presto-parser/src/main/java/io/prestosql/sql/tree/StringLiteral.java/StringLiteral/StringLiteral
class StringLiteral:    private StringLiteral(Optional<NodeLocation> location, String value)
    {
        super(location);
        requireNonNull(value, "value is null");
        this.value = value;
        this.slice = utf8Slice(value);
    }