ucsd-progsys/liquidhaskell

The sort GHC.Natural.Natural is not numeric

Open

#1,500 opened on May 28, 2019

View on GitHub
 (2 comments) (0 reactions) (0 assignees)Haskell (157 forks)batch import
good first issue

Repository metrics

Stars
 (1,306 stars)
PR merge metrics
 (Avg merge 2d 18h) (12 merged PRs in 30d)

Description

in Control.Concurrent.STM.TBQueue

function newTBQueue :: Natural -> STM (TBQueue a) requires a "Natural" argument.

LH complains that this cannot be compared (==) to an int.

Adding {-@ embed GHC.Natural.Natural as int @-} solved the problem. But, could this be added to the specs in "include/GHC" ?

liquid: LiquidHaskell Version 0.8.6.0 (compiled from develop)

Contributor guide

Research direction
Add the embedding for GHC.Natural.Natural as int to the LiquidHaskell specifications in include/GHC.
Tech stack
None
Domain
developer experience
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
HaskellLiquidHaskell
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75