2 module ParseIface ( parseIface, IfaceStuff(..) ) where
4 #include "HsVersions.h"
6 import HsSyn -- quite a bit of stuff
7 import RdrHsSyn -- oodles of synonyms
8 import HsTypes ( mkHsForAllTy, mkHsUsForAllTy )
10 import Const ( Literal(..), mkMachInt_safe )
11 import BasicTypes ( Fixity(..), FixityDirection(..),
12 NewOrData(..), Version
14 import CostCentre ( CostCentre(..), IsCafCC(..), IsDupdCC(..) )
15 import HsPragmas ( noDataPragmas, noClassPragmas )
16 import Type ( Kind, mkArrowKind, boxedTypeKind, openTypeKind, UsageAnn(..) )
17 import IdInfo ( ArityInfo, exactArity, CprInfo(..), InlinePragInfo(..) )
20 import RnMonad ( ImportVersion, LocalVersion, ParsedIface(..), WhatsImported(..),
21 RdrNamePragma, ExportItem, RdrAvailInfo, GenAvailInfo(..), WhetherHasOrphans
23 import Bag ( emptyBag, unitBag, snocBag )
24 import FiniteMap ( emptyFM, unitFM, addToFM, plusFM, bagToFM, FiniteMap )
25 import RdrName ( RdrName, mkRdrUnqual, mkSysQual, mkSysUnqual )
26 import Name ( OccName, Provenance )
27 import OccName ( mkSysOccFS,
28 tcName, varName, ipName, dataName, clsName, tvName, uvName,
31 import Module ( ModuleName, mkSysModuleFS )
32 import PrelMods ( mkTupNameStr, mkUbxTupNameStr )
33 import PrelInfo ( mkTupConRdrName, mkUbxTupConRdrName )
34 import SrcLoc ( SrcLoc )
47 %monad { P }{ thenP }{ returnP }
48 %lexer { lexer } { ITeof }
51 'case' { ITcase } -- Haskell keywords
54 'default' { ITdefault }
55 'deriving' { ITderiving }
64 'instance' { ITinstance }
67 'newtype' { ITnewtype }
73 'qualified' { ITqualified }
76 'forall' { ITforall } -- GHC extension keywords
77 'foreign' { ITforeign }
80 'dynamic' { ITdynamic }
83 '__interface' { ITinterface } -- interface keywords
84 '__export' { IT__export }
85 '__forall' { IT__forall }
86 '__depends' { ITdepends }
87 '__letrec' { ITletrec }
88 '__coerce' { ITcoerce }
89 '__inline_call'{ ITinlineCall }
90 '__inline_me' { ITinlineMe }
91 '__DEFAULT' { ITdefaultbranch }
93 '__integer' { ITinteger_lit }
94 '__float' { ITfloat_lit }
95 '__rational' { ITrational_lit }
96 '__addr' { ITaddr_lit }
97 '__litlit' { ITlit_lit }
98 '__string' { ITstring_lit }
99 '__ccall' { ITccall $$ }
101 '__sccC' { ITsccAllCafs }
104 '__fuall' { ITfuall }
107 '__P' { ITspecialise }
109 '__U' { ITunfold $$ }
110 '__S' { ITstrict $$ }
112 '__D' { ITdeprecated }
113 '__M' { ITcprinfo $$ }
115 '..' { ITdotdot } -- reserved symbols
128 '/\\' { ITbiglam } -- GHC-extension symbols
130 '{' { ITocurly } -- special symbols
141 VARID { ITvarid $$ } -- identifiers
143 VARSYM { ITvarsym $$ }
144 CONSYM { ITconsym $$ }
145 QVARID { ITqvarid $$ }
146 QCONID { ITqconid $$ }
147 QVARSYM { ITqvarsym $$ }
148 QCONSYM { ITqconsym $$ }
150 IPVARID { ITipvarid $$ } -- GHC extension
152 PRAGMA { ITpragma $$ }
155 STRING { ITstring $$ }
156 INTEGER { ITinteger $$ }
157 RATIONAL { ITrational $$ }
158 CLITLIT { ITlitlit $$ }
160 UNKNOWN { ITunknown $$ }
163 -- iface_stuff is the main production.
164 -- It recognises (a) a whole interface file
165 -- (b) a type (so that type sigs can be parsed lazily)
166 -- (c) the IdInfo part of a signature (same reason)
168 iface_stuff :: { IfaceStuff }
169 iface_stuff : iface { let (nm, iff) = $1 in PIface nm iff }
171 | id_info { PIdInfo $1 }
172 | '__R' rules { PRules $2 }
173 | '__D' deprecs { PDeprecs $2 }
176 iface :: { (ModuleName, ParsedIface) }
177 iface : '__interface' mod_fs INTEGER orphans checkVersion 'where'
183 { ( $2 -- Module name
185 pi_mod = fromInteger $3, -- Module version
187 pi_exports = $7, -- Exports
188 pi_usages = $8, -- Usages
189 pi_insts = $9, -- Local instances
190 pi_decls = $10, -- Decls
191 pi_rules = fst $11, -- Rules
192 pi_deprecs = snd $11 -- Deprecations
195 --------------------------------------------------------------------------
197 import_part :: { [ImportVersion OccName] }
199 | import_part import_decl { $2 : $1 }
201 import_decl :: { ImportVersion OccName }
202 import_decl : 'import' mod_fs INTEGER orphans whats_imported ';'
203 { (mkSysModuleFS $2, fromInteger $3, $4, $5) }
204 -- import Foo 3 :: a 1 b 3 c 7 ; means import a,b,c from Foo
205 -- import Foo 3 ; means import all of Foo
206 -- import Foo 3 ! :: ...stuff... ; the ! means that Foo contains orphans
208 orphans :: { WhetherHasOrphans }
212 whats_imported :: { WhatsImported OccName }
213 whats_imported : { Everything }
214 | '::' name_version_pairs { Specifically $2 }
216 name_version_pairs :: { [LocalVersion OccName] }
217 name_version_pairs : { [] }
218 | name_version_pair name_version_pairs { $1 : $2 }
220 name_version_pair :: { LocalVersion OccName }
221 name_version_pair : var_occ INTEGER { ($1, fromInteger $2) }
222 | tc_occ INTEGER { ($1, fromInteger $2) }
225 --------------------------------------------------------------------------
227 exports_part :: { [ExportItem] }
228 exports_part : { [] }
229 | exports_part '__export'
230 mod_fs entities ';' { (mkSysModuleFS $3, $4) : $1 }
232 entities :: { [RdrAvailInfo] }
234 | entity entities { $1 : $2 }
236 entity :: { RdrAvailInfo }
237 entity : tc_occ { AvailTC $1 [$1] }
238 | var_occ { Avail $1 }
239 | tc_occ stuff_inside { AvailTC $1 ($1:$2) }
240 | tc_occ '|' stuff_inside { AvailTC $1 $3 }
242 stuff_inside :: { [OccName] }
243 stuff_inside : '{' val_occs '}' { $2 }
245 val_occ :: { OccName }
249 val_occs :: { [OccName] }
251 | val_occ val_occs { $1 : $2 }
254 --------------------------------------------------------------------------
256 fixity :: { FixityDirection }
257 fixity : 'infixl' { InfixL }
258 | 'infixr' { InfixR }
262 mb_fix : {-nothing-} { 9 }
263 | INTEGER { (fromInteger $1) }
265 -----------------------------------------------------------------------------
267 csigs :: { [RdrNameSig] }
269 | 'where' '{' csigs1 '}' { $3 }
271 csigs1 :: { [RdrNameSig] }
272 csigs1 : csig { [$1] }
273 | csig ';' csigs1 { $1 : $3 }
275 csig :: { RdrNameSig }
276 csig : src_loc var_name '::' type { mkClassOpSig False $2 $4 $1 }
277 | src_loc var_name '=' '::' type { mkClassOpSig True $2 $5 $1 }
279 --------------------------------------------------------------------------
281 instance_decl_part :: { [RdrNameInstDecl] }
282 instance_decl_part : {- empty -} { [] }
283 | instance_decl_part inst_decl { $2 : $1 }
285 inst_decl :: { RdrNameInstDecl }
286 inst_decl : src_loc 'instance' type '=' var_name ';'
288 EmptyMonoBinds {- No bindings -}
289 [] {- No user pragmas -}
294 --------------------------------------------------------------------------
296 decls_part :: { [(Version, RdrNameHsDecl)] }
299 | decls_part version decl ';' { ($2,$3):$1 }
301 decl :: { RdrNameHsDecl }
302 decl : src_loc var_name '::' type maybe_idinfo
303 { SigD (IfaceSig $2 $4 ($5 $2) $1) }
304 | src_loc 'type' tc_name tv_bndrs '=' type
305 { TyClD (TySynonym $3 $4 $6 $1) }
306 | src_loc 'data' decl_context tc_name tv_bndrs constrs
307 { TyClD (TyData DataType $3 $4 $5 $6 Nothing noDataPragmas $1) }
308 | src_loc 'newtype' decl_context tc_name tv_bndrs newtype_constr
309 { TyClD (TyData NewType $3 $4 $5 $6 Nothing noDataPragmas $1) }
310 | src_loc 'class' decl_context tc_name tv_bndrs fds csigs
311 { TyClD (mkClassDecl $3 $4 $5 $6 $7 EmptyMonoBinds
313 | src_loc fixity mb_fix var_or_data_name
314 { FixD (FixitySig $4 (Fixity $3 $2) $1) }
316 maybe_idinfo :: { RdrName -> [HsIdInfo RdrName] }
317 maybe_idinfo : {- empty -} { \_ -> [] }
318 | pragma { \x -> case $1 of
319 POk _ (PIdInfo id_info) -> id_info
321 pprPanic "IdInfo parse failed"
325 pragma :: { ParseResult IfaceStuff }
326 pragma : src_loc PRAGMA { parseIface $2 PState{ bol = 0#, atbol = 1#,
332 -----------------------------------------------------------------------------
334 rules_and_deprecs :: { ([RdrNameRuleDecl], [(Maybe FAST_STRING, FAST_STRING)]) }
335 rules_and_deprecs : {- empty -} { ([], []) }
336 | rules_and_deprecs rule_or_deprec
338 append2 (xs1,ys1) (xs2,ys2) =
339 (xs1 `app` xs2, ys1 `app` ys2)
340 xs `app` [] = xs -- performance paranoia
341 xs `app` ys = xs ++ ys
345 rule_or_deprec :: { ([RdrNameRuleDecl], [(Maybe FAST_STRING, FAST_STRING)]) }
346 rule_or_deprec : pragma { case $1 of
347 POk _ (PRules rules) -> (rules,[])
348 POk _ (PDeprecs deprecs) -> ([],deprecs)
349 PFailed err -> pprPanic "Rules/Deprecations parse failed" err
352 -----------------------------------------------------------------------------
354 rules :: { [RdrNameRuleDecl] }
356 | rule ';' rules { $1:$3 }
358 rule :: { RdrNameRuleDecl }
359 rule : src_loc STRING rule_forall qvar_name
360 core_args '=' core_expr { IfaceRuleDecl $4 (UfRuleBody $2 $3 $5 $7) $1 }
362 rule_forall :: { [UfBinder RdrName] }
363 rule_forall : '__forall' '{' core_bndrs '}' { $3 }
365 -----------------------------------------------------------------------------
367 deprecs :: { [(Maybe FAST_STRING, FAST_STRING)] }
368 deprecs : {- empty -} { [] }
369 | deprecs deprec ';' { $2 : $1 }
371 deprec :: { (Maybe FAST_STRING, FAST_STRING) }
372 deprec : STRING { (Nothing, $1) }
373 | deprec_name STRING { (Just $1, $2) }
375 deprec_name :: { FAST_STRING }
379 -----------------------------------------------------------------------------
381 version :: { Version }
382 version : INTEGER { fromInteger $1 }
384 decl_context :: { RdrNameContext }
385 decl_context : { [] }
386 | '{' context_list1 '}' '=>' { $2 }
388 ----------------------------------------------------------------------------
390 constrs :: { [RdrNameConDecl] {- empty for handwritten abstract -} }
392 | '=' constrs1 { $2 }
394 constrs1 :: { [RdrNameConDecl] }
395 constrs1 : constr { [$1] }
396 | constr '|' constrs1 { $1 : $3 }
398 constr :: { RdrNameConDecl }
399 constr : src_loc ex_stuff data_name batypes { mkConDecl $3 $2 (VanillaCon $4) $1 }
400 | src_loc ex_stuff data_name '{' fields1 '}' { mkConDecl $3 $2 (RecCon $5) $1 }
401 -- We use "data_fs" so as to include ()
403 newtype_constr :: { [RdrNameConDecl] {- Empty if handwritten abstract -} }
404 newtype_constr : { [] }
405 | src_loc '=' ex_stuff data_name atype { [mkConDecl $4 $3 (NewCon $5 Nothing) $1] }
406 | src_loc '=' ex_stuff data_name '{' var_name '::' atype '}'
407 { [mkConDecl $4 $3 (NewCon $8 (Just $6)) $1] }
409 ex_stuff :: { ([HsTyVar RdrName], RdrNameContext) }
410 ex_stuff : { ([],[]) }
411 | '__forall' forall context '=>' { ($2,$3) }
413 batypes :: { [RdrNameBangType] }
415 | batype batypes { $1 : $2 }
417 batype :: { RdrNameBangType }
418 batype : atype { Unbanged $1 }
419 | '!' atype { Banged $2 }
420 | '!' '!' atype { Unpacked $3 }
422 fields1 :: { [([RdrName], RdrNameBangType)] }
423 fields1 : field { [$1] }
424 | field ',' fields1 { $1 : $3 }
426 field :: { ([RdrName], RdrNameBangType) }
427 field : var_names1 '::' type { ($1, Unbanged $3) }
428 | var_names1 '::' '!' type { ($1, Banged $4) }
429 | var_names1 '::' '!' '!' type { ($1, Unpacked $5) }
430 --------------------------------------------------------------------------
432 type :: { RdrNameHsType }
433 type : '__fuall' fuall '=>' type { mkHsUsForAllTy $2 $4 }
434 | '__forall' forall context '=>' type
435 { mkHsForAllTy (Just $2) $3 $5 }
436 | btype '->' type { MonoFunTy $1 $3 }
439 fuall :: { [RdrName] }
440 fuall : '[' uv_bndrs ']' { $2 }
442 forall :: { [HsTyVar RdrName] }
443 forall : '[' tv_bndrs ']' { $2 }
445 context :: { RdrNameContext }
447 | '{' context_list1 '}' { $2 }
449 context_list1 :: { RdrNameContext }
450 context_list1 : class { [$1] }
451 | class ',' context_list1 { $1 : $3 }
453 class :: { HsPred RdrName }
454 class : qcls_name atypes { (HsPClass $1 $2) }
455 | IPVARID '::' type { (HsPIParam (mkSysUnqual ipName $1) $3) }
457 types0 :: { [RdrNameHsType] {- Zero or more -} }
458 types0 : {- empty -} { [ ] }
462 types2 :: { [RdrNameHsType] {- Two or more -} }
463 types2 : type ',' type { [$1,$3] }
464 | type ',' types2 { $1 : $3 }
466 btype :: { RdrNameHsType }
468 | btype atype { MonoTyApp $1 $2 }
469 | '__u' usage atype { MonoUsgTy $2 $3 }
471 usage :: { MonoUsageAnn RdrName }
472 usage : '-' { MonoUsOnce }
474 | uv_name { MonoUsVar $1 }
476 atype :: { RdrNameHsType }
477 atype : qtc_name { MonoTyVar $1 }
478 | tv_name { MonoTyVar $1 }
479 | '(' types2 ')' { MonoTupleTy $2 True{-boxed-} }
480 | '(#' types0 '#)' { MonoTupleTy $2 False{-unboxed-} }
481 | '[' type ']' { MonoListTy $2 }
482 | '{' qcls_name atypes '}' { MonoDictTy $2 $3 }
483 | '{' IPVARID '::' type '}' { MonoIParamTy (mkSysUnqual ipName $2) $4 }
484 | '(' type ')' { $2 }
486 -- This one is dealt with via qtc_name
487 -- | '(' ')' { MonoTupleTy [] True }
489 atypes :: { [RdrNameHsType] {- Zero or more -} }
491 | atype atypes { $1 : $2 }
492 ---------------------------------------------------------------------
493 mod_fs :: { EncodedFS }
496 mod_name :: { ModuleName }
497 : mod_fs { mkSysModuleFS $1 }
500 ---------------------------------------------------
501 var_fs :: { EncodedFS }
504 | 'as' { SLIT("as") }
505 | 'qualified' { SLIT("qualified") }
506 | 'hiding' { SLIT("hiding") }
507 | 'forall' { SLIT("forall") }
508 | 'foreign' { SLIT("foreign") }
509 | 'export' { SLIT("export") }
510 | 'label' { SLIT("label") }
511 | 'dynamic' { SLIT("dynamic") }
512 | 'unsafe' { SLIT("unsafe") }
514 qvar_fs :: { (EncodedFS, EncodedFS) }
518 var_occ :: { OccName }
519 : var_fs { mkSysOccFS varName $1 }
521 var_name :: { RdrName }
522 var_name : var_occ { mkRdrUnqual $1 }
524 qvar_name :: { RdrName }
525 qvar_name : var_name { $1 }
526 | qvar_fs { mkSysQual varName $1 }
528 var_names :: { [RdrName] }
530 | var_name var_names { $1 : $2 }
532 var_names1 :: { [RdrName] }
533 var_names1 : var_name var_names { $1 : $2 }
535 ---------------------------------------------------
536 -- For some bizarre reason,
537 -- (,,,) is dealt with by the parser
538 -- Foo.(,,,) is dealt with by the lexer
541 data_fs :: { EncodedFS }
545 qdata_fs :: { (EncodedFS, EncodedFS) }
549 data_occ :: { OccName }
550 : data_fs { mkSysOccFS dataName $1 }
552 data_name :: { RdrName }
553 : data_occ { mkRdrUnqual $1 }
555 qdata_name :: { RdrName }
556 qdata_name : data_name { $1 }
557 | qdata_fs { mkSysQual dataName $1 }
559 qdata_names :: { [RdrName] }
561 | qdata_name qdata_names { $1 : $2 }
563 var_or_data_name :: { RdrName }
567 ---------------------------------------------------
568 tc_fs :: { EncodedFS }
571 tc_occ :: { OccName }
572 : tc_fs { mkSysOccFS tcName $1 }
574 tc_name :: { RdrName }
575 : tc_occ { mkRdrUnqual $1 }
577 qtc_name :: { RdrName }
579 | qdata_fs { mkSysQual tcName $1 }
581 ---------------------------------------------------
582 cls_name :: { RdrName }
583 : data_fs { mkSysUnqual clsName $1 }
585 qcls_name :: { RdrName }
587 | qdata_fs { mkSysQual clsName $1 }
589 ---------------------------------------------------
590 uv_name :: { RdrName }
591 : VARID { mkSysUnqual uvName $1 }
593 uv_bndr :: { RdrName }
596 uv_bndrs :: { [RdrName] }
598 | uv_bndr uv_bndrs { $1 : $2 }
600 ---------------------------------------------------
601 tv_name :: { RdrName }
602 : VARID { mkSysUnqual tvName $1 }
603 | VARSYM { mkSysUnqual tvName $1 {- Allow t2 as a tyvar -} }
605 tv_bndr :: { HsTyVar RdrName }
606 : tv_name '::' akind { IfaceTyVar $1 $3 }
607 | tv_name { IfaceTyVar $1 boxedTypeKind }
609 tv_bndrs :: { [HsTyVar RdrName] }
611 | tv_bndr tv_bndrs { $1 : $2 }
613 ---------------------------------------------------
614 fds :: { [([RdrName], [RdrName])] }
616 | '|' fds1 { reverse $2 }
618 fds1 :: { [([RdrName], [RdrName])] }
619 : fds1 ',' fd { $3 : $1 }
622 fd :: { ([RdrName], [RdrName]) }
623 : varids0 '->' varids0 { (reverse $1, reverse $3) }
625 varids0 :: { [RdrName] }
627 | varids0 tv_name { $2 : $1 }
629 ---------------------------------------------------
632 | akind '->' kind { mkArrowKind $1 $3 }
635 : VARSYM { if $1 == SLIT("*") then
637 else if $1 == SLIT("?") then
639 else panic "ParseInterface: akind"
641 | '(' kind ')' { $2 }
643 --------------------------------------------------------------------------
645 id_info :: { [HsIdInfo RdrName] }
647 | id_info_item id_info { $1 : $2 }
649 id_info_item :: { HsIdInfo RdrName }
650 : '__A' INTEGER { HsArity (exactArity (fromInteger $2)) }
651 | '__U' inline_prag core_expr { HsUnfold $2 $3 }
652 | '__M' { HsCprInfo $1 }
653 | '__S' { HsStrictness (HsStrictnessInfo $1) }
654 | '__C' { HsNoCafRefs }
655 | '__P' qvar_name { HsWorker $2 }
657 inline_prag :: { InlinePragInfo }
658 : {- empty -} { NoInlinePragInfo }
659 | '[' INTEGER ']' { IMustNotBeINLINEd True (Just (fromInteger $2)) } -- INLINE n
660 | '[' '!' INTEGER ']' { IMustNotBeINLINEd False (Just (fromInteger $3)) } -- NOINLINE n
662 -------------------------------------------------------
663 core_expr :: { UfExpr RdrName }
664 core_expr : '\\' core_bndrs '->' core_expr { foldr UfLam $4 $2 }
665 | 'case' core_expr 'of' var_name
666 '{' core_alts '}' { UfCase $2 $4 $6 }
668 | 'let' '{' core_val_bndr '=' core_expr
669 '}' 'in' core_expr { UfLet (UfNonRec $3 $5) $8 }
670 | '__letrec' '{' rec_binds '}'
671 'in' core_expr { UfLet (UfRec $3) $6 }
673 | con_or_primop '{' core_args '}' { UfCon $1 $3 }
674 | '__litlit' STRING atype { UfCon (UfLitLitCon $2 $3) [] }
676 | '__inline_me' core_expr { UfNote UfInlineMe $2 }
677 | '__inline_call' core_expr { UfNote UfInlineCall $2 }
678 | '__coerce' atype core_expr { UfNote (UfCoerce $2) $3 }
679 | scc core_expr { UfNote (UfSCC $1) $2 }
682 fexpr :: { UfExpr RdrName }
683 fexpr : fexpr core_arg { UfApp $1 $2 }
686 core_arg :: { UfExpr RdrName }
687 : '@' atype { UfType $2 }
690 core_args :: { [UfExpr RdrName] }
692 | core_arg core_args { $1 : $2 }
694 core_aexpr :: { UfExpr RdrName } -- Atomic expressions
695 core_aexpr : qvar_name { UfVar $1 }
697 | qdata_name { UfVar $1 }
698 -- This one means that e.g. "True" will parse as
699 -- (UfVar True_Id) rather than (UfCon True_Con []).
700 -- No big deal; it'll be inlined in a jiffy. I tried
701 -- parsing it to (Con con []) directly, but got bitten
702 -- when a real constructor Id showed up in an interface
703 -- file. As usual, a hack bites you in the end.
704 -- If you want to get a UfCon, then use the
705 -- curly-bracket notation (True {}).
707 | core_lit { UfCon (UfLitCon $1) [] }
708 | '(' core_expr ')' { $2 }
709 | '(' comma_exprs2 ')' { UfTuple (mkTupConRdrName (length $2)) $2 }
710 | '(#' comma_exprs0 '#)' { UfTuple (mkUbxTupConRdrName (length $2)) $2 }
712 -- This one is dealt with by qdata_name: see above comments
713 -- | '(' ')' { UfTuple (mkTupConRdrName 0) [] }
715 comma_exprs0 :: { [UfExpr RdrName] } -- Zero or more
716 comma_exprs0 : {- empty -} { [ ] }
717 | core_expr { [ $1 ] }
718 | comma_exprs2 { $1 }
720 comma_exprs2 :: { [UfExpr RdrName] } -- Two or more
721 comma_exprs2 : core_expr ',' core_expr { [$1,$3] }
722 | core_expr ',' comma_exprs2 { $1 : $3 }
724 con_or_primop :: { UfCon RdrName }
725 con_or_primop : qdata_name { UfDataCon $1 }
726 | qvar_name { UfPrimOp $1 }
727 | '__ccall' ccall_string { let
728 (is_dyn, is_casm, may_gc) = $1
730 UfCCallOp $2 is_dyn is_casm may_gc
733 rec_binds :: { [(UfBinder RdrName, UfExpr RdrName)] }
735 | core_val_bndr '=' core_expr ';' rec_binds { ($1,$3) : $5 }
737 core_alts :: { [UfAlt RdrName] }
739 | core_alt ';' core_alts { $1 : $3 }
741 core_alt :: { UfAlt RdrName }
742 core_alt : core_pat '->' core_expr { (fst $1, snd $1, $3) }
744 core_pat :: { (UfCon RdrName, [RdrName]) }
745 core_pat : core_lit { (UfLitCon $1, []) }
746 | '__litlit' STRING atype { (UfLitLitCon $2 $3, []) }
747 | qdata_name core_pat_names { (UfDataCon $1, $2) }
748 | '(' comma_var_names1 ')' { (UfDataCon (mkTupConRdrName (length $2)), $2) }
749 | '(#' comma_var_names1 '#)' { (UfDataCon (mkUbxTupConRdrName (length $2)), $2) }
750 | '__DEFAULT' { (UfDefault, []) }
751 | '(' core_pat ')' { $2 }
753 core_pat_names :: { [RdrName] }
754 core_pat_names : { [] }
755 | core_pat_name core_pat_names { $1 : $2 }
757 -- Tyvar names and variable names live in different name spaces
758 -- so they need to be signalled separately. But we don't record
759 -- types or kinds in a pattern; we work that out from the type
760 -- of the case scrutinee
761 core_pat_name :: { RdrName }
762 core_pat_name : var_name { $1 }
765 comma_var_names1 :: { [RdrName] } -- One or more
766 comma_var_names1 : var_name { [$1] }
767 | var_name ',' comma_var_names1 { $1 : $3 }
769 core_lit :: { Literal }
770 core_lit : integer { mkMachInt_safe $1 }
771 | CHAR { MachChar $1 }
772 | STRING { MachStr $1 }
773 | '__string' STRING { NoRepStr $2 (panic "NoRepStr type") }
774 | rational { MachDouble $1 }
775 | '__float' rational { MachFloat $2 }
777 | '__integer' integer { NoRepInteger $2 (panic "NoRepInteger type")
778 -- The type checker will add the types
781 | '__rational' integer integer { NoRepRational ($2 % $3)
782 (panic "NoRepRational type")
783 -- The type checker will add the type
786 | '__addr' integer { MachAddr $2 }
788 integer :: { Integer }
790 | '-' INTEGER { (-$2) }
792 rational :: { Rational }
794 | '-' RATIONAL { (-$2) }
796 core_bndr :: { UfBinder RdrName }
797 core_bndr : core_val_bndr { $1 }
798 | core_tv_bndr { $1 }
800 core_bndrs :: { [UfBinder RdrName] }
802 | core_bndr core_bndrs { $1 : $2 }
804 core_val_bndr :: { UfBinder RdrName }
805 core_val_bndr : var_name '::' atype { UfValBinder $1 $3 }
807 core_tv_bndr :: { UfBinder RdrName }
808 core_tv_bndr : '@' tv_name '::' akind { UfTyBinder $2 $4 }
809 | '@' tv_name { UfTyBinder $2 boxedTypeKind }
811 ccall_string :: { FAST_STRING }
817 ------------------------------------------------------------------------
818 scc :: { CostCentre }
819 : '__sccC' '{' mod_name STRING '}' { AllCafsCC $3 $4 }
820 | '__scc' '{' cc_name mod_name STRING cc_dup cc_caf '}'
821 { NormalCC { cc_name = $3, cc_mod = $4, cc_grp = $5,
822 cc_is_dupd = $6, cc_is_caf = $7 } }
824 cc_name :: { EncodedFS }
828 cc_dup :: { IsDupdCC }
829 cc_dup : { OriginalCC }
832 cc_caf :: { IsCafCC }
836 -------------------------------------------------------------------
838 src_loc :: { SrcLoc }
839 src_loc : {% getSrcLocP }
841 checkVersion :: { () }
842 : {-empty-} {% checkVersion Nothing }
843 | INTEGER {% checkVersion (Just (fromInteger $1)) }
845 -------------------------------------------------------------------
850 happyError buf PState{ loc = loc } = PFailed (ifaceParseErr buf loc)
852 data IfaceStuff = PIface EncodedFS{-.hi module name-} ParsedIface
853 | PIdInfo [HsIdInfo RdrName]
854 | PType RdrNameHsType
855 | PRules [RdrNameRuleDecl]
856 | PDeprecs [(Maybe FAST_STRING, FAST_STRING)]
858 mkConDecl name (ex_tvs, ex_ctxt) details loc = ConDecl name ex_tvs ex_ctxt details loc