/// <summary>
/// Returns the action from the given expression.
/// </summary>
private MethodDeclarationSyntax GetActionFromExpression(ExpressionSyntax expr)
{
MethodDeclarationSyntax action = null;
string actionName = string.Empty;
if (expr is InvocationExpressionSyntax)
{
var invocation = expr as InvocationExpressionSyntax;
if (!(invocation.Expression is IdentifierNameSyntax) ||
!(invocation.Expression as IdentifierNameSyntax).Identifier.ValueText.Equals("nameof") ||
invocation.ArgumentList.Arguments.Count != 1)
{
return(action);
}
var param = invocation.ArgumentList.Arguments[0];
var identifier = AnalysisContext.GetIdentifier(param.Expression);
actionName = identifier.Identifier.ValueText;
}
else if (expr is LiteralExpressionSyntax)
{
var literal = expr as LiteralExpressionSyntax;
actionName = literal.ToString();
}
action = this.Machine.Declaration.DescendantNodes().OfType <MethodDeclarationSyntax>().
Where(m => m.Identifier.ValueText.Equals(actionName)).FirstOrDefault();
return(action);
}
