#4316: Interactive "do" notation in GHCi
------------------------------+---------------------------------------------
Reporter: mitar | Owner:
Type: feature request | Status: new
Priority: normal | Milestone: 7.4.1
Component: GHCi | Version: 7.0.3
Resolution: | Keywords:
Testcase: | Blockedby: 4459
Difficulty: | Os: Unknown/Multiple
Blocking: | Architecture: Unknown/Multiple
Failure: None/Unknown |
------------------------------+---------------------------------------------
Changes (by daniel.is.fischer):
* version: 6.12.3 => 7.0.3
Comment:
The test is in 7.0.3's testsuite, but the patch doesn't seem to be in:
{{{
Actual stderr output differs from expected:
--- /dev/null 2011-04-02 10:56:44.408004588 +0200
+++ ./ghci/scripts/T4316.run.stderr.normalised 2011-04-02
17:00:07.000000000 +0200
@@ -0,0 +1,20 @@
+
+<interactive>:1:22: Empty 'do' construct
+
+<interactive>:1:6:
+ No instance for (MonadState t0 IO)
+ arising from a use of `get'
+ Possible fix: add an instance declaration for (MonadState t0 IO)
+ In a stmt of an interactive GHCi command: i <- get
+
+<interactive>:1:8: Empty 'do' construct
+
+<interactive>:1:7: Not in scope: `i'
+
+<interactive>:1:1: parse error on input `in'
+
+<interactive>:1:10: parse error (possibly incorrect indentation)
+
+<interactive>:1:7: parse error on input `->'
+
+<interactive>:1:7: parse error on input `->'
*** unexpected failure for T4316(ghci)
}}}
Trying :set +m in ghci results in {{{unknown option: 'm'}}}.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4316#comment:37>
GHC <http://www.haskell.org/ghc/>
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