| 1 |  |  | package validation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | import ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | 	"fmt" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | 	"time" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | 	"github.com/muonsoft/validation/code" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | 	"github.com/muonsoft/validation/generic" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | 	"github.com/muonsoft/validation/message" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | 	"golang.org/x/text/language" | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | // Argument used to set up the validation process. It is used to set up the current validation scope and to pass | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | // arguments for validation values. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | type Argument interface { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | 	set(arguments *Arguments) error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | type argumentFunc func(arguments *Arguments) error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | func (f argumentFunc) set(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 | 1 |  | 	return f(arguments) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | type Arguments struct { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	scope      Scope | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 	validators []validateFunc | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | func (args *Arguments) addValidator(validator validateFunc) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 | 1 |  | 	args.validators = append(args.validators, validator) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | // Value argument is used to validate any supported value. It uses reflection to detect the type of the argument | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | // and pass it to a specific validation method. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | // | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | // If the validator cannot determine the value or it is not supported, then NotValidatableError will be returned | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | // when calling the validator.Validate method. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | func Value(value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 | 1 |  | 		v, err := newValueValidator(value, options) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 | 1 |  | 		if err != nil { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 | 1 |  | 			return err | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 | 1 |  | 		arguments.addValidator(v) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | // PropertyValue argument is an alias for Value that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | func PropertyValue(name string, value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 | 1 |  | 	return Value(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | // Bool argument is used to validate boolean values. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | func Bool(value bool, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 | 1 |  | 		arguments.addValidator(newBoolValidator(&value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | // BoolProperty argument is an alias for Bool that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | func BoolProperty(name string, value bool, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 | 1 |  | 	return Bool(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | // NilBool argument is used to validate nillable boolean values. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | func NilBool(value *bool, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 | 1 |  | 		arguments.addValidator(newBoolValidator(value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | // NilBoolProperty argument is an alias for NilBool that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | func NilBoolProperty(name string, value *bool, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 1 |  | 	return NilBool(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  | // Number argument is used to validate numbers (any types of integers or floats). At the moment it uses | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  | // reflection to detect numeric value. Given value is internally converted into int64 or float64 to make comparisons. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  | // | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  | // Warning! This method will be changed after generics implementation in Go. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  | func Number(value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 | 1 |  | 		number, err := generic.NewNumber(value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 | 1 |  | 		if err != nil { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 | 1 |  | 			return fmt.Errorf(`cannot convert value "%v" to number: %w`, value, err) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 | 1 |  | 		arguments.addValidator(newNumberValidator(*number, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | // NumberProperty argument is an alias for Number that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | func NumberProperty(name string, value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 | 1 |  | 	return Number(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | // String argument is used to validate strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  | func String(value string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 | 1 |  | 		arguments.addValidator(newStringValidator(&value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | // StringProperty argument is an alias for String that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | func StringProperty(name string, value string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 | 1 |  | 	return String(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  | // NilString argument is used to validate nillable strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | func NilString(value *string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 | 1 |  | 		arguments.addValidator(newStringValidator(value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  | // NilStringProperty argument is an alias for NilString that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | func NilStringProperty(name string, value *string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 | 1 |  | 	return NilString(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  | // Strings argument is used to validate slice of strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | func Strings(values []string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 | 1 |  | 		arguments.addValidator(newStringsValidator(values, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  | // StringsProperty argument is an alias for Strings that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  | func StringsProperty(name string, values []string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 | 1 |  | 	return Strings(values, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  | // Iterable argument is used to validate arrays, slices, or maps. At the moment it uses reflection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  | // to iterate over values. So you can expect a performance hit using this method. For better performance | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  | // it is recommended to make a custom type that implements the Validatable interface. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  | // | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  | // Warning! This argument is subject to change in the final versions of the library. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  | func Iterable(value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 | 1 |  | 		iterable, err := generic.NewIterable(value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 | 1 |  | 		if err != nil { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 | 1 |  | 			return fmt.Errorf(`cannot convert value "%v" to iterable: %w`, value, err) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 | 1 |  | 		arguments.addValidator(newIterableValidator(iterable, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  | // IterableProperty argument is an alias for Iterable that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  | func IterableProperty(name string, value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 | 1 |  | 	return Iterable(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  | // Countable argument can be used to validate size of an array, slice, or map. You can pass result of len() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  | // function as an argument. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  | func Countable(count int, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 | 1 |  | 		arguments.addValidator(newCountableValidator(count, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  | // CountableProperty argument is an alias for Countable that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  | func CountableProperty(name string, count int, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 | 1 |  | 	return Countable(count, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  | // Time argument is used to validate time.Time value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  | func Time(value time.Time, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 | 1 |  | 		arguments.addValidator(newTimeValidator(&value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  | // TimeProperty argument is an alias for Time that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  | func TimeProperty(name string, value time.Time, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 | 1 |  | 	return Time(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  | // NilTime argument is used to validate nillable time.Time value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  | func NilTime(value *time.Time, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 | 1 |  | 		arguments.addValidator(newTimeValidator(value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  | // NilTimeProperty argument is an alias for NilTime that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  | func NilTimeProperty(name string, value *time.Time, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 | 1 |  | 	return NilTime(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  | // Each is used to validate each value of iterable (array, slice, or map). At the moment it uses reflection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  | // to iterate over values. So you can expect a performance hit using this method. For better performance | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  | // it is recommended to make a custom type that implements the Validatable interface. Also, you can use | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  | // EachString argument to validate slice of strings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  | // | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  | // Warning! This argument is subject to change in the final versions of the library. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  | func Each(value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 | 1 |  | 		iterable, err := generic.NewIterable(value) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 | 1 |  | 		if err != nil { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 | 1 |  | 			return fmt.Errorf(`cannot convert value "%v" to iterable: %w`, value, err) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 | 1 |  | 		arguments.addValidator(newEachValidator(iterable, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  | // EachProperty argument is an alias for Each that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  | func EachProperty(name string, value interface{}, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 | 1 |  | 	return Each(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  | // EachString is used to validate a slice of strings. This is a more performant version of Each argument. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  | func EachString(values []string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 | 1 |  | 		arguments.addValidator(newEachStringValidator(values, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  | // EachStringProperty argument is an alias for EachString that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  | func EachStringProperty(name string, values []string, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 | 1 |  | 	return EachString(values, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  | // Valid is used to run validation on the Validatable type. This method is recommended | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  | // to build a complex validation process. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  | func Valid(value Validatable, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 | 1 |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 | 1 |  | 		arguments.addValidator(newValidValidator(value, options)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 | 1 |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  | // ValidProperty argument is an alias for Valid that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  | func ValidProperty(name string, value Validatable, options ...Option) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 | 1 |  | 	return Valid(value, append([]Option{PropertyName(name)}, options...)...) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 266 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 267 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 268 |  |  | // CheckNoViolations is a special argument that checks err for violations. If err contains Violation or ViolationList | 
            
                                                                                                            
                            
            
                                    
            
            
                | 269 |  |  | // then these violations will be appended into returned violation list from the validator. If err contains an error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 270 |  |  | // that does not implement an error interface, then the validation process will be terminated and | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 271 | 1 |  | // this error will be returned. | 
            
                                                                        
                            
            
                                    
            
            
                | 272 |  |  | func CheckNoViolations(err error) Argument { | 
            
                                                                        
                            
            
                                    
            
            
                | 273 |  |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                        
                            
            
                                    
            
            
                | 274 |  |  | 		arguments.addValidator(func(scope Scope) (*ViolationList, error) { | 
            
                                                                        
                            
            
                                    
            
            
                | 275 |  |  | 			violations := NewViolationList() | 
            
                                                                        
                            
            
                                    
            
            
                | 276 |  |  | 			fatal := violations.AppendFromError(err) | 
            
                                                                        
                            
            
                                    
            
            
                | 277 |  |  | 			if fatal != nil { | 
            
                                                                        
                            
            
                                    
            
            
                | 278 |  |  | 				return nil, fatal | 
            
                                                                        
                            
            
                                    
            
            
                | 279 |  |  | 			} | 
            
                                                                        
                            
            
                                    
            
            
                | 280 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 281 | 1 |  | 			return violations, nil | 
            
                                                                        
                            
            
                                    
            
            
                | 282 |  |  | 		}) | 
            
                                                                        
                            
            
                                    
            
            
                | 283 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 284 |  |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 285 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 286 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 287 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 288 |  |  | // Check argument can be useful for quickly checking the result of some simple expression | 
            
                                                                                                            
                            
            
                                    
            
            
                | 289 |  |  | // that returns a boolean value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 290 |  |  | func Check(isValid bool) Checker { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 291 | 1 |  | 	return Checker{ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 292 | 1 |  | 		isValid:         isValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 293 |  |  | 		code:            code.NotValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 294 | 1 |  | 		messageTemplate: message.NotValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 295 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 296 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 297 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 298 |  |  | // CheckProperty argument is an alias for Check that automatically adds property name to the current scope. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 299 |  |  | // It is useful to apply a simple checks on structs. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 300 |  |  | func CheckProperty(name string, isValid bool) Checker { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 301 | 1 |  | 	return Checker{ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 302 | 1 |  | 		propertyName:    name, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 303 |  |  | 		isValid:         isValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 304 | 1 |  | 		code:            code.NotValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 305 |  |  | 		messageTemplate: message.NotValid, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 306 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 307 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 308 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 309 |  |  | // Language argument sets the current language for translation of a violation message. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 310 |  |  | func Language(tag language.Tag) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 311 |  |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 312 |  |  | 		arguments.scope.language = tag | 
            
                                                                                                            
                            
            
                                    
            
            
                | 313 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 314 |  |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 315 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 316 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 317 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 318 |  |  | // NewArgument can be used to implement your own validation arguments for the specific types. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 319 |  |  | // See example for more details. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 320 |  |  | func NewArgument(options []Option, validate ValidateByConstraintFunc) Argument { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 321 |  |  | 	return argumentFunc(func(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 322 | 1 |  | 		arguments.addValidator(newValidator(options, validate)) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 323 | 1 |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 324 |  |  | 		return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 325 |  |  | 	}) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 326 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 327 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 328 | 1 |  | // Checker is an argument that can be useful for quickly checking the result of | 
            
                                                                                                            
                            
            
                                    
            
            
                | 329 | 1 |  | // some simple expression that returns a boolean value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 330 |  |  | type Checker struct { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 331 |  |  | 	isIgnored         bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 332 |  |  | 	isValid           bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 333 |  |  | 	propertyName      string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 334 |  |  | 	code              string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 335 | 1 |  | 	messageTemplate   string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 336 | 1 |  | 	messageParameters TemplateParameterList | 
            
                                                                                                            
                            
            
                                    
            
            
                | 337 | 1 |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 338 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 339 |  |  | // When enables conditional validation of this constraint. If the expression evaluates to false, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 340 |  |  | // then the constraint will be ignored. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 341 | 1 |  | func (c Checker) When(condition bool) Checker { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 342 | 1 |  | 	c.isIgnored = !condition | 
            
                                                                                                            
                            
            
                                    
            
            
                | 343 |  |  | 	return c | 
            
                                                                                                            
                            
            
                                    
            
            
                | 344 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 345 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 346 | 1 |  | // Code overrides default code for produced violation. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 347 | 1 |  | func (c Checker) Code(code string) Checker { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 348 |  |  | 	c.code = code | 
            
                                                                                                            
                            
            
                                    
            
            
                | 349 | 1 |  | 	return c | 
            
                                                                                                            
                            
            
                                    
            
            
                | 350 | 1 |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 351 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 352 |  |  | // Message sets the violation message template. You can set custom template parameters | 
            
                                                                                                            
                            
            
                                    
            
            
                | 353 | 1 |  | // for injecting its values into the final message. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 354 |  |  | func (c Checker) Message(template string, parameters ...TemplateParameter) Checker { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 355 |  |  | 	c.messageTemplate = template | 
            
                                                                                                            
                            
            
                                    
            
            
                | 356 |  |  | 	c.messageParameters = parameters | 
            
                                                                                                            
                            
            
                                    
            
            
                | 357 | 1 |  | 	return c | 
            
                                                                                                            
                            
            
                                    
            
            
                | 358 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 359 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 360 |  |  | func (c Checker) set(arguments *Arguments) error { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 361 |  |  | 	arguments.addValidator(c.validate) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 362 |  |  | 	return nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 363 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 364 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 365 |  |  | func (c Checker) validate(scope Scope) (*ViolationList, error) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 366 |  |  | 	if c.isValid || c.isIgnored { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 367 |  |  | 		return nil, nil | 
            
                                                                                                            
                            
            
                                    
            
            
                | 368 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 369 |  |  | 	if c.propertyName != "" { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 370 |  |  | 		scope = scope.AtProperty(c.propertyName) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 371 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 372 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 373 |  |  | 	violation := scope.BuildViolation(c.code, c.messageTemplate). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 374 |  |  | 		SetParameters(c.messageParameters...). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 375 |  |  | 		CreateViolation() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 376 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 377 |  |  | 	return NewViolationList(violation), nil | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 378 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 379 |  |  |  |