[ruby-core:108213] [Ruby master Bug#18155] (nil..nil).cover?(x) is true for all x since beginless ranges were introduced
From:
"sawa (Tsuyoshi Sawada)" <noreply@...>
Date:
2022-04-12 06:34:46 UTC
List:
ruby-core #108213
SXNzdWUgIzE4MTU1IGhhcyBiZWVuIHVwZGF0ZWQgYnkgc2F3YSAoVHN1eW9zaGkgU2F3YWRhKS4K CgpJIGRvIG5vdCB1bmRlcnN0YW5kIHRoZSBsb2dpYyBiZWhpbmQgb3B0aW9uIDIuIEkgd291bGQg cmF0aGVyIGV4cGVjdCB0aGlzIGxvZ2ljOgoKPiBhIGJlZ2lubGVzcy1hbmQtZW5kbGVzcyByYW5n ZSBoYXMgbm8gdHlwZSwgc28gaXQgaW1wb3NlcyBubyByZXN0cmljdGlvbiBvbiB0aGUgdHlwZQoK d2hpY2ggd291bGQgbGVhZCB1cyB0byBvcHRpb24gMS4gSXRzIGNvdmVyYWdlIHNob3VsZCByZXR1 cm4gYHRydWVgIGZvciBhbnkgb2JqZWN0LgoKVG8gbXkgdW5kZXJzdGFuZGluZywgdGhlIGJlZ2lu IHZhbHVlIHJlc3RyaWN0cyB0aGUgcmFuZ2UgYnkgaW1wb3NpbmcgYSBtaW5pbXVtICh0eXBlIGFu ZCB2YWx1ZSksIGFuZCB0aGUgZW5kIHZhbHVlIHJlc3RyaWN0cyB0aGUgcmFuZ2UgYnkgaW1wb3Np bmcgYSBtYXhpbXVtICh0eXBlIGFuZCB2YWx1ZSkuIExhY2tpbmcgb25lIG9mIHRoZW0gbWVhbnMg aXQgaXMgcmVzdHJpY3RlZCBvbmx5IGluIG9uZSBlbmQsIGxhY2tpbmcgYm90aCBvZiB0aGVtIHNo b3VsZCBtZWFuIGl0IGlzIHJlc3RyaWN0ZWQgaW4gbmVpdGhlciBlbmQuCgoKLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQpCdWcgIzE4MTU1OiAobmlsLi5uaWwpLmNvdmVy Pyh4KSBpcyB0cnVlIGZvciBhbGwgeCBzaW5jZSBiZWdpbmxlc3MgcmFuZ2VzIHdlcmUgaW50cm9k dWNlZApodHRwczovL2J1Z3MucnVieS1sYW5nLm9yZy9pc3N1ZXMvMTgxNTUjY2hhbmdlLTk3MTk2 CgoqIEF1dGhvcjogdXJiYW5hdXRvbWF0b24gKFNpbW9uIENvZmZleSkKKiBTdGF0dXM6IE9wZW4K KiBQcmlvcml0eTogTm9ybWFsCiogcnVieSAtdjogMi43LjAgYW5kIGdyZWF0ZXIKKiBCYWNrcG9y dDogMi42OiBVTktOT1dOLCAyLjc6IFVOS05PV04sIDMuMDogVU5LTk9XTgotLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCiMjIyBEZXNjcmlwdGlvbgoKVGhlIGludHJvZHVj dGlvbiBvZiBiZWdpbmxlc3MgcmFuZ2VzIGluICMxNDc5OSBjaGFuZ2VkIHRoZSBiZWhhdmlvdXIg b2YgYFJhbmdlI2NvdmVyP2Agd2hlbiBib3RoIHRoZSBiZWdpbm5pbmcgYW5kIHRoZSBlbmQgb2Yg YSBgUmFuZ2VgIGFyZSBgbmlsYC4gUHJldmlvdXNseSBzdWNoIGEgcmFuZ2Ugd291bGQgY292ZXIg bm8gdmFsdWVzOyBub3cgaXQgY292ZXJzIGFsbCB2YWx1ZXM6CgpgYGAKaXJiLTIuNi42PiAobmls Li5uaWwpLmNvdmVyPygiMjMgZG9ncyIpCj0+IGZhbHNlCgppcmItMi43LjA+IChuaWwuLm5pbCku Y292ZXI/KCIyMyBkb2dzIikKPT4gdHJ1ZQpgYGAKClRoaXMgY2hhbmdlIHdhcyBbbm90ZWQgYXQg dGhlIHRpbWVdKGh0dHBzOi8vYnVncy5ydWJ5LWxhbmcub3JnL2lzc3Vlcy8xNDc5OSNub3RlLTEy KSwgYnV0IGl0IHdhcyBiZWxpZXZlZCB0aGF0IHRoZSBjYWxsIHdvdWxkIGhhdmUgcHJldmlvdXNs eSByYWlzZWQgYW4gZXJyb3IgaW5zdGVhZCBvZiByZXR1cm5pbmcgYGZhbHNlYC4gSSd2ZSBub3Qg ZXhoYXVzdGl2ZWx5IGNoZWNrZWQsIGJ1dCB0aGUgb2xkIGJlaGF2aW91ciBnb2VzIGJhY2sgdG8g YXQgbGVhc3QgcnVieSAyLjIuCgojIyMgRGlzY3Vzc2lvbgoKSSdtIG5vdCBzdXJlIHRoYXQgZWl0 aGVyIG9mIHRoZXNlIHJlc3VsdHMgYXJlICJjb3JyZWN0Iiwgc2luY2UgSSdtIG5vdCBzdXJlIHRo YXQgdGhlIGNvbmNlcHQgb2YgYSByYW5nZSB3aXRoIG5vIGJlZ2lubmluZyBvciBlbmQgaXMgbWVh bmluZ2Z1bC4gV2l0aG91dCBlaXRoZXIgcGFyYW1ldGVyLCBpdCBzZWVtcyBpbXBvc3NpYmxlIHRv IGluZmVyIHRoZSB2YWx1ZXMgaXQgcmFuZ2VzIG92ZXIsIHNpbmNlIHdlIGhhdmUgbm8gdHlwZSBp bmZvcm1hdGlvbiBhdmFpbGFibGUuCgpIb3dldmVyLCBJIGRpZCBmaW5kIGJvdGggdGhlIGN1cnJl bnQgcmVzdWx0IGFuZCB0aGUgY2hhbmdlIGluIGJlaGF2aW91ciBxdWl0ZSBzdXJwcmlzaW5nLCBz byBJJ3ZlIG9wZW5lZCB0aGlzIGlzc3VlLgoKU29tZSBvcHRpb25zIEkgY29uc2lkZXJlZDoKCjEu ICoqRG8gbm90aGluZzoqKiBhIGJlZ2lubGVzcy1hbmQtZW5kbGVzcyByYW5nZSBpcyB1bmJvdW5k ZWQgaW4gYm90aCB2YWx1ZSBhbmQgdHlwZSwgc28gY292ZXJzIGFsbCB2YWx1ZXMgb2YgYWxsIHR5 cGVzCjIuICoqUmVpbnN0YXRlIHRoZSBvbGQgYmVoYXZpb3VyOioqIGEgYmVnaW5sZXNzLWFuZC1l bmRsZXNzIHJhbmdlIGhhcyBubyB0eXBlLCBzbyBjb3ZlcnMgbm8gdmFsdWVzCjMuICoqUmFpc2Ug YW4gZXJyb3I6KiogYSBiZWdpbmxlc3MtYW5kLWVuZGxlc3MgcmFuZ2UgaXMgbWVhbmluZ2xlc3Ms IHNvIGNvbnN0cnVjdGluZyBvbmUgc2hvdWxkIHJhaXNlIGFuIGVycm9yCgpNeSBwZXJzb25hbCBw cmVmZXJlbmNlIGlzIG9wdGlvbiAzLCBidXQgSSBjYW4gY2xlYXJseSBzZWUgdGhhdCBpdCByZXBy ZXNlbnRzIHRoZSBtb3N0IGVmZm9ydC4gSSdkIHdlbGNvbWUgcGVvcGxlJ3MgdGhvdWdodHM7IGlm IG9wdGlvbiAxIGlzIHByZWZlcnJlZCwgSSdkIGJlIGhhcHB5IHRvIGNvbnRyaWJ1dGUgYSBkb2N1 bWVudGF0aW9uIHBhdGNoIHRvIG1ha2UgdGhlIG5ldyBiZWhhdmlvdXIgY2xlYXIuCgotLS1GaWxl cy0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCnJhbmdlLTE4MTU1LnBhdGNoICgxLjA4 IEtCKQoKCi0tIApodHRwczovL2J1Z3MucnVieS1sYW5nLm9yZy8KClVuc3Vic2NyaWJlOiA8bWFp bHRvOnJ1YnktY29yZS1yZXF1ZXN0QHJ1YnktbGFuZy5vcmc/c3ViamVjdD11bnN1YnNjcmliZT4K PGh0dHA6Ly9saXN0cy5ydWJ5LWxhbmcub3JnL2NnaS1iaW4vbWFpbG1hbi9vcHRpb25zL3J1Ynkt Y29yZT4K