public IEnumerable <VariableUsage> GetUsages(string query)
{
var document = this.parser.Parse(new Source(query));
this.Visit(document);
return(VariableUsagesProvider.Get(this.operation, document, this.schema));
}
public override GraphQLOperationDefinition EndVisitOperationDefinition(GraphQLOperationDefinition definition)
{
var variableUsages = VariableUsagesProvider.Get(definition, this.document, this.Schema);
foreach (var usage in variableUsages)
{
this.VerifyUsage(usage);
}
return(base.EndVisitOperationDefinition(definition));
}
public override GraphQLOperationDefinition EndVisitOperationDefinition(GraphQLOperationDefinition definition)
{
var variableUsages = VariableUsagesProvider.Get(definition, this.document, this.Schema);
var operationName = definition.Name != null ? definition.Name.Value : null;
foreach (var variableDefinition in this.variableDefinitions)
{
var variableName = variableDefinition.Variable.Name.Value;
if (!variableUsages.Any(e => e.Variable.Name.Value == variableName))
{
this.Errors.Add(new GraphQLException(this.GetUnusedVariablesMessage(variableName, operationName),
new[] { variableDefinition }));
}
}
return(base.EndVisitOperationDefinition(definition));
}
