HeaderInfo

ghc-8.2.2: The GHC API

Safe Haskell | None
Language | Haskell2010

HeaderInfo

Description

Parsing the top of a Haskell source file to get its module name, imports and options.

(c) Simon Marlow 2005 (c) Lemmih 2006

Synopsis

- getImports :: DynFlags -> StringBuffer -> FilePath -> FilePath -> IO ([(Maybe FastString, Located ModuleName)], [(Maybe FastString, Located ModuleName)], Located ModuleName)
- mkPrelImports :: ModuleName -> SrcSpan -> Bool -> [LImportDecl RdrName] -> [LImportDecl RdrName]
- getOptionsFromFile :: DynFlags -> FilePath -> IO [Located String]
- getOptions :: DynFlags -> StringBuffer -> FilePath -> [Located String]
- optionsErrorMsgs :: DynFlags -> [String] -> [Located String] -> FilePath -> Messages
- checkProcessArgsResult :: MonadIO m => DynFlags -> [Located String] -> m ()

# Documentation

getImports Source #

Arguments

:: DynFlags |
-> StringBuffer | Parse this.
-> FilePath | Filename the buffer came from. Used for reporting parse error locations.
-> FilePath | The original source filename (used for locations in the function result)
-> IO ([(Maybe FastString, Located ModuleName)], [(Maybe FastString, Located ModuleName)], Located ModuleName) | The source imports, normal imports, and the module name.

Parse the imports of a source file.

Throws a `SourceError` if parsing fails.

mkPrelImports :: ModuleName -> SrcSpan -> Bool -> [LImportDecl RdrName] -> [LImportDecl RdrName] Source #

getOptionsFromFile Source #

Arguments

:: DynFlags |
-> FilePath | Input file
-> IO [Located String] | Parsed options, if any.

Parse OPTIONS and LANGUAGE pragmas of the source file.

Throws a `SourceError` if flag parsing fails (including unsupported flags.)

getOptions Source #

Arguments

:: DynFlags |
-> StringBuffer | Input Buffer
-> FilePath | Source filename. Used for location info.
-> [Located String] | Parsed options.

Parse OPTIONS and LANGUAGE pragmas of the source file.

Throws a `SourceError` if flag parsing fails (including unsupported flags.)

optionsErrorMsgs :: DynFlags -> [String] -> [Located String] -> FilePath -> Messages Source #

checkProcessArgsResult :: MonadIO m => DynFlags -> [Located String] -> m () Source #

Complain about non-dynamic flags in OPTIONS pragmas.

Throws a `SourceError` if the input list is non-empty claiming that the input flags are unknown.