public Expression Visit(ParenthesesExpression expression)
{
// TODO when should the parantheses be removed?
// TODO while the evaluation is still correct (due to the nesting of the nodes),
// the resulting expression is incorrect when printing it as a string
return(expression.Expression.Accept(this));
}
protected virtual bool CanExistInStatement(Expression expression)
{
if (expression.CodeNodeType == CodeNodeType.MethodInvocationExpression ||
expression.CodeNodeType == CodeNodeType.DelegateInvokeExpression ||
expression.CodeNodeType == CodeNodeType.AwaitExpression)
{
return(true);
}
BinaryExpression binEx = null;
if (expression.CodeNodeType == CodeNodeType.ParenthesesExpression)
{
ParenthesesExpression parenthesesExpression = expression as ParenthesesExpression;
if (parenthesesExpression.Expression.CodeNodeType == CodeNodeType.BinaryExpression)
{
binEx = parenthesesExpression.Expression as BinaryExpression;
}
}
else if (expression.CodeNodeType == CodeNodeType.BinaryExpression)
{
binEx = expression as BinaryExpression;
}
if (binEx != null && (binEx.IsAssignmentExpression || binEx.IsSelfAssign))
{
return(true);
}
return(false);
}
// TODO:4.7
// 4.8
int IExpressionVisitor <int> .VisitParentheses(ParenthesesExpression expression)
{
_Writer.Write('(');
expression.Expression.Accept(this);
_Writer.Write(')');
return(0);
}
public ISet <DescriptorKind> Visit(ParenthesesExpression expression)
{
return(expression.Expression.Accept(this));
}
public virtual void VisitParenthesesExpression(ParenthesesExpression node)
{
Visit(node.Expression);
}
public virtual ICodeNode VisitParenthesesExpression(ParenthesesExpression node)
{
node.Expression = (Expression)Visit(node.Expression);
return(node);
}
public virtual void VisitParenthesesExpression(ParenthesesExpression node)
{
this.Visit(node.get_Expression());
return;
}
private string GetExpression(ParenthesesExpression expression, ref List<OleDbParameter> parameters)
{
return " ( " + GetExpressionDispatch(expression.Children[0], ref parameters) + " ) ";
}
public IEnumerable <Expression> Visit(ParenthesesExpression expression)
{
return(Visit(expression.Expression));
}
public virtual ICodeNode VisitParenthesesExpression(ParenthesesExpression node)
{
node.set_Expression((Expression)this.Visit(node.get_Expression()));
return(node);
}
public Expression Visit(ParenthesesExpression expression)
{
var visited = expression.Expression.Accept(this);
return(visited == expression ? expression : new ParenthesesExpression(visited));
}
public SimplifiedExpression Visit(ParenthesesExpression expression)
{
return(expression.Expression.Accept(this));
}
private string GetExpression(ParenthesesExpression expression, ref List <OleDbParameter> parameters)
{
return(" ( " + GetExpressionDispatch(expression.Children[0], ref parameters) + " ) ");
}
public void Visit(ParenthesesExpression expression)
{
expression.Expression.Accept(this);
}
