fix: error handling and vendor
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354
vendor/github.com/go-openapi/validate/schema.go
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vendored
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354
vendor/github.com/go-openapi/validate/schema.go
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// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package validate
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import (
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"encoding/json"
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"reflect"
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"github.com/go-openapi/errors"
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"github.com/go-openapi/spec"
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"github.com/go-openapi/strfmt"
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"github.com/go-openapi/swag"
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)
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// SchemaValidator validates data against a JSON schema
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type SchemaValidator struct {
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Path string
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in string
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Schema *spec.Schema
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validators [8]valueValidator
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Root interface{}
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KnownFormats strfmt.Registry
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Options *SchemaValidatorOptions
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}
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// AgainstSchema validates the specified data against the provided schema, using a registry of supported formats.
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//
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// When no pre-parsed *spec.Schema structure is provided, it uses a JSON schema as default. See example.
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func AgainstSchema(schema *spec.Schema, data interface{}, formats strfmt.Registry, options ...Option) error {
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res := NewSchemaValidator(schema, nil, "", formats,
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append(options, WithRecycleValidators(true), withRecycleResults(true))...,
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).Validate(data)
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defer func() {
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pools.poolOfResults.RedeemResult(res)
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}()
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if res.HasErrors() {
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return errors.CompositeValidationError(res.Errors...)
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}
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return nil
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}
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// NewSchemaValidator creates a new schema validator.
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//
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// Panics if the provided schema is invalid.
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func NewSchemaValidator(schema *spec.Schema, rootSchema interface{}, root string, formats strfmt.Registry, options ...Option) *SchemaValidator {
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opts := new(SchemaValidatorOptions)
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for _, o := range options {
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o(opts)
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}
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return newSchemaValidator(schema, rootSchema, root, formats, opts)
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}
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func newSchemaValidator(schema *spec.Schema, rootSchema interface{}, root string, formats strfmt.Registry, opts *SchemaValidatorOptions) *SchemaValidator {
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if schema == nil {
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return nil
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}
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if rootSchema == nil {
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rootSchema = schema
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}
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if schema.ID != "" || schema.Ref.String() != "" || schema.Ref.IsRoot() {
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err := spec.ExpandSchema(schema, rootSchema, nil)
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if err != nil {
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msg := invalidSchemaProvidedMsg(err).Error()
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panic(msg)
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}
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}
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if opts == nil {
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opts = new(SchemaValidatorOptions)
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}
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var s *SchemaValidator
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if opts.recycleValidators {
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s = pools.poolOfSchemaValidators.BorrowValidator()
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} else {
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s = new(SchemaValidator)
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}
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s.Path = root
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s.in = "body"
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s.Schema = schema
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s.Root = rootSchema
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s.Options = opts
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s.KnownFormats = formats
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s.validators = [8]valueValidator{
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s.typeValidator(),
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s.schemaPropsValidator(),
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s.stringValidator(),
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s.formatValidator(),
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s.numberValidator(),
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s.sliceValidator(),
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s.commonValidator(),
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s.objectValidator(),
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}
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return s
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}
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// SetPath sets the path for this schema valdiator
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func (s *SchemaValidator) SetPath(path string) {
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s.Path = path
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}
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// Applies returns true when this schema validator applies
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func (s *SchemaValidator) Applies(source interface{}, _ reflect.Kind) bool {
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_, ok := source.(*spec.Schema)
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return ok
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}
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// Validate validates the data against the schema
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func (s *SchemaValidator) Validate(data interface{}) *Result {
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if s == nil {
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return emptyResult
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}
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if s.Options.recycleValidators {
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defer func() {
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s.redeemChildren()
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s.redeem() // one-time use validator
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}()
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}
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var result *Result
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if s.Options.recycleResult {
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result = pools.poolOfResults.BorrowResult()
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result.data = data
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} else {
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result = &Result{data: data}
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}
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if s.Schema != nil && !s.Options.skipSchemataResult {
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result.addRootObjectSchemata(s.Schema)
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}
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if data == nil {
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// early exit with minimal validation
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result.Merge(s.validators[0].Validate(data)) // type validator
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result.Merge(s.validators[6].Validate(data)) // common validator
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if s.Options.recycleValidators {
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s.validators[0] = nil
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s.validators[6] = nil
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}
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return result
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}
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tpe := reflect.TypeOf(data)
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kind := tpe.Kind()
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for kind == reflect.Ptr {
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tpe = tpe.Elem()
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kind = tpe.Kind()
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}
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d := data
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if kind == reflect.Struct {
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// NOTE: since reflect retrieves the true nature of types
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// this means that all strfmt types passed here (e.g. strfmt.Datetime, etc..)
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// are converted here to strings, and structs are systematically converted
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// to map[string]interface{}.
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d = swag.ToDynamicJSON(data)
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}
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// TODO: this part should be handed over to type validator
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// Handle special case of json.Number data (number marshalled as string)
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isnumber := s.Schema.Type.Contains(numberType) || s.Schema.Type.Contains(integerType)
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if num, ok := data.(json.Number); ok && isnumber {
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if s.Schema.Type.Contains(integerType) { // avoid lossy conversion
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in, erri := num.Int64()
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if erri != nil {
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result.AddErrors(invalidTypeConversionMsg(s.Path, erri))
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result.Inc()
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return result
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}
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d = in
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} else {
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nf, errf := num.Float64()
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if errf != nil {
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result.AddErrors(invalidTypeConversionMsg(s.Path, errf))
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result.Inc()
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return result
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}
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d = nf
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}
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tpe = reflect.TypeOf(d)
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kind = tpe.Kind()
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}
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for idx, v := range s.validators {
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if !v.Applies(s.Schema, kind) {
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if s.Options.recycleValidators {
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// Validate won't be called, so relinquish this validator
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if redeemableChildren, ok := v.(interface{ redeemChildren() }); ok {
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redeemableChildren.redeemChildren()
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}
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if redeemable, ok := v.(interface{ redeem() }); ok {
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redeemable.redeem()
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}
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s.validators[idx] = nil // prevents further (unsafe) usage
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}
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continue
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}
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result.Merge(v.Validate(d))
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if s.Options.recycleValidators {
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s.validators[idx] = nil // prevents further (unsafe) usage
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}
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result.Inc()
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}
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result.Inc()
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return result
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}
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func (s *SchemaValidator) typeValidator() valueValidator {
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return newTypeValidator(
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s.Path,
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s.in,
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s.Schema.Type,
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s.Schema.Nullable,
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s.Schema.Format,
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s.Options,
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)
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}
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func (s *SchemaValidator) commonValidator() valueValidator {
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return newBasicCommonValidator(
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s.Path,
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s.in,
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s.Schema.Default,
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s.Schema.Enum,
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s.Options,
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)
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}
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func (s *SchemaValidator) sliceValidator() valueValidator {
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return newSliceValidator(
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s.Path,
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s.in,
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s.Schema.MaxItems,
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s.Schema.MinItems,
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s.Schema.UniqueItems,
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s.Schema.AdditionalItems,
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s.Schema.Items,
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s.Root,
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s.KnownFormats,
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s.Options,
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)
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}
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func (s *SchemaValidator) numberValidator() valueValidator {
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return newNumberValidator(
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s.Path,
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s.in,
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s.Schema.Default,
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s.Schema.MultipleOf,
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s.Schema.Maximum,
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s.Schema.ExclusiveMaximum,
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s.Schema.Minimum,
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s.Schema.ExclusiveMinimum,
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"",
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"",
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s.Options,
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)
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}
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func (s *SchemaValidator) stringValidator() valueValidator {
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return newStringValidator(
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s.Path,
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s.in,
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nil,
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false,
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false,
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s.Schema.MaxLength,
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s.Schema.MinLength,
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s.Schema.Pattern,
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s.Options,
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)
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}
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func (s *SchemaValidator) formatValidator() valueValidator {
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return newFormatValidator(
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s.Path,
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s.in,
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s.Schema.Format,
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s.KnownFormats,
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s.Options,
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)
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}
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func (s *SchemaValidator) schemaPropsValidator() valueValidator {
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sch := s.Schema
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return newSchemaPropsValidator(
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s.Path, s.in, sch.AllOf, sch.OneOf, sch.AnyOf, sch.Not, sch.Dependencies, s.Root, s.KnownFormats,
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s.Options,
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)
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}
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func (s *SchemaValidator) objectValidator() valueValidator {
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return newObjectValidator(
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s.Path,
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s.in,
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s.Schema.MaxProperties,
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s.Schema.MinProperties,
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s.Schema.Required,
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s.Schema.Properties,
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s.Schema.AdditionalProperties,
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s.Schema.PatternProperties,
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s.Root,
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s.KnownFormats,
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s.Options,
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)
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}
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func (s *SchemaValidator) redeem() {
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pools.poolOfSchemaValidators.RedeemValidator(s)
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}
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func (s *SchemaValidator) redeemChildren() {
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for i, validator := range s.validators {
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if validator == nil {
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continue
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}
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if redeemableChildren, ok := validator.(interface{ redeemChildren() }); ok {
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redeemableChildren.redeemChildren()
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}
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if redeemable, ok := validator.(interface{ redeem() }); ok {
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redeemable.redeem()
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}
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s.validators[i] = nil // free up allocated children if not in pool
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}
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}
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