import HsDecls ( HsIdInfo(..), HsStrictnessInfo(..) )
import HsTypes ( mkHsForAllTy )
import HsCore
-import Literal
-import BasicTypes ( IfaceFlavour(..), Fixity(..), FixityDirection(..), NewOrData(..), Version )
+import Const ( Literal(..), mkMachInt_safe )
+import BasicTypes ( IfaceFlavour(..), Fixity(..), FixityDirection(..),
+ NewOrData(..), Version
+ )
import HsPragmas ( noDataPragmas, noClassPragmas )
-import Kind ( Kind, mkArrowKind, mkBoxedTypeKind, mkTypeKind )
-import IdInfo ( ArgUsageInfo, FBTypeInfo, ArityInfo, exactArity )
-import PrimRep ( decodePrimRep )
+import Type ( Kind, mkArrowKind, boxedTypeKind, openTypeKind )
+import IdInfo ( ArityInfo, exactArity )
import Lex
import RnMonad ( ImportVersion, LocalVersion, ParsedIface(..), WhatsImported(..),
)
import Bag ( emptyBag, unitBag, snocBag )
import FiniteMap ( emptyFM, unitFM, addToFM, plusFM, bagToFM, FiniteMap )
-import Name ( OccName(..), isTCOcc, Provenance, SYN_IE(Module) )
+import Name ( OccName(..), isTCOcc, Provenance, Module,
+ mkTupNameStr, mkUbxTupNameStr
+ )
import SrcLoc ( SrcLoc )
import Maybes
import Outputable
+import GlaExts
}
%name parseIface
%lexer { lexIface } { ITeof }
%token
- INTERFACE { ITinterface }
- USAGES_PART { ITusages }
- EXPORTS_PART { ITexports }
- INSTANCE_MODULES_PART { ITinstance_modules }
- INSTANCES_PART { ITinstances }
- FIXITIES_PART { ITfixities }
- DECLARATIONS_PART { ITdeclarations }
- DATA { ITdata }
- TYPE { ITtype }
- NEWTYPE { ITnewtype }
- CLASS { ITclass }
- WHERE { ITwhere }
- INSTANCE { ITinstance }
- INFIXL { ITinfixl }
- INFIXR { ITinfixr }
- INFIX { ITinfix }
- FORALL { ITforall }
- BANG { ITbang }
- VBAR { ITvbar }
- DCOLON { ITdcolon }
- COMMA { ITcomma }
- DARROW { ITdarrow }
- 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 $$ }
- QCONSYM { ITqconsym $$ }
-
- STRICT_PART { ITstrict $$ }
- TYPE_PART { ITtysig _ _ }
- ARITY_PART { ITarity }
- UNFOLD_PART { ITunfold $$ }
- SPECIALISE { ITspecialise }
- BOTTOM { ITbottom }
- LAM { ITlam }
- BIGLAM { ITbiglam }
- CASE { ITcase }
- PRIM_CASE { ITprim_case }
- LET { ITlet }
- LETREC { ITletrec }
- IN { ITin }
- OF { ITof }
- COERCE { ITcoerce }
- ATSIGN { ITatsign }
- CCALL { ITccall $$ }
- SCC { ITscc $$ }
- INLINE_CALL { ITinline }
-
- CHAR { ITchar $$ }
- STRING { ITstring $$ }
- INTEGER { ITinteger $$ }
- RATIONAL { ITrational $$ }
-
- 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.
iface :: { ParsedIface }
-iface : INTERFACE CONID INTEGER checkVersion
- 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
- $6 -- Usages
- $7 -- Exports
- $5 -- Instance modules
- $8 -- Fixities
- $10 -- Decls
- $9 -- 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 opt_bang INTEGER DCOLON whats_imported SEMI
- { ($1, $2, fromInteger $3, $5) }
+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) }
whats_imported :: { WhatsImported OccName }
whats_imported : { Everything }
| 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 }
- | { [] }
-
-export_items :: { [ExportItem] }
-export_items : { [] }
- | opt_bang mod_name entities SEMI export_items { ($2,$1,$3) : $5 }
+exports_part : { [] }
+ | exports_part '__export' opt_bang mod_name entities ';'
+ { ($4,$3,$5) : $1 }
opt_bang :: { IfaceFlavour }
opt_bang : { HiFile }
- | BANG { HiBootFile }
+ | '!' { HiBootFile }
entities :: { [RdrAvailInfo] }
entities : { [] }
then AvailTC $1 [$1]
else Avail $1 }
| entity_occ stuff_inside { AvailTC $1 ($1:$2) }
- | entity_occ VBAR stuff_inside { AvailTC $1 $3 }
+ | entity_occ '|' stuff_inside { AvailTC $1 $3 }
stuff_inside :: { [OccName] }
-stuff_inside : OPAREN val_occs 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) }
-fixities_part :: { [(OccName,Fixity)] }
-fixities_part : { [] }
- | FIXITIES_PART fixes { $2 }
+mb_fix :: { Int }
+mb_fix : {-nothing-} { 9 }
+ | INTEGER { (fromInteger $1) }
-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
+ }
-version :: { Version }
-version : INTEGER { fromInteger $1 }
+--------------------------------------------------------------------------
-topdecl :: { RdrNameHsDecl }
-topdecl : src_loc TYPE tc_name tv_bndrs EQUAL type SEMI
+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 tc_name tv_bndrs constrs SEMI
- { TyD (TyData DataType $3 $4 $5 $6 Nothing noDataPragmas $1) }
- | src_loc NEWTYPE decl_context tc_name tv_bndrs newtype_constr SEMI
+ | 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 SEMI
- { ClD (mkClassDecl $3 $4 $5 $6 EmptyMonoBinds noClassPragmas $1) }
- | src_loc var_name TYPE_PART
- {
- case $3 of
- ITtysig sig idinfo_part -> -- Parse type and idinfo lazily
- let info =
- case idinfo_part of
- Nothing -> []
- Just s -> case parseIface s $1 of
- Succeeded (PIdInfo id_info) -> id_info
- other -> pprPanic "IdInfo parse failed"
- (ppr $2)
-
- tp = case parseIface sig $1 of
- Succeeded (PType tp) -> tp
- other -> pprPanic "Id type parse failed"
- (ppr $2)
- in
- SigD (IfaceSig $2 tp info $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 }
decl_context :: { RdrNameContext }
decl_context : { [] }
- | OCURLY context_list1 CCURLY DARROW { $2 }
-
-
-csigs :: { [RdrNameSig] }
-csigs : { [] }
- | WHERE OCURLY csigs1 CCURLY { $3 }
-
-csigs1 :: { [RdrNameSig] }
-csigs1 : csig { [$1] }
- | csig SEMI csigs1 { $1 : $3 }
+ | '{' context_list1 '}' '=>' { $2 }
-csig :: { RdrNameSig }
-csig : src_loc var_name DCOLON type { ClassOpSig $2 Nothing $4 $1 }
- | src_loc var_name EQUAL DCOLON type { ClassOpSig $2
- (Just (error "Un-filled-in default method"))
- $5 $1 }
----------------------------------------------------------------
-
constrs :: { [RdrNameConDecl] {- empty for handwritten abstract -} }
- : { [] }
- | EQUAL constrs1 { $2 }
+ : { [] }
+ | '=' constrs1 { $2 }
constrs1 :: { [RdrNameConDecl] }
constrs1 : constr { [$1] }
- | constr VBAR constrs1 { $1 : $3 }
+ | constr '|' constrs1 { $1 : $3 }
constr :: { RdrNameConDecl }
-constr : src_loc data_name batypes { ConDecl $2 [] (VanillaCon $3) $1 }
- | src_loc data_name OCURLY fields1 CCURLY { ConDecl $2 [] (RecCon $4) $1 }
+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 ()
newtype_constr :: { [RdrNameConDecl] {- Empty if handwritten abstract -} }
newtype_constr : { [] }
- | src_loc EQUAL data_name atype { [ConDecl $3 [] (NewCon $4) $1] }
+ | src_loc '=' ex_stuff data_name atype { [mkConDecl $4 $3 (NewCon $5) $1] }
+
+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 DARROW type { mkHsForAllTy $2 $3 $5 }
- | btype RARROW type { MonoFunTy $1 $3 }
- | btype { $1 }
+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 ',' context_list1 { $1 : $3 }
class :: { (RdrName, [RdrNameHsType]) }
-class : tc_name atypes { ($1, $2) }
+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 }
| btype atype { MonoTyApp $1 $2 }
atype :: { RdrNameHsType }
-atype : tc_name { MonoTyVar $1 }
+atype : qtc_name { MonoTyVar $1 }
| tv_name { MonoTyVar $1 }
- | OPAREN types2 CPAREN { MonoTupleTy dummyRdrTcName $2 }
- | OBRACK type CBRACK { MonoListTy dummyRdrTcName $2 }
- | OCURLY tc_name atypes 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 : { [] }
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_occs :: { [OccName] }
: val_occ { [$1] }
| val_occ val_occs { $1 : $2 }
+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) }
qvar_name :: { RdrName }
qvar_name : var_name { $1 }
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("[]")) }
qdata_name :: { RdrName }
-qdata_name : data_name { $1 }
+qdata_name : data_name { $1 }
| QCONID { lexVarQual $1 }
| QCONSYM { lexVarQual $1 }
| qdata_name qdata_names { $1 : $2 }
tc_name :: { RdrName }
-tc_name : tc_occ { Unqual $1 }
- | QCONID { lexTcQual $1 }
- | QCONSYM { lexTcQual $1 }
+tc_name : CONID { Unqual (TCOcc $1) }
+ | CONSYM { Unqual (TCOcc $1) }
+ | '(' '->' ')' { Unqual (TCOcc SLIT("->")) }
+ | '(' commas ')' { Unqual (TCOcc (snd (mkTupNameStr $2))) }
+ | '[' ']' { Unqual (TCOcc SLIT("[]")) }
-tc_names1 :: { [RdrName] }
- : tc_name { [$1] }
- | tc_name COMMA tc_names1 { $1 : $3 }
+qtc_name :: { RdrName }
+qtc_name : tc_name { $1 }
+ | QCONID { lexTcQual $1 }
+ | QCONSYM { lexTcQual $1 }
tv_name :: { RdrName }
tv_name : VARID { Unqual (TvOcc $1) }
| 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 { if $1 == SLIT("*") then
- mkBoxedTypeKind
+ boxedTypeKind
else if $1 == SLIT("**") then
- mkTypeKind
+ openTypeKind
else panic "ParseInterface: akind"
}
- | OPAREN kind CPAREN { $2 }
---------------------------------------------------------------------------
-
+ | '(' kind ')' { $2 }
-instances_part :: { [RdrNameInstDecl] }
-instances_part : INSTANCES_PART instdecls { $2 }
- | { [] }
-
-instdecls :: { [RdrNameInstDecl] }
-instdecls : { [] }
- | instd instdecls { $1 : $2 }
-
-instd :: { RdrNameInstDecl }
-instd : src_loc INSTANCE type EQUAL var_name SEMI
- { InstDecl $3
- EmptyMonoBinds {- No bindings -}
- [] {- No user pragmas -}
- (Just $5) {- Dfun id -}
- $1
- }
--------------------------------------------------------------------------
id_info :: { [HsIdInfo RdrName] }
-id_info : { [] }
- | id_info_item id_info { $1 : $2 }
+id_info : { [] }
+ | id_info_item id_info { $1 : $2 }
id_info_item :: { HsIdInfo RdrName }
-id_info_item : ARITY_PART arity_info { HsArity $2 }
- | strict_info { HsStrictness $1 }
- | BOTTOM { HsStrictness HsBottom }
- | UNFOLD_PART core_expr { HsUnfold $1 $2 }
- | SPECIALISE spec_tvs
- atypes EQUAL core_expr { HsSpecialise $2 $3 $5 }
+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 : OBRACK tv_bndrs CBRACK { $2 }
+spec_tvs : '[' tv_bndrs ']' { $2 }
arity_info :: { ArityInfo }
-arity_info : INTEGER { exactArity (fromInteger $1) }
+arity_info : INTEGER { exactArity (fromInteger $1) }
strict_info :: { HsStrictnessInfo RdrName }
-strict_info : STRICT_PART qvar_name OCURLY qdata_names CCURLY { HsStrictnessInfo $1 (Just ($2,$4)) }
- | STRICT_PART qvar_name { HsStrictnessInfo $1 (Just ($2,[])) }
- | STRICT_PART { HsStrictnessInfo $1 Nothing }
-
-core_expr :: { UfExpr RdrName }
- : LAM core_val_bndrs RARROW core_expr { foldr UfLam $4 $2 }
- | BIGLAM core_tv_bndrs RARROW core_expr { foldr UfLam $4 $2 }
- | CASE core_expr OF
- OCURLY alg_alts core_default CCURLY { UfCase $2 (UfAlgAlts $5 $6) }
- | PRIM_CASE core_expr OF
- OCURLY prim_alts core_default CCURLY { UfCase $2 (UfPrimAlts $5 $6) }
-
- | LET OCURLY core_val_bndr EQUAL core_expr CCURLY
- IN core_expr { UfLet (UfNonRec $3 $5) $8 }
- | LETREC OCURLY rec_binds CCURLY
- IN core_expr { UfLet (UfRec $3) $6 }
-
- | CCALL ccall_string
- OBRACK atype atypes CBRACK core_args { let
- (is_casm, may_gc) = $1
- in
- UfPrim (UfCCallOp $2 is_casm may_gc $5 $4)
- $7
- }
-
- | INLINE_CALL core_expr { UfNote UfInlineCall $2 }
- | COERCE atype core_expr { UfNote (UfCoerce $2) $3 }
- | SCC core_expr { UfNote (UfSCC $1) $2 }
- | fexpr { $1 }
+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 }
- | fexpr ATSIGN atype { UfApp $1 (UfTyArg $3) }
- | aexpr { $1 }
+ | core_aexpr { $1 }
+
+core_arg :: { UfExpr RdrName }
+ : '__a' atype { UfType $2 }
+ | core_aexpr { $1 }
-aexpr :: { UfExpr RdrName }
-aexpr : qvar_name { UfVar $1 }
- | qdata_name { UfVar $1 }
- | core_lit { UfLit $1 }
- | OPAREN core_expr CPAREN { $2 }
- | qdata_name OCURLY data_args CCURLY { UfCon $1 $3 }
+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 EQUAL core_expr SEMI rec_binds { ($1,$3) : $5 }
+ | core_val_bndr '=' core_expr ';' rec_binds { ($1,$3) : $5 }
-prim_alts :: { [(Literal,UfExpr RdrName)] }
- : { [] }
- | core_lit RARROW core_expr SEMI prim_alts { ($1,$3) : $5 }
+core_alts :: { [UfAlt RdrName] }
+ : core_alt { [$1] }
+ | core_alt ';' core_alts { $1 : $3 }
-alg_alts :: { [(RdrName, [RdrName], UfExpr RdrName)] }
- : { [] }
- | qdata_name var_names RARROW
- core_expr SEMI alg_alts { ($1,$2,$4) : $6 }
+core_alt :: { UfAlt RdrName }
+core_alt : core_pat '->' core_expr { (fst $1, snd $1, $3) }
-core_default :: { UfDefault RdrName }
- : { UfNoDefault }
- | var_name RARROW core_expr SEMI { UfBindDefault $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 }
-core_arg :: { UfArg RdrName }
- : qvar_name { UfVarArg $1 }
- | qdata_name { UfVarArg $1 }
- | core_lit { UfLitArg $1 }
-core_args :: { [UfArg RdrName] }
- : { [] }
- | core_arg core_args { $1 : $2 }
+comma_var_names :: { [RdrName] } -- Zero, or two or more
+comma_var_names : { [] }
+ | var_name ',' comma_var_names1 { $1 : $3 }
-data_args :: { [UfArg RdrName] }
- : { [] }
- | core_arg data_args { $1 : $2 }
- | ATSIGN atype data_args { UfTyArg $2 : $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_LIT STRING { NoRepStr $2 }
+ | '__string' STRING { NoRepStr $2 (panic "NoRepStr type") }
| RATIONAL { MachDouble $1 }
- | FLOAT_LIT RATIONAL { MachFloat $2 }
+ | '__float' RATIONAL { MachFloat $2 }
- | INTEGER_LIT INTEGER { NoRepInteger $2 (panic "NoRepInteger type")
+ | '__integer' INTEGER { NoRepInteger $2 (panic "NoRepInteger type")
-- The type checker will add the types
}
- | RATIONAL_LIT INTEGER INTEGER { NoRepRational ($2 % $3)
- (panic "NoRepRational type")
- -- The type checker will add the type
+ | '__rational' INTEGER INTEGER { NoRepRational ($2 % $3)
+ (panic "NoRepRational type")
+ -- The type checker will add the type
}
- | ADDR_LIT INTEGER { MachAddr $2 }
- | LIT_LIT prim_rep STRING { MachLitLit $3 (decodePrimRep $2) }
+ | '__addr' INTEGER { MachAddr $2 }
-core_val_bndr :: { UfBinder RdrName }
-core_val_bndr : var_name DCOLON atype { UfValBinder $1 $3 }
+core_bndr :: { UfBinder RdrName }
+core_bndr : core_val_bndr { $1 }
+ | core_tv_bndr { $1 }
-core_val_bndrs :: { [UfBinder RdrName] }
-core_val_bndrs : { [] }
- | core_val_bndr core_val_bndrs { $1 : $2 }
+core_bndrs :: { [UfBinder RdrName] }
+core_bndrs : { [] }
+ | core_bndr core_bndrs { $1 : $2 }
-core_tv_bndr :: { UfBinder RdrName }
-core_tv_bndr : tv_name DCOLON akind { UfTyBinder $1 $3 }
- | tv_name { UfTyBinder $1 mkBoxedTypeKind }
+core_val_bndr :: { UfBinder RdrName }
+core_val_bndr : var_name '::' atype { UfValBinder $1 $3 }
-core_tv_bndrs :: { [UfBinder RdrName] }
-core_tv_bndrs : { [] }
- | core_tv_bndr core_tv_bndrs { $1 : $2 }
+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 }
-prim_rep :: { Char }
- : VARID { head (_UNPK_ $1) }
- | CONID { head (_UNPK_ $1) }
-
-------------------------------------------------------------------
src_loc :: { SrcLoc }
| PIdInfo [HsIdInfo RdrName]
| PType RdrNameHsType
+mkConDecl name (ex_tvs, ex_ctxt) details loc = ConDecl name ex_tvs ex_ctxt details loc
}
projects / ghc-hetmet.git / blobdiff