static bool GetMatch(IfStatementSyntax node, out ExpressionSyntax c, out ReturnStatementSyntax e1, out ReturnStatementSyntax e2, out ReturnStatementSyntax rs)
{
rs = e1 = e2 = null;
c = node.Condition;
//attempt to match if(condition) return else return
e1 = ConvertIfStatementToNullCoalescingExpressionAction.GetSimpleStatement(node.Statement) as ReturnStatementSyntax;
if (e1 == null)
{
return(false);
}
e2 = node.Else != null?ConvertIfStatementToNullCoalescingExpressionAction.GetSimpleStatement(node.Else.Statement) as ReturnStatementSyntax : null;
//match
if (e1 != null && e2 != null)
{
return(true);
}
//attempt to match if(condition) return
if (e1 != null)
{
rs = node.Parent.ChildThatContainsPosition(node.GetTrailingTrivia().Max(t => t.FullSpan.End) + 1).AsNode() as ReturnStatementSyntax;
if (rs != null)
{
e2 = rs;
return(true);
}
}
return(false);
}
static bool GetMatch(IfStatementSyntax node, out ExpressionSyntax c, out ReturnStatementSyntax e1, out ReturnStatementSyntax e2, out ReturnStatementSyntax rs)
{
rs = e1 = e2 = null;
c = node.Condition;
//attempt to match if(condition) return else return
e1 = ConvertIfStatementToNullCoalescingExpressionAction.GetSimpleStatement(node.Statement) as ReturnStatementSyntax;
if (e1 == null)
{
return(false);
}
e2 = node.Else != null?ConvertIfStatementToNullCoalescingExpressionAction.GetSimpleStatement(node.Else.Statement) as ReturnStatementSyntax : null;
//match
if (e1 != null && e2 != null)
{
return(true);
}
//attempt to match if(condition) return; return
if (e1 != null)
{
var parentBlock = node.Parent as BlockSyntax;
if (parentBlock == null)
{
return(false);
}
var index = parentBlock.Statements.IndexOf(node);
if (index + 1 < parentBlock.Statements.Count)
{
rs = parentBlock.Statements[index + 1] as ReturnStatementSyntax;
}
if (rs != null)
{
e2 = rs;
return(true);
}
}
return(false);
}
