private SwitchExpressionArmSyntax ConstructSwitchArm(SwitchSectionSyntax section)
{
var isDefault = section
.Descendants <DefaultSwitchLabelSyntax>()
.Any();
var returnStatement = section
.Descendants <ReturnStatementSyntax>()
.FirstOrDefault();
if (returnStatement?.Expression == null)
{
return(null);
}
PatternSyntax pattern;
if (!isDefault)
{
var labelExpression = section.Labels
.FirstOrDefault()
?.DescendantsAndSelf <ExpressionSyntax>()
.FirstOrDefault();
pattern = ConstantPattern(labelExpression);
}
else
{
pattern = DiscardPattern();
}
var arm = SwitchExpressionArm(
pattern,
null,
Token(SyntaxKind.EqualsGreaterThanToken)
.WithLeadingTrivia(Space)
.WithTrailingTrivia(Space),
returnStatement.Expression)
.WithLeadingTrivia(section.GetLeadingTrivia());
if (isDefault)
{
arm = arm.WithTrailingTrivia(EndOfLine(Environment.NewLine));
}
return(arm);
}
