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| author | Jade Lovelace <lix@jade.fyi> | 2024-08-12 16:04:22 -0700 |
|---|---|---|
| committer | Jade Lovelace <lix@jade.fyi> | 2024-08-12 16:04:22 -0700 |
| commit | 7e0fee530939cded2cf036ee8b4cc3cfd1103c0e (patch) | |
| tree | 2c8efb5417818e3e6400a2c39414988bd2698f9d /doc/manual/rl-next/pretty-printing.md | |
| parent | 5137cea99044d54337e439510a647743110b2d7d (diff) | |
release: release notes for 2.91.0
Release created with releng/create_release.xsh
Change-Id: Ieb6ca02d3cf986b28440fce3792e8c38ce80a33e
Diffstat (limited to 'doc/manual/rl-next/pretty-printing.md')
| -rw-r--r-- | doc/manual/rl-next/pretty-printing.md | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/doc/manual/rl-next/pretty-printing.md b/doc/manual/rl-next/pretty-printing.md deleted file mode 100644 index f7953f9ff..000000000 --- a/doc/manual/rl-next/pretty-printing.md +++ /dev/null @@ -1,58 +0,0 @@ ---- -synopsis: "Eliminate some pretty-printing surprises" -cls: [1616, 1617, 1618] -prs: [11100] -credits: [alois31, roberth] -category: Improvements ---- - -Some inconsistent and surprising behaviours have been eliminated from the pretty-printing used by the REPL and `nix eval`: -* Lists and attribute sets that contain only a single item without nested structures are no longer sometimes inappropriately indented in the REPL, depending on internal state of the evaluator. -* Empty attribute sets and derivations are no longer shown as `«repeated»`, since they are always cheap to print. - This matches the existing behaviour of `nix-instantiate` on empty attribute sets. - Empty lists were never printed as `«repeated»` already. -* The REPL by default does not print nested attribute sets and lists, and indicates elided items with an ellipsis. - Previously, the ellipsis was printed even when the structure was empty, so that such items do not in fact exist. - Since this behaviour was confusing, it does not happen any more. - -Before: -``` -nix-repl> :p let x = 1 + 2; in [ [ x ] [ x ] ] -[ - [ - 3 - ] - [ 3 ] -] - -nix-repl> let inherit (import <nixpkgs> { }) hello; in [ hello hello ] -[ - «derivation /nix/store/fqs92lzychkm6p37j7fnj4d65nq9fzla-hello-2.12.1.drv» - «repeated» -] - -nix-repl> let x = {}; in [ x ] -[ - { ... } -] -``` - -After: -``` -nix-repl> :p let x = 1 + 2; in [ [ x ] [ x ] ] -[ - [ 3 ] - [ 3 ] -] - -nix-repl> let inherit (import <nixpkgs> { }) hello; in [ hello hello ] -[ - «derivation /nix/store/fqs92lzychkm6p37j7fnj4d65nq9fzla-hello-2.12.1.drv» - «derivation /nix/store/fqs92lzychkm6p37j7fnj4d65nq9fzla-hello-2.12.1.drv» -] - -nix-repl> let x = {}; in [ x ] -[ - { } -] -``` |