+{- Notes about the syntax of interface files
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The header
+~~~~~~~~~~
+ interface "edison" M 4 6 2 ! 406 Module M, version 4, from package 'edison',
+ Fixities version 6, rules version 2
+ Interface syntax version 406
+ ! means M contains orphans
+
+Import declarations
+~~~~~~~~~~~~~~~~~~~
+ import Foo ; To compile M I used nothing from Foo, but it's
+ below me in the hierarchy
+
+ import Foo ! @ ; Ditto, but the ! means that Foo contains orphans
+ and the @ means that Foo is a boot interface
+
+ import Foo :: 3 ; To compile M I used everything from Foo, which has
+ module version 3
+
+ import Foo :: 3 2 6 a 1 b 3 c 7 ; To compile M I used Foo. It had
+ module version 3
+ fixity version 2
+ rules version 6
+ and some specific things besides.
+
+-}
+
+
{
-module ParseIface ( parseIface, IfaceStuff(..) ) where
+module ParseIface ( parseIface, parseType, parseRules, parseIdInfo ) where
#include "HsVersions.h"
import HsSyn -- quite a bit of stuff
import RdrHsSyn -- oodles of synonyms
-import HsDecls ( HsIdInfo(..), HsStrictnessInfo(..) )
-import HsTypes ( mkHsForAllTy )
+import HsTypes ( mkHsForAllTy, mkHsTupCon )
import HsCore
-import Literal
-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 Literal ( Literal(..), mkMachInt, mkMachInt64, mkMachWord, mkMachWord64 )
+import BasicTypes ( Fixity(..), FixityDirection(..), StrictnessMark(..),
+ NewOrData(..), Version, initialVersion, Boxity(..),
+ Activation(..)
+ )
+import CostCentre ( CostCentre(..), IsCafCC(..), IsDupdCC(..) )
+import Type ( Kind, mkArrowKind, liftedTypeKind, openTypeKind, usageTypeKind )
+import IdInfo ( InlinePragInfo(..) )
+import ForeignCall ( ForeignCall(..), CCallConv(..), CCallSpec(..), CCallTarget(..) )
import Lex
-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, SYN_IE(Module) )
+import RnMonad ( ParsedIface(..), ExportItem, IfaceDeprecs )
+import HscTypes ( WhetherHasOrphans, IsBootInterface, GenAvailInfo(..),
+ ImportVersion, WhatsImported(..),
+ RdrAvailInfo )
+
+import RdrName ( RdrName, mkRdrUnqual, mkIfaceOrig )
+import Name ( OccName )
+import OccName ( mkSysOccFS,
+ tcName, varName, dataName, clsName, tvName,
+ EncodedFS
+ )
+import Module ( ModuleName, PackageName, mkSysModuleNameFS, mkModule )
import SrcLoc ( SrcLoc )
-import Maybes
+import CmdLineOpts ( opt_InPackage, opt_IgnoreIfacePragmas )
import Outputable
+import Class ( DefMeth (..) )
+import GlaExts
+import FastString ( tailFS )
}
-%name parseIface
-%tokentype { IfaceToken }
-%monad { IfM }{ thenIf }{ returnIf }
-%lexer { lexIface } { ITeof }
+%name parseIface iface
+%name parseType type
+%name parseIdInfo id_info
+%name parseRules rules_and_deprecs
+
+%tokentype { Token }
+%monad { P }{ thenP }{ returnP }
+%lexer { lexer } { 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 }
- '!' { ITbang }
- '|' { ITvbar }
- '::' { ITdcolon }
- ',' { ITcomma }
- '=>' { ITdarrow }
- '..' { ITdotdot }
- '=' { ITequal }
- '{' { ITocurly }
- '[' { ITobrack }
- '(' { IToparen }
- '(#' { IToubxparen }
- '->' { ITrarrow }
- '}' { ITccurly }
- ']' { ITcbrack }
- ')' { ITcparen }
- '#)' { ITcubxparen }
- ';' { 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 $$ }
- DOUBLE { ITdouble $$ }
-
- 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 $$ }
+ 'as' { ITas }
+ 'case' { ITcase } -- Haskell keywords
+ 'class' { ITclass }
+ 'data' { ITdata }
+ 'default' { ITdefault }
+ 'deriving' { ITderiving }
+ 'do' { ITdo }
+ 'else' { ITelse }
+ 'hiding' { IThiding }
+ 'if' { ITif }
+ 'import' { ITimport }
+ 'in' { ITin }
+ 'infix' { ITinfix }
+ 'infixl' { ITinfixl }
+ 'infixr' { ITinfixr }
+ 'instance' { ITinstance }
+ 'let' { ITlet }
+ 'module' { ITmodule }
+ 'newtype' { ITnewtype }
+ 'of' { ITof }
+ 'qualified' { ITqualified }
+ 'then' { ITthen }
+ 'type' { ITtype }
+ 'where' { ITwhere }
+
+ 'forall' { ITforall } -- GHC extension keywords
+ 'foreign' { ITforeign }
+ 'export' { ITexport }
+ 'label' { ITlabel }
+ 'dynamic' { ITdynamic }
+ 'unsafe' { ITunsafe }
+ 'with' { ITwith }
+ 'stdcall' { ITstdcallconv }
+ 'ccall' { ITccallconv }
+
+ '__interface' { ITinterface } -- interface keywords
+ '__export' { IT__export }
+ '__depends' { ITdepends }
+ '__forall' { IT__forall }
+ '__letrec' { ITletrec }
+ '__coerce' { ITcoerce }
+ '__inline_me' { ITinlineMe }
+ '__inline_call'{ ITinlineCall }
+ '__DEFAULT' { ITdefaultbranch }
+ '__bot' { ITbottom }
+ '__integer' { ITinteger_lit }
+ '__float' { ITfloat_lit }
+ '__word' { ITword_lit }
+ '__int64' { ITint64_lit }
+ '__word64' { ITword64_lit }
+ '__rational' { ITrational_lit }
+ '__addr' { ITaddr_lit }
+ '__label' { ITlabel_lit }
+ '__litlit' { ITlit_lit }
+ '__string' { ITstring_lit }
+ '__ccall' { ITccall $$ }
+ '__scc' { ITscc }
+ '__sccC' { ITsccAllCafs }
+
+ '__u' { ITusage }
+
+ '__A' { ITarity }
+ '__P' { ITspecialise }
+ '__C' { ITnocaf }
+ '__U' { ITunfold }
+ '__S' { ITstrict $$ }
+ '__R' { ITrules }
+ '__M' { ITcprinfo }
+ '__D' { ITdeprecated }
+
+ '..' { ITdotdot } -- reserved symbols
+ '::' { ITdcolon }
+ '=' { ITequal }
+ '\\' { ITlam }
+ '|' { ITvbar }
+ '<-' { ITlarrow }
+ '->' { ITrarrow }
+ '@' { ITat }
+ '=>' { ITdarrow }
+ '-' { ITminus }
+ '!' { ITbang }
+
+ '{' { ITocurly } -- special symbols
+ '}' { ITccurly }
+ '{|' { ITocurlybar } -- special symbols
+ '|}' { ITccurlybar } -- special symbols
+ '[' { ITobrack }
+ ']' { ITcbrack }
+ '(' { IToparen }
+ ')' { ITcparen }
+ '(#' { IToubxparen }
+ '#)' { ITcubxparen }
+ ';' { ITsemi }
+ ',' { ITcomma }
+ '.' { ITdot }
+
+ VARID { ITvarid $$ } -- identifiers
+ CONID { ITconid $$ }
+ VARSYM { ITvarsym $$ }
+ CONSYM { ITconsym $$ }
+ QVARID { ITqvarid $$ }
+ QCONID { ITqconid $$ }
+ QVARSYM { ITqvarsym $$ }
+ QCONSYM { ITqconsym $$ }
+
+ IPVARID { ITipvarid $$ } -- GHC extension
+
+ PRAGMA { ITpragma $$ }
+
+ CHAR { ITchar $$ }
+ STRING { ITstring $$ }
+ INTEGER { ITinteger $$ }
+ RATIONAL { ITrational $$ }
+ CLITLIT { ITlitlit $$ }
+
+ 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 :: { ParsedIface }
+iface : '__interface' package mod_name
+ version sub_versions
+ orphans checkVersion 'where'
+ exports_part
+ import_part
+ fix_decl_part
+ instance_decl_part
+ decls_part
+ rules_and_deprecs_part
+ { ParsedIface {
+ pi_mod = mkModule $3 $2, -- Module itself
+ pi_vers = $4, -- Module version
+ pi_orphan = $6,
+ pi_exports = (fst $5, $9), -- Exports
+ pi_usages = $10, -- Usages
+ pi_fixity = $11, -- Fixies
+ pi_insts = $12, -- Local instances
+ pi_decls = $13, -- Decls
+ pi_rules = (snd $5,fst $14), -- Rules
+ pi_deprecs = snd $14 -- Deprecations
+ } }
+
+-- Versions for exports and rules (optional)
+sub_versions :: { (Version,Version) }
+ : '[' version version ']' { ($2,$3) }
+ | {- empty -} { (initialVersion, initialVersion) }
-iface_stuff :: { IfaceStuff }
-iface_stuff : iface { PIface $1 }
- | type { PType $1 }
- | id_info { PIdInfo $1 }
+--------------------------------------------------------------------------
+import_part :: { [ImportVersion OccName] }
+import_part : { [] }
+ | import_decl import_part { $1 : $2 }
+
+import_decl :: { ImportVersion OccName }
+import_decl : 'import' mod_name orphans is_boot whats_imported ';'
+ { ({-mkSysModuleNameFS-} $2, $3, $4, $5) }
-iface :: { ParsedIface }
-iface : INTERFACE CONID INTEGER checkVersion
- inst_modules_part
- usages_part
- exports_part fixities_part
- instances_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
- }
-
-
-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 '::' whats_imported ';'
- { ($1, $2, fromInteger $3, $5) }
+orphans :: { WhetherHasOrphans }
+orphans : { False }
+ | '!' { True }
-whats_imported :: { WhatsImported OccName }
-whats_imported : { Everything }
- | name_version_pair name_version_pairs { Specifically ($1:$2) }
+is_boot :: { IsBootInterface }
+is_boot : { False }
+ | '@' { True }
-versions_part :: { [LocalVersion OccName] }
-versions_part : VERSIONS_PART name_version_pairs { $2 }
- | { [] }
+whats_imported :: { WhatsImported OccName }
+whats_imported : { NothingAtAll }
+ | '::' version { Everything $2 }
+ | '::' version version version name_version_pairs { Specifically $2 (Just $3) $5 $4 }
+ | '::' version version name_version_pairs { Specifically $2 Nothing $4 $3 }
-name_version_pairs :: { [LocalVersion OccName] }
+name_version_pairs :: { [(OccName, Version)] }
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 :: { (OccName, Version) }
+name_version_pair : var_occ version { ($1, $2) }
+ | tc_occ version { ($1, $2) }
-exports_part :: { [ExportItem] }
-exports_part : EXPORTS_PART export_items { $2 }
- | { [] }
-export_items :: { [ExportItem] }
-export_items : { [] }
- | opt_bang mod_name entities ';' export_items { ($2,$1,$3) : $5 }
+--------------------------------------------------------------------------
-opt_bang :: { IfaceFlavour }
-opt_bang : { HiFile }
- | '!' { HiBootFile }
+exports_part :: { [ExportItem] }
+exports_part : { [] }
+ | '__export' mod_name entities ';'
+ exports_part { ({-mkSysModuleNameFS-} $2, $3) : $5 }
entities :: { [RdrAvailInfo] }
-entities : { [] }
- | entity entities { $1 : $2 }
+entities : { [] }
+ | entity entities { $1 : $2 }
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 }
+entity : var_occ { Avail $1 }
+ | tc_occ { AvailTC $1 [$1] }
+ | tc_occ '|' stuff_inside { AvailTC $1 $3 }
+ | tc_occ stuff_inside { AvailTC $1 ($1:$2) }
+ -- Note that the "main name" comes at the beginning
stuff_inside :: { [OccName] }
-stuff_inside : '(' val_occs1 ')' { $2
---------------------------------------------------------------------------
- }
-
-inst_modules_part :: { [Module] }
-inst_modules_part : { [] }
- | INSTANCE_MODULES_PART mod_list { $2 }
+stuff_inside : '{' val_occs '}' { $2 }
-mod_list :: { [Module] }
-mod_list : { [] }
- | mod_name mod_list { $1 : $2
---------------------------------------------------------------------------
- }
+val_occ :: { OccName }
+ : var_occ { $1 }
+ | data_occ { $1 }
-fixities_part :: { [(OccName,Fixity)] }
-fixities_part : { [] }
- | FIXITIES_PART fixes { $2 }
+val_occs :: { [OccName] }
+ : val_occ { [$1] }
+ | val_occ val_occs { $1 : $2 }
-fixes :: { [(OccName,Fixity)] }
-fixes : { [] }
- | fix fixes { $1 : $2 }
-fix :: { (OccName, Fixity) }
-fix : INFIXL INTEGER val_occ ';' { ($3, Fixity (fromInteger $2) InfixL) }
- | INFIXR INTEGER val_occ ';' { ($3, Fixity (fromInteger $2) InfixR) }
- | INFIX INTEGER val_occ ';' { ($3, Fixity (fromInteger $2) InfixN)
--------------------------------------------------------------------------
- }
-decls_part :: { [(Version, RdrNameHsDecl)] }
-decls_part : { [] }
- | DECLARATIONS_PART topdecls { $2 }
+fix_decl_part :: { [RdrNameFixitySig] }
+fix_decl_part : {- empty -} { [] }
+ | fix_decls ';' { $1 }
-topdecls :: { [(Version, RdrNameHsDecl)] }
-topdecls : { [] }
- | version topdecl topdecls { ($1,$2) : $3 }
+fix_decls :: { [RdrNameFixitySig] }
+fix_decls : { [] }
+ | fix_decl fix_decls { $1 : $2 }
-version :: { Version }
-version : INTEGER { fromInteger $1 }
-
-topdecl :: { RdrNameHsDecl }
-topdecl : src_loc TYPE tc_name tv_bndrs '=' type ';'
- { TyD (TySynonym $3 $4 $6 $1) }
- | src_loc DATA decl_context tc_name tv_bndrs constrs deriving ';'
- { TyD (TyData DataType $3 $4 $5 $6 $7 noDataPragmas $1) }
- | src_loc NEWTYPE decl_context tc_name tv_bndrs newtype_constr deriving ';'
- { TyD (TyData NewType $3 $4 $5 $6 $7 noDataPragmas $1) }
- | src_loc CLASS decl_context tc_name tv_bndrs csigs ';'
- { 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) }
-
-decl_context :: { RdrNameContext }
-decl_context : { [] }
- | '{' context_list1 '}' '=>' { $2 }
+fix_decl :: { RdrNameFixitySig }
+fix_decl : src_loc fixity prec var_or_data_name { FixitySig $4 (Fixity $3 $2) $1 }
+fixity :: { FixityDirection }
+fixity : 'infixl' { InfixL }
+ | 'infixr' { InfixR }
+ | 'infix' { InfixN }
+
+prec :: { Int }
+prec : INTEGER { fromInteger $1 }
+
+-----------------------------------------------------------------------------
csigs :: { [RdrNameSig] }
csigs : { [] }
- | WHERE '{' csigs1 '}' { $3 }
+ | 'where' '{' csigs1 '}' { $3 }
csigs1 :: { [RdrNameSig] }
-csigs1 : csig { [$1] }
+csigs1 : { [] }
| 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 }
-----------------------------------------------------------------
+csig : src_loc qvar_name '::' type { ClassOpSig $2 NoDefMeth $4 $1 }
+ | src_loc qvar_name ';' '::' type { ClassOpSig $2 GenDefMeth $5 $1 }
+ | src_loc qvar_name '=' '::' type { mkClassOpSigDM $2 $5 $1 }
+
+--------------------------------------------------------------------------
+
+instance_decl_part :: { [RdrNameInstDecl] }
+instance_decl_part : {- empty -} { [] }
+ | instance_decl_part inst_decl { $2 : $1 }
+
+inst_decl :: { RdrNameInstDecl }
+inst_decl : src_loc 'instance' type '=' qvar_name ';'
+ { InstDecl $3
+ EmptyMonoBinds {- No bindings -}
+ [] {- No user pragmas -}
+ (Just $5) {- Dfun id -}
+ $1
+ }
+
+--------------------------------------------------------------------------
+
+decls_part :: { [(Version, RdrNameTyClDecl)] }
+decls_part
+ : {- empty -} { [] }
+ | opt_version decl ';' decls_part { ($1,$2):$4 }
+
+decl :: { RdrNameTyClDecl }
+decl : src_loc qvar_name '::' type maybe_idinfo
+ { IfaceSig $2 $4 ($5 $2) $1 }
+ | src_loc 'type' qtc_name tv_bndrs '=' type
+ { TySynonym $3 $4 $6 $1 }
+ | src_loc 'foreign' 'type' qtc_name
+ { ForeignType $4 Nothing DNType $1 }
+ | src_loc 'data' opt_decl_context qtc_name tv_bndrs constrs
+ { mkTyData DataType $3 $4 $5 $6 (length $6) Nothing $1 }
+ | src_loc 'newtype' opt_decl_context qtc_name tv_bndrs newtype_constr
+ { mkTyData NewType $3 $4 $5 $6 1 Nothing $1 }
+ | src_loc 'class' opt_decl_context qtc_name tv_bndrs fds csigs
+ { mkClassDecl $3 $4 $5 $6 $7 Nothing $1 }
+
+maybe_idinfo :: { RdrName -> [HsIdInfo RdrName] }
+maybe_idinfo : {- empty -} { \_ -> [] }
+ | pragma { \x -> if opt_IgnoreIfacePragmas then []
+ else case $1 of
+ POk _ id_info -> id_info
+ PFailed err -> pprPanic "IdInfo parse failed"
+ (vcat [ppr x, err])
+ }
+ {-
+ If a signature decl is being loaded, and opt_IgnoreIfacePragmas is on,
+ we toss away unfolding information.
+
+ Also, if the signature is loaded from a module we're importing from source,
+ we do the same. This is to avoid situations when compiling a pair of mutually
+ recursive modules, peering at unfolding info in the interface file of the other,
+ e.g., you compile A, it looks at B's interface file and may as a result change
+ its interface file. Hence, B is recompiled, maybe changing its interface file,
+ which will the unfolding info used in A to become invalid. Simple way out is to
+ just ignore unfolding info.
+
+ [Jan 99: I junked the second test above. If we're importing from an hi-boot
+ file there isn't going to *be* any pragma info. The above comment
+ dates from a time where we picked up a .hi file first if it existed.]
+ -}
+
+pragma :: { ParseResult [HsIdInfo RdrName] }
+pragma : src_loc PRAGMA { parseIdInfo $2 PState{ bol = 0#, atbol = 1#,
+ context = [],
+ glasgow_exts = 1#,
+ loc = $1 }
+ }
+
+-----------------------------------------------------------------------------
+
+rules_and_deprecs_part :: { ([RdrNameRuleDecl], IfaceDeprecs) }
+rules_and_deprecs_part : {- empty -} { ([], Nothing) }
+ | rules_prag { case $1 of
+ POk _ rds -> rds
+ PFailed err -> pprPanic "Rules/Deprecations parse failed" err
+ }
+
+rules_prag :: { ParseResult ([RdrNameRuleDecl], IfaceDeprecs) }
+rules_prag : src_loc PRAGMA { parseRules $2 PState{ bol = 0#, atbol = 1#,
+ context = [],
+ glasgow_exts = 1#,
+ loc = $1 }
+ }
+
+rules_and_deprecs :: { ([RdrNameRuleDecl], IfaceDeprecs) }
+rules_and_deprecs : rule_prag deprec_prag { ($1, $2) }
+
+
+-----------------------------------------------------------------------------
+
+rule_prag :: { [RdrNameRuleDecl] }
+rule_prag : {- empty -} { [] }
+ | '__R' rules { $2 }
+
+rules :: { [RdrNameRuleDecl] }
+ : {- empty -} { [] }
+ | rule ';' rules { $1:$3 }
+
+rule :: { RdrNameRuleDecl }
+rule : src_loc STRING activation rule_forall qvar_name
+ core_args '=' core_expr { IfaceRule $2 $3 $4 $5 $6 $8 $1 }
+activation :: { Activation }
+activation : {- empty -} { AlwaysActive }
+ | INTEGER { ActiveAfter (fromInteger $1) }
+
+rule_forall :: { [UfBinder RdrName] }
+rule_forall : '__forall' '{' core_bndrs '}' { $3 }
+
+-----------------------------------------------------------------------------
+
+deprec_prag :: { IfaceDeprecs }
+deprec_prag : {- empty -} { Nothing }
+ | '__D' deprecs { Just $2 }
+
+deprecs :: { Either DeprecTxt [(RdrName,DeprecTxt)] }
+deprecs : STRING { Left $1 }
+ | deprec_list { Right $1 }
+
+deprec_list :: { [(RdrName,DeprecTxt)] }
+deprec_list : deprec { [$1] }
+ | deprec ';' deprec_list { $1 : $3 }
+
+deprec :: { (RdrName,DeprecTxt) }
+deprec : deprec_name STRING { ($1, $2) }
+
+deprec_name :: { RdrName }
+ : qvar_name { $1 }
+ | qtc_name { $1 }
+
+-----------------------------------------------------------------------------
+
+version :: { Version }
+version : INTEGER { fromInteger $1 }
+
+opt_version :: { Version }
+opt_version : version { $1 }
+ | {- empty -} { initialVersion }
+
+opt_decl_context :: { RdrNameContext }
+opt_decl_context : { [] }
+ | context '=>' { $1 }
+
+----------------------------------------------------------------------------
constrs :: { [RdrNameConDecl] {- empty for handwritten abstract -} }
- : { [] }
+ : { [] }
| '=' constrs1 { $2 }
constrs1 :: { [RdrNameConDecl] }
| constr '|' constrs1 { $1 : $3 }
constr :: { RdrNameConDecl }
-constr : src_loc data_name batypes { ConDecl $2 [] (VanillaCon $3) $1 }
- | src_loc data_name '{' fields1 '}' { ConDecl $2 [] (RecCon $4) $1 }
+constr : src_loc ex_stuff qdata_name batypes { mk_con_decl $3 $2 (VanillaCon $4) $1 }
+ | src_loc ex_stuff qdata_name '{' fields1 '}' { mk_con_decl $3 $2 (RecCon $5) $1 }
+ -- We use "data_fs" so as to include ()
-newtype_constr :: { [RdrNameConDecl] {- Empty if handwritten abstract -} }
-newtype_constr : { [] }
- | src_loc '=' data_name atype { [ConDecl $3 [] (NewCon $4) $1] }
+newtype_constr :: { [RdrNameConDecl] {- Not allowed to be empty -} }
+newtype_constr : src_loc '=' ex_stuff qdata_name atype { [mk_con_decl $4 $3 (VanillaCon [unbangedType $5]) $1] }
+ | src_loc '=' ex_stuff qdata_name '{' qvar_name '::' atype '}'
+ { [mk_con_decl $4 $3 (RecCon [([$6], unbangedType $8)]) $1] }
-deriving :: { Maybe [RdrName] }
- : { Nothing }
- | DERIVING '(' tc_names1 ')' { Just $3 }
+ex_stuff :: { ([HsTyVarBndr RdrName], RdrNameContext) }
+ex_stuff : { ([],[]) }
+ | '__forall' tv_bndrs opt_context '=>' { ($2,$3) }
batypes :: { [RdrNameBangType] }
batypes : { [] }
| batype batypes { $1 : $2 }
batype :: { RdrNameBangType }
-batype : atype { Unbanged $1 }
- | '!' atype { Banged $2 }
+batype : tatype { unbangedType $1 }
+ | '!' tatype { BangType MarkedStrict $2 }
+ | '!' '!' tatype { BangType MarkedUnboxed $3 }
fields1 :: { [([RdrName], RdrNameBangType)] }
fields1 : field { [$1] }
| field ',' fields1 { $1 : $3 }
field :: { ([RdrName], RdrNameBangType) }
-field : var_names1 '::' type { ($1, Unbanged $3) }
- | var_names1 '::' '!' type { ($1, Banged $4) }
+field : qvar_names1 '::' ttype { ($1, unbangedType $3) }
+ | qvar_names1 '::' '!' ttype { ($1, BangType MarkedStrict $4) }
+ | qvar_names1 '::' '!' '!' ttype { ($1, BangType MarkedUnboxed $5) }
+
--------------------------------------------------------------------------
type :: { RdrNameHsType }
-type : FORALL forall context '=>' type { mkHsForAllTy $2 $3 $5 }
- | btype '->' type { MonoFunTy $1 $3 }
- | btype { $1 }
+type : '__forall' tv_bndrs
+ opt_context '=>' type { mkHsForAllTy (Just $2) $3 $5 }
+ | btype '->' type { HsFunTy $1 $3 }
+ | btype { $1 }
-forall :: { [HsTyVar RdrName] }
-forall : '[' tv_bndrs ']' { $2 }
+opt_context :: { RdrNameContext }
+opt_context : { [] }
+ | context { $1 }
context :: { RdrNameContext }
-context : { [] }
- | '{' context_list1 '}' { $2 }
+context : '(' context_list1 ')' { $2 }
+ | '{' context_list1 '}' { $2 } -- Backward compatibility
context_list1 :: { RdrNameContext }
context_list1 : class { [$1] }
| class ',' context_list1 { $1 : $3 }
-class :: { (RdrName, [RdrNameHsType]) }
-class : tc_name atypes { ($1, $2) }
+class :: { HsPred RdrName }
+class : qcls_name atypes { (HsClassP $1 $2) }
+ | ipvar_name '::' type { (HsIParam $1 $3) }
+
+types0 :: { [RdrNameHsType] {- Zero or more -} }
+types0 : {- empty -} { [ ] }
+ | type { [ $1 ] }
+ | types2 { $1 }
types2 :: { [RdrNameHsType] {- Two or more -} }
types2 : type ',' type { [$1,$3] }
btype :: { RdrNameHsType }
btype : atype { $1 }
- | btype atype { MonoTyApp $1 $2 }
+ | btype atype { HsAppTy $1 $2 }
+ | '__u' atype atype { HsUsageTy $2 $3 }
atype :: { RdrNameHsType }
-atype : tc_name { MonoTyVar $1 }
- | tv_name { MonoTyVar $1 }
- | '(' types2 ')' { MonoTupleTy $2 True{-boxed-} }
- | '(#' types2 '#)' { MonoTupleTy $2 False{-unboxed-} }
- | '[' type ']' { MonoListTy $2 }
- | '{' tc_name atypes '}' { MonoDictTy $2 $3 }
+atype : qtc_name { HsTyVar $1 }
+ | tv_name { HsTyVar $1 }
+ | '.' { hsUsOnce }
+ | '!' { hsUsMany }
+ | '(' ')' { HsTupleTy (mkHsTupCon tcName Boxed []) [] }
+ | '(' types2 ')' { HsTupleTy (mkHsTupCon tcName Boxed $2) $2 }
+ | '(#' types0 '#)' { HsTupleTy (mkHsTupCon tcName Unboxed $2) $2 }
+ | '[' type ']' { HsListTy $2 }
+ | '{' qcls_name atypes '}' { mkHsDictTy $2 $3 }
+ | '{' ipvar_name '::' type '}' { mkHsIParamTy $2 $4 }
| '(' type ')' { $2 }
atypes :: { [RdrNameHsType] {- Zero or more -} }
atypes : { [] }
| atype atypes { $1 : $2 }
----------------------------------------------------------------------
-
-mod_name :: { Module }
- : CONID { $1 }
-
-var_occ :: { OccName }
-var_occ : VARID { VarOcc $1 }
- | VARSYM { VarOcc $1 }
- | '!' { VarOcc SLIT("!") {-sigh, double-sigh-} }
-
-tc_occ :: { OccName }
-tc_occ : CONID { TCOcc $1 }
- | CONSYM { TCOcc $1 }
- | '(' '->' ')' { TCOcc SLIT("->") }
-
-entity_occ :: { OccName }
-entity_occ : var_occ { $1 }
- | tc_occ { $1 }
- | '->' { TCOcc SLIT("->") {- Allow un-paren'd arrow -} }
-
-val_occ :: { OccName }
-val_occ : var_occ { $1 }
- | CONID { VarOcc $1 }
- | CONSYM { VarOcc $1 }
+--------------------------------------------------------------------------
-val_occs1 :: { [OccName] }
- : val_occ { [$1] }
- | val_occ val_occs1 { $1 : $2 }
+-- versions of type/btype/atype that cant begin with '!' (or '.')
+-- for use where the kind is definitely known NOT to be '$'
+
+ttype :: { RdrNameHsType }
+ttype : '__forall' tv_bndrs
+ opt_context '=>' type { mkHsForAllTy (Just $2) $3 $5 }
+ | tbtype '->' type { HsFunTy $1 $3 }
+ | tbtype { $1 }
+
+tbtype :: { RdrNameHsType }
+tbtype : tatype { $1 }
+ | tbtype atype { HsAppTy $1 $2 }
+ | '__u' atype atype { HsUsageTy $2 $3 }
+
+tatype :: { RdrNameHsType }
+tatype : qtc_name { HsTyVar $1 }
+ | tv_name { HsTyVar $1 }
+ | '(' ')' { HsTupleTy (mkHsTupCon tcName Boxed []) [] }
+ | '(' types2 ')' { HsTupleTy (mkHsTupCon tcName Boxed $2) $2 }
+ | '(#' types0 '#)' { HsTupleTy (mkHsTupCon tcName Unboxed $2) $2 }
+ | '[' type ']' { HsListTy $2 }
+ | '{' qcls_name atypes '}' { mkHsDictTy $2 $3 }
+ | '{' ipvar_name '::' type '}' { mkHsIParamTy $2 $4 }
+ | '(' type ')' { $2 }
+---------------------------------------------------------------------
+package :: { PackageName }
+ : STRING { $1 }
+ | {- empty -} { opt_InPackage } -- Useful for .hi-boot files,
+ -- which can omit the package Id
+ -- Module loops are always within a package
+
+mod_name :: { ModuleName }
+ : CONID { mkSysModuleNameFS $1 }
+
+
+---------------------------------------------------
+var_fs :: { EncodedFS }
+ : VARID { $1 }
+ | 'as' { SLIT("as") }
+ | 'qualified' { SLIT("qualified") }
+ | 'hiding' { SLIT("hiding") }
+ | 'forall' { SLIT("forall") }
+ | 'foreign' { SLIT("foreign") }
+ | 'export' { SLIT("export") }
+ | 'label' { SLIT("label") }
+ | 'dynamic' { SLIT("dynamic") }
+ | 'unsafe' { SLIT("unsafe") }
+ | 'with' { SLIT("with") }
+ | 'ccall' { SLIT("ccall") }
+ | 'stdcall' { SLIT("stdcall") }
+
+qvar_fs :: { (EncodedFS, EncodedFS) }
+ : QVARID { $1 }
+ | QVARSYM { $1 }
+
+var_occ :: { OccName }
+ : var_fs { mkSysOccFS varName $1 }
var_name :: { RdrName }
-var_name : var_occ { Unqual $1 }
+var_name : var_occ { mkRdrUnqual $1 }
qvar_name :: { RdrName }
qvar_name : var_name { $1 }
- | QVARID { lexVarQual $1 }
- | QVARSYM { lexVarQual $1 }
+ | qvar_fs { mkIfaceOrig varName $1 }
+
+ipvar_name :: { RdrName }
+ : IPVARID { mkRdrUnqual (mkSysOccFS varName (tailFS $1)) }
+
+qvar_names1 :: { [RdrName] }
+qvar_names1 : qvar_name { [$1] }
+ | qvar_name qvar_names1 { $1 : $2 }
var_names :: { [RdrName] }
var_names : { [] }
var_names1 :: { [RdrName] }
var_names1 : var_name var_names { $1 : $2 }
+---------------------------------------------------
+-- For some bizarre reason,
+-- (,,,) is dealt with by the parser
+-- Foo.(,,,) is dealt with by the lexer
+-- Sigh
+
+data_fs :: { EncodedFS }
+ : CONID { $1 }
+ | CONSYM { $1 }
+
+qdata_fs :: { (EncodedFS, EncodedFS) }
+ : QCONID { $1 }
+ | QCONSYM { $1 }
+
+data_occ :: { OccName }
+ : data_fs { mkSysOccFS dataName $1 }
+
data_name :: { RdrName }
-data_name : CONID { Unqual (VarOcc $1) }
- | CONSYM { Unqual (VarOcc $1) }
+ : data_occ { mkRdrUnqual $1 }
qdata_name :: { RdrName }
-qdata_name : data_name { $1 }
- | QCONID { lexVarQual $1 }
- | QCONSYM { lexVarQual $1 }
+qdata_name : data_name { $1 }
+ | qdata_fs { mkIfaceOrig dataName $1 }
-qdata_names :: { [RdrName] }
-qdata_names : { [] }
- | qdata_name qdata_names { $1 : $2 }
+var_or_data_name :: { RdrName }
+ : qvar_name { $1 }
+ | qdata_name { $1 }
+
+---------------------------------------------------
+tc_occ :: { OccName }
+ : data_fs { mkSysOccFS tcName $1 }
tc_name :: { RdrName }
-tc_name : tc_occ { Unqual $1 }
- | QCONID { lexTcQual $1 }
- | QCONSYM { lexTcQual $1 }
+ : tc_occ { mkRdrUnqual $1 }
-tc_names1 :: { [RdrName] }
- : tc_name { [$1] }
- | tc_name ',' tc_names1 { $1 : $3 }
+qtc_name :: { RdrName }
+ : tc_name { $1 }
+ | qdata_fs { mkIfaceOrig tcName $1 }
+---------------------------------------------------
+cls_name :: { RdrName }
+ : data_fs { mkRdrUnqual (mkSysOccFS clsName $1) }
+
+qcls_name :: { RdrName }
+ : cls_name { $1 }
+ | qdata_fs { mkIfaceOrig clsName $1 }
+
+---------------------------------------------------
tv_name :: { RdrName }
-tv_name : VARID { Unqual (TvOcc $1) }
- | VARSYM { Unqual (TvOcc $1) {- Allow t2 as a tyvar -} }
+ : var_fs { mkRdrUnqual (mkSysOccFS tvName $1) }
-tv_names :: { [RdrName] }
- : { [] }
- | tv_name tv_names { $1 : $2 }
+tv_bndr :: { HsTyVarBndr RdrName }
+ : tv_name '::' akind { IfaceTyVar $1 $3 }
+ | tv_name { IfaceTyVar $1 liftedTypeKind }
-tv_bndr :: { HsTyVar RdrName }
-tv_bndr : tv_name '::' akind { IfaceTyVar $1 $3 }
- | tv_name { UserTyVar $1 }
+tv_bndrs :: { [HsTyVarBndr RdrName] }
+ : tv_bndrs1 { $1 }
+ | '[' tv_bndrs1 ']' { $2 } -- Backward compatibility
-tv_bndrs :: { [HsTyVar RdrName] }
+tv_bndrs1 :: { [HsTyVarBndr RdrName] }
: { [] }
- | tv_bndr tv_bndrs { $1 : $2 }
+ | tv_bndr tv_bndrs1 { $1 : $2 }
+
+---------------------------------------------------
+fds :: { [([RdrName], [RdrName])] }
+ : {- empty -} { [] }
+ | '|' fds1 { reverse $2 }
+fds1 :: { [([RdrName], [RdrName])] }
+ : fds1 ',' fd { $3 : $1 }
+ | fd { [$1] }
+
+fd :: { ([RdrName], [RdrName]) }
+ : varids0 '->' varids0 { (reverse $1, reverse $3) }
+
+varids0 :: { [RdrName] }
+ : {- empty -} { [] }
+ | varids0 tv_name { $2 : $1 }
+
+---------------------------------------------------
kind :: { Kind }
: akind { $1 }
| akind '->' kind { mkArrowKind $1 $3 }
akind :: { Kind }
: VARSYM { if $1 == SLIT("*") then
- mkBoxedTypeKind
- else if $1 == SLIT("**") then
- mkTypeKind
- else panic "ParseInterface: akind"
+ liftedTypeKind
+ else if $1 == SLIT("?") then
+ openTypeKind
+ else if $1 == SLIT("\36") then
+ usageTypeKind -- dollar
+ else panic "ParseInterface: akind"
}
| '(' 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 '=' var_name ';'
- { 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_item { [$1] }
+ | 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 '=' core_expr { HsSpecialise $2 $3 $5 }
+ : '__A' INTEGER { HsArity (fromInteger $2) }
+ | '__U' inline_prag core_expr { HsUnfold $2 $3 }
+ | '__S' { HsStrictness $1 }
+ | '__C' { HsNoCafRefs }
+ | '__P' qvar_name INTEGER { HsWorker $2 (fromInteger $3) }
+inline_prag :: { InlinePragInfo }
+ : {- empty -} { AlwaysActive }
+ | '[' INTEGER ']' { ActiveAfter (fromInteger $2) }
-spec_tvs :: { [HsTyVar RdrName] }
-spec_tvs : '[' tv_bndrs ']' { $2 }
-
+-------------------------------------------------------
+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 }
-arity_info :: { ArityInfo }
-arity_info : INTEGER { exactArity (fromInteger $1) }
+ | 'let' '{' core_val_bndr '=' core_expr
+ '}' 'in' core_expr { UfLet (UfNonRec $3 $5) $8 }
+ | '__letrec' '{' rec_binds '}'
+ 'in' core_expr { UfLet (UfRec $3) $6 }
-strict_info :: { HsStrictnessInfo RdrName }
-strict_info : STRICT_PART qvar_name '{' qdata_names '}' { HsStrictnessInfo $1 (Just ($2,$4)) }
- | STRICT_PART qvar_name { HsStrictnessInfo $1 (Just ($2,[])) }
- | STRICT_PART { HsStrictnessInfo $1 Nothing }
+ | '__litlit' STRING atype { UfLitLit $2 $3 }
-core_expr :: { UfExpr RdrName }
-core_expr : qvar_name { UfVar $1 }
- | qdata_name { UfVar $1 }
- | core_lit { UfLit $1 }
- | '(' core_expr ')' { $2 }
- | qdata_name '{' data_args '}' { UfCon $1 $3 }
-
- | core_expr ATSIGN atype { UfApp $1 (UfTyArg $3) }
- | core_expr core_arg { UfApp $1 $2 }
- | LAM core_val_bndrs '->' core_expr { foldr UfLam $4 $2 }
- | BIGLAM core_tv_bndrs '->' core_expr { foldr UfLam $4 $2 }
-
- | CASE core_expr OF
- '{' alg_alts core_default '}' { UfCase $2 (UfAlgAlts $5 $6) }
- | PRIM_CASE core_expr OF
- '{' prim_alts core_default '}' { UfCase $2 (UfPrimAlts $5 $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 }
-
- | CCALL ccall_string
- '[' atype atypes ']' 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 }
-rec_binds :: { [(UfBinder RdrName, UfExpr RdrName)] }
- : { [] }
- | core_val_bndr '=' core_expr ';' rec_binds { ($1,$3) : $5 }
+fexpr :: { UfExpr RdrName }
+fexpr : fexpr core_arg { UfApp $1 $2 }
+ | scc core_aexpr { UfNote (UfSCC $1) $2 }
+ | '__inline_me' core_aexpr { UfNote UfInlineMe $2 }
+ | '__inline_call' core_aexpr { UfNote UfInlineCall $2 }
+ | '__coerce' atype core_aexpr { UfNote (UfCoerce $2) $3 }
+ | core_aexpr { $1 }
+
+core_arg :: { UfExpr RdrName }
+ : '@' atype { UfType $2 }
+ | core_aexpr { $1 }
-prim_alts :: { [(Literal,UfExpr RdrName)] }
+core_args :: { [UfExpr RdrName] }
: { [] }
- | core_lit '->' core_expr ';' prim_alts { ($1,$3) : $5 }
+ | core_arg core_args { $1 : $2 }
-alg_alts :: { [(RdrName, [RdrName], UfExpr RdrName)] }
- : { [] }
- | qdata_name var_names '->'
- core_expr ';' alg_alts { ($1,$2,$4) : $6 }
+core_aexpr :: { UfExpr RdrName } -- Atomic expressions
+core_aexpr : qvar_name { UfVar $1 }
+ | qdata_name { UfVar $1 }
+
+ | core_lit { UfLit $1 }
+ | '(' core_expr ')' { $2 }
-core_default :: { UfDefault RdrName }
- : { UfNoDefault }
- | var_name '->' core_expr ';' { UfBindDefault $1 $3 }
+ | '(' ')' { UfTuple (mkHsTupCon dataName Boxed []) [] }
+ | '(' comma_exprs2 ')' { UfTuple (mkHsTupCon dataName Boxed $2) $2 }
+ | '(#' comma_exprs0 '#)' { UfTuple (mkHsTupCon dataName Unboxed $2) $2 }
-core_arg :: { UfArg RdrName }
- : qvar_name { UfVarArg $1 }
- | qdata_name { UfVarArg $1 }
- | core_lit { UfLitArg $1 }
+ | '{' '__ccall' ccall_string type '}'
+ { let
+ (is_dyn, is_casm, may_gc) = $2
-core_args :: { [UfArg RdrName] }
+ target | is_dyn = DynamicTarget
+ | is_casm = CasmTarget $3
+ | otherwise = StaticTarget $3
+
+ ccall = CCallSpec target CCallConv may_gc
+ in
+ UfFCall (CCall ccall) $4
+ }
+
+
+comma_exprs0 :: { [UfExpr RdrName] } -- Zero or more
+comma_exprs0 : {- empty -} { [ ] }
+ | core_expr { [ $1 ] }
+ | comma_exprs2 { $1 }
+
+comma_exprs2 :: { [UfExpr RdrName] } -- Two or more
+comma_exprs2 : core_expr ',' core_expr { [$1,$3] }
+ | core_expr ',' comma_exprs2 { $1 : $3 }
+
+rec_binds :: { [(UfBinder RdrName, UfExpr RdrName)] }
: { [] }
- | core_arg core_args { $1 : $2 }
+ | core_val_bndr '=' core_expr ';' rec_binds { ($1,$3) : $5 }
-data_args :: { [UfArg RdrName] }
+core_alts :: { [UfAlt RdrName] }
: { [] }
- | ATSIGN atype data_args { UfTyArg $2 : $3 }
- | core_arg data_args { $1 : $2 }
+ | core_alt ';' core_alts { $1 : $3 }
+
+core_alt :: { UfAlt RdrName }
+core_alt : core_pat '->' core_expr { (fst $1, snd $1, $3) }
+
+core_pat :: { (UfConAlt RdrName, [RdrName]) }
+core_pat : core_lit { (UfLitAlt $1, []) }
+ | '__litlit' STRING atype { (UfLitLitAlt $2 $3, []) }
+ | qdata_name core_pat_names { (UfDataAlt $1, $2) }
+ | '(' ')' { (UfTupleAlt (mkHsTupCon dataName Boxed []), []) }
+ | '(' comma_var_names1 ')' { (UfTupleAlt (mkHsTupCon dataName Boxed $2), $2) }
+ | '(#' comma_var_names1 '#)' { (UfTupleAlt (mkHsTupCon dataName Unboxed $2), $2) }
+ | '__DEFAULT' { (UfDefault, []) }
+ | '(' core_pat ')' { $2 }
+
+core_pat_names :: { [RdrName] }
+core_pat_names : { [] }
+ | core_pat_name core_pat_names { $1 : $2 }
+
+-- Tyvar names and variable names live in different name spaces
+-- so they need to be signalled separately. But we don't record
+-- types or kinds in a pattern; we work that out from the type
+-- of the case scrutinee
+core_pat_name :: { RdrName }
+core_pat_name : var_name { $1 }
+ | '@' tv_name { $2 }
+
+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 { MachInt $1 True }
+core_lit : integer { mkMachInt $1 }
| CHAR { MachChar $1 }
| STRING { MachStr $1 }
- | STRING_LIT STRING { NoRepStr $2 }
- | DOUBLE { MachDouble (toRational $1) }
- | FLOAT_LIT DOUBLE { MachFloat (toRational $2) }
-
- | INTEGER_LIT 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
- }
-
- | ADDR_LIT INTEGER { MachAddr $2 }
- | LIT_LIT prim_rep STRING { MachLitLit $3 (decodePrimRep $2) }
+ | rational { MachDouble $1 }
+ | '__word' integer { mkMachWord $2 }
+ | '__word64' integer { mkMachWord64 $2 }
+ | '__int64' integer { mkMachInt64 $2 }
+ | '__float' rational { MachFloat $2 }
+ | '__addr' integer { MachAddr $2 }
+ | '__label' STRING { MachLabel $2 }
+
+integer :: { Integer }
+ : INTEGER { $1 }
+ | '-' INTEGER { (-$2) }
+
+rational :: { Rational }
+ : RATIONAL { $1 }
+ | '-' RATIONAL { (-$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_val_bndrs :: { [UfBinder RdrName] }
-core_val_bndrs : { [] }
- | core_val_bndr core_val_bndrs { $1 : $2 }
-
core_tv_bndr :: { UfBinder RdrName }
-core_tv_bndr : tv_name '::' akind { UfTyBinder $1 $3 }
- | tv_name { UfTyBinder $1 mkBoxedTypeKind }
-
-core_tv_bndrs :: { [UfBinder RdrName] }
-core_tv_bndrs : { [] }
- | core_tv_bndr core_tv_bndrs { $1 : $2 }
+core_tv_bndr : '@' tv_name '::' akind { UfTyBinder $2 $4 }
+ | '@' tv_name { UfTyBinder $2 liftedTypeKind }
ccall_string :: { FAST_STRING }
: STRING { $1 }
+ | CLITLIT { $1 }
| VARID { $1 }
| CONID { $1 }
-prim_rep :: { Char }
- : VARID { head (_UNPK_ $1) }
- | CONID { head (_UNPK_ $1) }
+------------------------------------------------------------------------
+scc :: { CostCentre }
+ : '__sccC' '{' mod_name '}' { AllCafsCC $3 }
+ | '__scc' '{' cc_name mod_name cc_dup cc_caf '}'
+ { NormalCC { cc_name = $3, cc_mod = $4,
+ cc_is_dupd = $5, cc_is_caf = $6 } }
+
+cc_name :: { EncodedFS }
+ : CONID { $1 }
+ | var_fs { $1 }
+
+cc_dup :: { IsDupdCC }
+cc_dup : { OriginalCC }
+ | '!' { DupdCC }
+
+cc_caf :: { IsCafCC }
+ : { NotCafCC }
+ | '__C' { CafCC }
-------------------------------------------------------------------
src_loc :: { SrcLoc }
-src_loc : {% getSrcLocIf }
+src_loc : {% getSrcLocP }
+-- Check the project version: this makes sure
+-- that the project version (e.g. 407) in the interface
+-- file is the same as that for the compiler that's reading it
checkVersion :: { () }
: {-empty-} {% checkVersion Nothing }
| INTEGER {% checkVersion (Just (fromInteger $1)) }
-- Haskell code
{
+happyError :: P a
+happyError buf PState{ loc = loc } = PFailed (ifaceParseErr buf loc)
-data IfaceStuff = PIface ParsedIface
- | PIdInfo [HsIdInfo RdrName]
- | PType RdrNameHsType
-
+mk_con_decl name (ex_tvs, ex_ctxt) details loc = mkConDecl name ex_tvs ex_ctxt details loc
}
projects / ghc-hetmet.git / blobdiff