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'use strict'
const constants = require('../constants')
const formatUtils = require('../formatUtils')
const lineBuilder = require('../lineBuilder')
const DEEP_EQUAL = constants.DEEP_EQUAL
const UNEQUAL = constants.UNEQUAL
function describe () {
return new UndefinedValue()
}
exports.describe = describe
exports.deserialize = describe
const tag = Symbol('UndefinedValue')
exports.tag = tag
class UndefinedValue {
compare (expected) {
return expected.tag === tag
? DEEP_EQUAL
: UNEQUAL
}
formatDeep (theme) {
return lineBuilder.single(formatUtils.wrap(theme.undefined, 'undefined'))
}
}
Object.defineProperty(UndefinedValue.prototype, 'isPrimitive', { value: true })
Object.defineProperty(UndefinedValue.prototype, 'tag', { value: tag })