Opened 3 months ago

Closed 3 months ago

#30288 closed enhancement (fixed)

Immutability for Sections

Reported by: gh-mjungmath Owned by:
Priority: major Milestone: sage-9.2
Component: manifolds Keywords: immutable
Cc: egourgoulhon, tscrim, mkoeppe Merged in:
Authors: Michael Jung Reviewers: Matthias Koeppe
Report Upstream: N/A Work issues:
Branch: 04085f9 (Commits) Commit: 04085f93853c301b0f8bfe59a0b831b513e39ed9
Dependencies: Stopgaps:

Description (last modified by gh-mjungmath)

This is the immutability ticket for sections (cf. #30261).

In this ticket we also add most features that have been developed in the last Sage versions and not been adapted to sections yet. This includes:

  • _is_zero attribute
  • unsafe assignments
  • copy_from method

Change History (9)

comment:1 Changed 3 months ago by gh-mjungmath

  • Branch set to u/gh-mjungmath/immutability_for_sections

comment:2 Changed 3 months ago by gh-mjungmath

  • Cc egourgoulhon tscrim mkoeppe added
  • Commit set to 7a9feb613d60eca7b431b9068dd87d8668dc3b0e
  • Description modified (diff)
  • Keywords immutable added
  • Status changed from new to needs_review

New commits:

​286d3c6FreeModuleTensor, Vector: Subclass a new class ModuleElementWithMutability
​9df3d22sage.tensor.modules: Make all zero() and one() elements immutable
​4373ea2FreeModuleTensor: Replace special casing of the immutable zero by is_immutable
​a2ee8beModuleElementWithMutability.is_immutable, is_mutable: Change def to cpdef
​c80922bTrac #30288: Merge branch 't/30181/immutable_elements_of_freemoduletensor' into t/30288/immutability_for_sections
​7a9feb6Trac #30288: _is_zero attribute added + copy_from added + unsafe assignment added + immutability added

comment:3 Changed 3 months ago by git

  • Commit changed from 7a9feb613d60eca7b431b9068dd87d8668dc3b0e to 04085f93853c301b0f8bfe59a0b831b513e39ed9

Branch pushed to git repo; I updated commit sha1. New commits:

​04085f9Trac #30288: missing _is_zero attribute added

comment:4 Changed 3 months ago by gh-mjungmath

Green patchbot.

comment:5 Changed 3 months ago by mkoeppe

This looks fine except for the issue discussed in #30302

comment:6 Changed 3 months ago by gh-mjungmath

Still, this reflects the current state. I'd like to have it in because of unification. The copy modifications discussed in #30302 can then still be built upon this ticket.

comment:7 Changed 3 months ago by mkoeppe

  • Reviewers set to Matthias Koeppe
  • Status changed from needs_review to positive_review

comment:8 Changed 3 months ago by gh-mjungmath

Thanks! :)

comment:9 Changed 3 months ago by vbraun

  • Branch changed from u/gh-mjungmath/immutability_for_sections to 04085f93853c301b0f8bfe59a0b831b513e39ed9
  • Resolution set to fixed
  • Status changed from positive_review to closed
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