{
-#include "HsVersions.h"
-module ParseIface ( parseIface ) where
-
-IMP_Ubiq(){-uitous-}
+module ParseIface ( parseIface, IfaceStuff(..) ) where
-import CmdLineOpts ( opt_IgnoreIfacePragmas )
+#include "HsVersions.h"
import HsSyn -- quite a bit of stuff
import RdrHsSyn -- oodles of synonyms
-import HsDecls ( HsIdInfo(..) )
+import HsDecls ( HsIdInfo(..), HsStrictnessInfo(..) )
import HsTypes ( mkHsForAllTy )
import HsCore
-import Literal
-import HsPragmas ( noGenPragmas, noDataPragmas, noClassPragmas, noClassOpPragmas, noInstancePragmas )
-import IdInfo ( exactArity, mkStrictnessInfo, mkBottomStrictnessInfo,
- ArgUsageInfo, FBTypeInfo
+import Const ( Literal(..), mkMachInt_safe )
+import BasicTypes ( IfaceFlavour(..), Fixity(..), FixityDirection(..),
+ NewOrData(..), Version
)
-import Kind ( Kind, mkArrowKind, mkTypeKind )
+import HsPragmas ( noDataPragmas, noClassPragmas )
+import Type ( Kind, mkArrowKind, boxedTypeKind, openTypeKind )
+import IdInfo ( ArityInfo, exactArity )
import Lex
-import RnMonad ( SYN_IE(ImportVersion), SYN_IE(LocalVersion), ParsedIface(..),
- SYN_IE(RdrNamePragma), SYN_IE(ExportItem)
+import RnMonad ( ImportVersion, LocalVersion, ParsedIface(..), WhatsImported(..),
+ RdrNamePragma, ExportItem, RdrAvailInfo, GenAvailInfo(..)
)
import Bag ( emptyBag, unitBag, snocBag )
import FiniteMap ( emptyFM, unitFM, addToFM, plusFM, bagToFM, FiniteMap )
-import Name ( OccName(..), isTCOcc, Provenance )
-import SrcLoc ( mkIfaceSrcLoc )
-import Util ( panic{-, pprPanic ToDo:rm-} )
-import ParseType ( parseType )
-import ParseUnfolding ( parseUnfolding )
+import Name ( OccName(..), isTCOcc, Provenance, Module,
+ mkTupNameStr, mkUbxTupNameStr
+ )
+import SrcLoc ( SrcLoc )
import Maybes
+import Outputable
------------------------------------------------------------------
-
-parseIface ls = parseIToks (lexIface ls)
-
------------------------------------------------------------------
+import GlaExts
}
-%name parseIToks
+%name parseIface
%tokentype { IfaceToken }
%monad { IfM }{ thenIf }{ returnIf }
+%lexer { lexIface } { ITeof }
%token
- INTERFACE { ITinterface }
- USAGES_PART { ITusages }
- VERSIONS_PART { ITversions }
- EXPORTS_PART { ITexports }
- INSTANCE_MODULES_PART { ITinstance_modules }
- INSTANCES_PART { ITinstances }
- FIXITIES_PART { ITfixities }
- DECLARATIONS_PART { ITdeclarations }
- PRAGMAS_PART { ITpragmas }
- DATA { ITdata }
- TYPE { ITtype }
- NEWTYPE { ITnewtype }
- DERIVING { ITderiving }
- CLASS { ITclass }
- WHERE { ITwhere }
- INSTANCE { ITinstance }
- INFIXL { ITinfixl }
- INFIXR { ITinfixr }
- INFIX { ITinfix }
- FORALL { ITforall }
- BANG { ITbang }
- VBAR { ITvbar }
- DCOLON { ITdcolon }
- COMMA { ITcomma }
- DARROW { ITdarrow }
- DOTDOT { ITdotdot }
- EQUAL { ITequal }
- OCURLY { ITocurly }
- OBRACK { ITobrack }
- OPAREN { IToparen }
- RARROW { ITrarrow }
- CCURLY { ITccurly }
- CBRACK { ITcbrack }
- CPAREN { ITcparen }
- SEMI { ITsemi }
-
- VARID { ITvarid $$ }
- CONID { ITconid $$ }
- VARSYM { ITvarsym $$ }
- CONSYM { ITconsym $$ }
- QVARID { ITqvarid $$ }
- QCONID { ITqconid $$ }
- QVARSYM { ITqvarsym $$ }
- QCONSYM { ITqconsym $$ }
-
- IDINFO_PART { ITidinfo $$ }
- TYPE_PART { ITtysig $$ }
- ARITY_PART { ITarity }
- STRICT_PART { ITstrict }
- UNFOLD_PART { ITunfold }
- DEMAND { ITdemand $$ }
- BOTTOM { ITbottom }
- LAM { ITlam }
- BIGLAM { ITbiglam }
- CASE { ITcase }
- PRIM_CASE { ITprim_case }
- LET { ITlet }
- LETREC { ITletrec }
- IN { ITin }
- OF { ITof }
- COERCE_IN { ITcoerce_in }
- COERCE_OUT { ITcoerce_out }
- ATSIGN { ITatsign }
- CCALL { ITccall $$ }
- SCC { ITscc $$ }
-
- CHAR { ITchar $$ }
- STRING { ITstring $$ }
- INTEGER { ITinteger $$ }
- DOUBLE { ITdouble $$ }
-
- INTEGER_LIT { ITinteger_lit }
- FLOAT_LIT { ITfloat_lit }
- RATIONAL_LIT { ITrational_lit }
- ADDR_LIT { ITaddr_lit }
- LIT_LIT { ITlit_lit }
- STRING_LIT { ITstring_lit }
-
- UNKNOWN { ITunknown $$ }
+ 'case' { ITcase } -- Haskell keywords
+ 'class' { ITclass }
+ 'data' { ITdata }
+ 'default' { ITdefault }
+ 'deriving' { ITderiving }
+ 'do' { ITdo }
+ 'else' { ITelse }
+ 'if' { ITif }
+ 'import' { ITimport }
+ 'in' { ITin }
+ 'infix' { ITinfix }
+ 'infixl' { ITinfixl }
+ 'infixr' { ITinfixr }
+ 'instance' { ITinstance }
+ 'let' { ITlet }
+ 'module' { ITmodule }
+ 'newtype' { ITnewtype }
+ 'of' { ITof }
+ 'then' { ITthen }
+ 'type' { ITtype }
+ 'where' { ITwhere }
+ 'as' { ITas }
+ 'qualified' { ITqualified }
+ 'hiding' { IThiding }
+
+ '__interface' { ITinterface } -- GHC-extension keywords
+ '__export' { ITexport }
+ '__instimport' { ITinstimport }
+ '__forall' { ITforall }
+ '__letrec' { ITletrec }
+ '__coerce' { ITcoerce }
+ '__inline' { ITinline }
+ '__DEFAULT' { ITdefaultbranch }
+ '__bot' { ITbottom }
+ '__integer' { ITinteger_lit }
+ '__float' { ITfloat_lit }
+ '__rational' { ITrational_lit }
+ '__addr' { ITaddr_lit }
+ '__litlit' { ITlit_lit }
+ '__string' { ITstring_lit }
+ '__ccall' { ITccall $$ }
+ '__scc' { ITscc $$ }
+ '__a' { ITtypeapp }
+
+ '__A' { ITarity }
+ '__P' { ITspecialise }
+ '__C' { ITnocaf }
+ '__U' { ITunfold $$ }
+ '__S' { ITstrict $$ }
+
+ '..' { ITdotdot } -- reserved symbols
+ '::' { ITdcolon }
+ '=' { ITequal }
+ '\\' { ITlam }
+ '|' { ITvbar }
+ '<-' { ITlarrow }
+ '->' { ITrarrow }
+ '@' { ITat }
+ '~' { ITtilde }
+ '=>' { ITdarrow }
+ '-' { ITminus }
+ '!' { ITbang }
+
+ '/\\' { ITbiglam } -- GHC-extension symbols
+
+ '{' { ITocurly } -- special symbols
+ '}' { ITccurly }
+ '[' { ITobrack }
+ ']' { ITcbrack }
+ '(' { IToparen }
+ ')' { ITcparen }
+ '(#' { IToubxparen }
+ '#)' { ITcubxparen }
+ ';' { ITsemi }
+ ',' { ITcomma }
+
+ VARID { ITvarid $$ } -- identifiers
+ CONID { ITconid $$ }
+ VARSYM { ITvarsym $$ }
+ CONSYM { ITconsym $$ }
+ QVARID { ITqvarid $$ }
+ QCONID { ITqconid $$ }
+ QVARSYM { ITqvarsym $$ }
+ QCONSYM { ITqconsym $$ }
+
+ PRAGMA { ITpragma $$ }
+
+ CHAR { ITchar $$ }
+ STRING { ITstring $$ }
+ INTEGER { ITinteger $$ }
+ RATIONAL { ITrational $$ }
+
+ UNKNOWN { ITunknown $$ }
%%
+-- iface_stuff is the main production.
+-- It recognises (a) a whole interface file
+-- (b) a type (so that type sigs can be parsed lazily)
+-- (c) the IdInfo part of a signature (same reason)
+
+iface_stuff :: { IfaceStuff }
+iface_stuff : iface { PIface $1 }
+ | type { PType $1 }
+ | id_info { PIdInfo $1 }
+
+
iface :: { ParsedIface }
-iface : INTERFACE CONID INTEGER
- inst_modules_part
- usages_part
- exports_part fixities_part
- instances_part
+iface : '__interface' CONID INTEGER checkVersion 'where'
+ import_part
+ instance_import_part
+ exports_part
+ fixities_part
+ instance_decl_part
decls_part
{ ParsedIface
$2 -- Module name
(fromInteger $3) -- Module version
- $5 -- Usages
- $6 -- Exports
- $4 -- Instance modules
- $7 -- Fixities
- $9 -- Decls
- $8 -- Local instances
- }
+ (reverse $6) -- Usages
+ (reverse $8) -- Exports
+ (reverse $7) -- Instance import modules
+ (reverse $9) -- Fixities
+ (reverse $11) -- Decls
+ (reverse $10) -- Local instances
+ }
+--------------------------------------------------------------------------
-usages_part :: { [ImportVersion OccName] }
-usages_part : USAGES_PART module_stuff_pairs { $2 }
- | { [] }
-
-module_stuff_pairs :: { [ImportVersion OccName] }
-module_stuff_pairs : { [] }
- | module_stuff_pair module_stuff_pairs { $1 : $2 }
-
-module_stuff_pair :: { ImportVersion OccName }
-module_stuff_pair : mod_name INTEGER DCOLON name_version_pairs SEMI
- { ($1, fromInteger $2, $4) }
+import_part :: { [ImportVersion OccName] }
+import_part : { [] }
+ | import_part import_decl { $2 : $1 }
+
+import_decl :: { ImportVersion OccName }
+import_decl : 'import' mod_name opt_bang INTEGER '::' whats_imported ';'
+ { ($2, $3, fromInteger $4, $6) }
-versions_part :: { [LocalVersion OccName] }
-versions_part : VERSIONS_PART name_version_pairs { $2 }
- | { [] }
+whats_imported :: { WhatsImported OccName }
+whats_imported : { Everything }
+ | name_version_pair name_version_pairs { Specifically ($1:$2) }
name_version_pairs :: { [LocalVersion OccName] }
name_version_pairs : { [] }
| name_version_pair name_version_pairs { $1 : $2 }
name_version_pair :: { LocalVersion OccName }
-name_version_pair : entity_occ INTEGER { ($1, fromInteger $2)
+name_version_pair : entity_occ INTEGER { ($1, fromInteger $2) }
+
+instance_import_part :: { [Module] }
+instance_import_part : { [] }
+ | instance_import_part '__instimport' mod_name ';'
+ { $3 : $1 }
+
--------------------------------------------------------------------------
- }
exports_part :: { [ExportItem] }
-exports_part : EXPORTS_PART export_items { $2 }
- | { [] }
+exports_part : { [] }
+ | exports_part '__export' opt_bang mod_name entities ';'
+ { ($4,$3,$5) : $1 }
-export_items :: { [ExportItem] }
-export_items : { [] }
- | mod_name entities SEMI export_items { ($1,$2) : $4 }
+opt_bang :: { IfaceFlavour }
+opt_bang : { HiFile }
+ | '!' { HiBootFile }
-entities :: { [(OccName, [OccName])] }
+entities :: { [RdrAvailInfo] }
entities : { [] }
| entity entities { $1 : $2 }
-entity :: { (OccName, [OccName]) }
-entity : entity_occ { ($1, if isTCOcc $1
- then [$1] {- AvailTC -}
- else []) {- Avail -} }
- | entity_occ stuff_inside { ($1, ($1 : $2)) {- TyCls exported too -} }
- | entity_occ BANG stuff_inside { ($1, $3) {- TyCls not exported -} }
+entity :: { RdrAvailInfo }
+entity : entity_occ { if isTCOcc $1
+ then AvailTC $1 [$1]
+ else Avail $1 }
+ | entity_occ stuff_inside { AvailTC $1 ($1:$2) }
+ | entity_occ '|' stuff_inside { AvailTC $1 $3 }
stuff_inside :: { [OccName] }
-stuff_inside : OPAREN val_occs1 CPAREN { $2
+stuff_inside : '{' val_occs '}' { $2 }
+
--------------------------------------------------------------------------
- }
-inst_modules_part :: { [Module] }
-inst_modules_part : { [] }
- | INSTANCE_MODULES_PART mod_list { $2 }
+fixities_part :: { [(OccName,Fixity)] }
+fixities_part : { [] }
+ | fixities_part fixity_decl ';' { $2 : $1 }
-mod_list :: { [Module] }
-mod_list : { [] }
- | mod_name mod_list { $1 : $2
---------------------------------------------------------------------------
- }
+fixity_decl :: { (OccName,Fixity) }
+fixity_decl : 'infixl' mb_fix val_occ { ($3, Fixity $2 InfixL) }
+ | 'infixr' mb_fix val_occ { ($3, Fixity $2 InfixR) }
+ | 'infix' mb_fix val_occ { ($3, Fixity $2 InfixN) }
+
+mb_fix :: { Int }
+mb_fix : {-nothing-} { 9 }
+ | INTEGER { (fromInteger $1) }
-fixities_part :: { [(OccName,Fixity)] }
-fixities_part : { [] }
- | FIXITIES_PART fixes { $2 }
+-----------------------------------------------------------------------------
-fixes :: { [(OccName,Fixity)] }
-fixes : { [] }
- | fix fixes { $1 : $2 }
+csigs :: { [RdrNameSig] }
+csigs : { [] }
+ | 'where' '{' csigs1 '}' { $3 }
+
+csigs1 :: { [RdrNameSig] }
+csigs1 : csig { [$1] }
+ | csig ';' csigs1 { $1 : $3 }
+
+csig :: { RdrNameSig }
+csig : src_loc var_name '::' type { ClassOpSig $2 Nothing $4 $1 }
+ | src_loc var_name '=' '::' type
+ { ClassOpSig $2
+ (Just (error "Un-filled-in default method"))
+ $5 $1 }
-fix :: { (OccName, Fixity) }
-fix : INFIXL INTEGER val_occ SEMI { ($3, Fixity (fromInteger $2) InfixL) }
- | INFIXR INTEGER val_occ SEMI { ($3, Fixity (fromInteger $2) InfixR) }
- | INFIX INTEGER val_occ SEMI { ($3, Fixity (fromInteger $2) InfixN)
--------------------------------------------------------------------------
- }
-decls_part :: { [(Version, RdrNameHsDecl)] }
-decls_part : { [] }
- | DECLARATIONS_PART topdecls { $2 }
+instance_decl_part :: { [RdrNameInstDecl] }
+instance_decl_part : {- empty -} { [] }
+ | instance_decl_part inst_decl { $2 : $1 }
-topdecls :: { [(Version, RdrNameHsDecl)] }
-topdecls : { [] }
- | version topdecl topdecls { ($1,$2) : $3 }
+inst_decl :: { RdrNameInstDecl }
+inst_decl : src_loc 'instance' type '=' var_name ';'
+ { InstDecl $3
+ EmptyMonoBinds {- No bindings -}
+ [] {- No user pragmas -}
+ (Just $5) {- Dfun id -}
+ $1
+ }
+
+--------------------------------------------------------------------------
+
+decls_part :: { [(Version, RdrNameHsDecl)] }
+decls_part
+ : {- empty -} { [] }
+ | decls_part version decl ';' { ($2,$3):$1 }
+
+decl :: { RdrNameHsDecl }
+decl : src_loc var_name '::' type maybe_idinfo
+ { SigD (IfaceSig $2 $4 ($5 $2) $1) }
+ | src_loc 'type' tc_name tv_bndrs '=' type
+ { TyD (TySynonym $3 $4 $6 $1) }
+ | src_loc 'data' decl_context data_fs tv_bndrs constrs
+ { TyD (TyData DataType $3 (Unqual (TCOcc $4)) $5 $6 Nothing noDataPragmas $1) }
+ | src_loc 'newtype' decl_context tc_name tv_bndrs newtype_constr
+ { TyD (TyData NewType $3 $4 $5 $6 Nothing noDataPragmas $1) }
+ | src_loc 'class' decl_context tc_name tv_bndrs csigs
+ { ClD (mkClassDecl $3 $4 $5 $6 EmptyMonoBinds
+ noClassPragmas $1) }
+maybe_idinfo :: { RdrName -> [HsIdInfo RdrName] }
+maybe_idinfo : {- empty -} { \_ -> [] }
+ | src_loc PRAGMA { \x ->
+ case parseIface $2 $1 of
+ Succeeded (PIdInfo id_info) -> id_info
+ other -> pprPanic "IdInfo parse failed"
+ (ppr x)
+ }
+
+-----------------------------------------------------------------------------
version :: { Version }
version : INTEGER { fromInteger $1 }
-topdecl :: { RdrNameHsDecl }
-topdecl : TYPE tc_name tv_bndrs EQUAL type SEMI
- { TyD (TySynonym $2 $3 $5 mkIfaceSrcLoc) }
- | DATA decl_context tc_name tv_bndrs constrs deriving SEMI
- { TyD (TyData $2 $3 $4 $5 $6 noDataPragmas mkIfaceSrcLoc) }
- | NEWTYPE decl_context tc_name tv_bndrs EQUAL constr1 deriving SEMI
- { TyD (TyNew $2 $3 $4 $6 $7 noDataPragmas mkIfaceSrcLoc) }
- | CLASS decl_context tc_name tv_bndr csigs SEMI
- { ClD (ClassDecl $2 $3 $4 $5 EmptyMonoBinds noClassPragmas mkIfaceSrcLoc) }
- | var_name TYPE_PART id_info
- {
- let
- (Succeeded tp) = parseType $2
- in
- SigD (IfaceSig $1 tp $3 mkIfaceSrcLoc) }
-
-id_info :: { [HsIdInfo RdrName] }
-id_info : { [] }
- | IDINFO_PART { let { (Succeeded id_info) = parseUnfolding $1 } in id_info}
-
decl_context :: { RdrNameContext }
decl_context : { [] }
- | OCURLY context_list1 CCURLY DARROW { $2 }
-
-
-csigs :: { [RdrNameSig] }
-csigs : { [] }
- | WHERE OCURLY csigs1 CCURLY { $3 }
+ | '{' context_list1 '}' '=>' { $2 }
-csigs1 :: { [RdrNameSig] }
-csigs1 : csig { [$1] }
- | csig SEMI csigs1 { $1 : $3 }
-
-csig :: { RdrNameSig }
-csig : var_name DCOLON type { ClassOpSig $1 $1 $3 mkIfaceSrcLoc
----------------------------------------------------------------
- }
-constrs :: { [RdrNameConDecl] }
- : { [] }
- | EQUAL constrs1 { $2 }
+constrs :: { [RdrNameConDecl] {- empty for handwritten abstract -} }
+ : { [] }
+ | '=' constrs1 { $2 }
constrs1 :: { [RdrNameConDecl] }
constrs1 : constr { [$1] }
- | constr VBAR constrs1 { $1 : $3 }
+ | constr '|' constrs1 { $1 : $3 }
constr :: { RdrNameConDecl }
-constr : data_name batypes { ConDecl $1 $2 mkIfaceSrcLoc }
- | data_name OCURLY fields1 CCURLY { RecConDecl $1 $3 mkIfaceSrcLoc }
+constr : src_loc ex_stuff data_fs batypes { mkConDecl (Unqual (VarOcc $3)) $2 (VanillaCon $4) $1 }
+ | src_loc ex_stuff data_fs '{' fields1 '}' { mkConDecl (Unqual (VarOcc $3)) $2 (RecCon $5) $1 }
+ -- We use "data_fs" so as to include ()
-constr1 :: { RdrNameConDecl {- For a newtype -} }
-constr1 : data_name atype { NewConDecl $1 $2 mkIfaceSrcLoc }
+newtype_constr :: { [RdrNameConDecl] {- Empty if handwritten abstract -} }
+newtype_constr : { [] }
+ | src_loc '=' ex_stuff data_name atype { [mkConDecl $4 $3 (NewCon $5) $1] }
-deriving :: { Maybe [RdrName] }
- : { Nothing }
- | DERIVING OPAREN qtc_names1 CPAREN { Just $3 }
+ex_stuff :: { ([HsTyVar RdrName], RdrNameContext) }
+ex_stuff : { ([],[]) }
+ | '__forall' forall context '=>' { ($2,$3) }
batypes :: { [RdrNameBangType] }
batypes : { [] }
batype :: { RdrNameBangType }
batype : atype { Unbanged $1 }
- | BANG atype { Banged $2 }
+ | '!' atype { Banged $2 }
fields1 :: { [([RdrName], RdrNameBangType)] }
fields1 : field { [$1] }
- | field COMMA fields1 { $1 : $3 }
+ | field ',' fields1 { $1 : $3 }
field :: { ([RdrName], RdrNameBangType) }
-field : var_names1 DCOLON type { ($1, Unbanged $3) }
- | var_names1 DCOLON BANG type { ($1, Banged $4)
+field : var_names1 '::' type { ($1, Unbanged $3) }
+ | var_names1 '::' '!' type { ($1, Banged $4) }
--------------------------------------------------------------------------
- }
+
+type :: { RdrNameHsType }
+type : '__forall' forall context '=>' type
+ { mkHsForAllTy $2 $3 $5 }
+ | btype '->' type { MonoFunTy $1 $3 }
+ | btype { $1 }
forall :: { [HsTyVar RdrName] }
-forall : OBRACK tv_bndrs CBRACK { $2 }
+forall : '[' tv_bndrs ']' { $2 }
context :: { RdrNameContext }
context : { [] }
- | OCURLY context_list1 CCURLY { $2 }
+ | '{' context_list1 '}' { $2 }
context_list1 :: { RdrNameContext }
context_list1 : class { [$1] }
- | class COMMA context_list1 { $1 : $3 }
-
-class :: { (RdrName, RdrNameHsType) }
-class : qtc_name atype { ($1, $2) }
-
-type :: { RdrNameHsType }
-type : FORALL forall context DARROW type { mkHsForAllTy $2 $3 $5 }
- | tautype { $1 }
+ | class ',' context_list1 { $1 : $3 }
-tautype :: { RdrNameHsType }
-tautype : btype { $1 }
- | btype RARROW tautype { MonoFunTy $1 $3 }
+class :: { (RdrName, [RdrNameHsType]) }
+class : qtc_name atypes { ($1, $2) }
types2 :: { [RdrNameHsType] {- Two or more -} }
-types2 : type COMMA type { [$1,$3] }
- | type COMMA types2 { $1 : $3 }
+types2 : type ',' type { [$1,$3] }
+ | type ',' types2 { $1 : $3 }
btype :: { RdrNameHsType }
btype : atype { $1 }
atype :: { RdrNameHsType }
atype : qtc_name { MonoTyVar $1 }
| tv_name { MonoTyVar $1 }
- | OPAREN types2 CPAREN { MonoTupleTy dummyRdrTcName $2 }
- | OBRACK type CBRACK { MonoListTy dummyRdrTcName $2 }
- | OCURLY qtc_name atype CCURLY { MonoDictTy $2 $3 }
- | OPAREN type CPAREN { $2 }
+ | '(' ')' { MonoTupleTy [] True }
+ | '(' types2 ')' { MonoTupleTy $2 True{-boxed-} }
+ | '(#' type '#)' { MonoTupleTy [$2] False{-unboxed-} }
+ | '(#' types2 '#)' { MonoTupleTy $2 False{-unboxed-} }
+ | '[' type ']' { MonoListTy $2 }
+ | '{' qtc_name atypes '}' { MonoDictTy $2 $3 }
+ | '(' type ')' { $2 }
atypes :: { [RdrNameHsType] {- Zero or more -} }
atypes : { [] }
- | atype atypes { $1 : $2
+ | atype atypes { $1 : $2 }
---------------------------------------------------------------------
- }
mod_name :: { Module }
: CONID { $1 }
-var_occ :: { OccName }
-var_occ : VARID { VarOcc $1 }
- | VARSYM { VarOcc $1 }
- | BANG { VarOcc SLIT("!") {-sigh, double-sigh-} }
+var_fs :: { FAST_STRING }
+ : VARID { $1 }
+ | VARSYM { $1 }
+ | '-' { SLIT("-") }
+ | '!' { SLIT("!") }
-tc_occ :: { OccName }
-tc_occ : CONID { TCOcc $1 }
- | CONSYM { TCOcc $1 }
- | OPAREN RARROW CPAREN { TCOcc SLIT("->") }
+data_fs :: { FAST_STRING }
+ : CONID { $1 }
+ | CONSYM { $1 }
+ | '->' { SLIT("->") }
+ | '(' ')' { SLIT("()") }
+ | '(' commas ')' { snd (mkTupNameStr $2) }
+ | '[' ']' { SLIT("[]") }
-entity_occ :: { OccName }
-entity_occ : var_occ { $1 }
- | tc_occ { $1 }
- | RARROW { TCOcc SLIT("->") {- Allow un-paren'd arrow -} }
+commas :: { Int }
+ : ',' { 2 }
+ | commas ',' { $1 + 1 }
val_occ :: { OccName }
-val_occ : var_occ { $1 }
- | CONID { VarOcc $1 }
- | CONSYM { VarOcc $1 }
+ : var_fs { VarOcc $1 }
+ | data_fs { VarOcc $1 }
-val_occs1 :: { [OccName] }
+val_occs :: { [OccName] }
: val_occ { [$1] }
- | val_occ val_occs1 { $1 : $2 }
+ | val_occ val_occs { $1 : $2 }
-
-qvar_name :: { RdrName }
- : QVARID { varQual $1 }
- | QVARSYM { varQual $1 }
+entity_occ :: { OccName }
+ : var_fs { VarOcc $1 }
+ | data_fs { TCOcc $1 }
var_name :: { RdrName }
-var_name : var_occ { Unqual $1 }
+var_name : var_fs { Unqual (VarOcc $1) }
-var_names1 :: { [RdrName] }
-var_names1 : var_name { [$1] }
- | var_name var_names1 { $1 : $2 }
+qvar_name :: { RdrName }
+qvar_name : var_name { $1 }
+ | QVARID { lexVarQual $1 }
+ | QVARSYM { lexVarQual $1 }
-any_var_name :: {RdrName}
-any_var_name : var_name { $1 }
- | qvar_name { $1 }
+var_names :: { [RdrName] }
+var_names : { [] }
+ | var_name var_names { $1 : $2 }
-qdata_name :: { RdrName }
-qdata_name : QCONID { varQual $1 }
- | QCONSYM { varQual $1 }
+var_names1 :: { [RdrName] }
+var_names1 : var_name var_names { $1 : $2 }
data_name :: { RdrName }
-data_name : CONID { Unqual (VarOcc $1) }
+ : CONID { Unqual (VarOcc $1) }
| CONSYM { Unqual (VarOcc $1) }
+ | '(' commas ')' { Unqual (VarOcc (snd (mkTupNameStr $2))) }
+ | '[' ']' { Unqual (VarOcc SLIT("[]")) }
-
-qtc_name :: { RdrName }
-qtc_name : QCONID { tcQual $1 }
-
-qtc_names1 :: { [RdrName] }
- : qtc_name { [$1] }
- | qtc_name COMMA qtc_names1 { $1 : $3 }
+qdata_name :: { RdrName }
+qdata_name : data_name { $1 }
+ | QCONID { lexVarQual $1 }
+ | QCONSYM { lexVarQual $1 }
+
+qdata_names :: { [RdrName] }
+qdata_names : { [] }
+ | qdata_name qdata_names { $1 : $2 }
tc_name :: { RdrName }
-tc_name : tc_occ { Unqual $1 }
+tc_name : CONID { Unqual (TCOcc $1) }
+ | CONSYM { Unqual (TCOcc $1) }
+ | '(' '->' ')' { Unqual (TCOcc SLIT("->")) }
+ | '(' commas ')' { Unqual (TCOcc (snd (mkTupNameStr $2))) }
+ | '[' ']' { Unqual (TCOcc SLIT("[]")) }
+
+qtc_name :: { RdrName }
+qtc_name : tc_name { $1 }
+ | QCONID { lexTcQual $1 }
+ | QCONSYM { lexTcQual $1 }
tv_name :: { RdrName }
tv_name : VARID { Unqual (TvOcc $1) }
-
-tv_names :: { [RdrName] }
- : { [] }
- | tv_name tv_names { $1 : $2 }
+ | VARSYM { Unqual (TvOcc $1) {- Allow t2 as a tyvar -} }
tv_bndr :: { HsTyVar RdrName }
-tv_bndr : tv_name DCOLON akind { IfaceTyVar $1 $3 }
+tv_bndr : tv_name '::' akind { IfaceTyVar $1 $3 }
| tv_name { UserTyVar $1 }
tv_bndrs :: { [HsTyVar RdrName] }
kind :: { Kind }
: akind { $1 }
- | akind RARROW kind { mkArrowKind $1 $3 }
+ | akind '->' kind { mkArrowKind $1 $3 }
akind :: { Kind }
- : VARSYM { mkTypeKind {- ToDo: check that it's "*" -} }
- | OPAREN kind CPAREN { $2
---------------------------------------------------------------------------
+ : VARSYM { if $1 == SLIT("*") then
+ boxedTypeKind
+ else if $1 == SLIT("**") then
+ openTypeKind
+ else panic "ParseInterface: akind"
}
+ | '(' kind ')' { $2 }
+--------------------------------------------------------------------------
-instances_part :: { [RdrNameInstDecl] }
-instances_part : INSTANCES_PART instdecls { $2 }
- | { [] }
+id_info :: { [HsIdInfo RdrName] }
+id_info : { [] }
+ | id_info_item id_info { $1 : $2 }
+
+id_info_item :: { HsIdInfo RdrName }
+id_info_item : '__A' arity_info { HsArity $2 }
+ | strict_info { HsStrictness $1 }
+ | '__bot' { HsStrictness HsBottom }
+ | '__U' core_expr { HsUnfold $1 (Just $2) }
+ | '__U' { HsUnfold $1 Nothing }
+ | '__P' spec_tvs
+ atypes '=' core_expr { HsSpecialise $2 $3 $5 }
+ | '__C' { HsNoCafRefs }
+
+
+spec_tvs :: { [HsTyVar RdrName] }
+spec_tvs : '[' tv_bndrs ']' { $2 }
+
+
+arity_info :: { ArityInfo }
+arity_info : INTEGER { exactArity (fromInteger $1) }
+
+strict_info :: { HsStrictnessInfo RdrName }
+strict_info : '__S' qvar_name '{' qdata_names '}'
+ { HsStrictnessInfo $1 (Just ($2,$4)) }
+ | '__S' qvar_name { HsStrictnessInfo $1 (Just ($2,[])) }
+ | '__S' { HsStrictnessInfo $1 Nothing }
+
+-------------------------------------------------------
+core_expr :: { UfExpr RdrName }
+core_expr : '\\' core_bndrs '->' core_expr { foldr UfLam $4 $2 }
+ | 'case' core_expr 'of' var_name
+ '{' core_alts '}' { UfCase $2 $4 $6 }
+
+ | 'let' '{' core_val_bndr '=' core_expr
+ '}' 'in' core_expr { UfLet (UfNonRec $3 $5) $8 }
+ | '__letrec' '{' rec_binds '}'
+ 'in' core_expr { UfLet (UfRec $3) $6 }
+
+ | con_or_primop '{' core_args '}' { UfCon $1 $3 }
+ | '__litlit' STRING atype { UfCon (UfLitLitCon $2 $3) [] }
+
+ | '__inline' core_expr { UfNote UfInlineCall $2 }
+ | '__coerce' atype core_expr { UfNote (UfCoerce $2) $3 }
+ | '__scc' core_expr { UfNote (UfSCC $1) $2 }
+ | fexpr { $1 }
+
+fexpr :: { UfExpr RdrName }
+fexpr : fexpr core_arg { UfApp $1 $2 }
+ | core_aexpr { $1 }
+
+core_arg :: { UfExpr RdrName }
+ : '__a' atype { UfType $2 }
+ | core_aexpr { $1 }
+
+core_args :: { [UfExpr RdrName] }
+ : { [] }
+ | core_arg core_args { $1 : $2 }
+
+core_aexpr :: { UfExpr RdrName } -- Atomic expressions
+core_aexpr : qvar_name { UfVar $1 }
+
+ | qdata_name { UfVar $1 }
+ -- This one means that e.g. "True" will parse as
+ -- (UfVar True_Id) rather than (UfCon True_Con []).
+ -- No big deal; it'll be inlined in a jiffy. I tried
+ -- parsing it to (Con con []) directly, but got bitten
+ -- when a real constructor Id showed up in an interface
+ -- file. As usual, a hack bites you in the end.
+ -- If you want to get a UfCon, then use the
+ -- curly-bracket notation (True {}).
+
+ | core_lit { UfCon (UfLitCon $1) [] }
+ | '(' core_expr ')' { $2 }
+ | '(' ')' { UfTuple (mkTupConRdrName 0) [] }
+ | '(' comma_exprs2 ')' { UfTuple (mkTupConRdrName (length $2)) $2 }
+ | '(#' core_expr '#)' { UfTuple (mkUbxTupConRdrName 1) [$2] }
+ | '(#' comma_exprs2 '#)' { UfTuple (mkUbxTupConRdrName (length $2)) $2 }
+
+comma_exprs2 :: { [UfExpr RdrName] } -- Two or more
+comma_exprs2 : core_expr ',' core_expr { [$1,$3] }
+ | core_expr ',' comma_exprs2 { $1 : $3 }
+
+con_or_primop :: { UfCon RdrName }
+con_or_primop : qdata_name { UfDataCon $1 }
+ | qvar_name { UfPrimOp $1 }
+ | '__ccall' ccall_string { let
+ (is_casm, may_gc) = $1
+ in
+ UfCCallOp $2 is_casm may_gc
+ }
+
+rec_binds :: { [(UfBinder RdrName, UfExpr RdrName)] }
+ : { [] }
+ | core_val_bndr '=' core_expr ';' rec_binds { ($1,$3) : $5 }
+
+core_alts :: { [UfAlt RdrName] }
+ : core_alt { [$1] }
+ | core_alt ';' core_alts { $1 : $3 }
+
+core_alt :: { UfAlt RdrName }
+core_alt : core_pat '->' core_expr { (fst $1, snd $1, $3) }
+
+core_pat :: { (UfCon RdrName, [RdrName]) }
+core_pat : core_lit { (UfLitCon $1, []) }
+ | '__litlit' STRING atype { (UfLitLitCon $2 $3, []) }
+ | qdata_name var_names { (UfDataCon $1, $2) }
+ | '(' comma_var_names ')' { (UfDataCon (mkTupConRdrName (length $2)), $2) }
+ | '(#' comma_var_names1 '#)' { (UfDataCon (mkUbxTupConRdrName (length $2)), $2) }
+ | '__DEFAULT' { (UfDefault, []) }
+ | '(' core_pat ')' { $2 }
+
+
+comma_var_names :: { [RdrName] } -- Zero, or two or more
+comma_var_names : { [] }
+ | var_name ',' comma_var_names1 { $1 : $3 }
+
+comma_var_names1 :: { [RdrName] } -- One or more
+comma_var_names1 : var_name { [$1] }
+ | var_name ',' comma_var_names1 { $1 : $3 }
+
+core_lit :: { Literal }
+core_lit : INTEGER { mkMachInt_safe $1 }
+ | CHAR { MachChar $1 }
+ | STRING { MachStr $1 }
+ | '__string' STRING { NoRepStr $2 (panic "NoRepStr type") }
+ | RATIONAL { MachDouble $1 }
+ | '__float' RATIONAL { MachFloat $2 }
+
+ | '__integer' INTEGER { NoRepInteger $2 (panic "NoRepInteger type")
+ -- The type checker will add the types
+ }
+
+ | '__rational' INTEGER INTEGER { NoRepRational ($2 % $3)
+ (panic "NoRepRational type")
+ -- The type checker will add the type
+ }
+
+ | '__addr' INTEGER { MachAddr $2 }
+
+core_bndr :: { UfBinder RdrName }
+core_bndr : core_val_bndr { $1 }
+ | core_tv_bndr { $1 }
+
+core_bndrs :: { [UfBinder RdrName] }
+core_bndrs : { [] }
+ | core_bndr core_bndrs { $1 : $2 }
+
+core_val_bndr :: { UfBinder RdrName }
+core_val_bndr : var_name '::' atype { UfValBinder $1 $3 }
+
+core_tv_bndr :: { UfBinder RdrName }
+core_tv_bndr : '__a' tv_name '::' akind { UfTyBinder $2 $4 }
+ | '__a' tv_name { UfTyBinder $2 boxedTypeKind }
+
+ccall_string :: { FAST_STRING }
+ : STRING { $1 }
+ | VARID { $1 }
+ | CONID { $1 }
+
+-------------------------------------------------------------------
+
+src_loc :: { SrcLoc }
+src_loc : {% getSrcLocIf }
+
+checkVersion :: { () }
+ : {-empty-} {% checkVersion Nothing }
+ | INTEGER {% checkVersion (Just (fromInteger $1)) }
+
+-------------------------------------------------------------------
+
+-- Haskell code
+{
-instdecls :: { [RdrNameInstDecl] }
-instdecls : { [] }
- | instd instdecls { $1 : $2 }
+data IfaceStuff = PIface ParsedIface
+ | PIdInfo [HsIdInfo RdrName]
+ | PType RdrNameHsType
-instd :: { RdrNameInstDecl }
-instd : INSTANCE type EQUAL var_name SEMI
- { InstDecl $2
- EmptyMonoBinds {- No bindings -}
- [] {- No user pragmas -}
- (Just $4) {- Dfun id -}
- mkIfaceSrcLoc
---------------------------------------------------------------------------
- }
+mkConDecl name (ex_tvs, ex_ctxt) details loc = ConDecl name ex_tvs ex_ctxt details loc
+}
projects / ghc-hetmet.git / blobdiff