private static MethodDeclarationSyntax concurrentMethod(Class ctx, MethodDeclarationSyntax method, bool forever = false)
{
var name = method.Identifier.ToString();
var body = method.Body;
var returnStatements = body
.DescendantNodes()
.OfType <ReturnStatementSyntax>();
var lastReturn = body.Statements.LastOrDefault() as ReturnStatementSyntax;
if (returnStatements.Any())
{
body = body
.ReplaceNodes(returnStatements,
(on, nn) => Templates
.ExpressionReturn
.Get <StatementSyntax>(nn.Expression == null || nn.Expression.IsMissing
? Roslyn.@null
: nn.Expression,
Roslyn.Quoted(method.Identifier.ToString())));
}
if (forever)
{
body = CSharp.Block(
CSharp.ForStatement(body));
}
else if (lastReturn == null)
{
body = body.AddStatements(Templates
.ExpressionReturn
.Get <StatementSyntax>(
Roslyn.@null,
Roslyn.Quoted(method.Identifier.ToString())));
}
var result = Templates
.ConcurrentMethod
.Get <MethodDeclarationSyntax>("__concurrent" + name);
result = result
.WithParameterList(method
.ParameterList
.AddParameters(result
.ParameterList
.Parameters
.ToArray()))
.WithBody(body);
ctx.AddMember(result);
return(result);
}
