在 Perl 6 中的文件中存储中间数据 [英] Storing intermediate data in a file in Perl 6

问题描述

我的一些程序由两部分组成.首先，他们从文件中读取大数据并对其进行转换，生成Arrays、Hashes、Objects 等；其次，他们使用(总是不同的)用户定义的条件来分析这些数据.第一部分保持不变(只要源数据没有改变)，但有时每次运行程序都需要相当长的时间，而且我通常必须使用相同的源数据多次运行它.拥有两个程序会好得多——其中一个(一次)读取数据并对其进行转换，而另一个对其进行分析(多次).

Some of my programs consist of two parts. First, they read large data from files and transform it, producing Arrays, Hashes, Objects etc.; second, they analyse this data with (always different) user-defined conditions. The first part remains the same (as long as the source data isn't changed), but sometimes it takes considerable time to work every time I run the program, and I usually have to run it many times with the same source data. It would be much better to have two programs — one of them (once) reads the data and transforms it, while the other analyses it (many times).

我的问题是:存储那些 Arrays、Hashes 和 Objects 的最佳方法是什么，以便第一个程序写入将它们写入一个文件，第二个从该文件读取它们?

My question is: what's the best way to store those Arrays, Hashes and Objects, so that the first program writes them to a file and the second one reads them from that file?

推荐答案

您可以将数据结构写入 Perl 6 源文件并使用"它，然后它会为您预编译，这可能是将数据结构导入 Perl 6 程序的最快方法.

You can write the data structure to a Perl 6 source file and "use" it, then it'll be pre-compiled for you, which is potentially the fastest way to get a data structure into a Perl 6 program.

除此之外，JSON 有一些显着的限制，而原生 Perl 6 数据结构没有，例如整数和浮点数之间的区别，以及对 Inf、-Inf 和 NaN 的支持.也不支持复杂"对象中的键，即没有数组作为哈希键.

Other than that, JSON has some notable limitations that native Perl 6 data structures don't have, like the difference between integers and floating point numbers, and support for Inf, -Inf and NaN. There's also no support for keys in objects that are "complex", i.e. no arrays as hash keys.

MessagePack 是一个示例序列化格式，它支持 Perl 6 所能提供的大部分内容.已经有模块了，到目前为止我只使用过 Data::MessagePack，但这里是列表:https://modules.perl6.org/search/?q=messagepack

One example serialization format that supports most of what Perl 6 can throw at it is MessagePack. There's modules for it already, I have only used Data::MessagePack so far, but here's the list: https://modules.perl6.org/search/?q=messagepack

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