public bool WriteExpressionInParenthesesIfNeeded(Expression expression)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
var parenthesis = expression is ArrayCreation ||
expression is DelegateCreationExpression || expression is BinaryOperator ||
expression is UnaryOperator || expression is UnaryAssignmentOperator || expression is ConditionalOperator ||
expression is AssignmentOperator || expression is PointerIndirectionOperator;
var conversion = expression as Conversion;
if (conversion != null && (conversion.ConversionKind == ConversionKind.PointerToInteger ||
conversion.ConversionKind == ConversionKind.IntegerToPointer ||
conversion.ConversionKind == ConversionKind.PointerToPointer))
{
parenthesis = true;
}
if (parenthesis)
{
this.TextSpan("(");
}
expression.WriteTo(this);
if (parenthesis)
{
this.TextSpan(")");
}
return(parenthesis);
}
public bool WriteWrappedExpressionIfNeeded(Expression expression, bool useEnumUnderlyingType = false)
{
if (expression.IsStaticOrSupportedVolatileWrapperCall())
{
new Cast {
Type = expression.Type, Operand = expression, CCast = true, UseEnumUnderlyingType = useEnumUnderlyingType,
}.WriteTo(this);
return(true);
}
this.WriteExpressionInParenthesesIfNeeded(expression);
return(false);
}
public void WriteAccess(Expression expression)
{
var effectiveExpression = expression;
this.WriteExpressionInParenthesesIfNeeded(effectiveExpression);
if (effectiveExpression.IsReference)
{
if (effectiveExpression is BaseReference)
{
this.TextSpan("::");
return;
}
this.TextSpan("->");
return;
}
var elementAccessExpression = effectiveExpression as ElementAccessExpression;
if (elementAccessExpression != null && elementAccessExpression.Operand.Type.TypeKind == TypeKind.Pointer)
{
this.TextSpan("->");
return;
}
var expressionType = effectiveExpression.Type;
if (expressionType.TypeKind == TypeKind.Struct || expressionType.TypeKind == TypeKind.Enum)
{
if (!effectiveExpression.IsStaticOrSupportedVolatileWrapperCall())
{
this.TextSpan(".");
return;
}
}
// default for Templates
this.TextSpan("->");
}