forked from sampork/go-sniffer
/
validation.go
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/
validation.go
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// Copyright 2021 FerretDB Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package wire
import (
"errors"
"math"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/types"
"github.com/40t/go-sniffer/plugSrc/mongodb/build/FerretDB-internal/util/must"
)
// ValidationError is used for reporting validation errors.
type ValidationError struct {
err error
}
// Error implements error interface.
func (v *ValidationError) Error() string {
return v.err.Error()
}
// newValidationError returns new ValidationError.
//
// Remove and make callers use validateValue only?
// TODO https://github.com/FerretDB/FerretDB/issues/2412
func newValidationError(err error) error {
return &ValidationError{err: err}
}
// validateValue checks given value and returns error if not supported value was encountered.
func validateValue(v any) error {
switch v := v.(type) {
case *types.Document:
for _, v := range v.Values() {
if err := validateValue(v); err != nil {
return err
}
}
case *types.Array:
for i := 0; i < v.Len(); i++ {
v := must.NotFail(v.Get(i))
if err := validateValue(v); err != nil {
return err
}
}
case float64:
if math.IsNaN(v) {
return errors.New("NaN is not supported")
}
}
return nil
}
// check interfaces
var (
_ error = (*ValidationError)(nil)
)