
{
if (!attribute.Validate(validation, propertyInfo, expressionType, propertyInfo.GetIndexParameters()))
{
flag3 = false;
}
}
stack.Pop();
if (!flag3)
{
return null;
}
}
return info;
}
internal override RuleExpressionInfo Validate(CodeExpression expression, RuleValidation validation, bool isWritten)
{
ValidationError item = null;
RulePropertyExpressionInfo info = null;
bool nonPublic = false;
Type expressionType = null;
CodeIndexerExpression newParent = (CodeIndexerExpression)expression;
CodeExpression targetObject = newParent.TargetObject;
if (targetObject == null)
{
item = new ValidationError(Messages.NullIndexerTarget, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return(null);
}
if (targetObject is CodeTypeReferenceExpression)
{
item = new ValidationError(Messages.IndexersCannotBeStatic, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return(null);
}
if ((newParent.Indices == null) || (newParent.Indices.Count == 0))
{
item = new ValidationError(Messages.MissingIndexExpressions, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return(null);
}
try
{
if (!validation.PushParentExpression(newParent))
{
return(null);
}
RuleExpressionInfo info2 = RuleExpressionWalker.Validate(validation, newParent.TargetObject, false);
if (info2 == null)
{
return(null);
}
expressionType = info2.ExpressionType;
if (expressionType == null)
{
return(null);
}
if (expressionType == typeof(NullLiteral))
{
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.NullIndexerTarget, new object[0]), 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
expressionType = null;
}
List <CodeExpression> argumentExprs = new List <CodeExpression>();
bool flag2 = false;
for (int i = 0; i < newParent.Indices.Count; i++)
{
CodeExpression expression4 = newParent.Indices[i];
if (expression4 == null)
{
item = new ValidationError(Messages.NullIndexExpression, 0x53d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
flag2 = true;
}
else
{
CodeDirectionExpression expression5 = expression4 as CodeDirectionExpression;
if ((expression5 != null) && (expression5.Direction != FieldDirection.In))
{
item = new ValidationError(Messages.IndexerArgCannotBeRefOrOut, 0x19d);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
flag2 = true;
}
if (expression4 is CodeTypeReferenceExpression)
{
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, Messages.CodeExpressionNotHandled, new object[] { expression4.GetType().FullName }), 0x548);
item.UserData["ErrorObject"] = expression4;
validation.AddError(item);
flag2 = true;
}
if (RuleExpressionWalker.Validate(validation, expression4, false) == null)
{
flag2 = true;
}
else
{
argumentExprs.Add(expression4);
}
}
}
if (expressionType == null)
{
return(null);
}
if (flag2)
{
return(null);
}
BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.Instance;
if (validation.AllowInternalMembers(expressionType))
{
bindingFlags |= BindingFlags.NonPublic;
nonPublic = true;
}
info = validation.ResolveIndexerProperty(expressionType, bindingFlags, argumentExprs, out item);
if (info == null)
{
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return(null);
}
}
finally
{
validation.PopParentExpression();
}
PropertyInfo propertyInfo = info.PropertyInfo;
MethodInfo accessorMethod = isWritten ? propertyInfo.GetSetMethod(nonPublic) : propertyInfo.GetGetMethod(nonPublic);
if (accessorMethod == null)
{
string format = isWritten ? Messages.UnknownPropertySet : Messages.UnknownPropertyGet;
item = new ValidationError(string.Format(CultureInfo.CurrentCulture, format, new object[] { propertyInfo.Name, RuleDecompiler.DecompileType(expressionType) }), 0x54a);
item.UserData["ErrorObject"] = newParent;
validation.Errors.Add(item);
return(null);
}
if (!validation.ValidateMemberAccess(targetObject, expressionType, accessorMethod, propertyInfo.Name, newParent))
{
return(null);
}
object[] customAttributes = propertyInfo.GetCustomAttributes(typeof(RuleAttribute), true);
if ((customAttributes != null) && (customAttributes.Length > 0))
{
Stack <MemberInfo> stack = new Stack <MemberInfo>();
stack.Push(propertyInfo);
bool flag3 = true;
foreach (RuleAttribute attribute in customAttributes)
{
if (!attribute.Validate(validation, propertyInfo, expressionType, propertyInfo.GetIndexParameters()))
{
flag3 = false;
}
}
stack.Pop();
if (!flag3)
{
return(null);
}
}
return(info);
}