public Result.IfSuccess <BindingSource> VisitIndexerAccessor(IndexerAccessor indexerAccessor, Parameters parameters, Context context)
{
var indexerResult = indexerAccessor.Source.Visit(this, parameters, context);
var indexerContext = new Context(indexerResult.Value, context);
return(indexerAccessor.Indexer.Visit(this, parameters, indexerContext));
}
private static void CheckNumericConversion(ConversionBlock block, Expression expression, ResolveResult rr, IType expectedType, Conversion conversion)
{
var fromType = rr.Type;
var toType = expectedType;
if (fromType.Kind == TypeKind.Enum)
{
fromType = fromType.GetDefinition().EnumUnderlyingType;
}
if (toType.Kind == TypeKind.Enum)
{
toType = toType.GetDefinition().EnumUnderlyingType;
}
bool isArrayIndex = false;
if (Helpers.Is64Type(toType, block.Emitter.Resolver) && expression.Parent is IndexerExpression &&
((IndexerExpression)expression.Parent).Arguments.Contains(expression))
{
var isIgnore = true;
var isAccessorsIndexer = false;
IProperty member = null;
IndexerAccessor current = null;
if (block.Emitter.Resolver.ResolveNode(expression.Parent) is MemberResolveResult memberResolveResult)
{
var resolvedMember = memberResolveResult.Member;
isIgnore = block.Emitter.Validator.IsExternalType(resolvedMember.DeclaringTypeDefinition);
isAccessorsIndexer = block.Emitter.Validator.IsAccessorsIndexer(resolvedMember);
if (resolvedMember is IProperty property)
{
member = property;
current = IndexerBlock.GetIndexerAccessor(block.Emitter, member, block.Emitter.IsAssignment);
}
}
if (!(current != null && current.InlineAttr != null) && !(!(isIgnore || (current != null && current.IgnoreAccessor)) || isAccessorsIndexer))
{
block.Write(JS.Types.System.Int64.TONUMBER);
block.Write("(");
isArrayIndex = true;
}
}
if ((conversion.IsNumericConversion || conversion.IsEnumerationConversion) && conversion.IsExplicit)
{
if (!(expression.Parent is ArrayInitializerExpression) &&
Helpers.Is64Type(fromType, block.Emitter.Resolver) &&
Helpers.IsFloatType(toType, block.Emitter.Resolver) &&
!Helpers.IsDecimalType(toType, block.Emitter.Resolver))
{
if (!(expression.Parent is BinaryOperatorExpression be) || be.Operator != BinaryOperatorType.Divide || be.Left != expression)
{
block.Write(JS.Types.System.Int64.TONUMBER);
block.Write("(");
block.AfterOutput += ")";
}
}
else if (Helpers.IsDecimalType(toType, block.Emitter.Resolver) && !Helpers.IsDecimalType(fromType, block.Emitter.Resolver))
{
block.Write(JS.Types.SYSTEM_DECIMAL + "(");
block.AfterOutput += ", null, " + H5Types.ToJsName(fromType, block.Emitter) + ")";
}
else if (Helpers.IsDecimalType(fromType, block.Emitter.Resolver))
{
ClipDecimal(expression, block, toType);
}
else if (Helpers.Is64Type(fromType, block.Emitter.Resolver))
{
CheckLong(block, expression, toType, fromType, IsInCheckedContext(block.Emitter, expression));
}
else if (Helpers.IsFloatType(fromType, block.Emitter.Resolver) && Helpers.IsIntegerType(toType, block.Emitter.Resolver))
{
FloatToInt(block, expression, fromType, toType, IsInCheckedContext(block.Emitter, expression));
}
else if (NeedsNarrowingNumericConversion(fromType, toType))
{
if (IsInCheckedContext(block.Emitter, expression))
{
CheckInteger(block, expression, toType);
}
else
{
ClipInteger(block, expression, toType, true);
}
}
}
else if (conversion.IsNumericConversion && conversion.IsImplicit && !(expression.Parent is ArrayInitializerExpression) &&
Helpers.Is64Type(fromType, block.Emitter.Resolver) &&
Helpers.IsFloatType(toType, block.Emitter.Resolver) &&
!Helpers.IsDecimalType(toType, block.Emitter.Resolver))
{
if (!(expression.Parent is BinaryOperatorExpression be) || be.Operator != BinaryOperatorType.Divide || be.Left != expression)
{
block.Write(JS.Types.System.Int64.TONUMBER);
block.Write("(");
block.AfterOutput += ")";
}
}
else if (((!Helpers.Is64Type(toType, block.Emitter.Resolver) && Helpers.IsIntegerType(toType, block.Emitter.Resolver)) ||
(rr is OperatorResolveResult && !Helpers.Is64Type(fromType, block.Emitter.Resolver) && Helpers.IsIntegerType(fromType, block.Emitter.Resolver))) &&
(expression is BinaryOperatorExpression || expression is UnaryOperatorExpression || expression.Parent is AssignmentExpression) &&
IsInCheckedContext(block.Emitter, expression))
{
var needCheck = false;
var be = expression as BinaryOperatorExpression;
bool isBitwiseOperator = be != null && (be.Operator == BinaryOperatorType.ShiftLeft || be.Operator == BinaryOperatorType.ShiftRight || be.Operator == BinaryOperatorType.BitwiseAnd || be.Operator == BinaryOperatorType.BitwiseOr || be.Operator == BinaryOperatorType.ExclusiveOr);
if ((Helpers.IsKnownType(KnownTypeCode.Int32, toType, block.Emitter.Resolver) && isBitwiseOperator) || (Helpers.IsKnownType(KnownTypeCode.UInt32, toType, block.Emitter.Resolver) && be != null && be.Operator == BinaryOperatorType.ShiftRight))
{
// Don't need to check even in checked context and don't need to clip
}
else if (be != null && (be.Operator == BinaryOperatorType.Add ||
be.Operator == BinaryOperatorType.Divide ||
be.Operator == BinaryOperatorType.Multiply ||
isBitwiseOperator ||
be.Operator == BinaryOperatorType.Subtract))
{
if (isBitwiseOperator)
{
ClipInteger(block, expression, toType, false);
}
else
{
needCheck = true;
}
}
else
{
if (expression is UnaryOperatorExpression ue && (ue.Operator == UnaryOperatorType.Minus ||
ue.Operator == UnaryOperatorType.Increment ||
ue.Operator == UnaryOperatorType.Decrement ||
ue.Operator == UnaryOperatorType.PostIncrement ||
ue.Operator == UnaryOperatorType.PostDecrement))
{
needCheck = true;
}
else
{
var ae = expression.Parent as AssignmentExpression;
isBitwiseOperator = ae != null && (ae.Operator == AssignmentOperatorType.ShiftRight || ae.Operator == AssignmentOperatorType.ShiftLeft || ae.Operator == AssignmentOperatorType.BitwiseAnd || ae.Operator == AssignmentOperatorType.BitwiseOr || ae.Operator == AssignmentOperatorType.ExclusiveOr);
if ((isBitwiseOperator && Helpers.IsKnownType(KnownTypeCode.Int32, toType, block.Emitter.Resolver)) ||
(ae != null && ae.Operator == AssignmentOperatorType.ShiftRight && Helpers.IsKnownType(KnownTypeCode.UInt32, toType, block.Emitter.Resolver)))
{
// Don't need to check even in checked context and don't need to clip
}
else if (ae != null && (isBitwiseOperator || ae.Operator == AssignmentOperatorType.Add ||
ae.Operator == AssignmentOperatorType.Divide ||
ae.Operator == AssignmentOperatorType.Multiply ||
ae.Operator == AssignmentOperatorType.Subtract))
{
if (isBitwiseOperator)
{
ClipInteger(block, expression, toType, false);
}
else
{
needCheck = true;
}
}
}
}
