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authorThomas Schilling <nominolo@googlemail.com>2008-09-14 20:56:29 +0000
committerThomas Schilling <nominolo@googlemail.com>2008-09-14 20:56:29 +0000
commit4feaaf7e1f3b9055bb24f991bd85e30a2294ada9 (patch)
treeb303d533731218613270be10482ef74d7cdb6451 /compiler/hsSyn
parenta200038f469418fef77d863dc3d1cd0125ec1e82 (diff)
downloadhaskell-4feaaf7e1f3b9055bb24f991bd85e30a2294ada9.tar.gz
Start haddockifying 'HsBindLR'.
Diffstat (limited to 'compiler/hsSyn')
-rw-r--r--compiler/hsSyn/HsBinds.lhs34
1 files changed, 19 insertions, 15 deletions
diff --git a/compiler/hsSyn/HsBinds.lhs b/compiler/hsSyn/HsBinds.lhs
index 86622be1c6..83273f0ca6 100644
--- a/compiler/hsSyn/HsBinds.lhs
+++ b/compiler/hsSyn/HsBinds.lhs
@@ -81,40 +81,44 @@ type LHsBindLR idL idR = Located (HsBindLR idL idR)
type LHsBindsLR idL idR = Bag (LHsBindLR idL idR)
data HsBindLR idL idR
- = FunBind { -- FunBind is used for both functions f x = e
- -- and variables f = \x -> e
--- Reason 1: Special case for type inference: see TcBinds.tcMonoBinds
---
--- Reason 2: instance decls can only have FunBinds, which is convenient
--- If you change this, you'll need to change e.g. rnMethodBinds
-
--- But note that the form f :: a->a = ...
--- parses as a pattern binding, just like
--- (f :: a -> a) = ...
+ = -- | FunBind is used for both functions @f x = e@
+ -- and variables @f = \x -> e@
+ --
+ -- Reason 1: Special case for type inference: see 'TcBinds.tcMonoBinds'.
+ --
+ -- Reason 2: Instance decls can only have FunBinds, which is convenient.
+ -- If you change this, you'll need to change e.g. rnMethodBinds
+ --
+ -- But note that the form @f :: a->a = ...@
+ -- parses as a pattern binding, just like
+ -- @(f :: a -> a) = ... @
+ FunBind {
fun_id :: Located idL,
- fun_infix :: Bool, -- True => infix declaration
+ fun_infix :: Bool, -- ^ True => infix declaration
- fun_matches :: MatchGroup idR, -- The payload
+ fun_matches :: MatchGroup idR, -- ^ The payload
- fun_co_fn :: HsWrapper, -- Coercion from the type of the MatchGroup to the type of
+ fun_co_fn :: HsWrapper, -- ^ Coercion from the type of the MatchGroup to the type of
-- the Id. Example:
+ -- @
-- f :: Int -> forall a. a -> a
-- f x y = y
+ -- @
-- Then the MatchGroup will have type (Int -> a' -> a')
-- (with a free type variable a'). The coercion will take
-- a CoreExpr of this type and convert it to a CoreExpr of
-- type Int -> forall a'. a' -> a'
-- Notice that the coercion captures the free a'.
- bind_fvs :: NameSet, -- After the renamer, this contains a superset of the
+ bind_fvs :: NameSet, -- ^ After the renamer, this contains a superset of the
-- Names of the other binders in this binding group that
-- are free in the RHS of the defn
-- Before renaming, and after typechecking,
-- the field is unused; it's just an error thunk
- fun_tick :: Maybe (Int,[idR]) -- This is the (optional) module-local tick number.
+ fun_tick :: Maybe (Int,[idR]) -- ^ This is the (optional) module-local tick number.
}
| PatBind { -- The pattern is never a simple variable;