IEnumerable<int> IArrayIndexExpression.GetIndices(JsonElement array)
{
if (_expression.OutputType != QueryExpressionType.Number &&
_expression.OutputType != QueryExpressionType.InstanceDependent)
return new int[] { };
var result = _expression.Evaluate(array);
if (result.ValueKind != JsonValueKind.Number) return new int[] { };
var index = result.GetDecimal();
if (Math.Truncate(index) != index) return new int[] { };
return new[] {(int) index};
}
IEnumerable <int> IArrayIndexExpression.GetIndices(JsonElement array)
{
if (_expression.OutputType != QueryExpressionType.Number &&
_expression.OutputType != QueryExpressionType.InstanceDependent)
{
return new int[] { }
}
;
var result = _expression.Evaluate(array);
if (result.ValueKind != JsonValueKind.Number)
{
return new int[] { }
}
;
var index = result.GetDecimal();
if (Math.Truncate(index) != index)
{
return new int[] { }
}
;
return(new[] { (int)index });
}
IEnumerable <string> IObjectIndexExpression.GetProperties(JsonElement obj)
{
if (_expression.OutputType != QueryExpressionType.String &&
_expression.OutputType != QueryExpressionType.InstanceDependent)
{
return new string[] { }
}
;
var result = _expression.Evaluate(obj);
if (result.ValueKind != JsonValueKind.String)
{
return new string[] { }
}
;
var index = result.GetString();
return(new[] { index });
}
private bool Evaluate(JsonElement item)
{
if (_expression.OutputType != QueryExpressionType.Boolean &&
_expression.OutputType != QueryExpressionType.InstanceDependent)
{
return(false);
}
var result = _expression.Evaluate(item);
if (result.ValueKind != JsonValueKind.True &&
result.ValueKind != JsonValueKind.False)
{
return(false);
}
return(result.GetBoolean());
}
