Haskell Language Modules Hierarchical module names
Example
The names of modules follow the filesystem's hierarchical structure. With the following file layout:
Foo/
├── Baz/
│ └── Quux.hs
└── Bar.hs
Foo.hs
Bar.hs
the module headers would look like this:
-- file Foo.hs
module Foo where
-- file Bar.hs
module Bar where
-- file Foo/Bar.hs
module Foo.Bar where
-- file Foo/Baz/Quux.hs
module Foo.Baz.Quux where
Note that:
- the module name is based on the path of the file declaring the module
- Folders may share a name with a module, which gives a naturally hierarchical naming structure to modules
