ruby-dev

原です。

In message "[ruby-dev:7702] Re: [ruby-ext:00382] New coerce scheme"
    on 99/08/17, toyofuku@juice.or.jp <toyofuku@juice.or.jp> writes:
|
|  豊福＠パパイヤです。

|原さん
|> ただ、(ii) があれば (iii) はほとんど必要ないですよね。前に
|> 必要になる例をあげていただいた覚えがありますが。
|
|  私覚えてないんですがどんな例でしたっけ。

例えば 2 で割れない分母を持つ分数クラスと 3 で割れない分母を
持つ分数クラスどうしの和とかです。どちらも相手をどう扱ってい
いかわからない。豊福さんがあげたのは前者を違う文脈で、でした。
(^^;

|>>   「左側からのop」をどう表現するのかとか、それがないとき
|>> どう (左側からの一般的演算用処理)(op, other) に変換するのか
|>> とかは全然考えてないです。
|> 
|> 字句解析上可能かどうかわからないのですが、２項演算子の後ろ
|> に ! を付けて反対にしたらどうでしょう。
|
| 二項演算的なものには div などのように記号じゃないものも
|ありそうですから、それに ! をつけると div! のように破壊的
|メソッドっぽくなりますね。

二項演算はもともとすべて破壊的でないので、混乱はないのでは?

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[#7542] Re: [PATCH] for mswin32 final — KIMURA Koichi <kbk@...>

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[#7569] Re: [PATCH] for ruby-1.3.7 (mswin32) — KIMURA Koichi <kbk@...>

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[#7735] Re: [ruby-ext:00382] New coerce scheme — toyofuku@...

[#7738] Re: [ruby-ext:00382] New coerce scheme — toyofuku@...

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[ruby-dev:7709] Re: [ruby-ext:00382] New coerce scheme

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[#7544] Re: [PATCH] for mswin32 final — 助田　雅紀 <masaki.suketa@...>