bflatasticandClaude Opus 5.5 b43b15a6e8 Part of #505: restore puts dictionaries back as they were at the save ...

The PostScript Language Reference (3rd ed., §3.7.3 "Save and Restore")
has `restore` reset composite objects in local VM to their values at the
`save`. The reader only restored the graphics state, so dictionary
entries changed between `save` and `restore` stayed changed: a program
that counts its open saves in a dictionary and refuses to go past a depth
stopped after that many saves in sequence, and the file fell back to its
preview. EPS files with many images, each drawn between `save` and
`restore`, are a likely case of #505; its reporter hasn't sent a file, so
this is part of it.

- While a `save` is open, `def`, `store`, `put`, `undef` and dictionary
  `copy` keep each entry's old value in a journal (counted against the
  memory budget); `restore` undoes it, newest change first, down to its
  save. A save restored already, itself or through an outer one, is no
  longer valid (`invalidrestore`, §3.7.3).
- `cachestatus` reports a device's cache sizes (chapter 8) instead of
  zeros: its last value, the most bytes one cached glyph may take, is what
  programs divide by.
- Tests (programs written from the reference): 100 saves counted in a
  dictionary under a depth limit, each dictionary change undone, saves
  restored twice, `cachestatus`'s glyph limit. Mutation-checked: without
  the journal or with a zero `cachestatus` the test fails. The import fuzz
  vocabulary has saves and restores around dictionary changes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-08 23:43:51 +07:00

..

color_settings.rs

M3.52: stop the eyedropper image-sampling test from flaking

2026-10-05 05:36:57 +07:00

command_sweep.rs

Fix #483: Shift-drag marquees toggle the selection; the Lasso's Alt keeps the rest

2026-10-08 20:21:36 +07:00

import_fuzz.rs

Part of #505: restore puts dictionaries back as they were at the save

2026-10-08 23:43:51 +07:00

known_bugs.rs

Robustness: VectorCraft never crashes — no panics in shipped code

2026-10-05 06:28:59 +07:00

model_based.rs

Robustness: VectorCraft never crashes — no panics in shipped code

2026-10-05 06:28:59 +07:00

plugin_fuzz.rs

Fix #121: sandboxed WebAssembly plug-ins: object filters and live effects

2026-10-06 00:19:41 +07:00

text_import_fuzz.rs

M4.54: Placing a text file asks for Text Import Options and sets it as area type

2026-10-05 10:07:23 +07:00