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Some updates, including moving the derived instance item down to the
bottom of the list now that Ross has contributed some code that does
the job for common cases.
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An 80% solution to generating derived instances. A complete solution
would duplicate the instance inference logic, but if a type variable
occurs as a constructor argument, then we can just propagate the derived
class to the variable. But we know nothing of the constraints on any
type variables that occur elsewhere. For example, the declarations
data Either a b = Left a | Right b deriving (Eq, Ord)
data Ptr a = Ptr Addr# deriving (Eq, Ord)
newtype IORef a = IORef (STRef RealWorld a) deriving Eq
yield the instances
(Eq a, Eq b) => Eq (Either a b)
(Ord a, Ord b) => Ord (Either a b)
Eq (Ptr a)
Ord (Ptr a)
(??? a) => Eq (IORef a)
The last example shows the limits of this local analysis.
Note that a type variable may be in both categories: then we know a
constraint, but there may be more, or a stronger constraint, e.g.
data Tree a = Node a [Tree a] deriving Eq
yields
(Eq a, ??? a) => Eq (Tree a)
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Escape fragments. This fixes e.g. links to operators.
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Don't append a fragment to non-defining index entries, only documents
with a defining occurrence have a name anchor.
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Fixed some broken/redirected/canonicalized links found by a very picky
link checker.
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Don't convert a "newtype" to a single-constructor "data" for
non-abstractly exported types, they are quite different regarding
strictness/pattern matching. Now a "data" without any constructors is
only emitted for an abstractly exported type, regardless if it is
actually a "newtype" or a "data".
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* Add varsyms and consyms to index
* Exclude empty entries from index
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Adjust for the new exception libraries (as well as the old ones).
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Small bugfix in the --read-interface option parsing from Brett Letner.
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Fix cut-n-pasto
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update
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Remove <P>..</P> from around list items, to reduce excess whitespace
between the items of bulleted and ordered lists.
(Suggestion from Daan Leijen).
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The <TT> and <PRE> environments seem to use a font that is a little
too small in IE. Compensate.
(suggestion from Daan Leijen).
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Patch to allow simple hyperlinking to an arbitrary location in another
module's documentation, from Volker Stolz.
Now in a doc comment:
#foo#
creates
<a name="foo"></a>
And you can use the form "M\#foo" to hyperlink to the label 'foo' in
module 'M'. Note that the backslash is necessary for now.
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Patches to quieten ghc -Wall, from those nice folks at Galois.
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Remove ^Ms
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Add a version banner when invoked with -v
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Another item for the TODO list
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Fix the %changelog (rpm complained that it wasn't in the right order)
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Updates for version 0.4
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more tests
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- update the acknowledgements
- remove the paragraph that described how to use explicit layout with
doc comments; it isn't relevant any more.
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A new TODO list item
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Relax the restrictions which require doc comments to be followed by
semi colons - in some cases this isn't necessary. Now you can write
module M where {
-- | some doc
class C where {}
}
without needing to put a semicolon before the class declaration.
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Allow special id's ([], (), etc.) to be used in an import declarations.
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Allow special id's ([], (), etc.) to be used in an import declaration.
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Allow multiple sections/subsections before and after a comma in the
export list.
Also at the same time I made the syntax a little stricter (multiple
commas now aren't allowed between export specs).
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Mention alternative commenting styles.
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Be a bit more liberal in the kind of commenting styles we allow, as
suggested by Malcolm Wallace. Mostly this consists of allowing doc
comments either side of a separator token.
In an export list, a section heading is now allowed before the comma,
as well as after it. eg.
module M where (
T(..)
-- * a section heading
, f
-- * another section heading
, g
)
In record fields, doc comments are allowed anywhere (previously a
doc-next was allowed only after the comma, and a doc-before was
allowed only before the comma). eg.
data R = C {
-- | describes 'f'
f :: Int
-- | describes 'g'
, g :: Int
}
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merge rev. 1.35
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Fix a bug in mkExportItems when processing a module without an
explicit export list. We were placing one copy of a declaration for
each binder in the declaration, which for a data type would mean one
copy of the whole declaration per constructor or record selector.
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Sort the options a bit
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Document all the new options since 0.3
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Tweaks to the MS Help support: the extra files are now only generated
if you ask for them (--ms-help).
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Fix for rendering of the (->) type constructor, from Ross Paterson.
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'Microsoft HTML Help' support
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commented-out debugging code
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Don't require that the list type comes from "Prelude" for it to be
treated as special syntax (sometimes it comes from Data.List or maybe
even GHC.Base).
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More bugfixes to the export handling
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Clean up the code that constructs the exported declarations, and fix a
couple of bugs along the way. Now if you import a class hiding one of
the methods, then re-export the class, the version in the
documentation will correctly have the appropriate method removed.
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Update
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Handle import specs properly, include 'hiding'. Haddock now has a
complete implementation of the Haskell module system (more or less; I
won't claim it's 100% correct).
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When reading an interface, allow a file path offset to be specified
which represents the path to the HTML files for the modules specified
by that interface. The path may be either relative (to the location
of the HTML for this package), or absolute.
The syntax is
--read-interface=PATH,FILE
where PATH is the path to the HTML, and FILE is the filename
containing the interface.
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Cleaned up build root handling and added more docs
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Make it compile with newer GHCs
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Add support for reading and writing interface files(!)
This turned out to be quite easy, and necessary to get decent
hyperlinks between the documentation for separate packages in the
libraries.
The functionality isn't quite complete yet: for a given package of
modules, you'd like to say "the HTML for these modules lives in
directory <dir>" (currently they are assumed to be all in the same
place).
Two new flags:
--dump-interface=FILE dump an interface file in FILE
--read-interface=FILE read interface from FILE
an interface file describes *all* the modules being processed. Only
the exported names are kept in the interface: if you re-export a name
from a module in another interface the signature won't be copied.
This is a compromise to keep the size of the interfaces sensible.
Also, I added another useful option:
--no-implicit-prelude
avoids trying to import the Prelude. Previously this was the default,
but now importing the Prelude from elsewhere makes sense if you also
read in an interface containing the Prelude module, so Haddock imports
the Prelude implicitly according to the Haskell spec.
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When we have a single code block paragraph, don't place it in
<pre>..</pre>, just use <tt>..</tt> to avoid generating extra vertical
white space in some browsers.
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Add support for a "prologue" - a description for the whole library,
placed on the contents page before the module list.
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Empty declaration fixes.
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portability nit
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