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-rw-r--r--frontend/parse.icl98
1 files changed, 46 insertions, 52 deletions
diff --git a/frontend/parse.icl b/frontend/parse.icl
index aca2b5d..208e4d2 100644
--- a/frontend/parse.icl
+++ b/frontend/parse.icl
@@ -8,17 +8,6 @@ ParseOnly :== False
toLineAndColumn {fp_line, fp_col}
= {lc_line = fp_line, lc_column = fp_col}
-// +++ move to utilities?
-
-groupBy :: (a a -> Bool) [a] -> [[a]]
-groupBy eq []
- = []
-groupBy eq [h : t]
- = [[h : this] : groupBy eq other]
- where
- (this, other)
- = span (eq h) t
-
/*
Parser for Clean 2.0
@@ -42,11 +31,14 @@ Conventions:
:: *ParseState =
{ ps_scanState :: !ScanState
, ps_error :: !*ParseErrorAdmin
- , ps_skipping :: !Bool
+ , ps_flags :: !Int
, ps_hash_table :: !*HashTable
- , ps_support_generics :: !Bool // AA: compiler option "-generics"
}
+PS_SkippingMask :== 1
+PS_SupportGenericsMask :==2
+PS_DynamicTypeUsedMask :== 4
+
/*
appScanState :: (ScanState -> ScanState) !ParseState -> ParseState
appScanState f pState=:{ps_scanState}
@@ -283,50 +275,46 @@ cWantIclFile :== True
cWantDclFile :== False
wantModule :: !Bool !Ident !Position !Bool !*HashTable !*File !SearchPaths (ModTimeFunction *Files) !*Files
- -> (!Bool, !ParsedModule, !*HashTable, !*File, !*Files)
+ -> (!Bool,!Bool,!ParsedModule, !*HashTable, !*File, !*Files)
wantModule iclmodule file_id=:{id_name} import_file_position support_generics hash_table error searchPaths modtimefunction files
= case openScanner file_name searchPaths modtimefunction files of
(Yes (scanState, modification_time), files)
# hash_table=set_hte_mark (if iclmodule 1 0) hash_table
- # (ok,mod,hash_table,file,files) = initModule file_name modification_time scanState hash_table error files
+ # (ok,dynamic_type_used,mod,hash_table,file,files) = initModule file_name modification_time scanState hash_table error files
# hash_table=set_hte_mark 0 hash_table
- ->(ok,mod,hash_table,file,files)
+ -> (ok,dynamic_type_used,mod,hash_table,file,files)
(No, files)
-> let mod = { mod_ident = file_id, mod_modification_time = "", mod_type = MK_None, mod_imports = [], mod_imported_objects = [],mod_foreign_exports=[],mod_defs = [] } in
- (False, mod, hash_table, error <<< "Error " <<< import_file_position <<< ": " <<< file_name <<< " could not be imported\n", files)
+ (False, False, mod, hash_table, error <<< "Error " <<< import_file_position <<< ": " <<< file_name <<< " could not be imported\n", files)
where
file_name = if iclmodule (id_name +++ ".icl") (id_name +++ ".dcl")
- initModule :: String String ScanState !*HashTable !*File *Files
- -> (!Bool, !ParsedModule, !*HashTable, !*File, !*Files)
+ initModule :: String String ScanState !*HashTable !*File *Files
+ -> (!Bool,!Bool,!ParsedModule,!*HashTable,!*File,!*Files)
initModule file_name modification_time scanState hash_table error files
# (succ, mod_type, mod_name, scanState) = try_module_header iclmodule scanState
| succ
# pState = { ps_scanState = scanState
, ps_error = { pea_file = error, pea_ok = True }
- , ps_skipping = False
+ , ps_flags = if support_generics PS_SupportGenericsMask 0
, ps_hash_table = hash_table
- , ps_support_generics = support_generics
}
pState = verify_name mod_name id_name file_name pState
(mod_ident, pState) = stringToIdent mod_name IC_Module pState
pState = check_layout_rule pState
(defs, pState) = want_definitions (SetGlobalContext iclmodule) pState
- {ps_scanState,ps_hash_table,ps_error}
+ {ps_scanState,ps_hash_table,ps_error,ps_flags}
= pState
defs = if (ParseOnly && id_name <> "StdOverloaded" && id_name <> "StdArray" && id_name <> "StdEnum" && id_name <> "StdBool" && id_name <> "StdDynamics" && id_name <> "StdGeneric")
[PD_Import imports \\ PD_Import imports <- defs]
defs
mod = { mod_ident = mod_ident, mod_modification_time = modification_time, mod_type = mod_type, mod_imports = [], mod_imported_objects = [], mod_foreign_exports=[],mod_defs = defs }
- = ( ps_error.pea_ok
- , mod, ps_hash_table
- , ps_error.pea_file
- , closeScanner ps_scanState files
- )
+ files = closeScanner ps_scanState files
+ = ( ps_error.pea_ok, ps_flags bitand PS_DynamicTypeUsedMask<>0, mod, ps_hash_table, ps_error.pea_file, files)
// otherwise // ~ succ
# ({fp_line}, scanState) = getPosition scanState
mod = { mod_ident = file_id, mod_modification_time = modification_time, mod_type = mod_type, mod_imports = [], mod_imported_objects = [],mod_foreign_exports=[],mod_defs = [] }
- = (False, mod, hash_table, error <<< "Error [" <<< file_name <<< ',' <<< fp_line <<< "]: incorrect module header",
+ = (False, False, mod, hash_table, error <<< "Error [" <<< file_name <<< ',' <<< fp_line <<< "]: incorrect module header",
closeScanner scanState files)
try_module_header :: !Bool !ScanState -> (!Bool,!ModuleKind,!String,!ScanState)
@@ -1517,7 +1505,7 @@ optionalCoercions pState
wantGenericDefinition :: !ParseContext !Position !ParseState -> (!ParsedDefinition, !ParseState)
wantGenericDefinition parseContext pos pState
- | not pState.ps_support_generics
+ | pState.ps_flags bitand PS_SupportGenericsMask==0
= (PD_Erroneous, parseErrorSimple "generic definition" "to enable generics use the command line flag -generics" pState)
# (name, pState) = want_name pState
| name == ""
@@ -1553,7 +1541,7 @@ wantGenericDefinition parseContext pos pState
wantDeriveDefinition :: !ParseContext !Position !*ParseState -> (!ParsedDefinition, !*ParseState)
wantDeriveDefinition parseContext pos pState
- | not pState.ps_support_generics
+ | pState.ps_flags bitand PS_SupportGenericsMask==0
= (PD_Erroneous, parseErrorSimple "generic definition" "to enable generics use the command line flag -generics" pState)
# (name, pState) = want_name pState
| name == ""
@@ -2470,7 +2458,7 @@ where
try CharTypeToken pState = (Yes BT_Char , pState)
try BoolTypeToken pState = (Yes BT_Bool , pState)
try RealTypeToken pState = (Yes BT_Real , pState)
- try DynamicTypeToken pState = (Yes BT_Dynamic , pState)
+ try DynamicTypeToken pState = (Yes BT_Dynamic , {pState & ps_flags=pState.ps_flags bitor PS_DynamicTypeUsedMask})
try FileTypeToken pState = (Yes BT_File , pState)
try WorldTypeToken pState = (Yes BT_World , pState)
try _ pState = (No , tokenBack pState)
@@ -3524,7 +3512,15 @@ where
= field_name1 == field_name2
equal_selectors _ _
= False
-
+
+ groupBy :: (a a -> Bool) [a] -> [[a]]
+ groupBy eq []
+ = []
+ groupBy eq [h : t]
+ = [[h : this] : groupBy eq other]
+ where
+ (this, other) = span (eq h) t
+
is_record_update [{nu_selectors=[select : _]} : _]
= is_record_select select
is_record_update updates
@@ -3793,9 +3789,9 @@ wantEndCodeRhs pState
= tokenBack pState
wantEndOfDefinition :: String !ParseState -> ParseState
-wantEndOfDefinition msg pState=:{ps_skipping}
- | ps_skipping
- # (token, pState) = skipToEndOfDefinition {pState & ps_skipping = False}
+wantEndOfDefinition msg pState
+ | pState.ps_flags bitand PS_SkippingMask<>0
+ # (token, pState) = skipToEndOfDefinition {pState & ps_flags = pState.ps_flags bitand (bitnot PS_SkippingMask)}
= want_end_of_definition token msg pState
# (token, pState) = nextToken FunctionContext pState
= want_end_of_definition token msg pState
@@ -3827,8 +3823,8 @@ where
token -> wantEndOfDefinition "" (parseError msg (Yes token) "end of definition" pState)
wantEndRootExpression :: !ParseState -> ParseState
-wantEndRootExpression pState=:{ps_skipping}
- | ps_skipping
+wantEndRootExpression pState
+ | pState.ps_flags bitand PS_SkippingMask<>0
= wantEndOfDefinition "root expression" pState
# (token, pState) = nextToken FunctionContext pState
(ss_useLayout, pState) = accScanState UseLayout pState
@@ -3983,7 +3979,7 @@ wantBeginGroup msg pState
// AA..
wantKind :: !ParseState -> (!TypeKind, !ParseState)
wantKind pState
- | not pState.ps_support_generics
+ | pState.ps_flags bitand PS_SupportGenericsMask==0
= (KindConst, parseErrorSimple "kind" "to enable generics use -generics command line flag" pState)
# (token, pState) = nextToken TypeContext pState
# (kind, pState) = want_simple_kind token pState
@@ -4031,8 +4027,8 @@ where
*/
instance tokenBack ParseState
where
- tokenBack pState=:{ps_skipping}
- | ps_skipping
+ tokenBack pState
+ | pState.ps_flags bitand PS_SkippingMask<>0
= pState
= appScanState tokenBack pState
@@ -4040,7 +4036,7 @@ instance nextToken ParseState
where
nextToken :: !ScanContext !ParseState -> (!Token, !ParseState)
nextToken scanContext pState
- | pState.ps_skipping // in error recovery from parse error
+ | pState.ps_flags bitand PS_SkippingMask<>0 // in error recovery from parse error
= (ErrorToken "Skipping", pState)
= accScanState (nextToken scanContext) pState
@@ -4053,7 +4049,7 @@ warnIfStrictAnnot (StrictAnnotWithPosition position) pState = parseWarningWithPo
parseWarningWithPosition :: !{# Char} !{# Char} !FilePosition !ParseState -> ParseState
parseWarningWithPosition act msg position pState
- | pState.ps_skipping
+ | pState.ps_flags bitand PS_SkippingMask<>0
= pState
| otherwise // not pState.ps_skipping
# (filename,pState=:{ps_error={pea_file,pea_ok}}) = getFilename pState
@@ -4070,7 +4066,7 @@ parseWarningWithPosition act msg position pState
parseWarning :: !{# Char} !{# Char} !ParseState -> ParseState
parseWarning act msg pState
- | pState.ps_skipping
+ | pState.ps_flags bitand PS_SkippingMask<>0
= pState
| otherwise // not pState.ps_skipping
# (pos,pState) = getPosition pState
@@ -4088,7 +4084,7 @@ parseWarning act msg pState
parseError :: !{# Char} !(Optional Token) !{# Char} !ParseState -> ParseState
parseError act opt_token msg pState
- | pState.ps_skipping
+ | pState.ps_flags bitand PS_SkippingMask<>0
= pState
| otherwise // not pState.ps_skipping
# (pos,pState) = getPosition pState
@@ -4103,8 +4099,8 @@ parseError act opt_token msg pState
Yes token -> pea_file <<< " expected instead of " <<< token <<< "\n"
No -> pea_file <<< " expected\n"
pState = { pState
- & ps_skipping = True
- , ps_error = { pea_file = pea_file, pea_ok = False }
+ & ps_flags = pState.ps_flags bitor PS_SkippingMask
+ , ps_error = { pea_file = pea_file, pea_ok = False }
}
= case opt_token of
Yes _ -> tokenBack pState
@@ -4112,7 +4108,7 @@ parseError act opt_token msg pState
parseErrorSimple :: !{# Char} !{# Char} !ParseState -> ParseState
parseErrorSimple act msg pState
- | pState.ps_skipping
+ | pState.ps_flags bitand PS_SkippingMask<>0
= pState
| otherwise // not pState.ps_skipping
# (pos,pState) = getPosition pState
@@ -4124,11 +4120,9 @@ parseErrorSimple act msg pState
<<< (if (size act > 0) ("," + act) "") <<< "]: "
<<< msg
<<< '\n'
- pState = { pState
- & ps_skipping = True
- , ps_error = { pea_file = pea_file, pea_ok = False }
- }
- = pState
+ = { pState & ps_flags = pState.ps_flags bitor PS_SkippingMask
+ , ps_error = { pea_file = pea_file, pea_ok = False }
+ }
getFileAndLineNr :: !ParseState -> (!String, !Int, !ParseState)
getFileAndLineNr pState =: {ps_scanState}
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-22 09:51:43 +0000