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missing extension

#4115

· TheRyanHowell opened

on Nov 1, 2014

21

Ban overwriting a parameter in Hack

#3816

· fredemmott opened

on Sep 22, 2014

14

Union Types

#8559

· azjezz opened

on Sep 8, 2019

13

RFC: remove restrictions from classes/interfaces/traits

#7358

· fredemmott opened

on Sep 19, 2016

12

Hack: Allow extending shapes

#7130

· simonwelsh opened

on Jun 5, 2016

10

hh_client/hh_server do not follow symlinks

low-pri

#2160

· sebastianbergmann opened

on Mar 24, 2014

8

Support for higher-kinded types

#2825

· mkjpryor opened

on Jun 2, 2014

6

Local TypeHinting

#4430

· steelbrain opened

on Dec 12, 2014

6

Create async version of curl_init_pooled

#7725

· eryi opened

on Mar 9, 2017

6

no way to determine if a given AsyncMysqlConnection came from the pool

#8013

· demmer opened

on Sep 29, 2017

6

[ Feature Request ] Top-level `use` statements should be permitted before namespace declarations/blocks

#8514

· lexidor opened

on Jun 9, 2019

6

Hack format string checker only handles the most basic of formats

#2122

· Aatch opened

on Mar 21, 2014

5

HHVM emit profile-translations using a worker pool

performance

#7747

· lswith opened

on Mar 24, 2017

4

HHVM does not support ARM64 Macs (M1+)

arm64

#8875

· Djakhangir opened

on Aug 23, 2021

4

Ban non-void return from construct, destruct, __clone?

low-pri

#3757

· fredemmott opened

on Sep 15, 2014

3

Cannot use final methods inside a constructor

#6613

· simonwelsh opened

on Nov 29, 2015

3

possible to include xxhash into hhvm?

#8119

· unisqu opened

on Feb 6, 2018

3

How use [rewrite_rules][conditions] with REQUEST_FILENAME in .ini?

probably easy

#7816

· brcontainer opened

on Apr 29, 2017

3

[Feature Request] Implement __LateInit for an entire class

#8533

· juanfernandoe opened

on Jul 12, 2019

3

Introduce a new `/* HH_TRACE[$var] */` annotation

#8849

· azjezz opened

on Jun 22, 2021

3

provide a way to tell the typechecker that a string classname definitely implements an interface

#5841

· fredemmott opened

on Aug 3, 2015

2

Shapes can't be recursively defined, even when it makes sense

#5594

· steelbrain opened

on Jul 5, 2015

2

Support abstract consts, ban redefining consts in all circumstances

#3005

· fredemmott opened

on Jun 20, 2014

2

Persistent sockets aren't very persistent

low-pri

no isolated repro

#6542

· apaloma opened

on Nov 11, 2015

2

Add <<__DoNotCallTwice>> attribute or similar