view tests/test-issue1877.t @ 28392:b983a2f04987

registrar: introduce new class for registration to replace funcregistrar

_funcregistrarbase differs from funcregistrar in points below:

  - every code paths should use same class derived from
    _funcregistrarbase to register functions in a same category

    funcregistrar expects (3rd party) extensions to use (a class
    derived from) delayregistrar.

  - actual extra setup should be executed in another function

    For example, marking revset predicate as "safe" is executed in a
    class derived from _funcregistrarbase, but putting name of "safe"
    predicate into safesymbols is executed in another function for it.

    funcregistrar expects derived classes to do so.

New class is named as module private one, because code paths, which
register functions, should use not it directly but one derived from
it.

https://bz.mercurial-scm.org/1877

  $ hg init a
  $ cd a
  $ echo a > a
  $ hg add a
  $ hg ci -m 'a'
  $ echo b > a
  $ hg ci -m'b'
  $ hg up 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg book main
  $ hg book
   * main                      0:cb9a9f314b8b
  $ echo c > c
  $ hg add c
  $ hg ci -m'c'
  created new head
  $ hg book
   * main                      2:d36c0562f908
  $ hg heads
  changeset:   2:d36c0562f908
  bookmark:    main
  tag:         tip
  parent:      0:cb9a9f314b8b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     c
  
  changeset:   1:1e6c11564562
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     b
  
  $ hg up 1e6c11564562
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  (leaving bookmark main)
  $ hg merge main
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg book
     main                      2:d36c0562f908
  $ hg ci -m'merge'
  $ hg book
     main                      2:d36c0562f908

  $ cd ..