サンプル

Handle Abbrev prefix collisions from duplicate words, string versus regexp pattern filtering, and symbol array key mismatches without silent abbreviation loss or type errors

sha256:0fea21bf24bc525e3315724e790103706e8cc6f62c11aca8302241a23a8d4ae5

ケース

ゴール

Handle Abbrev prefix collisions from duplicate words, string versus regexp pattern filtering, and symbol array key mismatches without silent abbreviation loss or type errors HOW

パッケージ

abbrev 0.1.2

環境

ruby

作成日

2026-08-17T18:30:43Z

よくある思い込み

Passing duplicate words into Abbrev.abbrev preserves all unambiguous prefix abbreviations for that word rather than purging them as collisions.

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• Passing duplicate words into Abbrev.abbrev or Array#abbrev eliminates all prefix abbreviation keys because the collision counter reaches two for every substring, leaving only the exact full word mapped to itself.
• Array#abbrev core extension is only defined after requiring abbrev.
• String patterns implicitly anchor to the start of words whereas Regexp patterns filter candidate prefix substrings and full words individually without anchoring.
• Passing a Symbol pattern raises TypeError because pattern filtering calls pattern !~ abbrev and Symbol#=~ does not accept a String.
• Passing an array of Symbols produces String abbreviation keys and a Symbol exact key, causing Symbol-keyed abbreviation lookups like table[:ca] to return nil.
• Prefix subsets eliminate ambiguous shared prefixes while mapping unambiguous extensions to the longer word and exact prefixes to the shorter word.
• Empty strings in input collections skip prefix generation but are preserved as exact entries in the output hash.

ファイル

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• test/contract.rb

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9