Function identifierNameEscape

lib/parse.js:359–383

()

    },

    identifierNameEscape () {
        if (c !== 'u') {
            throw invalidChar(read())
        }

        read()
        const u = unicodeEscape()
        switch (u) {
        case '$':
        case '_':
        case '\u200C':
        case '\u200D':
            break

        default:
            if (!util.isIdContinueChar(u)) {
                throw invalidIdentifier()
            }

            break
        }

        buffer += u
        lexState = 'identifierName'
    },

    sign () {
        switch (c) {