Feat/Bug: Set the value of `_` (underscore) to the value of the last ruby expression
まだ誰も着手していません。
評価
調査の方向性
Start with the irb_integration.rb entry point named in the trace and reproduce the supplied IRB session while comparing normal and debug modes. Done means _ continues to hold the last Ruby expression's value after entering debug mode, without debug commands or errors replacing it.
索引モデルが issue の本文から書いたものです。
説明
Your proposal
Pry and IRB have a feature in which _ is always set the the value of the last expression. While I realize it may not make sense to do this with debug commands, it would be nice if the feature was there at least for Ruby expressions. The current behavior seems to be setting _ to the last error, but seemingly only for debug commands like ls. This is kind of a bug in the irb_console since IRB has this feature normally but it stops working after entering debug mode.
Additional context
Shell session:
irb(#<Foobar:0x000000011efeb9f0>):001> 3+3
=> 6
irb(#<Foobar:0x000000011efeb9f0>):002> puts _
6
=> nil
irb(#<Foobar:0x000000011efeb9f0>):003> 4+4
=> 8
irb(#<Foobar:0x000000011efeb9f0>):004> info
(rdbg:irb) info
%self = #<Foobar:0x000000011efeb9f0 @foo="bar">
@foo = "bar"
irb:rdbg(#<Foobar:0x000000011efeb9f0>):002> puts _
nil
irb:rdbg(#<Foobar:0x000000011efeb9f0>):003> 4+4
8
irb:rdbg(#<Foobar:0x000000011efeb9f0>):004> puts _
nil
irb:rdbg(#<Foobar:0x000000011efeb9f0>):005> 4+4
8
irb:rdbg(#<Foobar:0x000000011efeb9f0>):006> info
%self = #<Foobar:0x000000011efeb9f0 @foo="bar">
_ = nil
@foo = "bar"
irb:rdbg(#<Foobar:0x000000011efeb9f0>):007> ls Bar
Traceback (most recent call last):
24: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:212:in `block in activate'
23: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:254:in `session_server_main'
22: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:365:in `process_event'
21: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:403:in `wait_command_loop'
20: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:403:in `loop'
19: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:404:in `block in wait_command_loop'
18: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:444:in `wait_command'
15: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:1981:in `intercept_trap_sigint'
4: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/irb_integration.rb:9:in `evaluate'
(irb):7:in `set_foo': uninitialized constant Foobar::Bar (NameError)`
irb:rdbg(#<Foobar:0x000000011efeb9f0>):008> puts _
uninitialized constant Foobar::Bar
nil
irb:rdbg(#<Foobar:0x000000011efeb9f0>):009> ls Bar
Traceback (most recent call last):
24: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:212:in `block in activate'
23: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:254:in `session_server_main'
22: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:365:in `process_event'
21: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:403:in `wait_command_loop'
20: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:403:in `loop'
19: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:404:in `block in wait_command_loop'
18: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:444:in `wait_command'
15: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/session.rb:1981:in `intercept_trap_sigint'
4: from /Users/joesharp/.asdf/installs/ruby/2.7.8/lib/ruby/gems/2.7.0/gems/debug-1.9.1/lib/debug/irb_integration.rb:9:in `evaluate'
(irb):9:in `set_foo': uninitialized constant Foobar::Bar (NameError)`
irb:rdbg(#<Foobar:0x000000011efeb9f0>):010> info
%self = #<Foobar:0x000000011efeb9f0 @foo="bar">
_ = #<NameError: uninitialized constant Foobar::Bar>
@foo = "bar"
irb:rdbg(#<Foobar:0x000000011efeb9f0>):011> Bar.methods
eval error: uninitialized constant Foobar::Bar
(rdbg)/scratch.rb:1:in `set_foo'`
nil
irb:rdbg(#<Foobar:0x000000011efeb9f0>):012> info
%self = #<Foobar:0x000000011efeb9f0 @foo="bar">
_ = nil
@foo = "bar"
irb:rdbg(#<Foobar:0x000000011efeb9f0>):013> Bar.methods
eval error: uninitialized constant Foobar::Bar
(rdbg)/scratch.rb:1:in `set_foo'`
nil
irb:rdbg(#<Foobar:0x000000011efeb9f0>):014> puts _
nil
- 主要言語
- Ruby
- スター
- 1.3k
- フォーク
- 146
- PR マージ指標
- 30日以内にマージされた PR はありません
コントリビューションガイド
はじめの一歩
- issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
- 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
- リポジトリをフォークし、ブランチを切って変更します。
- issue 番号を参照したプルリクエストを送ります。
ruby/debug のほかの issue
-
難易度 3/5 1〜2日 初心者へのやさしさ 68/100
-
Support exceptionOptions in setExceptionBreakpoints to catch arbitrary exception classes via DAP オープン
難易度 4/5 3〜5日 初心者へのやさしさ 55/100
-
難易度 3/5 1〜2日 初心者へのやさしさ 45/100
-
難易度 4/5 3〜5日 初心者へのやさしさ 52/100
-
難易度 4/5 3〜5日 初心者へのやさしさ 35/100
似ている issue
-
難易度 1/5 1時間未満 初心者へのやさしさ 90/100
-
難易度 2/5 1〜3時間 初心者へのやさしさ 88/100
-
バグ
難易度 1/5 1時間未満 初心者へのやさしさ 92/100
-
難易度 2/5 1〜3時間 初心者へのやさしさ 75/100
voxpupuli/puppet-epel#186 · コメント 1 件 ·
-
external_created_at is no longer used for the message timestamp since the new message UI (v4.4.0) オープンBug Frontend
難易度 2/5 1〜3時間 初心者へのやさしさ 78/100