($!) not in scope

[daniel.is.fischer]

When no module is interpreted, ghci doesn't know ($!) anymore:

$ ghci -ignore-dot-ghci
GHCi, version 7.2.1: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> const 3 $! 5

<interactive>:0:9:
    Not in scope: `$!'
    Perhaps you meant one of these:
      `$' (imported from Prelude), `!!' (imported from Prelude)

The same happens when only compiled modules are loaded, but it's there when there's an interpreted module loaded. The same behaviour is exhibited by HEAD.

[daniel.is.fischer]

Hmm, it's available as Prelude.$!.

[simonpj]

Deeply strange. I'll look into it.

[simonmar]

I have a fix for this, validating now.

[marlowsd@…]

commit 6a342059c19c85a929884453806b1727b526df68

Author: Simon Marlow <marlowsd@gmail.com>
Date:   Tue Oct 18 11:31:53 2011 +0100

    fix value of this_mod passed to tcRnImports (#5545)

 compiler/main/HscMain.lhs        |    7 +++----
 compiler/main/InteractiveEval.hs |    7 +------
 2 files changed, 4 insertions(+), 10 deletions(-)

[simonpj@…]

commit bcd8fdb0301adb78654a5e2794301b38a8fa2a41

Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Fri Oct 21 16:41:13 2011 +0100

    A little more refactoring, triggered by the fix to Trac #5545

 compiler/main/HscMain.lhs         |    5 +----
 compiler/main/InteractiveEval.hs  |    8 ++++----
 compiler/typecheck/TcRnDriver.lhs |   11 ++++++++++-
 3 files changed, 15 insertions(+), 9 deletions(-)