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WIP: Data breakpoints #765

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WIP: Data breakpoints #765

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puremourning
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@puremourning puremourning commented Apr 30, 2023

  • ergonomics aren't great. Right now you hit F9 in the watch window to set a data breakpoint. This makes a kind of game-logic sense, but isn't intuitive.
  • Breakpoints window doesn't work at all (maybe promote behaviours to actual BP object finally?)
  • signs in the watch window when added that way? (can we track this in practice.. maybe put it on the expandable)
  • No persistence.
  • :VimspectorAddWatchpoint <....>
  • docs
  • tests

Works ok with lldb-dap and codelldb with this patch: vadimcn/codelldb#1161

basic usage: https://asciinema.org/a/f47vEkVI9FKisLPiAyfcC2LGW

not perfect.

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Need also to

  • update the docs
  • write some tests
  • Check the breakpoints window, edit etc.

continue
if bp[ 'conn' ] != connection.GetSessionId():
continue
if not bp[ 'info' ].get( 'dataId' ):
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could 0 be a valid value?

@@ -91,6 +91,7 @@
'delete': [ '<Del>' ],
'set_value': [ '<C-CR>', '<leader><CR>' ],
'read_memory': [ '<leader>m' ],
'add_data_breakpoint': [ '<F9>' ],
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this should probably be based on the mappings mode, but I'm not sure anyone uses anything other than HUMAN mode...

variable: Expandable
view: View

variable, view = self._GetVariable( buf, line_num )
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I guess this is where we might decide that it's actually an expression data BP e.g. we add a watch like foo and we want a data bp on the foo variable, but we currently can only do it on the result of that expression.

We should also allow it from the command line like :VimspectorAddDataBreakpoint <expression>

I will probably need to implement that for CodeLLDB before it's worth adding to vimspector as I still haven't found an adapter that supports it.

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done for codelldb; turns out that lldb-dap (formerly lldb-vscode) supports partially (though it's buggy and doesn't implement the address/bytes extension)

Works with CodeLLDB mostly for named things. Expressions don't seem to
be supported by anyone.

Fixed some state issues with the connections being retained across
restarts in watches. ugh. so messy.

Added access type question.

Java debug adapter returns broken breakpoints info response
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