PackageConfig

ghc-6.10.1: The GHC API

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PackageConfig

Contents

PackageId
The PackageConfig type: information about a package

Description

Package configuration information: essentially the interface to Cabal, with some utilities

Synopsis

Documentation

Mostly the compiler deals in terms of PackageNames, which don't have the version suffix. This is so that we don't need to know the version for the -package-name flag, or know the versions of wired-in packages like base & rts. Versions are confined to the package sub-system.

This means that in theory you could have multiple base packages installed (for example), and switch between them using -package/-hide-package.

A PackageId is a string of the form pkg>-<version.

PackageId

mkPackageId :: PackageIdentifier -> PackageId

Turn a Cabal PackageIdentifier into a GHC PackageId

packageConfigId :: PackageConfig -> PackageId

Get the GHC PackageId right out of a Cabalish PackageConfig

unpackPackageId :: PackageId -> Maybe PackageIdentifier

Try and interpret a GHC PackageId as a cabal PackageIdentifer. Returns Nothing if we could not parse it as such an object.

The PackageConfig type: information about a package

type PackageConfig = InstalledPackageInfo_ ModuleName

defaultPackageConfig :: PackageConfig

packageConfigToInstalledPackageInfo :: PackageConfig -> InstalledPackageInfo

Turn a PackageConfig, which contains GHC ModuleNames into a Cabal specific InstalledPackageInfo which contains Cabal ModuleNames

installedPackageInfoToPackageConfig :: InstalledPackageInfo -> PackageConfig

Turn an InstalledPackageInfo, which contains Cabal ModuleNames into a GHC specific PackageConfig which contains GHC ModuleNames

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