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| author | Edward Z. Yang <ezyang@cs.stanford.edu> | 2015-06-23 13:15:17 -0700 |
|---|---|---|
| committer | Edward Z. Yang <ezyang@cs.stanford.edu> | 2015-07-23 13:35:45 -0700 |
| commit | f9687caf337d409e4735d5bb4cf73a7dc629a58c (patch) | |
| tree | 3f4d0bc7fcd74b66ad750eed4d134c4afdcb7803 /compiler/ghc.cabal.in | |
| parent | 5ff4daddd9bc8f424d8f71fb01ebbbae9d608cdf (diff) | |
| download | haskell-f9687caf337d409e4735d5bb4cf73a7dc629a58c.tar.gz | |
Library names, with Cabal submodule update
A library name is a package name, package version, and hash of the
version names of all textual dependencies (i.e. packages which were included.) A library
name is a coarse approximation of installed package IDs, which are suitable for
inclusion in package keys (you don't want to put an IPID in a package key, since
it means the key will change any time the source changes.)
- We define ShPackageKey, which is the semantic object which
is hashed into a PackageKey. You can use 'newPackageKey'
to hash a ShPackageKey to a PackageKey
- Given a PackageKey, we can lookup its ShPackageKey with
'lookupPackageKey'. The way we can do this is by consulting
the 'pkgKeyCache', which records a reverse mapping from
every hash to the ShPackageKey. This means that if you
load in PackageKeys from external sources (e.g. interface
files), you also need to load in a mapping of PackageKeys
to their ShPackageKeys so we can populate the cache.
- We define a 'LibraryName' which encapsulates the full
depenency resolution that Cabal may have selected; this
is opaque to GHC but can be used to distinguish different
versions of a package.
- Definite packages don't have an interesting PackageKey,
so we rely on Cabal to pass them to us.
- We can pretty-print package keys while displaying the
instantiation, but it's not wired up to anything (e.g.
the Outputable instance of PackageKey).
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
Test Plan: validate
Reviewers: austin, bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1056
GHC Trac Issues: #10566
Diffstat (limited to 'compiler/ghc.cabal.in')
| -rw-r--r-- | compiler/ghc.cabal.in | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/ghc.cabal.in b/compiler/ghc.cabal.in index 536c536995..28227f32bf 100644 --- a/compiler/ghc.cabal.in +++ b/compiler/ghc.cabal.in @@ -124,6 +124,7 @@ Library cbits/genSym.c hs-source-dirs: + backpack basicTypes cmm codeGen @@ -500,6 +501,7 @@ Library Vectorise Hoopl.Dataflow Hoopl + ShPackageKey -- CgInfoTbls used in ghci/DebuggerUtils -- CgHeapery mkVirtHeapOffsets used in ghci |