[Simplify test suite and add tests David Waern **20080412185723 I move all tests into one single directory to simplify things, and add a test for the last bug that was fixed. ] { hunk ./tests/extensions/TypeOperators.hs 1 -module TypeOperators ( - -- * stuff - (:-:), - (:+:), - Op, - O(..), - biO, - Flip(..) -) where - -data a :-: b - -data (a :+: b) c - -data a `Op` b - -newtype (g `O` f) a = O { unO :: g (f a) } - -biO :: (g `O` f) a -biO = undefined - -newtype Flip (~>) b a = Flip { unFlip :: a ~> b } rmfile ./tests/extensions/TypeOperators.hs hunk ./tests/extensions/TypeOperators.html.ref 1 - - -TypeOperators
ContentsIndex
TypeOperators
Contents
stuff -
Synopsis
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a = O {
unO :: g (f a)
}
biO :: (g `O` f) a
newtype Flip (~>) b a = Flip {
unFlip :: a ~> b
}
stuff -
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a
Constructors
O
unO :: g (f a)
biO :: (g `O` f) a
newtype Flip (~>) b a
Constructors
Flip
unFlip :: a ~> b
Produced by Haddock version 2.0.0.0
rmfile ./tests/extensions/TypeOperators.html.ref rmdir ./tests/extensions adddir ./tests/output hunk ./tests/pre-2.0-tests/A.hs 1 -module A where -data A = A rmfile ./tests/pre-2.0-tests/A.hs hunk ./tests/pre-2.0-tests/A.html.ref 1 - - -A
ContentsIndex
A
Documentation
data A
Constructors
A
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/A.html.ref hunk ./tests/pre-2.0-tests/B.hs 1 -module B ( module A ) where -import A rmfile ./tests/pre-2.0-tests/B.hs hunk ./tests/pre-2.0-tests/B.html.ref 1 - - -B
ContentsIndex
B
Documentation
module A
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/B.html.ref hunk ./tests/pre-2.0-tests/Bug1.hs 1 -module Bug1 where - --- | We should have different anchors for constructors and types\/classes. This --- hyperlink should point to the type constructor by default: 'T'. -data T = T - rmfile ./tests/pre-2.0-tests/Bug1.hs hunk ./tests/pre-2.0-tests/Bug1.html.ref 1 - - -Bug1
ContentsIndex
Bug1
Synopsis
data T = T
Documentation
data T
We should have different anchors for constructors and types/classes. This - hyperlink should point to the type constructor by default: T. -
Constructors
T
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug1.html.ref hunk ./tests/pre-2.0-tests/Bug2.hs 1 -module Bug2 ( x ) where -import B -x :: A -x = A rmfile ./tests/pre-2.0-tests/Bug2.hs hunk ./tests/pre-2.0-tests/Bug2.html.ref 1 - - -Bug2
ContentsIndex
Bug2
Documentation
x :: A
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug2.html.ref hunk ./tests/pre-2.0-tests/Bug3.hs 1 -module Bug3 where - --- | /multi-line --- emphasis/ -foo :: Int -foo = undefined rmfile ./tests/pre-2.0-tests/Bug3.hs hunk ./tests/pre-2.0-tests/Bug3.html.ref 1 - - -Bug3
ContentsIndex
Bug3
Synopsis
foo :: Int
Documentation
foo :: Int
/multi-line - emphasis/ -
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug3.html.ref hunk ./tests/pre-2.0-tests/Bug4.hs 1 -module Bug4 where --- | don't use apostrophe's in the wrong place's -foo :: Int -foo = undefined - rmfile ./tests/pre-2.0-tests/Bug4.hs hunk ./tests/pre-2.0-tests/Bug4.html.ref 1 - - -Bug4
ContentsIndex
Bug4
Synopsis
foo :: Int
Documentation
foo :: Int
don't use apostrophe's in the wrong place's -
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug4.html.ref hunk ./tests/pre-2.0-tests/Bug6.hs 1 --- | Exporting records. -module Bug6( A(A), B(B), b, C(C,c1,c2), D(D,d1), E(E) ) where - --- | --- This record is exported without its field -data A = A { a :: Int } - --- | --- .. with its field, but the field is named separately in the export list --- (should still be visible as a field name) -data B = B { b :: Int } - --- | --- .. with fields names as subordinate names in the export -data C = C { c1 :: Int, c2 :: Int } - --- | --- .. with only some of the fields exported (we can't handle this one - --- how do we render the declaration?) -data D = D { d1 :: Int, d2 :: Int } - --- | a newtype with a field -newtype E = E { e :: Int } rmfile ./tests/pre-2.0-tests/Bug6.hs hunk ./tests/pre-2.0-tests/Bug6.html.ref 1 - - -Bug6
ContentsIndex
Bug6
Description
Exporting records. -
Synopsis
data A = A Int
data B = B {
b :: Int
}
b :: B -> Int
data C = C {
c1 :: Int
c2 :: Int
}
data D = D Int Int
newtype E = E Int
Documentation
data A
This record is exported without its field -
Constructors
A Int
data B
.. with its field, but the field is named separately in the export list - (should still be visible as a field name) -
Constructors
B
b :: Int
b :: B -> Int
data C
.. with fields names as subordinate names in the export -
Constructors
C
c1 :: Int
c2 :: Int
data D
.. with only some of the fields exported (we can't handle this one - - how do we render the declaration?) -
Constructors
D Int Int
newtype E
a newtype with a field -
Constructors
E Int
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug6.html.ref hunk ./tests/pre-2.0-tests/Bug7.hs 1 --- | This module caused a duplicate instance in the documentation for the Foo --- type. -module Bug7 where - --- | The Foo datatype -data Foo = Foo - --- | The Bar class -class Bar x y - --- | Just one instance -instance Bar Foo Foo rmfile ./tests/pre-2.0-tests/Bug7.hs hunk ./tests/pre-2.0-tests/Bug7.html.ref 1 - - -Bug7
ContentsIndex
Bug7
Description
This module caused a duplicate instance in the documentation for the Foo - type. -
Synopsis
data Foo = Foo
class Bar x y
Documentation
data Foo
The Foo datatype -
Constructors
Foo
show/hide Instances
class Bar x y
The Bar class -
show/hide Instances
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug7.html.ref hunk ./tests/pre-2.0-tests/Bug8.hs 1 -{- Note that declarations without type signatures are not included in the - documentation. They could be, but that's a missing feature. -} - -module Bug8 where - -infix --> -infix ---> - -data Typ = Type (String,[Typ]) - | TFree (String, [String]) - -x --> y = Type("fun",[s,t]) -(--->) = flip $ foldr (-->) - -s = undefined -t = undefined -main = undefined rmfile ./tests/pre-2.0-tests/Bug8.hs hunk ./tests/pre-2.0-tests/Bug8.html.ref 1 - - -Bug8
ContentsIndex
Bug8
Documentation
data Typ
Constructors
Type (String, [Typ])
TFree (String, [String])
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Bug8.html.ref hunk ./tests/pre-2.0-tests/Hash.hs 1 -{- | - Implementation of fixed-size hash tables, with a type - class for constructing hash values for structured types. --} -module Hash ( - -- * The @HashTable@ type - HashTable, - - -- ** Operations on @HashTable@s - new, insert, lookup, - - -- * The @Hash@ class - Hash(..), - ) where - -import Array -import Prelude hiding (lookup) - --- | A hash table with keys of type @key@ and values of type @val@. --- The type @key@ should be an instance of 'Eq'. -data HashTable key val = HashTable Int (Array Int [(key,val)]) - --- | Builds a new hash table with a given size -new :: (Eq key, Hash key) => Int -> IO (HashTable key val) -new = undefined - --- | Inserts a new element into the hash table -insert :: (Eq key, Hash key) => key -> val -> IO () -insert = undefined - --- | Looks up a key in the hash table, returns @'Just' val@ if the key --- was found, or 'Nothing' otherwise. -lookup :: Hash key => key -> IO (Maybe val) -lookup = undefined - --- | A class of types which can be hashed. -class Hash a where - -- | hashes the value of type @a@ into an 'Int' - hash :: a -> Int - -instance Hash Int where - hash = id - -instance Hash Float where - hash = trunc - -instance (Hash a, Hash b) => Hash (a,b) where - hash (a,b) = hash a `xor` hash b - -trunc = undefined -xor = undefined rmfile ./tests/pre-2.0-tests/Hash.hs hunk ./tests/pre-2.0-tests/Hash.html.ref 1 - - -Hash
ContentsIndex
Hash
Contents
The HashTable type -
Operations on HashTables -
The Hash class -
Description
Implementation of fixed-size hash tables, with a type - class for constructing hash values for structured types. -
Synopsis
data HashTable key val
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
insert :: (Eq key, Hash key) => key -> val -> IO ()
lookup :: Hash key => key -> IO (Maybe val)
class Hash a where
hash :: a -> Int
The HashTable type -
data HashTable key val
A hash table with keys of type key and values of type val. - The type key should be an instance of Eq. -
Operations on HashTables -
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
Builds a new hash table with a given size -
insert :: (Eq key, Hash key) => key -> val -> IO ()
Inserts a new element into the hash table -
lookup :: Hash key => key -> IO (Maybe val)
Looks up a key in the hash table, returns Just val if the key - was found, or Nothing otherwise. -
The Hash class -
class Hash a where
A class of types which can be hashed. -
Methods
hash :: a -> Int
hashes the value of type a into an Int -
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Hash.html.ref hunk ./tests/pre-2.0-tests/Hidden.hs 1 -{-# OPTIONS_HADDOCK hide #-} -module Hidden where -hidden :: Int -> Int -hidden a = a rmfile ./tests/pre-2.0-tests/Hidden.hs hunk ./tests/pre-2.0-tests/Hidden.html.ref 1 - - -Hidden
ContentsIndex
Hidden
Documentation
hidden :: Int -> Int
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Hidden.html.ref hunk ./tests/pre-2.0-tests/NoLayout.hs 1 - --- Haddock comments are parsed as separate declarations so we --- need to insert a ';' when using them with explicit layout. --- This should probably be changed. - -module NoLayout where { - -- | the class 'C' - ; - g :: Int; - g = undefined - } - rmfile ./tests/pre-2.0-tests/NoLayout.hs hunk ./tests/pre-2.0-tests/NoLayout.html.ref 1 - - -NoLayout
ContentsIndex
NoLayout
Synopsis
g :: Int
Documentation
g :: Int
the class C -
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/NoLayout.html.ref hunk ./tests/pre-2.0-tests/Test.hs 1 ------------------------------------------------------------------------------ --- | --- Module : Test --- Copyright : (c) Simon Marlow 2002 --- License : BSD-style --- --- Maintainer : libraries@haskell.org --- Stability : provisional --- Portability : portable --- --- This module illustrates & tests most of the features of Haddock. --- Testing references from the description: 'T', 'f', 'g', 'Visible.visible'. --- ------------------------------------------------------------------------------ - --- This is plain comment, ignored by Haddock. - -module Test ( - - -- Section headings are introduced with '-- *': - -- * Type declarations - - -- Subsection headings are introduced with '-- **' and so on. - -- ** Data types - T(..), T2, T3(..), T4(..), T5(..), T6(..), - N1(..), N2(..), N3(..), N4, N5(..), N6(..), N7(..), - - -- ** Records - R(..), R1(..), - - -- | test that we can export record selectors on their own: - p, q, u, - - -- * Class declarations - C(a,b), D(..), E, F(..), - - -- | Test that we can export a class method on its own: - a, - - -- * Function types - f, g, - - -- * Auxiliary stuff - - -- $aux1 - - -- $aux2 - - -- $aux3 - - -- $aux4 - - -- $aux5 - - -- $aux6 - - -- $aux7 - - -- $aux8 - - -- $aux9 - - -- $aux10 - - -- $aux11 - - -- $aux12 - - -- | This is some inline documentation in the export list - -- - -- > a code block using bird-tracks - -- > each line must begin with > (which isn't significant unless it - -- > is at the beginning of the line). - - -- * A hidden module - module Hidden, - - -- * A visible module - module Visible, - - {-| nested-style doc comments -} - - -- * Existential \/ Universal types - Ex(..), - - -- * Type signatures with argument docs - k, l, m, o, - - -- * A section - -- and without an intervening comma: - -- ** A subsection - -{-| - > a literal line - - $ a non /literal/ line $ --} - - f' - ) where - -import Hidden -import Visible -import Data.Maybe - -bla = Nothing - --- | This comment applies to the /following/ declaration --- and it continues until the next non-comment line -data T a b - = A Int (Maybe Float) -- ^ This comment describes the 'A' constructor - | -- | This comment describes the 'B' constructor - B (T a b, T Int Float) -- ^ - --- | An abstract data declaration -data T2 a b = T2 a b - --- | A data declaration with no documentation annotations on the constructors -data T3 a b = A1 a | B1 b - --- A data declaration with no documentation annotations at all -data T4 a b = A2 a | B2 b - --- A data declaration documentation on the constructors only -data T5 a b - = A3 a -- ^ documents 'A3' - | B3 b -- ^ documents 'B3' - --- | Testing alternative comment styles -data T6 - -- | This is the doc for 'A4' - = A4 - | B4 - | -- ^ This is the doc for 'B4' - - -- | This is the doc for 'C4' - C4 - --- | A newtype -newtype N1 a = N1 a - --- | A newtype with a fieldname -newtype N2 a b = N2 {n :: a b} - --- | A newtype with a fieldname, documentation on the field -newtype N3 a b = N3 {n3 :: a b -- ^ this is the 'n3' field - } - --- | An abstract newtype - we show this one as data rather than newtype because --- the difference isn\'t visible to the programmer for an abstract type. -newtype N4 a b = N4 a - -newtype N5 a b = N5 {n5 :: a b -- ^ no docs on the datatype or the constructor - } - -newtype N6 a b = N6 {n6 :: a b - } - -- ^ docs on the constructor only - --- | docs on the newtype and the constructor -newtype N7 a b = N7 {n7 :: a b - } - -- ^ The 'N7' constructor - - -class (D a) => C a where - -- |this is a description of the 'a' method - a :: IO a - b :: [a] - -- ^ this is a description of the 'b' method - c :: a -- c is hidden in the export list - --- ^ This comment applies to the /previous/ declaration (the 'C' class) - -class D a where - d :: T a b - e :: (a,a) --- ^ This is a class declaration with no separate docs for the methods - -instance D Int where - d = undefined - e = undefined - --- instance with a qualified class name -instance Test.D Float where - d = undefined - e = undefined - -class E a where - ee :: a --- ^ This is a class declaration with no methods (or no methods exported) - --- This is a class declaration with no documentation at all -class F a where - ff :: a - --- | This is the documentation for the 'R' record, which has four fields, --- 'p', 'q', 'r', and 's'. -data R = - -- | This is the 'C1' record constructor, with the following fields: - C1 { p :: Int -- ^ This comment applies to the 'p' field - , q :: forall a . a->a -- ^ This comment applies to the 'q' field - , -- | This comment applies to both 'r' and 's' - r,s :: Int - } - | C2 { t :: T1 -> (T2 Int Int)-> (T3 Bool Bool) -> (T4 Float Float) -> T5 () (), - u,v :: Int - } - -- ^ This is the 'C2' record constructor, also with some fields: - --- | Testing different record commenting styles -data R1 - -- | This is the 'C3' record constructor - = C3 { - -- | The 's1' record selector - s1 :: Int - -- | The 's2' record selector - , s2 :: Int - , s3 :: Int -- NOTE: In the original examples/Test.hs in Haddock, there is an extra "," here. - -- Since GHC doesn't allow that, I have removed it in this file. - -- ^ The 's3' record selector - } - --- These section headers are only used when there is no export list to --- give the structure of the documentation: - --- * This is a section header (level 1) --- ** This is a section header (level 2) --- *** This is a section header (level 3) - -{-| -In a comment string we can refer to identifiers in scope with -single quotes like this: 'T', and we can refer to modules by -using double quotes: "Foo". We can add emphasis /like this/. - - * This is a bulleted list - - - This is the next item (different kind of bullet) - - (1) This is an ordered list - - 2. This is the next item (different kind of bullet) - -@ - This is a block of code, which can include other markup: 'R' - formatting - is - significant -@ - -> this is another block of code - -We can also include URLs in documentation: . --} - -f :: C a => a -> Int - --- | we can export foreign declarations too -foreign import ccall g :: Int -> IO CInt - --- | this doc string has a parse error in it: \' -h :: Int -h = 42 - - --- $aux1 This is some documentation that is attached to a name ($aux1) --- rather than a source declaration. The documentation may be --- referred to in the export list using its name. --- --- @ code block in named doc @ - --- $aux2 This is some documentation that is attached to a name ($aux2) - --- $aux3 --- @ code block on its own in named doc @ - --- $aux4 --- --- @ code block on its own in named doc (after newline) @ - -{- $aux5 a nested, named doc comment - - with a paragraph, - - @ and a code block @ --} - --- some tests for various arrangements of code blocks: - -{- $aux6 ->test ->test1 - -@ test2 - test3 -@ --} - -{- $aux7 -@ -test1 -test2 -@ --} - -{- $aux8 ->test3 ->test4 --} - -{- $aux9 -@ -test1 -test2 -@ - ->test3 ->test4 --} - -{- $aux10 ->test3 ->test4 - -@ -test1 -test2 -@ --} - --- This one is currently wrong (Haddock 0.4). The @...@ part is --- interpreted as part of the bird-tracked code block. -{- $aux11 -aux11: - ->test3 ->test4 - -@ -test1 -test2 -@ --} - --- $aux12 --- > foo --- --- > bar --- - --- | A data-type using existential\/universal types -data Ex a - = forall b . C b => Ex1 b - | forall b . Ex2 b - | forall b . C a => Ex3 b -- NOTE: I have added "forall b" here make GHC accept this file - | Ex4 (forall a . a -> a) - --- | This is a function with documentation for each argument -k :: T () () -- ^ This argument has type 'T' - -> (T2 Int Int) -- ^ This argument has type 'T2 Int Int' - -> (T3 Bool Bool -> T4 Float Float) -- ^ This argument has type @T3 Bool Bool -> T4 Float Float@ - -> T5 () () -- ^ This argument has a very long description that should - -- hopefully cause some wrapping to happen when it is finally - -- rendered by Haddock in the generated HTML page. - -> IO () -- ^ This is the result type - --- This function has arg docs but no docs for the function itself -l :: (Int, Int, Float) -- ^ takes a triple - -> Int -- ^ returns an 'Int' - --- | This function has some arg docs -m :: R - -> N1 () -- ^ one of the arguments - -> IO Int -- ^ and the return value - --- | This function has some arg docs but not a return value doc - --- can't use the original name ('n') with GHC -newn :: R -- ^ one of the arguments, an 'R' - -> N1 () -- ^ one of the arguments - -> IO Int -newn = undefined - - --- | A foreign import with argument docs -foreign import ccall unsafe - o :: Float -- ^ The input float - -> IO Float -- ^ The output float - --- | We should be able to escape this: \#\#\# - --- p :: Int --- can't use the above original definition with GHC -newp :: Int -newp = undefined - --- | a function with a prime can be referred to as 'f'' --- but f' doesn't get link'd 'f\'' -f' :: Int - - --- Add some definitions here so that this file can be compiled with GHC - -data T1 -f = undefined -f' = undefined -type CInt = Int -k = undefined -l = undefined -m = undefined rmfile ./tests/pre-2.0-tests/Test.hs hunk ./tests/pre-2.0-tests/Test.html.ref 1 - - -Test
ContentsIndex
Test
Portabilityportable
Stabilityprovisional
Maintainerlibraries@haskell.org
Contents
Type declarations -
Data types -
Records -
Class declarations -
Function types -
Auxiliary stuff -
A hidden module -
A visible module -
Existential / Universal types -
Type signatures with argument docs -
A section -
A subsection -
Description
This module illustrates & tests most of the features of Haddock. - Testing references from the description: T, f, g, visible. -
Synopsis
data T a b
= A Int Maybe Float
| B (T a b, T Int Float)
data T2 a b
data T3 a b
= A1 a
| B1 b
data T4 a b
= A2 a
| B2 b
data T5 a b
= A3 a
| B3 b
data T6
= A4
| B4
| C4
newtype N1 a = N1 a
newtype N2 a b = N2 {
n :: a b
}
newtype N3 a b = N3 {
n3 :: a b
}
data N4 a b
newtype N5 a b = N5 {
n5 :: a b
}
newtype N6 a b = N6 {
n6 :: a b
}
newtype N7 a b = N7 {
n7 :: a b
}
data R
= C1 {
p :: Int
q :: forall a. a -> a
r :: Int
s :: Int
}
| C2 {
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
}
data R1 = C3 {
s1 :: Int
s2 :: Int
s3 :: Int
}
p :: R -> Int
q :: R -> forall a. a -> a
u :: R -> Int
class D a => C a where
a :: IO a
b :: [a]
class D a where
d :: T a b
e :: (a, a)
class E a
class F a where
ff :: a
a :: C a => IO a
f :: C a => a -> Int
g :: Int -> IO CInt
hidden :: Int -> Int
module Visible
data Ex a
= forall b . C b => Ex1 b
| forall b . Ex2 b
| forall b . C a => Ex3 b
| Ex4 forall a. a -> a
k :: T () () -> T2 Int Int -> T3 Bool Bool -> T4 Float Float -> T5 () () -> IO ()
l :: (Int, Int, Float) -> Int
m :: R -> N1 () -> IO Int
o :: Float -> IO Float
f' :: Int
Type declarations -
Data types -
data T a b
This comment applies to the following declaration - and it continues until the next non-comment line -
Constructors
A Int Maybe FloatThis comment describes the A constructor -
B (T a b, T Int Float)This comment describes the B constructor -
data T2 a b
An abstract data declaration -
data T3 a b
A data declaration with no documentation annotations on the constructors -
Constructors
A1 a
B1 b
data T4 a b
Constructors
A2 a
B2 b
data T5 a b
Constructors
A3 adocuments A3 -
B3 bdocuments B3 -
data T6
Testing alternative comment styles -
Constructors
A4This is the doc for A4 -
B4This is the doc for B4 -
C4This is the doc for C4 -
newtype N1 a
A newtype -
Constructors
N1 a
newtype N2 a b
A newtype with a fieldname -
Constructors
N2
n :: a b
newtype N3 a b
A newtype with a fieldname, documentation on the field -
Constructors
N3
n3 :: a bthis is the n3 field -
data N4 a b
An abstract newtype - we show this one as data rather than newtype because - the difference isn't visible to the programmer for an abstract type. -
newtype N5 a b
Constructors
N5
n5 :: a bno docs on the datatype or the constructor -
newtype N6 a b
Constructors
N6docs on the constructor only -
n6 :: a b
newtype N7 a b
docs on the newtype and the constructor -
Constructors
N7The N7 constructor -
n7 :: a b
Records -
data R
This is the documentation for the R record, which has four fields, - p, q, r, and s. -
Constructors
C1This is the C1 record constructor, with the following fields: -
p :: IntThis comment applies to the p field -
q :: forall a. a -> aThis comment applies to the q field -
r :: IntThis comment applies to both r and s -
s :: IntThis comment applies to both r and s -
C2This is the C2 record constructor, also with some fields: -
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
data R1
Testing different record commenting styles -
Constructors
C3This is the C3 record constructor -
s1 :: IntThe s1 record selector -
s2 :: IntThe s2 record selector -
s3 :: IntThe s3 record selector -
test that we can export record selectors on their own: -
p :: R -> Int
This comment applies to the p field -
q :: R -> forall a. a -> a
This comment applies to the q field -
u :: R -> Int
Class declarations -
class D a => C a where
This comment applies to the previous declaration (the C class) -
Methods
a :: IO a
this is a description of the a method -
b :: [a]
this is a description of the b method -
class D a where
This is a class declaration with no separate docs for the methods -
Methods
d :: T a b
e :: (a, a)
class E a
This is a class declaration with no methods (or no methods exported) -
class F a where
Methods
ff :: a
Test that we can export a class method on its own: -
a :: C a => IO a
this is a description of the a method -
Function types -
f :: C a => a -> Int

In a comment string we can refer to identifiers in scope with -single quotes like this: T, and we can refer to modules by -using double quotes: Foo. We can add emphasis like this. -

  • This is a bulleted list -
  • This is the next item (different kind of bullet) -
  1. This is an ordered list -

2. This is the next item (different kind of bullet) -

-     This is a block of code, which can include other markup: R
-     formatting
-               is
-                 significant
-
 this is another block of code
-

We can also include URLs in documentation: http://www.haskell.org/. -

g :: Int -> IO CInt
we can export foreign declarations too -
Auxiliary stuff -

This is some documentation that is attached to a name ($aux1) - rather than a source declaration. The documentation may be - referred to in the export list using its name. -

 code block in named doc
This is some documentation that is attached to a name ($aux2) -
 code block on its own in named doc
 code block on its own in named doc (after newline)

a nested, named doc comment -

with a paragraph, -

 and a code block
test
-test1
-
 test2
-  test3
-
-test1
-test2
-
test3
-test4
-
-test1
-test2
-
test3
-test4
-
test3
-test4
-
-test1
-test2
-

aux11: -

test3
-test4
-
-test1
-test2
-
 foo
-
 bar
-

This is some inline documentation in the export list -

 a code block using bird-tracks
- each line must begin with > (which isn't significant unless it
- is at the beginning of the line).
-
A hidden module -
hidden :: Int -> Int
A visible module -
module Visible
nested-style doc comments -
Existential / Universal types -
data Ex a
A data-type using existential/universal types -
Constructors
forall b . C b => Ex1 b
forall b . Ex2 b
forall b . C a => Ex3 b
Ex4 forall a. a -> a
Type signatures with argument docs -
k
:: T () ()This argument has type T -
-> T2 Int IntThis argument has type 'T2 Int Int' -
-> T3 Bool Bool -> T4 Float FloatThis argument has type T3 Bool Bool -> T4 Float Float -
-> T5 () ()This argument has a very long description that should - hopefully cause some wrapping to happen when it is finally - rendered by Haddock in the generated HTML page. -
-> IO ()This is the result type -
This is a function with documentation for each argument -
l
:: (Int, Int, Float)takes a triple -
-> Intreturns an Int -
m
:: R
-> N1 ()one of the arguments -
-> IO Intand the return value -
This function has some arg docs -
o
:: FloatThe input float -
-> IO FloatThe output float -
A foreign import with argument docs -
A section -
A subsection -
 a literal line
-

$ a non literal line $ -

f' :: Int
a function with a prime can be referred to as f' - but f' doesn't get link'd 'f\'' -
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Test.html.ref hunk ./tests/pre-2.0-tests/Visible.hs 1 -module Visible where -visible :: Int -> Int -visible a = a rmfile ./tests/pre-2.0-tests/Visible.hs hunk ./tests/pre-2.0-tests/Visible.html.ref 1 - - -Visible
ContentsIndex
Visible
Documentation
visible :: Int -> Int
Produced by Haddock version 2.0.0.0
rmfile ./tests/pre-2.0-tests/Visible.html.ref rmdir ./tests/pre-2.0-tests adddir ./tests/tests addfile ./tests/copy.hs addfile ./tests/output/A.html hunk ./tests/output/A.html 1 + + +A
ContentsIndex
A
Documentation
data A
Constructors
A
Produced by Haddock version 2.1.0
addfile ./tests/output/A.html.ref hunk ./tests/output/A.html.ref 1 + + +A
ContentsIndex
A
Documentation
data A
Constructors
A
Produced by Haddock version 2.1.0
addfile ./tests/output/B.html hunk ./tests/output/B.html 1 + + +B
ContentsIndex
B
Documentation
module A
Produced by Haddock version 2.1.0
addfile ./tests/output/B.html.ref hunk ./tests/output/B.html.ref 1 + + +B
ContentsIndex
B
Documentation
module A
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug1.html hunk ./tests/output/Bug1.html 1 + + +Bug1
ContentsIndex
Bug1
Synopsis
data T = T
Documentation
data T
We should have different anchors for constructors and types/classes. This + hyperlink should point to the type constructor by default: T. +
Constructors
T
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug1.html.ref hunk ./tests/output/Bug1.html.ref 1 + + +Bug1
ContentsIndex
Bug1
Synopsis
data T = T
Documentation
data T
We should have different anchors for constructors and types/classes. This + hyperlink should point to the type constructor by default: T. +
Constructors
T
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug2.html hunk ./tests/output/Bug2.html 1 + + +Bug2
ContentsIndex
Bug2
Documentation
x :: A
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug2.html.ref hunk ./tests/output/Bug2.html.ref 1 + + +Bug2
ContentsIndex
Bug2
Documentation
x :: A
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug3.html hunk ./tests/output/Bug3.html 1 + + +Bug3
ContentsIndex
Bug3
Synopsis
foo :: Int
Documentation
foo :: Int
/multi-line + emphasis/ +
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug3.html.ref hunk ./tests/output/Bug3.html.ref 1 + + +Bug3
ContentsIndex
Bug3
Synopsis
foo :: Int
Documentation
foo :: Int
/multi-line + emphasis/ +
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug4.html hunk ./tests/output/Bug4.html 1 + + +Bug4
ContentsIndex
Bug4
Synopsis
foo :: Int
Documentation
foo :: Int
don't use apostrophe's in the wrong place's +
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug4.html.ref hunk ./tests/output/Bug4.html.ref 1 + + +Bug4
ContentsIndex
Bug4
Synopsis
foo :: Int
Documentation
foo :: Int
don't use apostrophe's in the wrong place's +
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug6.html hunk ./tests/output/Bug6.html 1 + + +Bug6
ContentsIndex
Bug6
Description
Exporting records. +
Synopsis
data A = A Int
data B = B {
b :: Int
}
b :: B -> Int
data C = C {
c1 :: Int
c2 :: Int
}
data D = D Int Int
newtype E = E Int
Documentation
data A
This record is exported without its field +
Constructors
A Int
data B
.. with its field, but the field is named separately in the export list + (should still be visible as a field name) +
Constructors
B
b :: Int
b :: B -> Int
data C
.. with fields names as subordinate names in the export +
Constructors
C
c1 :: Int
c2 :: Int
data D
.. with only some of the fields exported (we can't handle this one - + how do we render the declaration?) +
Constructors
D Int Int
newtype E
a newtype with a field +
Constructors
E Int
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug6.html.ref hunk ./tests/output/Bug6.html.ref 1 + + +Bug6
ContentsIndex
Bug6
Description
Exporting records. +
Synopsis
data A = A Int
data B = B {
b :: Int
}
b :: B -> Int
data C = C {
c1 :: Int
c2 :: Int
}
data D = D Int Int
newtype E = E Int
Documentation
data A
This record is exported without its field +
Constructors
A Int
data B
.. with its field, but the field is named separately in the export list + (should still be visible as a field name) +
Constructors
B
b :: Int
b :: B -> Int
data C
.. with fields names as subordinate names in the export +
Constructors
C
c1 :: Int
c2 :: Int
data D
.. with only some of the fields exported (we can't handle this one - + how do we render the declaration?) +
Constructors
D Int Int
newtype E
a newtype with a field +
Constructors
E Int
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug7.html hunk ./tests/output/Bug7.html 1 + + +Bug7
ContentsIndex
Bug7
Description
This module caused a duplicate instance in the documentation for the Foo + type. +
Synopsis
data Foo = Foo
class Bar x y
Documentation
data Foo
The Foo datatype +
Constructors
Foo
show/hide Instances
class Bar x y
The Bar class +
show/hide Instances
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug7.html.ref hunk ./tests/output/Bug7.html.ref 1 + + +Bug7
ContentsIndex
Bug7
Description
This module caused a duplicate instance in the documentation for the Foo + type. +
Synopsis
data Foo = Foo
class Bar x y
Documentation
data Foo
The Foo datatype +
Constructors
Foo
show/hide Instances
class Bar x y
The Bar class +
show/hide Instances
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug8.html hunk ./tests/output/Bug8.html 1 + + +Bug8
ContentsIndex
Bug8
Documentation
data Typ
Constructors
Type (String, [Typ])
TFree (String, [String])
Produced by Haddock version 2.1.0
addfile ./tests/output/Bug8.html.ref hunk ./tests/output/Bug8.html.ref 1 + + +Bug8
ContentsIndex
Bug8
Documentation
data Typ
Constructors
Type (String, [Typ])
TFree (String, [String])
Produced by Haddock version 2.1.0
addfile ./tests/output/Bugs.html hunk ./tests/output/Bugs.html 1 + + +Bugs
ContentsIndex
Bugs
Documentation
data A a
Constructors
A a (a -> Int)
Produced by Haddock version 2.1.0
addfile ./tests/output/Hash.html hunk ./tests/output/Hash.html 1 + + +Hash
ContentsIndex
Hash
Contents
The HashTable type +
Operations on HashTables +
The Hash class +
Description
Implementation of fixed-size hash tables, with a type + class for constructing hash values for structured types. +
Synopsis
data HashTable key val
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
insert :: (Eq key, Hash key) => key -> val -> IO ()
lookup :: Hash key => key -> IO (Maybe val)
class Hash a where
hash :: a -> Int
The HashTable type +
data HashTable key val
A hash table with keys of type key and values of type val. + The type key should be an instance of Eq. +
Operations on HashTables +
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
Builds a new hash table with a given size +
insert :: (Eq key, Hash key) => key -> val -> IO ()
Inserts a new element into the hash table +
lookup :: Hash key => key -> IO (Maybe val)
Looks up a key in the hash table, returns Just val if the key + was found, or Nothing otherwise. +
The Hash class +
class Hash a where
A class of types which can be hashed. +
Methods
hash :: a -> Int
hashes the value of type a into an Int +
Produced by Haddock version 2.1.0
addfile ./tests/output/Hash.html.ref hunk ./tests/output/Hash.html.ref 1 + + +Hash
ContentsIndex
Hash
Contents
The HashTable type +
Operations on HashTables +
The Hash class +
Description
Implementation of fixed-size hash tables, with a type + class for constructing hash values for structured types. +
Synopsis
data HashTable key val
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
insert :: (Eq key, Hash key) => key -> val -> IO ()
lookup :: Hash key => key -> IO (Maybe val)
class Hash a where
hash :: a -> Int
The HashTable type +
data HashTable key val
A hash table with keys of type key and values of type val. + The type key should be an instance of Eq. +
Operations on HashTables +
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
Builds a new hash table with a given size +
insert :: (Eq key, Hash key) => key -> val -> IO ()
Inserts a new element into the hash table +
lookup :: Hash key => key -> IO (Maybe val)
Looks up a key in the hash table, returns Just val if the key + was found, or Nothing otherwise. +
The Hash class +
class Hash a where
A class of types which can be hashed. +
Methods
hash :: a -> Int
hashes the value of type a into an Int +
Produced by Haddock version 2.1.0
addfile ./tests/output/Hidden.html.ref hunk ./tests/output/Hidden.html.ref 1 + + +Hidden
ContentsIndex
Hidden
Documentation
hidden :: Int -> Int
Produced by Haddock version 2.0.0.0
addfile ./tests/output/NoLayout.html hunk ./tests/output/NoLayout.html 1 + + +NoLayout
ContentsIndex
NoLayout
Synopsis
g :: Int
Documentation
g :: Int
the class C +
Produced by Haddock version 2.1.0
addfile ./tests/output/NoLayout.html.ref hunk ./tests/output/NoLayout.html.ref 1 + + +NoLayout
ContentsIndex
NoLayout
Synopsis
g :: Int
Documentation
g :: Int
the class C +
Produced by Haddock version 2.1.0
addfile ./tests/output/Test.html hunk ./tests/output/Test.html 1 + + +Test
ContentsIndex
Test
Portabilityportable
Stabilityprovisional
Maintainerlibraries@haskell.org
Contents
Type declarations +
Data types +
Records +
Class declarations +
Function types +
Auxiliary stuff +
A hidden module +
A visible module +
Existential / Universal types +
Type signatures with argument docs +
A section +
A subsection +
Description
This module illustrates & tests most of the features of Haddock. + Testing references from the description: T, f, g, visible. +
Synopsis
data T a b
= A Int (Maybe Float)
| B (T a b, T Int Float)
data T2 a b
data T3 a b
= A1 a
| B1 b
data T4 a b
= A2 a
| B2 b
data T5 a b
= A3 a
| B3 b
data T6
= A4
| B4
| C4
newtype N1 a = N1 a
newtype N2 a b = N2 {
n :: a b
}
newtype N3 a b = N3 {
n3 :: a b
}
data N4 a b
newtype N5 a b = N5 {
n5 :: a b
}
newtype N6 a b = N6 {
n6 :: a b
}
newtype N7 a b = N7 {
n7 :: a b
}
data R
= C1 {
p :: Int
q :: forall a. a -> a
r :: Int
s :: Int
}
| C2 {
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
}
data R1 = C3 {
s1 :: Int
s2 :: Int
s3 :: Int
}
p :: R -> Int
q :: R -> forall a. a -> a
u :: R -> Int
class D a => C a where
a :: IO a
b :: [a]
class D a where
d :: T a b
e :: (a, a)
class E a
class F a where
ff :: a
a :: C a => IO a
f :: C a => a -> Int
g :: Int -> IO CInt
hidden :: Int -> Int
module Visible
data Ex a
= forall b . C b => Ex1 b
| forall b . Ex2 b
| forall b . C a => Ex3 b
| Ex4 (forall a. a -> a)
k :: T () () -> T2 Int Int -> T3 Bool Bool -> T4 Float Float -> T5 () () -> IO ()
l :: (Int, Int, Float) -> Int
m :: R -> N1 () -> IO Int
o :: Float -> IO Float
f' :: Int
Type declarations +
Data types +
data T a b
This comment applies to the following declaration + and it continues until the next non-comment line +
Constructors
A Int (Maybe Float)This comment describes the A constructor +
B (T a b, T Int Float)This comment describes the B constructor +
data T2 a b
An abstract data declaration +
data T3 a b
A data declaration with no documentation annotations on the constructors +
Constructors
A1 a
B1 b
data T4 a b
Constructors
A2 a
B2 b
data T5 a b
Constructors
A3 adocuments A3 +
B3 bdocuments B3 +
data T6
Testing alternative comment styles +
Constructors
A4This is the doc for A4 +
B4This is the doc for B4 +
C4This is the doc for C4 +
newtype N1 a
A newtype +
Constructors
N1 a
newtype N2 a b
A newtype with a fieldname +
Constructors
N2
n :: a b
newtype N3 a b
A newtype with a fieldname, documentation on the field +
Constructors
N3
n3 :: a bthis is the n3 field +
data N4 a b
An abstract newtype - we show this one as data rather than newtype because + the difference isn't visible to the programmer for an abstract type. +
newtype N5 a b
Constructors
N5
n5 :: a bno docs on the datatype or the constructor +
newtype N6 a b
Constructors
N6docs on the constructor only +
n6 :: a b
newtype N7 a b
docs on the newtype and the constructor +
Constructors
N7The N7 constructor +
n7 :: a b
Records +
data R
This is the documentation for the R record, which has four fields, + p, q, r, and s. +
Constructors
C1This is the C1 record constructor, with the following fields: +
p :: IntThis comment applies to the p field +
q :: forall a. a -> aThis comment applies to the q field +
r :: IntThis comment applies to both r and s +
s :: IntThis comment applies to both r and s +
C2This is the C2 record constructor, also with some fields: +
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
data R1
Testing different record commenting styles +
Constructors
C3This is the C3 record constructor +
s1 :: IntThe s1 record selector +
s2 :: IntThe s2 record selector +
s3 :: IntThe s3 record selector +
test that we can export record selectors on their own: +
p :: R -> Int
This comment applies to the p field +
q :: R -> forall a. a -> a
This comment applies to the q field +
u :: R -> Int
Class declarations +
class D a => C a where
This comment applies to the previous declaration (the C class) +
Methods
a :: IO a
this is a description of the a method +
b :: [a]
this is a description of the b method +
class D a where
This is a class declaration with no separate docs for the methods +
Methods
d :: T a b
e :: (a, a)
class E a
This is a class declaration with no methods (or no methods exported) +
class F a where
Methods
ff :: a
Test that we can export a class method on its own: +
a :: C a => IO a
this is a description of the a method +
Function types +
f :: C a => a -> Int

In a comment string we can refer to identifiers in scope with +single quotes like this: T, and we can refer to modules by +using double quotes: Foo. We can add emphasis like this. +

  • This is a bulleted list +
  • This is the next item (different kind of bullet) +
  1. This is an ordered list +

2. This is the next item (different kind of bullet) +

+     This is a block of code, which can include other markup: R
+     formatting
+               is
+                 significant
+
 this is another block of code
+

We can also include URLs in documentation: http://www.haskell.org/. +

g :: Int -> IO CInt
we can export foreign declarations too +
Auxiliary stuff +

This is some documentation that is attached to a name ($aux1) + rather than a source declaration. The documentation may be + referred to in the export list using its name. +

 code block in named doc
This is some documentation that is attached to a name ($aux2) +
 code block on its own in named doc
 code block on its own in named doc (after newline)

a nested, named doc comment +

with a paragraph, +

 and a code block
test
+test1
+
 test2
+  test3
+
+test1
+test2
+
test3
+test4
+
+test1
+test2
+
test3
+test4
+
test3
+test4
+
+test1
+test2
+

aux11: +

test3
+test4
+
+test1
+test2
+
 foo
+
 bar
+

This is some inline documentation in the export list +

 a code block using bird-tracks
+ each line must begin with > (which isn't significant unless it
+ is at the beginning of the line).
+
A hidden module +
hidden :: Int -> Int
A visible module +
module Visible
nested-style doc comments +
Existential / Universal types +
data Ex a
A data-type using existential/universal types +
Constructors
forall b . C b => Ex1 b
forall b . Ex2 b
forall b . C a => Ex3 b
Ex4 (forall a. a -> a)
Type signatures with argument docs +
k
:: T () ()This argument has type T +
-> T2 Int IntThis argument has type 'T2 Int Int' +
-> T3 Bool Bool -> T4 Float FloatThis argument has type T3 Bool Bool -> T4 Float Float +
-> T5 () ()This argument has a very long description that should + hopefully cause some wrapping to happen when it is finally + rendered by Haddock in the generated HTML page. +
-> IO ()This is the result type +
This is a function with documentation for each argument +
l
:: (Int, Int, Float)takes a triple +
-> Intreturns an Int +
m
:: R
-> N1 ()one of the arguments +
-> IO Intand the return value +
This function has some arg docs +
o
:: FloatThe input float +
-> IO FloatThe output float +
A foreign import with argument docs +
A section +
A subsection +
 a literal line
+

$ a non literal line $ +

f' :: Int
a function with a prime can be referred to as f' + but f' doesn't get link'd 'f\'' +
Produced by Haddock version 2.1.0
addfile ./tests/output/Test.html.ref hunk ./tests/output/Test.html.ref 1 + + +Test
ContentsIndex
Test
Portabilityportable
Stabilityprovisional
Maintainerlibraries@haskell.org
Contents
Type declarations +
Data types +
Records +
Class declarations +
Function types +
Auxiliary stuff +
A hidden module +
A visible module +
Existential / Universal types +
Type signatures with argument docs +
A section +
A subsection +
Description
This module illustrates & tests most of the features of Haddock. + Testing references from the description: T, f, g, visible. +
Synopsis
data T a b
= A Int (Maybe Float)
| B (T a b, T Int Float)
data T2 a b
data T3 a b
= A1 a
| B1 b
data T4 a b
= A2 a
| B2 b
data T5 a b
= A3 a
| B3 b
data T6
= A4
| B4
| C4
newtype N1 a = N1 a
newtype N2 a b = N2 {
n :: a b
}
newtype N3 a b = N3 {
n3 :: a b
}
data N4 a b
newtype N5 a b = N5 {
n5 :: a b
}
newtype N6 a b = N6 {
n6 :: a b
}
newtype N7 a b = N7 {
n7 :: a b
}
data R
= C1 {
p :: Int
q :: forall a. a -> a
r :: Int
s :: Int
}
| C2 {
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
}
data R1 = C3 {
s1 :: Int
s2 :: Int
s3 :: Int
}
p :: R -> Int
q :: R -> forall a. a -> a
u :: R -> Int
class D a => C a where
a :: IO a
b :: [a]
class D a where
d :: T a b
e :: (a, a)
class E a
class F a where
ff :: a
a :: C a => IO a
f :: C a => a -> Int
g :: Int -> IO CInt
hidden :: Int -> Int
module Visible
data Ex a
= forall b . C b => Ex1 b
| forall b . Ex2 b
| forall b . C a => Ex3 b
| Ex4 (forall a. a -> a)
k :: T () () -> T2 Int Int -> T3 Bool Bool -> T4 Float Float -> T5 () () -> IO ()
l :: (Int, Int, Float) -> Int
m :: R -> N1 () -> IO Int
o :: Float -> IO Float
f' :: Int
Type declarations +
Data types +
data T a b
This comment applies to the following declaration + and it continues until the next non-comment line +
Constructors
A Int (Maybe Float)This comment describes the A constructor +
B (T a b, T Int Float)This comment describes the B constructor +
data T2 a b
An abstract data declaration +
data T3 a b
A data declaration with no documentation annotations on the constructors +
Constructors
A1 a
B1 b
data T4 a b
Constructors
A2 a
B2 b
data T5 a b
Constructors
A3 adocuments A3 +
B3 bdocuments B3 +
data T6
Testing alternative comment styles +
Constructors
A4This is the doc for A4 +
B4This is the doc for B4 +
C4This is the doc for C4 +
newtype N1 a
A newtype +
Constructors
N1 a
newtype N2 a b
A newtype with a fieldname +
Constructors
N2
n :: a b
newtype N3 a b
A newtype with a fieldname, documentation on the field +
Constructors
N3
n3 :: a bthis is the n3 field +
data N4 a b
An abstract newtype - we show this one as data rather than newtype because + the difference isn't visible to the programmer for an abstract type. +
newtype N5 a b
Constructors
N5
n5 :: a bno docs on the datatype or the constructor +
newtype N6 a b
Constructors
N6docs on the constructor only +
n6 :: a b
newtype N7 a b
docs on the newtype and the constructor +
Constructors
N7The N7 constructor +
n7 :: a b
Records +
data R
This is the documentation for the R record, which has four fields, + p, q, r, and s. +
Constructors
C1This is the C1 record constructor, with the following fields: +
p :: IntThis comment applies to the p field +
q :: forall a. a -> aThis comment applies to the q field +
r :: IntThis comment applies to both r and s +
s :: IntThis comment applies to both r and s +
C2This is the C2 record constructor, also with some fields: +
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
data R1
Testing different record commenting styles +
Constructors
C3This is the C3 record constructor +
s1 :: IntThe s1 record selector +
s2 :: IntThe s2 record selector +
s3 :: IntThe s3 record selector +
test that we can export record selectors on their own: +
p :: R -> Int
This comment applies to the p field +
q :: R -> forall a. a -> a
This comment applies to the q field +
u :: R -> Int
Class declarations +
class D a => C a where
This comment applies to the previous declaration (the C class) +
Methods
a :: IO a
this is a description of the a method +
b :: [a]
this is a description of the b method +
class D a where
This is a class declaration with no separate docs for the methods +
Methods
d :: T a b
e :: (a, a)
class E a
This is a class declaration with no methods (or no methods exported) +
class F a where
Methods
ff :: a
Test that we can export a class method on its own: +
a :: C a => IO a
this is a description of the a method +
Function types +
f :: C a => a -> Int

In a comment string we can refer to identifiers in scope with +single quotes like this: T, and we can refer to modules by +using double quotes: Foo. We can add emphasis like this. +

  • This is a bulleted list +
  • This is the next item (different kind of bullet) +
  1. This is an ordered list +

2. This is the next item (different kind of bullet) +

+     This is a block of code, which can include other markup: R
+     formatting
+               is
+                 significant
+
 this is another block of code
+

We can also include URLs in documentation: http://www.haskell.org/. +

g :: Int -> IO CInt
we can export foreign declarations too +
Auxiliary stuff +

This is some documentation that is attached to a name ($aux1) + rather than a source declaration. The documentation may be + referred to in the export list using its name. +

 code block in named doc
This is some documentation that is attached to a name ($aux2) +
 code block on its own in named doc
 code block on its own in named doc (after newline)

a nested, named doc comment +

with a paragraph, +

 and a code block
test
+test1
+
 test2
+  test3
+
+test1
+test2
+
test3
+test4
+
+test1
+test2
+
test3
+test4
+
test3
+test4
+
+test1
+test2
+

aux11: +

test3
+test4
+
+test1
+test2
+
 foo
+
 bar
+

This is some inline documentation in the export list +

 a code block using bird-tracks
+ each line must begin with > (which isn't significant unless it
+ is at the beginning of the line).
+
A hidden module +
hidden :: Int -> Int
A visible module +
module Visible
nested-style doc comments +
Existential / Universal types +
data Ex a
A data-type using existential/universal types +
Constructors
forall b . C b => Ex1 b
forall b . Ex2 b
forall b . C a => Ex3 b
Ex4 (forall a. a -> a)
Type signatures with argument docs +
k
:: T () ()This argument has type T +
-> T2 Int IntThis argument has type 'T2 Int Int' +
-> T3 Bool Bool -> T4 Float FloatThis argument has type T3 Bool Bool -> T4 Float Float +
-> T5 () ()This argument has a very long description that should + hopefully cause some wrapping to happen when it is finally + rendered by Haddock in the generated HTML page. +
-> IO ()This is the result type +
This is a function with documentation for each argument +
l
:: (Int, Int, Float)takes a triple +
-> Intreturns an Int +
m
:: R
-> N1 ()one of the arguments +
-> IO Intand the return value +
This function has some arg docs +
o
:: FloatThe input float +
-> IO FloatThe output float +
A foreign import with argument docs +
A section +
A subsection +
 a literal line
+

$ a non literal line $ +

f' :: Int
a function with a prime can be referred to as f' + but f' doesn't get link'd 'f\'' +
Produced by Haddock version 2.1.0
addfile ./tests/output/TypeOperators.html hunk ./tests/output/TypeOperators.html 1 + + +TypeOperators
ContentsIndex
TypeOperators
Contents
stuff +
Synopsis
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a = O {
unO :: g (f a)
}
biO :: (g `O` f) a
newtype Flip (~>) b a = Flip {
unFlip :: a ~> b
}
stuff +
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a
Constructors
O
unO :: g (f a)
biO :: (g `O` f) a
newtype Flip (~>) b a
Constructors
Flip
unFlip :: a ~> b
Produced by Haddock version 2.1.0
addfile ./tests/output/TypeOperators.html.ref hunk ./tests/output/TypeOperators.html.ref 1 + + +TypeOperators
ContentsIndex
TypeOperators
Contents
stuff +
Synopsis
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a = O {
unO :: g (f a)
}
biO :: (g `O` f) a
newtype Flip (~>) b a = Flip {
unFlip :: a ~> b
}
stuff +
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a
Constructors
O
unO :: g (f a)
biO :: (g `O` f) a
newtype Flip (~>) b a
Constructors
Flip
unFlip :: a ~> b
Produced by Haddock version 2.1.0
addfile ./tests/output/Visible.html hunk ./tests/output/Visible.html 1 + + +Visible
ContentsIndex
Visible
Documentation
visible :: Int -> Int
Produced by Haddock version 2.1.0
addfile ./tests/output/Visible.html.ref hunk ./tests/output/Visible.html.ref 1 + + +Visible
ContentsIndex
Visible
Documentation
visible :: Int -> Int
Produced by Haddock version 2.1.0
addfile ./tests/output/doc-index.html hunk ./tests/output/doc-index.html 1 + + + (Index)
ContentsIndex
Search:
--->Bug8
-->Bug8
:+:TypeOperators
:-:TypeOperators
A
1 (Type/Class)Bugs
2 (Data Constructor)Bugs
3 (Type/Class)Bug6
4 (Data Constructor)Bug6
5 (Data Constructor)Test
6 (Type/Class)B, A
7 (Data Constructor)B, A
aTest
A1Test
A2Test
A3Test
A4Test
B
1 (Type/Class)Bug6
2 (Data Constructor)Bug6
3 (Data Constructor)Test
b
1 (Function)Bug6
2 (Function)Test
B1Test
B2Test
B3Test
B4Test
BarBug7
biOTypeOperators
C
1 (Type/Class)Bug6
2 (Data Constructor)Bug6
3 (Type/Class)Test
C1Test
c1Bug6
C2Test
c2Bug6
C3Test
C4Test
D
1 (Type/Class)Bug6
2 (Data Constructor)Bug6
3 (Type/Class)Test
dTest
d1Bug6
E
1 (Type/Class)Bug6
2 (Data Constructor)Bug6
3 (Type/Class)Test
eTest
ExTest
Ex1Test
Ex2Test
Ex3Test
Ex4Test
FTest
fTest
f'Test
ffTest
Flip
1 (Type/Class)TypeOperators
2 (Data Constructor)TypeOperators
Foo
1 (Type/Class)Bug7
2 (Data Constructor)Bug7
foo
1 (Function)Bug4
2 (Function)Bug3
g
1 (Function)NoLayout
2 (Function)Test
HashHash
hashHash
HashTableHash
hiddenTest
insertHash
kTest
lTest
lookupHash
mTest
mainBug8
nTest
N1
1 (Type/Class)Test
2 (Data Constructor)Test
N2
1 (Type/Class)Test
2 (Data Constructor)Test
N3
1 (Type/Class)Test
2 (Data Constructor)Test
n3Test
N4Test
N5
1 (Type/Class)Test
2 (Data Constructor)Test
n5Test
N6
1 (Type/Class)Test
2 (Data Constructor)Test
n6Test
N7
1 (Type/Class)Test
2 (Data Constructor)Test
n7Test
newHash
O
1 (Type/Class)TypeOperators
2 (Data Constructor)TypeOperators
oTest
OpTypeOperators
pTest
qTest
RTest
rTest
R1Test
s
1 (Function)Bug8
2 (Function)Test
s1Test
s2Test
s3Test
T
1 (Type/Class)Bug1
2 (Data Constructor)Bug1
3 (Type/Class)Test
t
1 (Function)Bug8
2 (Function)Test
T2Test
T3Test
T4Test
T5Test
T6Test
TFreeBug8
TypBug8
TypeBug8
uTest
unFlipTypeOperators
unOTypeOperators
vTest
visibleVisible, Test
xBug2
addfile ./tests/output/index.html hunk ./tests/output/index.html 1 + + +
ContentsIndex
Modules
A
B
Bug1
Bug2
Bug3
Bug4
Bug6
Bug7
Bug8
Bugs
Hash
NoLayout
Test
TypeOperators
Visible
Produced by Haddock version 2.1.0
hunk ./tests/runtests.hs 11 + hunk ./tests/runtests.hs 17 - walkDirs libdir "." + test libdir hunk ./tests/runtests.hs 25 - -allModules dir = do - contents <- getDirectoryContents dir - return $ filter ((==) ".hs" . takeExtension) contents - - hunk ./tests/runtests.hs 28 - let reffile = dropExtension mod ++ ".html.ref" + let reffile = "tests" dropExtension mod ++ ".html.ref" hunk ./tests/runtests.hs 32 - copyFile reffile ("output" reffile) + copyFile reffile ("output" takeFileName reffile) hunk ./tests/runtests.hs 46 -walkDirs libdir basedir = do - contents <- getDirectoryContents basedir - dirs <- filterM doesDirectoryExist . - map (basedir ) . - filter (`notElem` [".", "..", "output"]) $ contents - mapM_ (testDir libdir) dirs - - -testDir libdir dir = do - mods <- allModules dir - let mods' = map (dir ) mods - let outdir = "output" dir - createDirectoryIfMissing True outdir - code <- system $ printf "../dist/build/haddock/haddock -B %s -w -o %s -h --optghc=-fglasgow-exts --optghc=-w %s" libdir outdir (unwords mods') +test libdir = do + contents <- getDirectoryContents "tests" + let mods = filter ((==) ".hs" . takeExtension) contents + let outdir = "output" + let mods' = map ("tests" ) mods + code <- system $ printf "haddock -B %s -w -o %s -h --optghc=-fglasgow-exts --optghc=-w %s" libdir outdir (unwords mods') hunk ./tests/runtests.hs 53 - check mods' - walkDirs libdir dir + check mods addfile ./tests/tests/A.hs hunk ./tests/tests/A.hs 1 +module A where +data A = A addfile ./tests/tests/A.html.ref hunk ./tests/tests/A.html.ref 1 + + +A
ContentsIndex
A
Documentation
data A
Constructors
A
Produced by Haddock version 2.1.0
addfile ./tests/tests/B.hs hunk ./tests/tests/B.hs 1 +module B ( module A ) where +import A addfile ./tests/tests/B.html.ref hunk ./tests/tests/B.html.ref 1 + + +B
ContentsIndex
B
Documentation
module A
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug1.hs hunk ./tests/tests/Bug1.hs 1 +module Bug1 where + +-- | We should have different anchors for constructors and types\/classes. This +-- hyperlink should point to the type constructor by default: 'T'. +data T = T + addfile ./tests/tests/Bug1.html.ref hunk ./tests/tests/Bug1.html.ref 1 + + +Bug1
ContentsIndex
Bug1
Synopsis
data T = T
Documentation
data T
We should have different anchors for constructors and types/classes. This + hyperlink should point to the type constructor by default: T. +
Constructors
T
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug2.hs hunk ./tests/tests/Bug2.hs 1 +module Bug2 ( x ) where +import B +x :: A +x = A addfile ./tests/tests/Bug2.html.ref hunk ./tests/tests/Bug2.html.ref 1 + + +Bug2
ContentsIndex
Bug2
Documentation
x :: A
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug3.hs hunk ./tests/tests/Bug3.hs 1 +module Bug3 where + +-- | /multi-line +-- emphasis/ +foo :: Int +foo = undefined addfile ./tests/tests/Bug3.html.ref hunk ./tests/tests/Bug3.html.ref 1 + + +Bug3
ContentsIndex
Bug3
Synopsis
foo :: Int
Documentation
foo :: Int
/multi-line + emphasis/ +
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug4.hs hunk ./tests/tests/Bug4.hs 1 +module Bug4 where +-- | don't use apostrophe's in the wrong place's +foo :: Int +foo = undefined + addfile ./tests/tests/Bug4.html.ref hunk ./tests/tests/Bug4.html.ref 1 + + +Bug4
ContentsIndex
Bug4
Synopsis
foo :: Int
Documentation
foo :: Int
don't use apostrophe's in the wrong place's +
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug6.hs hunk ./tests/tests/Bug6.hs 1 +-- | Exporting records. +module Bug6( A(A), B(B), b, C(C,c1,c2), D(D,d1), E(E) ) where + +-- | +-- This record is exported without its field +data A = A { a :: Int } + +-- | +-- .. with its field, but the field is named separately in the export list +-- (should still be visible as a field name) +data B = B { b :: Int } + +-- | +-- .. with fields names as subordinate names in the export +data C = C { c1 :: Int, c2 :: Int } + +-- | +-- .. with only some of the fields exported (we can't handle this one - +-- how do we render the declaration?) +data D = D { d1 :: Int, d2 :: Int } + +-- | a newtype with a field +newtype E = E { e :: Int } addfile ./tests/tests/Bug6.html.ref hunk ./tests/tests/Bug6.html.ref 1 + + +Bug6
ContentsIndex
Bug6
Description
Exporting records. +
Synopsis
data A = A Int
data B = B {
b :: Int
}
b :: B -> Int
data C = C {
c1 :: Int
c2 :: Int
}
data D = D Int Int
newtype E = E Int
Documentation
data A
This record is exported without its field +
Constructors
A Int
data B
.. with its field, but the field is named separately in the export list + (should still be visible as a field name) +
Constructors
B
b :: Int
b :: B -> Int
data C
.. with fields names as subordinate names in the export +
Constructors
C
c1 :: Int
c2 :: Int
data D
.. with only some of the fields exported (we can't handle this one - + how do we render the declaration?) +
Constructors
D Int Int
newtype E
a newtype with a field +
Constructors
E Int
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug7.hs hunk ./tests/tests/Bug7.hs 1 +-- | This module caused a duplicate instance in the documentation for the Foo +-- type. +module Bug7 where + +-- | The Foo datatype +data Foo = Foo + +-- | The Bar class +class Bar x y + +-- | Just one instance +instance Bar Foo Foo addfile ./tests/tests/Bug7.html.ref hunk ./tests/tests/Bug7.html.ref 1 + + +Bug7
ContentsIndex
Bug7
Description
This module caused a duplicate instance in the documentation for the Foo + type. +
Synopsis
data Foo = Foo
class Bar x y
Documentation
data Foo
The Foo datatype +
Constructors
Foo
show/hide Instances
class Bar x y
The Bar class +
show/hide Instances
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bug8.hs hunk ./tests/tests/Bug8.hs 1 +{- Note that declarations without type signatures are not included in the + documentation. They could be, but that's a missing feature. -} + +module Bug8 where + +infix --> +infix ---> + +data Typ = Type (String,[Typ]) + | TFree (String, [String]) + +x --> y = Type("fun",[s,t]) +(--->) = flip $ foldr (-->) + +s = undefined +t = undefined +main = undefined addfile ./tests/tests/Bug8.html.ref hunk ./tests/tests/Bug8.html.ref 1 + + +Bug8
ContentsIndex
Bug8
Documentation
data Typ
Constructors
Type (String, [Typ])
TFree (String, [String])
Produced by Haddock version 2.1.0
addfile ./tests/tests/Bugs.hs hunk ./tests/tests/Bugs.hs 1 +module Bugs where + +data A a = A a (a -> Int) addfile ./tests/tests/Bugs.html.ref hunk ./tests/tests/Bugs.html.ref 1 + + +Bugs
ContentsIndex
Bugs
Documentation
data A a
Constructors
A a (a -> Int)
Produced by Haddock version 2.1.0
addfile ./tests/tests/Hash.hs hunk ./tests/tests/Hash.hs 1 +{- | + Implementation of fixed-size hash tables, with a type + class for constructing hash values for structured types. +-} +module Hash ( + -- * The @HashTable@ type + HashTable, + + -- ** Operations on @HashTable@s + new, insert, lookup, + + -- * The @Hash@ class + Hash(..), + ) where + +import Array +import Prelude hiding (lookup) + +-- | A hash table with keys of type @key@ and values of type @val@. +-- The type @key@ should be an instance of 'Eq'. +data HashTable key val = HashTable Int (Array Int [(key,val)]) + +-- | Builds a new hash table with a given size +new :: (Eq key, Hash key) => Int -> IO (HashTable key val) +new = undefined + +-- | Inserts a new element into the hash table +insert :: (Eq key, Hash key) => key -> val -> IO () +insert = undefined + +-- | Looks up a key in the hash table, returns @'Just' val@ if the key +-- was found, or 'Nothing' otherwise. +lookup :: Hash key => key -> IO (Maybe val) +lookup = undefined + +-- | A class of types which can be hashed. +class Hash a where + -- | hashes the value of type @a@ into an 'Int' + hash :: a -> Int + +instance Hash Int where + hash = id + +instance Hash Float where + hash = trunc + +instance (Hash a, Hash b) => Hash (a,b) where + hash (a,b) = hash a `xor` hash b + +trunc = undefined +xor = undefined addfile ./tests/tests/Hash.html.ref hunk ./tests/tests/Hash.html.ref 1 + + +Hash
ContentsIndex
Hash
Contents
The HashTable type +
Operations on HashTables +
The Hash class +
Description
Implementation of fixed-size hash tables, with a type + class for constructing hash values for structured types. +
Synopsis
data HashTable key val
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
insert :: (Eq key, Hash key) => key -> val -> IO ()
lookup :: Hash key => key -> IO (Maybe val)
class Hash a where
hash :: a -> Int
The HashTable type +
data HashTable key val
A hash table with keys of type key and values of type val. + The type key should be an instance of Eq. +
Operations on HashTables +
new :: (Eq key, Hash key) => Int -> IO (HashTable key val)
Builds a new hash table with a given size +
insert :: (Eq key, Hash key) => key -> val -> IO ()
Inserts a new element into the hash table +
lookup :: Hash key => key -> IO (Maybe val)
Looks up a key in the hash table, returns Just val if the key + was found, or Nothing otherwise. +
The Hash class +
class Hash a where
A class of types which can be hashed. +
Methods
hash :: a -> Int
hashes the value of type a into an Int +
Produced by Haddock version 2.1.0
addfile ./tests/tests/Hidden.hs hunk ./tests/tests/Hidden.hs 1 +{-# OPTIONS_HADDOCK hide #-} +module Hidden where +hidden :: Int -> Int +hidden a = a addfile ./tests/tests/NoLayout.hs hunk ./tests/tests/NoLayout.hs 1 + +-- Haddock comments are parsed as separate declarations so we +-- need to insert a ';' when using them with explicit layout. +-- This should probably be changed. + +module NoLayout where { + -- | the class 'C' + ; + g :: Int; + g = undefined + } + addfile ./tests/tests/NoLayout.html.ref hunk ./tests/tests/NoLayout.html.ref 1 + + +NoLayout
ContentsIndex
NoLayout
Synopsis
g :: Int
Documentation
g :: Int
the class C +
Produced by Haddock version 2.1.0
addfile ./tests/tests/Test.hs hunk ./tests/tests/Test.hs 1 +----------------------------------------------------------------------------- +-- | +-- Module : Test +-- Copyright : (c) Simon Marlow 2002 +-- License : BSD-style +-- +-- Maintainer : libraries@haskell.org +-- Stability : provisional +-- Portability : portable +-- +-- This module illustrates & tests most of the features of Haddock. +-- Testing references from the description: 'T', 'f', 'g', 'Visible.visible'. +-- +----------------------------------------------------------------------------- + +-- This is plain comment, ignored by Haddock. + +module Test ( + + -- Section headings are introduced with '-- *': + -- * Type declarations + + -- Subsection headings are introduced with '-- **' and so on. + -- ** Data types + T(..), T2, T3(..), T4(..), T5(..), T6(..), + N1(..), N2(..), N3(..), N4, N5(..), N6(..), N7(..), + + -- ** Records + R(..), R1(..), + + -- | test that we can export record selectors on their own: + p, q, u, + + -- * Class declarations + C(a,b), D(..), E, F(..), + + -- | Test that we can export a class method on its own: + a, + + -- * Function types + f, g, + + -- * Auxiliary stuff + + -- $aux1 + + -- $aux2 + + -- $aux3 + + -- $aux4 + + -- $aux5 + + -- $aux6 + + -- $aux7 + + -- $aux8 + + -- $aux9 + + -- $aux10 + + -- $aux11 + + -- $aux12 + + -- | This is some inline documentation in the export list + -- + -- > a code block using bird-tracks + -- > each line must begin with > (which isn't significant unless it + -- > is at the beginning of the line). + + -- * A hidden module + module Hidden, + + -- * A visible module + module Visible, + + {-| nested-style doc comments -} + + -- * Existential \/ Universal types + Ex(..), + + -- * Type signatures with argument docs + k, l, m, o, + + -- * A section + -- and without an intervening comma: + -- ** A subsection + +{-| + > a literal line + + $ a non /literal/ line $ +-} + + f' + ) where + +import Hidden +import Visible +import Data.Maybe + +bla = Nothing + +-- | This comment applies to the /following/ declaration +-- and it continues until the next non-comment line +data T a b + = A Int (Maybe Float) -- ^ This comment describes the 'A' constructor + | -- | This comment describes the 'B' constructor + B (T a b, T Int Float) -- ^ + +-- | An abstract data declaration +data T2 a b = T2 a b + +-- | A data declaration with no documentation annotations on the constructors +data T3 a b = A1 a | B1 b + +-- A data declaration with no documentation annotations at all +data T4 a b = A2 a | B2 b + +-- A data declaration documentation on the constructors only +data T5 a b + = A3 a -- ^ documents 'A3' + | B3 b -- ^ documents 'B3' + +-- | Testing alternative comment styles +data T6 + -- | This is the doc for 'A4' + = A4 + | B4 + | -- ^ This is the doc for 'B4' + + -- | This is the doc for 'C4' + C4 + +-- | A newtype +newtype N1 a = N1 a + +-- | A newtype with a fieldname +newtype N2 a b = N2 {n :: a b} + +-- | A newtype with a fieldname, documentation on the field +newtype N3 a b = N3 {n3 :: a b -- ^ this is the 'n3' field + } + +-- | An abstract newtype - we show this one as data rather than newtype because +-- the difference isn\'t visible to the programmer for an abstract type. +newtype N4 a b = N4 a + +newtype N5 a b = N5 {n5 :: a b -- ^ no docs on the datatype or the constructor + } + +newtype N6 a b = N6 {n6 :: a b + } + -- ^ docs on the constructor only + +-- | docs on the newtype and the constructor +newtype N7 a b = N7 {n7 :: a b + } + -- ^ The 'N7' constructor + + +class (D a) => C a where + -- |this is a description of the 'a' method + a :: IO a + b :: [a] + -- ^ this is a description of the 'b' method + c :: a -- c is hidden in the export list + +-- ^ This comment applies to the /previous/ declaration (the 'C' class) + +class D a where + d :: T a b + e :: (a,a) +-- ^ This is a class declaration with no separate docs for the methods + +instance D Int where + d = undefined + e = undefined + +-- instance with a qualified class name +instance Test.D Float where + d = undefined + e = undefined + +class E a where + ee :: a +-- ^ This is a class declaration with no methods (or no methods exported) + +-- This is a class declaration with no documentation at all +class F a where + ff :: a + +-- | This is the documentation for the 'R' record, which has four fields, +-- 'p', 'q', 'r', and 's'. +data R = + -- | This is the 'C1' record constructor, with the following fields: + C1 { p :: Int -- ^ This comment applies to the 'p' field + , q :: forall a . a->a -- ^ This comment applies to the 'q' field + , -- | This comment applies to both 'r' and 's' + r,s :: Int + } + | C2 { t :: T1 -> (T2 Int Int)-> (T3 Bool Bool) -> (T4 Float Float) -> T5 () (), + u,v :: Int + } + -- ^ This is the 'C2' record constructor, also with some fields: + +-- | Testing different record commenting styles +data R1 + -- | This is the 'C3' record constructor + = C3 { + -- | The 's1' record selector + s1 :: Int + -- | The 's2' record selector + , s2 :: Int + , s3 :: Int -- NOTE: In the original examples/Test.hs in Haddock, there is an extra "," here. + -- Since GHC doesn't allow that, I have removed it in this file. + -- ^ The 's3' record selector + } + +-- These section headers are only used when there is no export list to +-- give the structure of the documentation: + +-- * This is a section header (level 1) +-- ** This is a section header (level 2) +-- *** This is a section header (level 3) + +{-| +In a comment string we can refer to identifiers in scope with +single quotes like this: 'T', and we can refer to modules by +using double quotes: "Foo". We can add emphasis /like this/. + + * This is a bulleted list + + - This is the next item (different kind of bullet) + + (1) This is an ordered list + + 2. This is the next item (different kind of bullet) + +@ + This is a block of code, which can include other markup: 'R' + formatting + is + significant +@ + +> this is another block of code + +We can also include URLs in documentation: . +-} + +f :: C a => a -> Int + +-- | we can export foreign declarations too +foreign import ccall g :: Int -> IO CInt + +-- | this doc string has a parse error in it: \' +h :: Int +h = 42 + + +-- $aux1 This is some documentation that is attached to a name ($aux1) +-- rather than a source declaration. The documentation may be +-- referred to in the export list using its name. +-- +-- @ code block in named doc @ + +-- $aux2 This is some documentation that is attached to a name ($aux2) + +-- $aux3 +-- @ code block on its own in named doc @ + +-- $aux4 +-- +-- @ code block on its own in named doc (after newline) @ + +{- $aux5 a nested, named doc comment + + with a paragraph, + + @ and a code block @ +-} + +-- some tests for various arrangements of code blocks: + +{- $aux6 +>test +>test1 + +@ test2 + test3 +@ +-} + +{- $aux7 +@ +test1 +test2 +@ +-} + +{- $aux8 +>test3 +>test4 +-} + +{- $aux9 +@ +test1 +test2 +@ + +>test3 +>test4 +-} + +{- $aux10 +>test3 +>test4 + +@ +test1 +test2 +@ +-} + +-- This one is currently wrong (Haddock 0.4). The @...@ part is +-- interpreted as part of the bird-tracked code block. +{- $aux11 +aux11: + +>test3 +>test4 + +@ +test1 +test2 +@ +-} + +-- $aux12 +-- > foo +-- +-- > bar +-- + +-- | A data-type using existential\/universal types +data Ex a + = forall b . C b => Ex1 b + | forall b . Ex2 b + | forall b . C a => Ex3 b -- NOTE: I have added "forall b" here make GHC accept this file + | Ex4 (forall a . a -> a) + +-- | This is a function with documentation for each argument +k :: T () () -- ^ This argument has type 'T' + -> (T2 Int Int) -- ^ This argument has type 'T2 Int Int' + -> (T3 Bool Bool -> T4 Float Float) -- ^ This argument has type @T3 Bool Bool -> T4 Float Float@ + -> T5 () () -- ^ This argument has a very long description that should + -- hopefully cause some wrapping to happen when it is finally + -- rendered by Haddock in the generated HTML page. + -> IO () -- ^ This is the result type + +-- This function has arg docs but no docs for the function itself +l :: (Int, Int, Float) -- ^ takes a triple + -> Int -- ^ returns an 'Int' + +-- | This function has some arg docs +m :: R + -> N1 () -- ^ one of the arguments + -> IO Int -- ^ and the return value + +-- | This function has some arg docs but not a return value doc + +-- can't use the original name ('n') with GHC +newn :: R -- ^ one of the arguments, an 'R' + -> N1 () -- ^ one of the arguments + -> IO Int +newn = undefined + + +-- | A foreign import with argument docs +foreign import ccall unsafe + o :: Float -- ^ The input float + -> IO Float -- ^ The output float + +-- | We should be able to escape this: \#\#\# + +-- p :: Int +-- can't use the above original definition with GHC +newp :: Int +newp = undefined + +-- | a function with a prime can be referred to as 'f'' +-- but f' doesn't get link'd 'f\'' +f' :: Int + + +-- Add some definitions here so that this file can be compiled with GHC + +data T1 +f = undefined +f' = undefined +type CInt = Int +k = undefined +l = undefined +m = undefined addfile ./tests/tests/Test.html.ref hunk ./tests/tests/Test.html.ref 1 + + +Test
ContentsIndex
Test
Portabilityportable
Stabilityprovisional
Maintainerlibraries@haskell.org
Contents
Type declarations +
Data types +
Records +
Class declarations +
Function types +
Auxiliary stuff +
A hidden module +
A visible module +
Existential / Universal types +
Type signatures with argument docs +
A section +
A subsection +
Description
This module illustrates & tests most of the features of Haddock. + Testing references from the description: T, f, g, visible. +
Synopsis
data T a b
= A Int (Maybe Float)
| B (T a b, T Int Float)
data T2 a b
data T3 a b
= A1 a
| B1 b
data T4 a b
= A2 a
| B2 b
data T5 a b
= A3 a
| B3 b
data T6
= A4
| B4
| C4
newtype N1 a = N1 a
newtype N2 a b = N2 {
n :: a b
}
newtype N3 a b = N3 {
n3 :: a b
}
data N4 a b
newtype N5 a b = N5 {
n5 :: a b
}
newtype N6 a b = N6 {
n6 :: a b
}
newtype N7 a b = N7 {
n7 :: a b
}
data R
= C1 {
p :: Int
q :: forall a. a -> a
r :: Int
s :: Int
}
| C2 {
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
}
data R1 = C3 {
s1 :: Int
s2 :: Int
s3 :: Int
}
p :: R -> Int
q :: R -> forall a. a -> a
u :: R -> Int
class D a => C a where
a :: IO a
b :: [a]
class D a where
d :: T a b
e :: (a, a)
class E a
class F a where
ff :: a
a :: C a => IO a
f :: C a => a -> Int
g :: Int -> IO CInt
hidden :: Int -> Int
module Visible
data Ex a
= forall b . C b => Ex1 b
| forall b . Ex2 b
| forall b . C a => Ex3 b
| Ex4 (forall a. a -> a)
k :: T () () -> T2 Int Int -> T3 Bool Bool -> T4 Float Float -> T5 () () -> IO ()
l :: (Int, Int, Float) -> Int
m :: R -> N1 () -> IO Int
o :: Float -> IO Float
f' :: Int
Type declarations +
Data types +
data T a b
This comment applies to the following declaration + and it continues until the next non-comment line +
Constructors
A Int (Maybe Float)This comment describes the A constructor +
B (T a b, T Int Float)This comment describes the B constructor +
data T2 a b
An abstract data declaration +
data T3 a b
A data declaration with no documentation annotations on the constructors +
Constructors
A1 a
B1 b
data T4 a b
Constructors
A2 a
B2 b
data T5 a b
Constructors
A3 adocuments A3 +
B3 bdocuments B3 +
data T6
Testing alternative comment styles +
Constructors
A4This is the doc for A4 +
B4This is the doc for B4 +
C4This is the doc for C4 +
newtype N1 a
A newtype +
Constructors
N1 a
newtype N2 a b
A newtype with a fieldname +
Constructors
N2
n :: a b
newtype N3 a b
A newtype with a fieldname, documentation on the field +
Constructors
N3
n3 :: a bthis is the n3 field +
data N4 a b
An abstract newtype - we show this one as data rather than newtype because + the difference isn't visible to the programmer for an abstract type. +
newtype N5 a b
Constructors
N5
n5 :: a bno docs on the datatype or the constructor +
newtype N6 a b
Constructors
N6docs on the constructor only +
n6 :: a b
newtype N7 a b
docs on the newtype and the constructor +
Constructors
N7The N7 constructor +
n7 :: a b
Records +
data R
This is the documentation for the R record, which has four fields, + p, q, r, and s. +
Constructors
C1This is the C1 record constructor, with the following fields: +
p :: IntThis comment applies to the p field +
q :: forall a. a -> aThis comment applies to the q field +
r :: IntThis comment applies to both r and s +
s :: IntThis comment applies to both r and s +
C2This is the C2 record constructor, also with some fields: +
t :: T1 -> (T2 Int Int) -> (T3 Bool Bool) -> (T4 Float Float) -> T5 () ()
u :: Int
v :: Int
data R1
Testing different record commenting styles +
Constructors
C3This is the C3 record constructor +
s1 :: IntThe s1 record selector +
s2 :: IntThe s2 record selector +
s3 :: IntThe s3 record selector +
test that we can export record selectors on their own: +
p :: R -> Int
This comment applies to the p field +
q :: R -> forall a. a -> a
This comment applies to the q field +
u :: R -> Int
Class declarations +
class D a => C a where
This comment applies to the previous declaration (the C class) +
Methods
a :: IO a
this is a description of the a method +
b :: [a]
this is a description of the b method +
class D a where
This is a class declaration with no separate docs for the methods +
Methods
d :: T a b
e :: (a, a)
class E a
This is a class declaration with no methods (or no methods exported) +
class F a where
Methods
ff :: a
Test that we can export a class method on its own: +
a :: C a => IO a
this is a description of the a method +
Function types +
f :: C a => a -> Int

In a comment string we can refer to identifiers in scope with +single quotes like this: T, and we can refer to modules by +using double quotes: Foo. We can add emphasis like this. +

  • This is a bulleted list +
  • This is the next item (different kind of bullet) +
  1. This is an ordered list +

2. This is the next item (different kind of bullet) +

+     This is a block of code, which can include other markup: R
+     formatting
+               is
+                 significant
+
 this is another block of code
+

We can also include URLs in documentation: http://www.haskell.org/. +

g :: Int -> IO CInt
we can export foreign declarations too +
Auxiliary stuff +

This is some documentation that is attached to a name ($aux1) + rather than a source declaration. The documentation may be + referred to in the export list using its name. +

 code block in named doc
This is some documentation that is attached to a name ($aux2) +
 code block on its own in named doc
 code block on its own in named doc (after newline)

a nested, named doc comment +

with a paragraph, +

 and a code block
test
+test1
+
 test2
+  test3
+
+test1
+test2
+
test3
+test4
+
+test1
+test2
+
test3
+test4
+
test3
+test4
+
+test1
+test2
+

aux11: +

test3
+test4
+
+test1
+test2
+
 foo
+
 bar
+

This is some inline documentation in the export list +

 a code block using bird-tracks
+ each line must begin with > (which isn't significant unless it
+ is at the beginning of the line).
+
A hidden module +
hidden :: Int -> Int
A visible module +
module Visible
nested-style doc comments +
Existential / Universal types +
data Ex a
A data-type using existential/universal types +
Constructors
forall b . C b => Ex1 b
forall b . Ex2 b
forall b . C a => Ex3 b
Ex4 (forall a. a -> a)
Type signatures with argument docs +
k
:: T () ()This argument has type T +
-> T2 Int IntThis argument has type 'T2 Int Int' +
-> T3 Bool Bool -> T4 Float FloatThis argument has type T3 Bool Bool -> T4 Float Float +
-> T5 () ()This argument has a very long description that should + hopefully cause some wrapping to happen when it is finally + rendered by Haddock in the generated HTML page. +
-> IO ()This is the result type +
This is a function with documentation for each argument +
l
:: (Int, Int, Float)takes a triple +
-> Intreturns an Int +
m
:: R
-> N1 ()one of the arguments +
-> IO Intand the return value +
This function has some arg docs +
o
:: FloatThe input float +
-> IO FloatThe output float +
A foreign import with argument docs +
A section +
A subsection +
 a literal line
+

$ a non literal line $ +

f' :: Int
a function with a prime can be referred to as f' + but f' doesn't get link'd 'f\'' +
Produced by Haddock version 2.1.0
addfile ./tests/tests/TypeOperators.hs hunk ./tests/tests/TypeOperators.hs 1 +module TypeOperators ( + -- * stuff + (:-:), + (:+:), + Op, + O(..), + biO, + Flip(..) +) where + +data a :-: b + +data (a :+: b) c + +data a `Op` b + +newtype (g `O` f) a = O { unO :: g (f a) } + +biO :: (g `O` f) a +biO = undefined + +newtype Flip (~>) b a = Flip { unFlip :: a ~> b } addfile ./tests/tests/TypeOperators.html.ref hunk ./tests/tests/TypeOperators.html.ref 1 + + +TypeOperators
ContentsIndex
TypeOperators
Contents
stuff +
Synopsis
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a = O {
unO :: g (f a)
}
biO :: (g `O` f) a
newtype Flip (~>) b a = Flip {
unFlip :: a ~> b
}
stuff +
data a :-: b
data (a :+: b) c
data Op a b
newtype O g f a
Constructors
O
unO :: g (f a)
biO :: (g `O` f) a
newtype Flip (~>) b a
Constructors
Flip
unFlip :: a ~> b
Produced by Haddock version 2.1.0
addfile ./tests/tests/Visible.hs hunk ./tests/tests/Visible.hs 1 +module Visible where +visible :: Int -> Int +visible a = a addfile ./tests/tests/Visible.html.ref hunk ./tests/tests/Visible.html.ref 1 + + +Visible
ContentsIndex
Visible
Documentation
visible :: Int -> Int
Produced by Haddock version 2.1.0
}