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Debugger's list command throws TypeError: Cannot read properties of null (reading 'list') #42775

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cola119 opened this issue Apr 18, 2022 · 0 comments · Fixed by #42776
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debugger Issues and PRs related to the debugger subsystem.

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@cola119
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cola119 commented Apr 18, 2022

Version

v17.9.0

Platform

No response

Subsystem

No response

What steps will reproduce the bug?

$ node inspect -e "const a = 1"
debug> c
debug> list()

How often does it reproduce? Is there a required condition?

No response

What is the expected behavior?

Debugger should throw ERR_DEBUGGER_ERROR just like sb() command since the runtime context has been already destroyed.

debug> list()
> 1 const a = 1
debug> c
< Waiting for the debugger to disconnect...
< 
debug> list()
node:internal/debugger/inspect_repl:362
      throw new ERR_DEBUGGER_ERROR('Requires execution to be paused');
      ^
debug> sb(1)
node:internal/debugger/inspect_repl:362
      throw new ERR_DEBUGGER_ERROR('Requires execution to be paused');
      ^

What do you see instead?

debug> list()
> 1 const a = 1
debug> c
< Waiting for the debugger to disconnect...
< 
debug> list()
node:internal/debugger/inspect_repl:638
    return selectedFrame.list(delta).then(null, (error) => {
                         ^

Uncaught TypeError: Cannot read properties of null (reading 'list')
    at list (node:internal/debugger/inspect_repl:638:26)
    at REPL3:1:1
    at Script.runInContext (node:vm:139:12)
    at Object.runInContext (node:vm:289:6)
    at REPLServer.controlEval (node:internal/debugger/inspect_repl:578:25)
    at bound (node:domain:421:15)
    at REPLServer.runBound [as eval] (node:domain:432:12)
    at REPLServer.onLine (node:repl:893:10)
    at REPLServer.emit (node:events:527:28)
    at REPLServer.emit (node:domain:475:12)
debug> sb(1)
node:internal/debugger/inspect_repl:362
      throw new ERR_DEBUGGER_ERROR('Requires execution to be paused');
      ^

Additional information

No response

@cola119 cola119 changed the title Debugger's list command throws TypeError: Cannot read properties of null (reading 'list') Debugger's list command throws TypeError: Cannot read properties of null (reading 'list') Apr 18, 2022
@VoltrexKeyva VoltrexKeyva added the debugger Issues and PRs related to the debugger subsystem. label Apr 18, 2022
aduh95 pushed a commit that referenced this issue May 22, 2022
PR-URL: #42776
Fixes: #42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
bengl pushed a commit that referenced this issue May 30, 2022
PR-URL: #42776
Fixes: #42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
juanarbol pushed a commit that referenced this issue May 31, 2022
PR-URL: #42776
Fixes: #42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
cola119 added a commit to cola119/node that referenced this issue Jun 27, 2022
PR-URL: nodejs#42776
Fixes: nodejs#42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
cola119 added a commit to cola119/node that referenced this issue Jun 28, 2022
PR-URL: nodejs#42776
Fixes: nodejs#42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
targos pushed a commit that referenced this issue Jul 18, 2022
PR-URL: #42776
Fixes: #42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
targos pushed a commit that referenced this issue Jul 31, 2022
PR-URL: #42776
Fixes: #42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
guangwong pushed a commit to noslate-project/node that referenced this issue Oct 10, 2022
PR-URL: nodejs/node#42776
Fixes: nodejs/node#42775
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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