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Editing: validate.jst

{{ /**
    * schema compilation (render) time:
    * it = { schema, RULES, _validate, opts }
    * it.validate - this template function,
    *   it is used recursively to generate code for subschemas
    *
    * runtime:
    * "validate" is a variable name to which this function will be assigned
    * validateRef etc. are defined in the parent scope in index.js
    */ }}

{{
  var $async = it.schema.$async === true
    , $refKeywords = it.util.schemaHasRulesExcept(it.schema, it.RULES.all, '$ref')
    , $id = it.self._getId(it.schema);
}}

{{
  if (it.opts.strictKeywords) {
    var $unknownKwd = it.util.schemaUnknownRules(it.schema, it.RULES.keywords);
    if ($unknownKwd) {
      var $keywordsMsg = 'unknown keyword: ' + $unknownKwd;
      if (it.opts.strictKeywords === 'log') it.logger.warn($keywordsMsg);
      else throw new Error($keywordsMsg);
    }
  }
}}

{{? it.isTop }}
  var validate = {{?$async}}{{it.async = true;}}async {{?}}function(data, dataPath, parentData, parentDataProperty, rootData) {
    'use strict';
    {{? $id && (it.opts.sourceCode || it.opts.processCode) }}
      {{= '/\*# sourceURL=' + $id + ' */' }}
    {{?}}
{{?}}

{{? typeof it.schema == 'boolean' || !($refKeywords || it.schema.$ref) }}
  {{ var $keyword = 'false schema'; }}
  {{# def.setupKeyword }}
  {{? it.schema === false}}
    {{? it.isTop}}
      {{ $breakOnError = true; }}
    {{??}}
      var {{=$valid}} = false;
    {{?}}
    {{# def.error:'false schema' }}
  {{??}}
    {{? it.isTop}}
      {{? $async }}
        return data;
      {{??}}
        validate.errors = null;
        return true;
      {{?}}
    {{??}}
      var {{=$valid}} = true;
    {{?}}
  {{?}}

{{? it.isTop}}
    };
    return validate;
  {{?}}

{{? it.isTop }}
  {{
    var $top = it.isTop
      , $lvl = it.level = 0
      , $dataLvl = it.dataLevel = 0
      , $data = 'data';
    it.rootId = it.resolve.fullPath(it.self._getId(it.root.schema));
    it.baseId = it.baseId || it.rootId;
    delete it.isTop;

it.dataPathArr = [""];

if (it.schema.default !== undefined && it.opts.useDefaults && it.opts.strictDefaults) {
      var $defaultMsg = 'default is ignored in the schema root';
      if (it.opts.strictDefaults === 'log') it.logger.warn($defaultMsg);
      else throw new Error($defaultMsg);
    }
  }}

if ($id) it.baseId = it.resolve.url(it.baseId, $id);

if ($async && !it.async) throw new Error('async schema in sync schema');
  }}

var errs_{{=$lvl}} = errors;
{{?}}

{{
  var $valid = 'valid' + $lvl
    , $breakOnError = !it.opts.allErrors
    , $closingBraces1 = ''
    , $closingBraces2 = '';

var $errorKeyword;
  var $typeSchema = it.schema.type
    , $typeIsArray = Array.isArray($typeSchema);

if ($typeSchema && it.opts.nullable && it.schema.nullable === true) {
    if ($typeIsArray) {
      if ($typeSchema.indexOf('null') == -1)
        $typeSchema = $typeSchema.concat('null');
    } else if ($typeSchema != 'null') {
      $typeSchema = [$typeSchema, 'null'];
      $typeIsArray = true;
    }
  }

if ($typeIsArray && $typeSchema.length == 1) {
    $typeSchema = $typeSchema[0];
    $typeIsArray = false;
  }
}}

{{## def.checkType:
  {{
    var $schemaPath = it.schemaPath + '.type'
      , $errSchemaPath = it.errSchemaPath + '/type'
      , $method = $typeIsArray ? 'checkDataTypes' : 'checkDataType';
  }}

if ({{= it.util[$method]($typeSchema, $data, it.opts.strictNumbers, true) }}) {
#}}

{{? it.schema.$ref && $refKeywords }}
  {{? it.opts.extendRefs == 'fail' }}
    {{ throw new Error('$ref: validation keywords used in schema at path "' + it.errSchemaPath + '" (see option extendRefs)'); }}
  {{?? it.opts.extendRefs !== true }}
    {{
      $refKeywords = false;
      it.logger.warn('$ref: keywords ignored in schema at path "' + it.errSchemaPath + '"');
    }}
  {{?}}
{{?}}

{{? $typeSchema }}
  {{? it.opts.coerceTypes }}
    {{ var $coerceToTypes = it.util.coerceToTypes(it.opts.coerceTypes, $typeSchema); }}
  {{?}}

{{ var $rulesGroup = it.RULES.types[$typeSchema]; }}
  {{? $coerceToTypes || $typeIsArray || $rulesGroup === true ||
    ($rulesGroup && !$shouldUseGroup($rulesGroup)) }}
    {{
      var $schemaPath = it.schemaPath + '.type'
        , $errSchemaPath = it.errSchemaPath + '/type';
    }}
    {{# def.checkType }}
      {{? $coerceToTypes }}
        {{# def.coerceType }}
      {{??}}
        {{# def.error:'type' }}
      {{?}}
    }
  {{?}}
{{?}}

{{? it.schema.$ref && !$refKeywords }}
  {{= it.RULES.all.$ref.code(it, '$ref') }}
  {{? $breakOnError }}
    }
    if (errors === {{?$top}}0{{??}}errs_{{=$lvl}}{{?}}) {
    {{ $closingBraces2 += '}'; }}
  {{?}}
{{??}}
  {{~ it.RULES:$rulesGroup }}
    {{? $shouldUseGroup($rulesGroup) }}
      {{? $rulesGroup.type }}
        if ({{= it.util.checkDataType($rulesGroup.type, $data, it.opts.strictNumbers) }}) {
      {{?}}
        {{? it.opts.useDefaults }}
          {{? $rulesGroup.type == 'object' && it.schema.properties }}
            {{# def.defaultProperties }}
          {{?? $rulesGroup.type == 'array' && Array.isArray(it.schema.items) }}
            {{# def.defaultItems }}
          {{?}}
        {{?}}
        {{~ $rulesGroup.rules:$rule }}
          {{? $shouldUseRule($rule) }}
            {{ var $code = $rule.code(it, $rule.keyword, $rulesGroup.type); }}
            {{? $code }}
              {{= $code }}
              {{? $breakOnError }}
                {{ $closingBraces1 += '}'; }}
              {{?}}
            {{?}}
          {{?}}
        {{~}}
        {{? $breakOnError }}
          {{= $closingBraces1 }}
          {{ $closingBraces1 = ''; }}
        {{?}}
      {{? $rulesGroup.type }}
        }
        {{? $typeSchema && $typeSchema === $rulesGroup.type && !$coerceToTypes }}
          else {
            {{
              var $schemaPath = it.schemaPath + '.type'
                , $errSchemaPath = it.errSchemaPath + '/type';
            }}
            {{# def.error:'type' }}
          }
        {{?}}
      {{?}}

{{? $breakOnError }}
        if (errors === {{?$top}}0{{??}}errs_{{=$lvl}}{{?}}) {
        {{ $closingBraces2 += '}'; }}
      {{?}}
    {{?}}
  {{~}}
{{?}}

{{? $top }}
    {{? $async }}
      if (errors === 0) return data;           {{ /* don't edit, used in replace */ }}
      else throw new ValidationError(vErrors); {{ /* don't edit, used in replace */ }}
    {{??}}
      validate.errors = vErrors; {{ /* don't edit, used in replace */ }}
      return errors === 0;       {{ /* don't edit, used in replace */ }}
    {{?}}
  };

return validate;
{{??}}
  var {{=$valid}} = errors === errs_{{=$lvl}};
{{?}}

{{
  function $shouldUseGroup($rulesGroup) {
    var rules = $rulesGroup.rules;
    for (var i=0; i < rules.length; i++)
      if ($shouldUseRule(rules[i]))
        return true;
  }

function $shouldUseRule($rule) {
    return it.schema[$rule.keyword] !== undefined ||
           ($rule.implements && $ruleImplementsSomeKeyword($rule));
  }

function $ruleImplementsSomeKeyword($rule) {
    var impl = $rule.implements;
    for (var i=0; i < impl.length; i++)
      if (it.schema[impl[i]] !== undefined)
        return true;
  }
}}

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