Repository navigation
Add Release, the obsolete form of Evaluate - #1998
Merged
Merged
Conversation
Release was superseded by Evaluate and ReleaseHold in Version 2.0, but WMA still knows it, and old packages use it, for instance to build the left-hand side of a definition from a variable: Format[Release[name][k_]] := Subscript[name, k]. Here it simply evaluates to its argument. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
mmatera
reviewed
Oct 16, 2026
Contributor
|
LGTM |
Member
|
As @mmatera says: LGTM |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Releaseis the pre-Version 2.0 name ofEvaluate. WMA still knows the symbol (its reference page marks it as obsolete, superseded byEvaluateandReleaseHold), and older packages use it, for instance to build the left-hand side of a definition from a variable:In Mathics3
Releaseis undefined, so such definitions are stored forRelease[h]instead ofh.This PR adds
Releaseas a builtin that evaluates to its argument, with a doctest, aSYMBOLS_MANIFEST.txtentry and tests intest/builtin/test_evaluation.py. UnlikeEvaluate, it does not pierceHoldattributes.🤖 Generated with Claude Code