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lix/doc/manual/rl-next/enter-debugger-more-reliably-in-let-and-calls.md
eldritch horrors 3e1be9c530 Merge pull request #9917 from 9999years/enter-debugger-more-reliably 
Enter debugger more reliably in `let` expressions and function calls

(cherry picked from commit c4ed92fa6f)
Change-Id: I16d0cad7e898feecd2399723b92ba8df67222fb4
2024-03-09 03:37:35 -07:00

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synopsis prs issues
The `--debugger` will start more reliably in `let` expressions and function calls 9917 6649

Previously, if you attempted to evaluate this file with the debugger:

let
  a = builtins.trace "before inner break" (
    builtins.break "hello"
  );
  b = builtins.trace "before outer break" (
    builtins.break a
  );
in
  b

Nix would correctly enter the debugger at builtins.break a, but if you asked it to :continue, it would skip over the builtins.break "hello" expression entirely.

Now, Nix will correctly enter the debugger at both breakpoints.