Conversation
previously, `#eval` would happily evaluate expressions that contain `sorry`, either explicitly or because of failing tactics. In conjunction with operations like array access this can lead to the lean process crashing, which isn't particularly great. So how `#eval` will refuse to run code that (transitively) depends on the `sorry` axiom (using the same code as `#print axioms`). If the user really wants to run it, they can use `#eval!`.
github-actions
bot
added
the
toolchain-available
|
Mathlib CI status (docs):
|
nomeata
added
will-merge-soon
Collaborator
Author
|
Actually I’m feeling confident enough, I’ll just merge :-) |
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
1 participant
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
previously,
#evalwould happily evaluate expressions that containsorry, either explicitly or because of failing tactics. In conjunctionwith operations like array access this can lead to the lean process
crashing, which isn't particularly great.
So how
#evalwill refuse to run code that (transitively) depends onthe
sorryaxiom (using the same code as#print axioms).If the user really wants to run it, they can use
#eval!.Closes #1697