Edward Great stuff. Is this documented somewhere, notably in http://www.haskell.org/ghc/docs/latest/html/users_guide/packages.html for GHC, and somewhere in Cabal? And perhaps somewhere on the wiki https://ghc.haskell.org/trac/ghc/wiki/Commentary/Packages Thanks Simon | -----Original Message----- | From: ghc-commits [mailto:ghc-commits-bounces@haskell.org] On Behalf Of | git@git.haskell.org | Sent: 26 July 2014 02:08 | To: ghc-commits@haskell.org | Subject: [commit: ghc] master: Module reexports, fixing #8407. | (7f5c1086) | | Repository : ssh://git@git.haskell.org/ghc | | On branch : master | Link : | http://ghc.haskell.org/trac/ghc/changeset/7f5c10864e7c26b90c7ff4ed09d00 | c8a09aa4349/ghc | | >--------------------------------------------------------------- | | commit 7f5c10864e7c26b90c7ff4ed09d00c8a09aa4349 | Author: Edward Z. Yang <ezyang@cs.stanford.edu> | Date: Fri Jul 4 17:01:08 2014 +0100 | | Module reexports, fixing #8407. | | The general approach is to add a new field to the package database, | reexported-modules, which considered by the module finder as | possible | module declarations. Unlike declaring stub module files, multiple | reexports of the same physical package at the same name do not | result in an ambiguous import. | | Has submodule updates for Cabal and haddock. | | NB: When a reexport renames a module, that renaming is *not* | accessible | from inside the package. This is not so much a deliberate design | choice | as for implementation expediency (reexport resolution happens only | when | a package is in the package database.) | | TODO: Error handling when there are duplicate reexports/etc is not | very | well tested. | | Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> | | Conflicts: | compiler/main/HscTypes.lhs | testsuite/.gitignore | utils/haddock | | | >--------------------------------------------------------------- | | 7f5c10864e7c26b90c7ff4ed09d00c8a09aa4349 | compiler/main/DynFlags.hs | 1 + | compiler/main/Finder.lhs | 25 +++-- | compiler/main/GHC.hs | 12 ++- | compiler/main/HscTypes.lhs | 6 +- | compiler/main/PackageConfig.hs | 4 + | compiler/main/Packages.lhs | 109 | ++++++++++++++++----- | ghc/InteractiveUI.hs | 8 +- | libraries/Cabal | 2 +- | .../Distribution/InstalledPackageInfo/Binary.hs | 8 ++ | testsuite/.gitignore | 8 ++ | testsuite/tests/cabal/Makefile | 15 +++ | testsuite/tests/cabal/all.T | 6 ++ | testsuite/tests/cabal/cabal05/Makefile | 69 +++++++++++++ | .../{driver/T3007/A => cabal/cabal05}/Setup.hs | 0 | testsuite/tests/cabal/{cabal03 => cabal05}/all.T | 4 +- | .../tests/cabal/cabal05/p/LICENSE | 0 | testsuite/tests/cabal/cabal05/p/P.hs | 3 + | testsuite/tests/cabal/cabal05/p/P2.hs | 1 + | .../{driver/T3007/A => cabal/cabal05/p}/Setup.hs | 0 | testsuite/tests/cabal/cabal05/p/p.cabal | 11 +++ | .../tests/cabal/cabal05/q/LICENSE | 0 | testsuite/tests/cabal/cabal05/q/Q.hs | 4 + | .../{driver/T3007/A => cabal/cabal05/q}/Setup.hs | 0 | testsuite/tests/cabal/cabal05/q/q.cabal | 29 ++++++ | .../tests/cabal/cabal05/r/LICENSE | 0 | testsuite/tests/cabal/cabal05/r/R.hs | 11 +++ | .../{driver/T3007/A => cabal/cabal05/r}/Setup.hs | 0 | testsuite/tests/cabal/cabal05/r/r.cabal | 32 ++++++ | .../tests/cabal/cabal05/s/LICENSE | 0 | testsuite/tests/cabal/cabal05/s/S.hs | 18 ++++ | .../{driver/T3007/A => cabal/cabal05/s}/Setup.hs | 0 | testsuite/tests/cabal/cabal05/s/s.cabal | 11 +++ | testsuite/tests/cabal/ghcpkg07.stdout | 11 +++ | .../{test4.pkg => recache_reexport_db/a.conf} | 20 ++-- | testsuite/tests/cabal/{test4.pkg => test7a.pkg} | 20 ++-- | testsuite/tests/cabal/test7b.pkg | 17 ++++ | utils/ghc-cabal/ghc-cabal.cabal | 3 +- | utils/ghc-pkg/Main.hs | 55 ++++++++++- | utils/ghc-pkg/ghc-pkg.cabal | 4 +- | utils/ghctags/ghctags.cabal | 3 +- | utils/haddock | 2 +- | 41 files changed, 453 insertions(+), 79 deletions(-) | | Diff suppressed because of size. To see it, use: | | git diff-tree --root --patch-with-stat --no-color --find-copies- | harder --ignore-space-at-eol --cc | 7f5c10864e7c26b90c7ff4ed09d00c8a09aa4349 | _______________________________________________ | ghc-commits mailing list | ghc-commits@haskell.org | http://www.haskell.org/mailman/listinfo/ghc-commits