{
-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 HsTypes ( mkHsForAllTy, mkHsUsForAllTy, mkHsTupCon )
+import HsTypes ( mkHsForAllTy, mkHsTupCon )
import HsCore
-import Demand ( mkStrictnessInfo )
import Literal ( Literal(..), mkMachInt, mkMachInt64, mkMachWord, mkMachWord64 )
-import BasicTypes ( Fixity(..), FixityDirection(..),
- NewOrData(..), Version, initialVersion, Boxity(..)
+import BasicTypes ( Fixity(..), FixityDirection(..), StrictnessMark(..),
+ NewOrData(..), Version, initialVersion, Boxity(..),
+ Activation(..)
)
import CostCentre ( CostCentre(..), IsCafCC(..), IsDupdCC(..) )
-import CallConv ( cCallConv )
-import Type ( Kind, mkArrowKind, boxedTypeKind, openTypeKind )
-import IdInfo ( exactArity, InlinePragInfo(..) )
-import PrimOp ( CCall(..), CCallTarget(..) )
+import Type ( Kind, mkArrowKind, liftedTypeKind, openTypeKind, usageTypeKind )
+import IdInfo ( InlinePragInfo(..) )
+import ForeignCall ( ForeignCall(..), CCallConv(..), CCallSpec(..), CCallTarget(..) )
import Lex
import RnMonad ( ParsedIface(..), ExportItem, IfaceDeprecs )
ImportVersion, WhatsImported(..),
RdrAvailInfo )
-import RdrName ( RdrName, mkRdrIfaceUnqual, mkIfaceOrig )
+import RdrName ( RdrName, mkRdrUnqual, mkIfaceOrig )
import Name ( OccName )
import OccName ( mkSysOccFS,
- tcName, varName, ipName, dataName, clsName, tvName, uvName,
+ tcName, varName, dataName, clsName, tvName,
EncodedFS
)
import Module ( ModuleName, PackageName, mkSysModuleNameFS, mkModule )
import SrcLoc ( SrcLoc )
import CmdLineOpts ( opt_InPackage, opt_IgnoreIfacePragmas )
import Outputable
-import List ( insert )
import Class ( DefMeth (..) )
import GlaExts
import FastString ( tailFS )
}
-%name parseIface
+%name parseIface iface
+%name parseType type
+%name parseIdInfo id_info
+%name parseRules rules_and_deprecs
+
%tokentype { Token }
%monad { P }{ thenP }{ returnP }
%lexer { lexer } { ITeof }
'__sccC' { ITsccAllCafs }
'__u' { ITusage }
- '__fuall' { ITfuall }
'__A' { ITarity }
'__P' { ITspecialise }
'__C' { ITnocaf }
- '__U' { ITunfold $$ }
+ '__U' { ITunfold }
'__S' { ITstrict $$ }
'__R' { ITrules }
'__M' { ITcprinfo }
'<-' { ITlarrow }
'->' { ITrarrow }
'@' { ITat }
- '~' { ITtilde }
'=>' { ITdarrow }
'-' { ITminus }
'!' { ITbang }
- '/\\' { ITbiglam } -- GHC-extension symbols
-
'{' { ITocurly } -- special symbols
'}' { ITccurly }
'{|' { ITocurlybar } -- special symbols
'#)' { ITcubxparen }
';' { ITsemi }
',' { ITcomma }
+ '.' { ITdot }
VARID { ITvarid $$ } -- identifiers
CONID { ITconid $$ }
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 }
- | rules_and_deprecs { PRulesAndDeprecs $1 }
-
iface :: { ParsedIface }
iface : '__interface' package mod_name
version sub_versions
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 :: { [(OccName, Version)] }
name_version_pairs : { [] }
entity : var_occ { Avail $1 }
| tc_occ { AvailTC $1 [$1] }
| tc_occ '|' stuff_inside { AvailTC $1 $3 }
- | tc_occ stuff_inside { AvailTC $1 (insert $1 $2) }
- -- The 'insert' is important. The stuff_inside is sorted, and
- -- insert keeps it that way. This is important when comparing
- -- against the new interface file, which has the stuff in sorted order
- -- If they differ, we'll bump the module number when it's unnecessary
+ | tc_occ stuff_inside { AvailTC $1 ($1:$2) }
+ -- Note that the "main name" comes at the beginning
stuff_inside :: { [OccName] }
stuff_inside : '{' val_occs '}' { $2 }
| csig ';' csigs1 { $1 : $3 }
csig :: { RdrNameSig }
-csig : src_loc var_name '::' type { mkClassOpSig NoDefMeth $2 $4 $1 }
- | src_loc var_name '=' '::' type { mkClassOpSig (DefMeth (error "DefMeth") )
- $2 $5 $1 }
- | src_loc var_name ';' '::' type { mkClassOpSig GenDefMeth $2 $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 inst_decl { $2 : $1 }
inst_decl :: { RdrNameInstDecl }
-inst_decl : src_loc 'instance' type '=' var_name ';'
+inst_decl : src_loc 'instance' type '=' qvar_name ';'
{ InstDecl $3
EmptyMonoBinds {- No bindings -}
[] {- No user pragmas -}
| opt_version decl ';' decls_part { ($1,$2):$4 }
decl :: { RdrNameTyClDecl }
-decl : src_loc var_name '::' type maybe_idinfo
+decl : src_loc qvar_name '::' type maybe_idinfo
{ IfaceSig $2 $4 ($5 $2) $1 }
- | src_loc 'type' tc_name tv_bndrs '=' type
+ | src_loc 'type' qtc_name tv_bndrs '=' type
{ TySynonym $3 $4 $6 $1 }
- | src_loc 'data' opt_decl_context tc_name tv_bndrs constrs
+ | 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 tc_name tv_bndrs newtype_constr
+ | 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 tc_name tv_bndrs fds csigs
- { mkClassDecl $3 $4 $5 $6 $7 EmptyMonoBinds $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 _ (PIdInfo id_info) -> id_info
+ POk _ id_info -> id_info
PFailed err -> pprPanic "IdInfo parse failed"
(vcat [ppr x, err])
}
dates from a time where we picked up a .hi file first if it existed.]
-}
-pragma :: { ParseResult IfaceStuff }
-pragma : src_loc PRAGMA { parseIface $2 PState{ bol = 0#, atbol = 1#,
+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) }
- | pragma { case $1 of
- POk _ (PRulesAndDeprecs rds) -> rds
+ | 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 ';' rules { $1:$3 }
rule :: { RdrNameRuleDecl }
-rule : src_loc STRING rule_forall qvar_name
- core_args '=' core_expr { IfaceRule $2 $3 $4 $5 $7 $1 }
+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 : deprec_name STRING { ($1, $2) }
deprec_name :: { RdrName }
- : var_name { $1 }
- | tc_name { $1 }
+ : qvar_name { $1 }
+ | qtc_name { $1 }
-----------------------------------------------------------------------------
| constr '|' constrs1 { $1 : $3 }
constr :: { RdrNameConDecl }
-constr : src_loc ex_stuff data_name batypes { mk_con_decl $3 $2 (VanillaCon $4) $1 }
- | src_loc ex_stuff data_name '{' fields1 '}' { mk_con_decl $3 $2 (RecCon $5) $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] {- Not allowed to be empty -} }
-newtype_constr : src_loc '=' ex_stuff data_name atype { [mk_con_decl $4 $3 (VanillaCon [Unbanged $5]) $1] }
- | src_loc '=' ex_stuff data_name '{' var_name '::' atype '}'
- { [mk_con_decl $4 $3 (RecCon [([$6], Unbanged $8)]) $1] }
+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] }
ex_stuff :: { ([HsTyVarBndr RdrName], RdrNameContext) }
ex_stuff : { ([],[]) }
| batype batypes { $1 : $2 }
batype :: { RdrNameBangType }
-batype : atype { Unbanged $1 }
- | '!' atype { Banged $2 }
- | '!' '!' atype { Unpacked $3 }
+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) }
- | var_names1 '::' '!' '!' type { ($1, Unpacked $5) }
+field : qvar_names1 '::' ttype { ($1, unbangedType $3) }
+ | qvar_names1 '::' '!' ttype { ($1, BangType MarkedStrict $4) }
+ | qvar_names1 '::' '!' '!' ttype { ($1, BangType MarkedUnboxed $5) }
+
--------------------------------------------------------------------------
type :: { RdrNameHsType }
-type : '__fuall' fuall '=>' type { mkHsUsForAllTy $2 $4 }
- | '__forall' tv_bndrs
+type : '__forall' tv_bndrs
opt_context '=>' type { mkHsForAllTy (Just $2) $3 $5 }
| btype '->' type { HsFunTy $1 $3 }
| btype { $1 }
-fuall :: { [RdrName] }
-fuall : '[' uv_bndrs ']' { $2 }
-
opt_context :: { RdrNameContext }
opt_context : { [] }
| context { $1 }
| class ',' context_list1 { $1 : $3 }
class :: { HsPred RdrName }
-class : qcls_name atypes { (HsPClass $1 $2) }
- | ipvar_name '::' type { (HsPIParam $1 $3) }
+class : qcls_name atypes { (HsClassP $1 $2) }
+ | ipvar_name '::' type { (HsIParam $1 $3) }
types0 :: { [RdrNameHsType] {- Zero or more -} }
types0 : {- empty -} { [ ] }
btype :: { RdrNameHsType }
btype : atype { $1 }
| btype atype { HsAppTy $1 $2 }
- | '__u' usage atype { HsUsgTy $2 $3 }
-
-usage :: { HsUsageAnn RdrName }
-usage : '-' { HsUsOnce }
- | '!' { HsUsMany }
- | uv_name { HsUsVar $1 }
+ | '__u' atype atype { HsUsageTy $2 $3 }
atype :: { RdrNameHsType }
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 }
atypes :: { [RdrNameHsType] {- Zero or more -} }
atypes : { [] }
| atype atypes { $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,
---------------------------------------------------
-var_fs :: { EncodedFS }
+var_fs :: { EncodedFS }
: VARID { $1 }
- | '!' { SLIT("!") }
| 'as' { SLIT("as") }
| 'qualified' { SLIT("qualified") }
| 'hiding' { SLIT("hiding") }
: var_fs { mkSysOccFS varName $1 }
var_name :: { RdrName }
-var_name : var_occ { mkRdrIfaceUnqual $1 }
+var_name : var_occ { mkRdrUnqual $1 }
qvar_name :: { RdrName }
qvar_name : var_name { $1 }
| qvar_fs { mkIfaceOrig varName $1 }
ipvar_name :: { RdrName }
- : IPVARID { mkRdrIfaceUnqual (mkSysOccFS ipName (tailFS $1)) }
+ : 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 : { [] }
: data_fs { mkSysOccFS dataName $1 }
data_name :: { RdrName }
- : data_occ { mkRdrIfaceUnqual $1 }
+ : data_occ { mkRdrUnqual $1 }
qdata_name :: { RdrName }
qdata_name : data_name { $1 }
| qdata_fs { mkIfaceOrig dataName $1 }
var_or_data_name :: { RdrName }
- : var_name { $1 }
- | data_name { $1 }
+ : qvar_name { $1 }
+ | qdata_name { $1 }
---------------------------------------------------
tc_occ :: { OccName }
: data_fs { mkSysOccFS tcName $1 }
tc_name :: { RdrName }
- : tc_occ { mkRdrIfaceUnqual $1 }
+ : tc_occ { mkRdrUnqual $1 }
qtc_name :: { RdrName }
: tc_name { $1 }
---------------------------------------------------
cls_name :: { RdrName }
- : data_fs { mkRdrIfaceUnqual (mkSysOccFS clsName $1) }
+ : data_fs { mkRdrUnqual (mkSysOccFS clsName $1) }
qcls_name :: { RdrName }
: cls_name { $1 }
| qdata_fs { mkIfaceOrig clsName $1 }
---------------------------------------------------
-uv_name :: { RdrName }
- : VARID { mkRdrIfaceUnqual (mkSysOccFS uvName $1) }
-
-uv_bndr :: { RdrName }
- : uv_name { $1 }
-
-uv_bndrs :: { [RdrName] }
- : { [] }
- | uv_bndr uv_bndrs { $1 : $2 }
-
----------------------------------------------------
tv_name :: { RdrName }
- : VARID { mkRdrIfaceUnqual (mkSysOccFS tvName $1) }
- | VARSYM { mkRdrIfaceUnqual (mkSysOccFS tvName $1) {- Allow t2 as a tyvar -} }
+ : var_fs { mkRdrUnqual (mkSysOccFS tvName $1) }
tv_bndr :: { HsTyVarBndr RdrName }
: tv_name '::' akind { IfaceTyVar $1 $3 }
- | tv_name { IfaceTyVar $1 boxedTypeKind }
+ | tv_name { IfaceTyVar $1 liftedTypeKind }
tv_bndrs :: { [HsTyVarBndr RdrName] }
-tv_bndrs : tv_bndrs1 { $1 }
+ : tv_bndrs1 { $1 }
| '[' tv_bndrs1 ']' { $2 } -- Backward compatibility
tv_bndrs1 :: { [HsTyVarBndr RdrName] }
akind :: { Kind }
: VARSYM { if $1 == SLIT("*") then
- boxedTypeKind
+ liftedTypeKind
else if $1 == SLIT("?") then
openTypeKind
- else panic "ParseInterface: akind"
+ else if $1 == SLIT("\36") then
+ usageTypeKind -- dollar
+ else panic "ParseInterface: akind"
}
| '(' kind ')' { $2 }
| id_info_item id_info { $1 : $2 }
id_info_item :: { HsIdInfo RdrName }
- : '__A' INTEGER { HsArity (exactArity (fromInteger $2)) }
+ : '__A' INTEGER { HsArity (fromInteger $2) }
| '__U' inline_prag core_expr { HsUnfold $2 $3 }
- | '__M' { HsCprInfo }
- | '__S' { HsStrictness (mkStrictnessInfo $1) }
+ | '__S' { HsStrictness $1 }
| '__C' { HsNoCafRefs }
- | '__P' qvar_name { HsWorker $2 }
+ | '__P' qvar_name INTEGER { HsWorker $2 (fromInteger $3) }
inline_prag :: { InlinePragInfo }
- : {- empty -} { NoInlinePragInfo }
- | '[' from_prag phase ']' { IMustNotBeINLINEd $2 $3 }
-
-from_prag :: { Bool }
- : {- empty -} { True }
- | '!' { False }
-
-phase :: { Maybe Int }
- : {- empty -} { Nothing }
- | INTEGER { Just (fromInteger $1) }
+ : {- empty -} { AlwaysActive }
+ | '[' INTEGER ']' { ActiveAfter (fromInteger $2) }
-------------------------------------------------------
core_expr :: { UfExpr RdrName }
{ let
(is_dyn, is_casm, may_gc) = $2
- target | is_dyn = DynamicTarget (error "CCall dyn target bogus unique")
+ target | is_dyn = DynamicTarget
+ | is_casm = CasmTarget $3
| otherwise = StaticTarget $3
- ccall = CCall target is_casm may_gc cCallConv
+ ccall = CCallSpec target CCallConv may_gc
in
- UfCCall ccall $4
+ UfFCall (CCall ccall) $4
}
core_tv_bndr :: { UfBinder RdrName }
core_tv_bndr : '@' tv_name '::' akind { UfTyBinder $2 $4 }
- | '@' tv_name { UfTyBinder $2 boxedTypeKind }
+ | '@' tv_name { UfTyBinder $2 liftedTypeKind }
ccall_string :: { FAST_STRING }
: STRING { $1 }
happyError :: P a
happyError buf PState{ loc = loc } = PFailed (ifaceParseErr buf loc)
-data IfaceStuff = PIface ParsedIface
- | PIdInfo [HsIdInfo RdrName]
- | PType RdrNameHsType
- | PRulesAndDeprecs ([RdrNameRuleDecl], IfaceDeprecs)
-
mk_con_decl name (ex_tvs, ex_ctxt) details loc = mkConDecl name ex_tvs ex_ctxt details loc
}
projects / ghc-hetmet.git / blobdiff