#7549: Deriving Bug?
-----------------------------+----------------------------------------------
Reporter: davorak | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.2 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Blockedby:
Blocking: | Related:
-----------------------------+----------------------------------------------
ghci -XDeriveDataTypeable
> import Data.Typeable
> data S = S deriving (typeable)
ghc: panic! (the 'impossible' happened)
(GHC version 7.4.2 for x86_64-unknown-linux):
nameModule typeable{tv av8}
Please report ...
data S = S deriving typeable causes a parse error
and
The following work just fine:
data S = S deriving Typeable
data S = S deriving (Typeable)
data S = S deriving (show) causes a similar error the only change being:
nameModule show{tv av8}
The same problem exists outside of ghci when trying to compile with GHC.
The ascii tree for the dependancies of the ghc install produced with
nix-store -q --tree $(which ghc)
/nix/store/gzb4pca6nnb16lw2mbmr68kx2vwx8q56-ghc-7.4.2-wrapper[[BR]]
+---/nix/store/043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24[[BR]]
| +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13[[BR]]
| | +---/nix/store/jfcs9xnfbmiwqs224sb0qqsybbfl3sab-linux-
headers-2.6.35.14[[BR]]
| | | +---/nix/store/jfcs9xnfbmiwqs224sb0qqsybbfl3sab-linux-
headers-2.6.35.14 [...][[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| +---/nix/store/043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24
[...][[BR]]
+---/nix/store/858ww5lrjxca5asa79vwq5rm6m1h3q6k-ghc-7.4.2[[BR]]
| +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13 [...][[BR]]
| +---/nix/store/043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24
[...][[BR]]
| +---/nix/store/1iigiim5855m8j7pmwf5xrnpf705s4dh-binutils-2.21.1a[[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | +---/nix/store/i3mqzy76lf51v5zqxjxyvf11j25iwycd-zlib-1.2.7[[BR]]
| | | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | | +---/nix/store/i3mqzy76lf51v5zqxjxyvf11j25iwycd-zlib-1.2.7
[...][[BR]]
| | +---/nix/store/1iigiim5855m8j7pmwf5xrnpf705s4dh-binutils-2.21.1a
[...][[BR]]
| +---/nix/store/a9jvlnrva7vr1szbg6shpw6nr5xz898p-gmp-5.0.5[[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | +---/nix/store/4gv9gby4bn1y0rlw3k0d5lyqy0yfkrc6-gcc-4.6.3[[BR]]
| | | +---/nix/store/jfcs9xnfbmiwqs224sb0qqsybbfl3sab-linux-
headers-2.6.35.14 [...][[BR]]
| | | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | | +---/nix/store/i3mqzy76lf51v5zqxjxyvf11j25iwycd-zlib-1.2.7
[...][[BR]]
| | | +---/nix/store/4gv9gby4bn1y0rlw3k0d5lyqy0yfkrc6-gcc-4.6.3
[...][[BR]]
| | +---/nix/store/a9jvlnrva7vr1szbg6shpw6nr5xz898p-gmp-5.0.5
[...][[BR]]
| +---/nix/store/ahg5mlj2mlp7yfl3x875pq95ar763vgj-ncurses-5.9[[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | +---/nix/store/043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24
[...][[BR]]
| | +---/nix/store/ahg5mlj2mlp7yfl3x875pq95ar763vgj-ncurses-5.9
[...][[BR]]
| +---/nix/store/v4m3gahx1iz53v51rdinh0lcmipn1p4j-perl-5.14.2[[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | +---/nix/store/4gv9gby4bn1y0rlw3k0d5lyqy0yfkrc6-gcc-4.6.3
[...][[BR]]
| |
+---/nix/store/vpp6h8l3mzjdn5paziz31vk52pg73635-coreutils-8.15[[BR]]
| | | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | | +---/nix/store/qh3l8f8369kvbhnkbwwnpaxayvnvi55v-
acl-2.2.51[[BR]]
| | | | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | | | +---/nix/store/jaabnv7dgxzvyhg0nxzk7xqs2qxp5rcy-
attr-2.4.46[[BR]]
| | | | |
+---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13 [...][[BR]]
| | | | | +---/nix/store/jaabnv7dgxzvyhg0nxzk7xqs2qxp5rcy-
attr-2.4.46 [...][[BR]]
| | | | +---/nix/store/qh3l8f8369kvbhnkbwwnpaxayvnvi55v-acl-2.2.51
[...][[BR]]
| | | +---/nix/store/vpp6h8l3mzjdn5paziz31vk52pg73635-coreutils-8.15
[...][[BR]]
| | +---/nix/store/v4m3gahx1iz53v51rdinh0lcmipn1p4j-perl-5.14.2
[...][[BR]]
| +---/nix/store/xl3kqxs68gzs4h309wjyd32im9n6cnyr-gcc-
wrapper-4.6.3[[BR]]
| | +---/nix/store/cj7a81wsm1ijwwpkks3725661h3263p5-glibc-2.13
[...][[BR]]
| | +---/nix/store/043zrsanirjh8nbc5vqpjn93hhrf107f-bash-4.2-p24
[...][[BR]]
| | +---/nix/store/1iigiim5855m8j7pmwf5xrnpf705s4dh-binutils-2.21.1a
[...][[BR]]
| | +---/nix/store/4gv9gby4bn1y0rlw3k0d5lyqy0yfkrc6-gcc-4.6.3
[...][[BR]]
| | +---/nix/store/vpp6h8l3mzjdn5paziz31vk52pg73635-coreutils-8.15
[...][[BR]]
| | +---/nix/store/xl3kqxs68gzs4h309wjyd32im9n6cnyr-gcc-wrapper-4.6.3
[...][[BR]]
| +---/nix/store/858ww5lrjxca5asa79vwq5rm6m1h3q6k-ghc-7.4.2 [...][[BR]]
+---/nix/store/gzb4pca6nnb16lw2mbmr68kx2vwx8q56-ghc-7.4.2-wrapper
[...][[BR]]
OS: nixos 1.1
GHC: 7.4.2
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7549>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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