Skip to content
GitLab
Projects Groups Snippets
  • /
  • Help
    • Help
    • Support
    • Community forum
    • Submit feedback
  • Sign in / Register
  • GHC GHC
  • Project information
    • Project information
    • Activity
    • Labels
    • Members
  • Repository
    • Repository
    • Files
    • Commits
    • Branches
    • Tags
    • Contributors
    • Graph
    • Compare
    • Locked Files
  • Issues 5,399
    • Issues 5,399
    • List
    • Boards
    • Service Desk
    • Milestones
    • Iterations
  • Merge requests 592
    • Merge requests 592
  • CI/CD
    • CI/CD
    • Pipelines
    • Jobs
    • Schedules
    • Test Cases
  • Deployments
    • Deployments
    • Releases
  • Analytics
    • Analytics
    • Value stream
    • CI/CD
    • Code review
    • Insights
    • Issue
    • Repository
  • Wiki
    • Wiki
  • Snippets
    • Snippets
  • Activity
  • Graph
  • Create a new issue
  • Jobs
  • Commits
  • Issue Boards
Collapse sidebar
  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #9360
Closed
Open
Issue created Jul 24, 2014 by mcandre@trac-mcandre

GHCi: Behave nicely on `-e`, like `ghc` and other programs

Like many programming language environments, GHC offers a handy -e option for evaluating an expression, then returning to the shell.

$ ghc -e '2 + 2'

4

One would expect the interpreter, GHCi, to offer a similar flag, but it surprisingly rejects it.

ghci -e '2 + 2'

ghc: on the commandline: cannot use `--interactive' with `-e'

Usage: For basic information, try the `--help' option.

I think this behavior is quite unintuitive--when I pass -e <exp> to ghci, or pass --interactive -e <exp> to ghc, I expect the expression to be evaluated as the leading expression in an interactive interpreter session.

Could we please tweak ghc like this to make it slightly more intuitive when these flags are used together?

Trac metadata
Trac field Value
Version 7.8.2
Type FeatureRequest
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information
Assignee
Assign to
Time tracking