; z <- repLetE ds e2
; wrapGenSyns expTyConName ss z }
-- FIXME: I haven't got the types here right yet
-repE (HsDo ctxt sts _ ty loc)
- | isComprCtxt ctxt = do { (ss,zs) <- repSts sts;
- e <- repDoE (nonEmptyCoreList zs);
- wrapGenSyns expTyConName ss e }
- | otherwise =
- panic "DsMeta.repE: Can't represent mdo and [: :] yet"
- where
- isComprCtxt ListComp = True
- isComprCtxt DoExpr = True
- isComprCtxt _ = False
+repE (HsDo DoExpr sts _ ty loc)
+ = do { (ss,zs) <- repSts sts;
+ e <- repDoE (nonEmptyCoreList zs);
+ wrapGenSyns expTyConName ss e }
+repE (HsDo ListComp sts _ ty loc)
+ = do { (ss,zs) <- repSts sts;
+ e <- repComp (nonEmptyCoreList zs);
+ wrapGenSyns expTyConName ss e }
+repE (HsDo _ _ _ _ _) = panic "DsMeta.repE: Can't represent mdo and [: :] yet"
repE (ExplicitList ty es) = do { xs <- repEs es; repListExp xs }
repE (ExplicitPArr ty es) =
panic "DsMeta.repE: No explicit parallel arrays yet"
= do { lit_expr <- dsLit lit; rep2 lit_name [lit_expr] }
where
lit_name = case lit of
- HsInt _ -> intLName
- HsChar _ -> charLName
- HsString _ -> stringLName
- HsRat _ _ -> rationalLName
- other -> uh_oh
+ HsInteger _ -> integerLName
+ HsChar _ -> charLName
+ HsString _ -> stringLName
+ HsRat _ _ -> rationalLName
+ other -> uh_oh
uh_oh = pprPanic "DsMeta.repLiteral: trying to represent exotic literal"
(ppr lit)
repOverloadedLiteral :: HsOverLit -> DsM (Core M.Lit)
-repOverloadedLiteral (HsIntegral i _) = repLiteral (HsInt i)
+repOverloadedLiteral (HsIntegral i _) = repLiteral (HsInteger i)
repOverloadedLiteral (HsFractional f _) = do { rat_ty <- lookupType rationalTyConName ;
repLiteral (HsRat f rat_ty) }
-- The type Rational will be in the environment, becuase
-- The names that are implicitly mentioned by ``bracket''
-- Should stay in sync with the import list of DsMeta
templateHaskellNames
- = mkNameSet [ intLName,charLName, stringLName, rationalLName,
+ = mkNameSet [ integerLName,charLName, stringLName, rationalLName,
plitName, pvarName, ptupName,
pconName, ptildeName, paspatName, pwildName,
varName, conName, litName, appName, infixEName, lamName,
mk_known_key_name space str uniq
= mkKnownKeyExternalName thModule (mkOccFS space str) uniq
-intLName = varQual FSLIT("intL") intLIdKey
+integerLName = varQual FSLIT("integerL") integerLIdKey
charLName = varQual FSLIT("charL") charLIdKey
stringLName = varQual FSLIT("stringL") stringLIdKey
rationalLName = varQual FSLIT("rationalL") rationalLIdKey
protoIdKey = mkPreludeMiscIdUnique 210
matchIdKey = mkPreludeMiscIdUnique 211
clauseIdKey = mkPreludeMiscIdUnique 212
-intLIdKey = mkPreludeMiscIdUnique 213
+integerLIdKey = mkPreludeMiscIdUnique 213
charLIdKey = mkPreludeMiscIdUnique 214
classDIdKey = mkPreludeMiscIdUnique 215
cvt_top (Foreign (Import callconv safety from nm typ))
= ForD (ForeignImport (vName nm) (cvtType typ) fi False loc0)
- where fi = CImport CCallConv (PlaySafe True) c_header nilFS cis
+ where fi = CImport callconv' safety' c_header nilFS cis
+ callconv' = case callconv of
+ CCall -> CCallConv
+ StdCall -> StdCallConv
+ safety' = case safety of
+ Unsafe -> PlayRisky
+ Safe -> PlaySafe False
+ Threadsafe -> PlaySafe True
(c_header', c_func') = break (== ' ') from
c_header = mkFastString c_header'
c_func = tail c_func'
ResultStmt (cvt y) loc0] loc0
cvtOverLit :: Lit -> HsOverLit
-cvtOverLit (Int i) = mkHsIntegral (fromInt i)
+cvtOverLit (Integer i) = mkHsIntegral i
cvtOverLit (Rational r) = mkHsFractional r
--- An Int is like an an (overloaded) '3' in a Haskell source program
+-- An Integer is like an an (overloaded) '3' in a Haskell source program
-- Similarly 3.5 for fractionals
cvtLit :: Lit -> HsLit
overloadedLit :: Lit -> Bool
-- True for literals that Haskell treats as overloaded
-overloadedLit (Int l) = True
-overloadedLit l = False
+overloadedLit (Integer l) = True
+overloadedLit (Rational l) = True
+overloadedLit l = False
void :: Type.Type
void = placeHolderType
loc0 :: SrcLoc
loc0 = generatedSrcLoc
-fromInt :: Int -> Integer
-fromInt x = toInteger x
-
-- variable names
vName :: String -> RdrName
vName = mkName varName
</para>
<para> A splice can occur in place of
<itemizedlist>
- <listitem><para> an expression;</para></listitem>
- <listitem><para> a list of top-level declarations;</para></listitem>
- <listitem><para> a pattern;</para></listitem>
- <listitem><para> a type;</para></listitem>
+ <listitem><para> an expression; the spliced expression must have type <literal>Expr</literal></para></listitem>
+ <listitem><para> a list of top-level declarations; ; the spliced expression must have type <literal>Q [Dec]</literal></para></listitem>
+ <listitem><para> a type; the spliced expression must have type <literal>Type</literal>.</para></listitem>
</itemizedlist>
+ (Note that the syntax for a declaration splice uses "<literal>$</literal>" not "<literal>splice</literal>" as in
+ the paper. Also the type of the enclosed expression must be <literal>Q [Dec]</literal>, not <literal>[Q Dec]</literal>
+ as in the paper.)
</para></listitem>
<listitem><para>
A expression quotation is written in Oxford brackets, thus:
<itemizedlist>
- <listitem><para> <literal>[| ... |]</literal>, where the "..." is an expression;</para></listitem>
- <listitem><para> <literal>[d| ... |]</literal>, where the "..." is a list of top-level declarations;</para></listitem>
- <listitem><para> <literal>[p| ... |]</literal>, where the "..." is a pattern;</para></listitem>
- <listitem><para> <literal>[t| ... |]</literal>, where the "..." is a type;</para></listitem>
+ <listitem><para> <literal>[| ... |]</literal>, where the "..." is an expression;
+ the quotation has type <literal>Expr</literal>.</para></listitem>
+ <listitem><para> <literal>[d| ... |]</literal>, where the "..." is a list of top-level declarations;
+ the quotation has type <literal>Q [Dec]</literal>.</para></listitem>
+ <listitem><para> <literal>[t| ... |]</literal>, where the "..." is a type;
+ the quotation has type <literal>Type</literal>.</para></listitem>
</itemizedlist></para></listitem>
<listitem><para>
projects / ghc-hetmet.git / commitdiff