private void CheckDirectives(ValidationContext context, Directives directives)
{
var knownDirectives = new Dictionary <string, Directive>();
directives?.Apply(directive =>
{
var directiveName = directive.Name;
if (knownDirectives.ContainsKey(directiveName))
{
var error = new ValidationError(
context.OriginalQuery,
"5.6.3",
DuplicateDirectiveMessage(directiveName),
knownDirectives[directiveName],
directive);
context.ReportError(error);
}
else
{
knownDirectives[directiveName] = directive;
}
});
}
