public override object Validate(ScriptFile script, IExpression value, DocRange valueRange)
{
StringAction str = value as StringAction;
if (str == null)
{
script.Diagnostics.Error("Expected string constant.", valueRange);
return(null);
}
string resultingPath = Extras.CombinePathWithDotNotation(script.Uri.FilePath(), str.Value);
if (resultingPath == null)
{
script.Diagnostics.Error("File path contains invalid characters.", valueRange);
return(null);
}
string dir = Path.GetDirectoryName(resultingPath);
if (Directory.Exists(dir))
{
DeltinScript.AddImportCompletion(script, dir, valueRange);
}
if (!File.Exists(resultingPath))
{
script.Diagnostics.Error($"No file was found at '{resultingPath}'.", valueRange);
return(null);
}
if (FileTypes != null && !FileTypes.Contains(Path.GetExtension(resultingPath).ToLower()))
{
script.Diagnostics.Error($"Expected a file with the file type '{string.Join(", ", FileTypes)}'.", valueRange);
return(null);
}
script.AddDefinitionLink(valueRange, new Location(Extras.Definition(resultingPath), DocRange.Zero));
script.AddHover(valueRange, resultingPath);
return(resultingPath);
}
