[ruby-core:110088] [Ruby master Feature#14900] Extra allocation in String#byteslice
From:
"ioquatix (Samuel Williams)" <noreply@...>
Date:
2022-09-26 12:50:24 UTC
List:
ruby-core #110088
SXNzdWUgIzE0OTAwIGhhcyBiZWVuIHVwZGF0ZWQgYnkgaW9xdWF0aXggKFNhbXVlbCBXaWxsaWFt cykuDQoNCg0KQnkgdGhlIHdheSwgaWRlYWxseSwgSSB0aGluayB5b3UgY2FuIGltcGxlbWVudCB0 aGlzOg0KDQpgYGBydWJ5DQpidWZmZXIgPSBTdHJpbmcubmV3ICMgYWxsb2NhdGlvbg0Kd2hpbGUg dHJ1ZQ0KCSMgRWZmaWNpZW50bHkgcmVhZCBpbnRvIHRoZSBidWZmZXI6DQoJaWYgYnVmZmVyLmVt cHR5Pw0KCQlpby5yZWFkKDEwMjQsIGJ1ZmZlcikNCgllbHNlDQoJCWJ1ZmZlciA8PCBpby5yZWFk KDEwMjQpDQoJZW5kDQoNCgkjIENvbnN1bWUgdGhlIGJ1ZmZlciBpbiBjaHVua3M6DQoJd2hpbGUg c2l6ZSA9IGNvbnN1bWUoYnVmZmVyKQ0KCQlidWZmZXIuYnl0ZXNsaWNlIShzaXplLi4tMSkgIyBz aGFyZWQgcm9vdCBzdHJpbmcgLSBubyBtZW1jcHkgb3IgYWxsb2NhdGlvbg0KCWVuZA0KZW5kDQpg YGANCg0KLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0KRmVhdHVyZSAj MTQ5MDA6IEV4dHJhIGFsbG9jYXRpb24gaW4gU3RyaW5nI2J5dGVzbGljZQ0KaHR0cHM6Ly9idWdz LnJ1YnktbGFuZy5vcmcvaXNzdWVzLzE0OTAwI2NoYW5nZS05OTM0Mw0KDQoqIEF1dGhvcjogamFu a28gKEphbmtvIE1hcm9obmnEhykNCiogU3RhdHVzOiBPcGVuDQoqIFByaW9yaXR5OiBOb3JtYWwN Ci0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0NCldoZW4gZXhlY3V0aW5n IGBTdHJpbmcjYnl0ZXNsaWNlYCB3aXRoIGEgcmFuZ2UsIEkgbm90aWNlZCB0aGF0IHNvbWV0aW1l cyB0aGUgb3JpZ2luYWwgc3RyaW5nIGlzIGFsbG9jYXRlZCBhZ2Fpbi4gV2hlbiBJIHJ1biB0aGUg Zm9sbG93aW5nIHNjcmlwdDoNCg0Kfn5+IHJ1YnkNCnJlcXVpcmUgIm9ianNwYWNlIg0KDQpzdHJp bmcgPSAiYSIgKiAxMDBfMDAwDQoNCkdDLnN0YXJ0DQpHQy5kaXNhYmxlDQpnZW5lcmF0aW9uID0g R0MuY291bnQNCg0KT2JqZWN0U3BhY2UudHJhY2Vfb2JqZWN0X2FsbG9jYXRpb25zIGRvDQogIHN0 cmluZy5ieXRlc2xpY2UoNTBfMDAwLi4tMSkNCg0KICBPYmplY3RTcGFjZS5lYWNoX29iamVjdChT dHJpbmcpIGRvIHxzdHJpbmd8DQogICAgcCBzdHJpbmcuYnl0ZXNpemUgaWYgT2JqZWN0U3BhY2Uu YWxsb2NhdGlvbl9nZW5lcmF0aW9uKHN0cmluZykgPT0gZ2VuZXJhdGlvbg0KICBlbmQNCmVuZA0K fn5+DQoNCml0IG91dHB1dHMNCg0Kfn5+DQo1MDAwMA0KMTAwMDAwDQo2DQo1DQp+fn4NCg0KVGhl IG9uZSB3aXRoIDUwMDAwIGJ5dGVzIGlzIHRoZSByZXN1bHQgb2YgYFN0cmluZyNieXRlc2xpY2Vg LCBidXQgdGhlIG9uZSB3aXRoIDEwMDAwMCBieXRlcyBpcyB0aGUgZHVwbGljYXRlZCBvcmlnaW5h bCBzdHJpbmcuIEkgZXhwZWN0ZWQgb25seSB0aGUgcmVzdWx0IG9mIGBTdHJpbmcjYnl0ZXNsaWNl YCB0byBiZSBhbW9uZ3N0IG5ldyBhbGxvY2F0aW9ucy4NCg0KSWYgaW5zdGVhZCBvZiB0aGUgbGFz dCA1MDAwMCBieXRlcyBJIHNsaWNlIHRoZSAqZmlyc3QqIDUwMDAwIGJ5dGVzLCB0aGUgZXh0cmEg ZHVwbGljYXRpb24gZG9lc24ndCBvY2N1ci4NCg0Kfn5+IHJ1YnkNCiMgLi4uDQogIHN0cmluZy5i eXRlc2xpY2UoMCwgNTBfMDAwKQ0KIyAuLi4NCn5+fg0KDQp+fn4NCjUwMDAwDQo1DQp+fn4NCg0K SXQncyBkZWZpbml0ZWx5IG9rIGlmIHRoZSBpbXBsZW1lbnRhdGlvbiBvZiBgU3RyaW5nI2J5dGVz aXplYCBhbGxvY2F0ZXMgZXh0cmEgc3RyaW5ncyBhcyBwYXJ0IG9mIHRoZSBpbXBsZW1lbnRhdGlv biwgYnV0IGl0IHdvdWxkIGJlIG5pY2UgaWYgdGhleSB3ZXJlIGRlYWxsb2NhdGVkIGJlZm9yZSBy ZXR1cm5pbmcgdGhlIHJlc3VsdC4NCg0KRURJVDogSXQgc2VlbXMgdGhhdCBgU3RyaW5nI3NsaWNl YCBoYXMgdGhlIHNhbWUgaXNzdWUuDQoNCg0KDQotLSANCmh0dHBzOi8vYnVncy5ydWJ5LWxhbmcu b3JnLw0KClVuc3Vic2NyaWJlOiA8bWFpbHRvOnJ1YnktY29yZS1yZXF1ZXN0QHJ1YnktbGFuZy5v cmc/c3ViamVjdD11bnN1YnNjcmliZT4KPGh0dHA6Ly9saXN0cy5ydWJ5LWxhbmcub3JnL2NnaS1i aW4vbWFpbG1hbi9vcHRpb25zL3J1YnktY29yZT4K