There are cases where ruby is installed without rdoc and e.g.
lib/irb/cmd/help.rb also handles the LoadError
Here is how to replicate the issue:
```
$ docker run -it alpine:3.13.3 sh
/ # apk add ruby ruby-irb ruby-io-console
/ # irb
irb(main):001:0> Class[TAB][TAB]
```
And you end up with something like:
```
irb(main):001:0> ClassTraceback (most recent call last):
34: from /usr/bin/irb:23:in `<main>'
33: from /usr/bin/irb:23:in `load'
32: from /usr/lib/ruby/gems/2.7.0/gems/irb-1.2.6/exe/irb:11:in `<top (required)>'
31: from /usr/lib/ruby/2.7.0/irb.rb:400:in `start'
30: from /usr/lib/ruby/2.7.0/irb.rb:471:in `run'
29: from /usr/lib/ruby/2.7.0/irb.rb:471:in `catch'
28: from /usr/lib/ruby/2.7.0/irb.rb:472:in `block in run'
27: from /usr/lib/ruby/2.7.0/irb.rb:537:in `eval_input'
26: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:150:in `each_top_level_statement'
25: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:150:in `catch'
24: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:151:in `block in each_top_level_statement'
23: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:151:in `loop'
22: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:154:in `block (2 levels) in each_top_level_statement'
21: from /usr/lib/ruby/2.7.0/irb/ruby-lex.rb:182:in `lex'
20: from /usr/lib/ruby/2.7.0/irb.rb:518:in `block in eval_input'
19: from /usr/lib/ruby/2.7.0/irb.rb:704:in `signal_status'
18: from /usr/lib/ruby/2.7.0/irb.rb:519:in `block (2 levels) in eval_input'
17: from /usr/lib/ruby/2.7.0/irb/input-method.rb:294:in `gets'
16: from /usr/lib/ruby/2.7.0/forwardable.rb:235:in `readmultiline'
15: from /usr/lib/ruby/2.7.0/forwardable.rb:235:in `readmultiline'
14: from /usr/lib/ruby/2.7.0/reline.rb:175:in `readmultiline'
13: from /usr/lib/ruby/2.7.0/reline.rb:238:in `inner_readline'
12: from /usr/lib/ruby/2.7.0/reline.rb:238:in `loop'
11: from /usr/lib/ruby/2.7.0/reline.rb:239:in `block in inner_readline'
10: from /usr/lib/ruby/2.7.0/reline.rb:270:in `read_io'
9: from /usr/lib/ruby/2.7.0/reline.rb:270:in `loop'
8: from /usr/lib/ruby/2.7.0/reline.rb:311:in `block in read_io'
7: from /usr/lib/ruby/2.7.0/reline.rb:240:in `block (2 levels) in inner_readline'
6: from /usr/lib/ruby/2.7.0/reline.rb:240:in `each'
5: from /usr/lib/ruby/2.7.0/reline.rb:241:in `block (3 levels) in inner_readline'
4: from /usr/lib/ruby/2.7.0/reline/line_editor.rb:820:in `input_key'
3: from /usr/lib/ruby/2.7.0/reline/line_editor.rb:608:in `complete'
2: from /usr/lib/ruby/2.7.0/irb/completion.rb:269:in `block in <module:InputCompletor>'
1: from /usr/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
/usr/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require': cannot load such file -- rdoc (LoadError)
```
a2d299c2ac
* Reverts part of 3198e7abd7.
* If the rule is #send should be deprecated, that should be ruled by matz,
there is no such rule currently and gems seem to prefer #send
overwhelmingly.
Rails before 5.2 added Array#append as an alias to Array#<< ,
so that it expects only one argument.
However ruby-2.5 added Array#append as an alias to Array#push
which takes any number of arguments.
If irb completion is used in `rails c` (for example "IO.<tab>")
it fails with:
irb/completion.rb:206:in `<<': wrong number of arguments (given 3, expected 1) (ArgumentError)
Using Array#push instead of Array#append fixes compatibility.
5b7bbf9c34
IRB completion logic always needed exponential notation for complex literal
such as 3e6i but it's bug. I fixed to support complex literal without
exponential notation such as 3i.
In IRB, Time.new is split as "Time", ".", and "new". The receiver "Time"
is processed by #class method but it means that "Time" changes to
"Class". This commit fixes it.
Reline is a readline stdlib compatible library. It also supports
multiline input. IRB is improved with Reline and supports multiline.
Besides, supports showing documents when completed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
And thus avoiding Module#name calls. Those are slow, especially in
larger projects, with lots of anonymous modules.
[Fix GH-1798]
From: Dmitry Gutov <dgutov@yandex.ru>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
When you change this to true, you may need to add more tests.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
