[GHC] #1666: -Werror aborts too early
#1666: -Werror aborts too early --+- Reporter: simonmar | Owner: Type: bug | Status: new Priority: low | Milestone: 6.10 Component: Compiler |Version: 6.6.1 Severity: normal | Keywords: Difficulty: Easy (1 hr) | Os: Unknown Testcase: | Architecture: Unknown --+- When `-Werror` is on, we'd like to see all the warnings before the compilation aborts. At the moment, if a given stage of the compiler generates warnings (e.g. the renamer), we stop right there and don't go on to do further stages, even though we could. This isn't completely trivial to fix, we need to remember somewhere that warnings were generated earlier, or remember the warnings themselves. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1666 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
RE: ghci :browse! and type of class methods ([GHC] #1617)
| i would still like to know how one is supposed to display | the type of class methods, and why 'it' is not bound in the | same naive way i've used to bind 'output'. once these two About the it/output thing, I don't know. Can you be more explicit about what your question is? Concerning class methods... | *Main :b! Control.Monad | fail :: Monad m - forall a. String - m a I can't explain why this does not print as (Monad m) = ... I'll try applying your patch when I have a clean build to hand. | also, if the class method has its own context, as in: | | class C a where c :: Num b = a - b | | we get two levels of context, instead of a single merged context: | | *Main :b! Main | class C a where c :: (Num b) = a - b | c :: C a - forall b. (Num b) = a - b I think the right thing here is to change Type.dropForAlls, so that it drops for-alls nested to the right of arrows. Then you'd get c :: (C a, Num b) = a - b However, if you *ask* to display the foralls, then the only thing to do is to display the actual type, as you do here: | *Main :set -fglasgow-exts | | *Main :b! Main | class C a where c :: forall b. (Num b) = a - b | c :: forall a. (C a) = forall b. (Num b) = a - b This *really is* c's type, so it's only honest to say so. (I'm not sure why -fglasgow-exts switches on forall-printing; that seems odd. Is it really what GHC does? We should surely have a flag for that.) Simon ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #919: Cryptic type error message (should be syntax error)
#919: Cryptic type error message (should be syntax error)
-+--
Reporter: [EMAIL PROTECTED] |Owner:
Type: bug | Status: closed
Priority: normal|Milestone: 6.8
Component: Compiler (Type checker) | Version: 6.5
Severity: normal| Resolution: fixed
Keywords:| Difficulty: Easy (1 hr)
Os: Unknown | Testcase:
Architecture: Unknown |
-+--
Changes (by simonmar):
* resolution: = fixed
* testcase: =
* status: new = closed
Comment:
Definitely fixed, error is now:
{{{
919.hs:1:20:
Illegal operator `.' in type `forall a . ((a - Maybe (b, a))
- a - c)'
(Use -XTypeOperators to allow operators in types)
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/919
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Re: [GHC] #1465: Type errors due to different package versions are a bit cryptic
#1465: Type errors due to different package versions are a bit cryptic
+---
Reporter: guest|Owner:
Type: bug | Status: closed
Priority: normal |Milestone: 6.8
Component: Compiler (Type checker) | Version: 6.6.1
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Moderate (1 day)
Os: Unknown | Testcase: tcfail182, bug1465,
mod180
Architecture: Unknown |
+---
Changes (by simonmar):
* difficulty: Easy (1 hr) = Moderate (1 day)
* resolution: = fixed
* testcase: tcfail182 = tcfail182, bug1465, mod180
* status: new = closed
Comment:
Fixed:
{{{
Thu Sep 6 10:37:44 BST 2007 Simon Marlow [EMAIL PROTECTED]
* FIX #1465, error messages could sometimes say things like A.T doesn't
match A.T
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1465
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Re: ghci :browse! and type of class methods ([GHC] #1617)
On Thu, Sep 06, 2007 at 10:51:05AM +0100, Simon Peyton-Jones wrote: (I'm not sure why -fglasgow-exts switches on forall-printing; that seems odd. I think it's because it turns on things like rank-n types. Is it really what GHC does? We should surely have a flag for that.) -f(no-)print-explicit-foralls controls whether or not they're printed (the flag isn't in GHC 6.7). Thanks Ian ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
[GHC] #1667: make install tries to write to /share
#1667: make install tries to write to /share
+---
Reporter: [EMAIL PROTECTED] | Owner:
Type: bug| Status: new
Priority: high | Milestone: 6.8
Component: Compiler |Version: 6.7
Severity: normal | Keywords:
Difficulty: Unknown| Os: Unknown
Testcase: | Architecture: Unknown
+---
With this configure command
{{{./configure --prefix=$HOME --with-ghc=/usr/bin/ghc-6.6.1 }}}
(and all the other usual commands) doing make install gives (it tries to
write to the /share directory, which should be $HOME/share in my case):
== Finished recursively making `install' for ways: p debug thr thr_p
thr_debug ...
PWD = /home/foo/haskell/ghc/rts
== make install -r;
in /home/foo/haskell/ghc/libraries
if ifBuildable/ifBuildable base; then \
cd base \
../installPackage/installPackage /home/foo $prefix/share/ghc
/home/foo/share/doc/ghc/libraries /home/foo/haskell/ghc/utils/ghc-pkg/ghc-
pkg-inplace /home/foo/lib/ghc-6.7.20070906/package.conf; \
fi
installPackage: /share: createDirectory: permission denied (Permission
denied)
make[1]: *** [install.library.base] Error 1
make: *** [install] Error 1
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1667
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Re: ghci :browse! and type of class methods ([GHC] #1617)
About the it/output thing, I don't know. Can you be more explicit about what your question is? i was worried about using a different method of implementing what seemed to be the same thing. Simon M cleared up that 'it' is slightly more complex, due to type dependencies. Concerning class methods... | *Main :b! Control.Monad | fail :: Monad m - forall a. String - m a I can't explain why this does not print as (Monad m) = ... I'll try applying your patch when I have a clean build to hand. thanks, that is my main question about this part. perhaps i'm just using the wrong printTyThing variant? or there is a variant missing in the GHC API. | class C a where c :: (Num b) = a - b | c :: C a - forall b. (Num b) = a - b I think the right thing here is to change Type.dropForAlls, so that it drops for-alls nested to the right of arrows. Then you'd get c :: (C a, Num b) = a - b yes, that makes sense. but i'm wary of those type-manipulating functions, as they only operate on the structure of the types, not seeming to look at scopes. what if the inner forall shadows a type variable binding from the outer forall? or, if i want to lift the inner forall outwards, what if the inner forall captures a type variable in the context? do i really have to do all this myself, just to print out the type associated with a name? | class C a where c :: forall b. (Num b) = a - b | c :: forall a. (C a) = forall b. (Num b) = a - b This *really is* c's type, so it's only honest to say so. shouldn't the correct type be something that would be valid source code as well? c :: forall a, b. (C a, Num b) = a - b the type shouldn't distinguish between class methods and other overloaded functions, should it? (I'm not sure why -fglasgow-exts switches on forall-printing; that seems odd. i'm only following :browse behaviour (comments say that foralls are printed when the flags would allow them to be used in source). claus ___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
[GHC] #1668: build system incorrectly includes build.mk unconditionally
#1668: build system incorrectly includes build.mk unconditionally --+- Reporter: [EMAIL PROTECTED] | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Build System |Version: 6.7 Severity: normal | Keywords: Difficulty: Unknown | Os: Unknown Testcase: | Architecture: Unknown --+- ./libraries/base/Makefile.local unconditionally includes $(TOP)/mk/build.mk when in fact it should do something more along the lines of the following: ifeq $(Validating) YES include $(TOP)/mk/validate-settings.mk -include $(TOP)/mk/validate.mk else -include $(TOP)/mk/build.mk # (Optional) build-specific configuration # endif This error causes validation to fail when build.mk contains -Werror, as there are things within libraries/base which have not yet been caused to be warning-clean. Here is a subset of files that mention build.mk and may be worth investigating: ./configure.ac ./distrib/cross-port ./distrib/hc-build ./mk/boilerplate.mk ./mk/config.mk ./mk/config.mk.in ./mk/install.mk ./mk/build.mk ./mk/build.mk.sample ./bindisttest/Makefile ./compiler/ghci/keepCAFsForGHCi.c ./compiler/ilxGen/tests/Makefile ./compiler/ndpFlatten/TODO ./libraries/base/Makefile.local ./libraries/Makefile.local ./libraries/Makefile ./WindowsInstaller/MakeInstaller.txt ./Makefile -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1668 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #1395: let ./configure check for a GNUreadline framework
#1395: let ./configure check for a GNUreadline framework
+---
Reporter: [EMAIL PROTECTED]|Owner:
Type: feature request | Status: closed
Priority: normal |Milestone: 6.8
Component: Build System | Version: 6.6.1
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Easy (1 hr)
Os: MacOS X | Testcase:
Architecture: Multiple |
+---
Changes (by igloo):
* resolution: = fixed
* status: new = closed
Comment:
Fixed by:
{{{
Thu Sep 6 06:26:28 BST 2007 [EMAIL PROTECTED]
* Link against GNUreadline.framework, if it's available.
This can be overridden by setting --with-readline-includes or
--with-readline-libraries.
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1395
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[GHC] #1669: GHCi debugger underlining is in the wrong place
#1669: GHCi debugger underlining is in the wrong place
--+-
Reporter: igloo| Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.8
Component: GHCi |Version: 6.7
Severity: normal | Keywords:
Difficulty: Unknown | Os: Unknown
Testcase: | Architecture: Unknown
--+-
Here's part of the break020 test, in `testsuite/tests/ghc-
regress/ghci.debugger/scripts`:
{{{
% export TERM=vt100
% ../../../../../compiler/stage2/ghc-inplace --interactive
GHCi, version 6.7: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
Prelude :l break020.hs
[1 of 2] Compiling Break020b( Break020b.hs, interpreted )
[2 of 2] Compiling Main ( break020.hs, interpreted )
Ok, modules loaded: Break020b, Main.
*Main :set stop :list
*Main :step main
Stopped at break020.hs:(9,7)-(17,1)
_result :: IO () = _
8
9 main = do
^^
10line1 0
11line2 0
12in_another_decl 0
13in_another_module 0
14line2 1
15return ()
16
17
^^
[break020.hs:(9,7)-(17,1)] *Main :steplocal
Stopped at break020.hs:10:2-8
_result :: IO () = _
9 main = do
10line1 0
^^^
11line2 0
[break020.hs:10:2-8] *Main
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/1669
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