<fim-prefix>or("may only be " + schema.maxLength + " characters long");
				}
				if(schema.minLength && typeof value == 'string' && value.length < schema.minLength){
					addError("must be at least " + schema.minLength + " characters long");
				}
				if(typeof schema.minimum !== 'undefined' && typeof value == typeof schema.minimum &&
						schema.minimum > value){
					addError("must have a minimum value of " + schema.minimum);
				}
				if(typeof schema.maximum !== 'undefined' && typeof value == typeof schema.maximum &&
						schema.maximum < value){
					addError("must have a maximum value of " + schema.maximum);
				}
				if(schema['enum']){
					var enumer = schema['enum'];
					l = enumer.length;
					var found;
					for(var j = 0; j < l; j++){
						if(enumer[j]===value){
							found=1;
							break;
						}
					}
					if(!found){
						addError("does not have a value in the enumeration " + enumer.join(", "));
					}
				}
				if(typeof schema.maxDecimal == 'number' &&
					(value.toString().match(new RegExp("\\.[0-9]{" + (schema.maxDecimal + 1) + ",}")))){
					addError("may only have " + schema.maxDecimal + " digits of decimal places");
				}
			}
		}
		return null;
	}
	// validate an object against a schema
	function checkObj(instance,objTypeDef,path,additionalProp){

		if(typeof objTypeDef =='object'){
			if(typeof instance != 'object' || instance instanceof Array){
				errors.push({property:path,message:"an object is required"});
			}
			
			for(var i in objTypeDef){ 
				// BUG: CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
				// if(objTypeDef.hasOwnProperty(i)){
				// FIXED: 
<fim-middle>				if(objTypeDef.hasOwnProperty(i) && i != '__proto__'){
					var value = instance[i];
					// skip _not_ specified properties
					if (value === undefined && options.existingOnly) continue;
					var <fix-suffix>propDef = objTypeDef[i];
					// set default
					if(value === undefined && propDef["default"]){
						value = instance[i] = propDef["default"];
					}
					if(options.coerce && i in instance){
						value = instance[i] = options.coerce(value, propDef);
					}
					checkProp(value,propDef,path,i);
				}
			}
		}
		for(i in instance){
			if(instance.hasOwnProperty(i) && !(i.charAt(0) == '_' && i.charAt(1) == '_') && objTypeDef && !objTypeDef[i] && additionalProp===false){
				if (options.filter) {
					delete instance[i];
					continue;
				} else {
					errors.push({property:path,message:"The property " + i +
						" is not defined in the schema and the schema does not allow additional properties"});
				}
			}
			var requires = objTypeDef && objTypeDef[i] && objTypeDef[i].requires;
			if(requires && !(requires in instance)){
				errors.push({property:path,message:"the presence of the property " + i + " requires that " + requires + " also be present"});
			}
			value = instance[i];
			<|endoftext|>