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This reverts commit d14136b0462484dad1303508380285c28d883f57.
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Implement more record like record declaration, for all record names
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RaimoNiskanen committed Sep 10, 2024
1 parent 7204580 commit dc35533
Showing 1 changed file with 36 additions and 4 deletions.
40 changes: 36 additions & 4 deletions lib/stdlib/src/erl_parse.yrl
Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,7 @@ list_comprehension lc_expr lc_exprs
map_comprehension
binary_comprehension
tuple
record_expr record_tuple record_field record_fields record_name
record_expr record_tuple record_field record_fields record_name record_spec
map_expr map_tuple map_field map_field_assoc map_field_exact map_fields map_key
if_expr if_clause if_clauses case_expr cr_clause cr_clauses receive_expr
fun_expr fun_clause fun_clauses atom_or_var integer_or_var
Expand All @@ -48,7 +48,8 @@ binary bin_elements bin_element bit_expr sigil
opt_bit_size_expr bit_size_expr opt_bit_type_list bit_type_list bit_type
top_type top_types type typed_expr typed_attr_val
type_sig type_sigs type_guard type_guards fun_type binary_type
type_spec spec_fun typed_exprs typed_record_fields field_types field_type
type_spec spec_fun typed_exprs
typed_record_spec typed_record_fields field_types field_type
map_pair_types map_pair_type
bin_base_type bin_unit_type
maybe_expr maybe_match_exprs maybe_match
Expand Down Expand Up @@ -92,7 +93,8 @@ char integer float atom sigil_prefix string sigil_suffix var
'<<' '>>'
'!' '=' '::' '..' '...'
'?='
'spec' 'callback' % helper
%% helper: special handling in parse_form like reserved word
'spec' 'callback' 'record'
dot
'%ssa%'.

Expand Down Expand Up @@ -128,6 +130,9 @@ form -> function dot : '$1'.
attribute -> '-' atom attr_val : build_attribute('$2', '$3').
attribute -> '-' atom typed_attr_val : build_typed_attribute('$2','$3').
attribute -> '-' atom '(' typed_attr_val ')' : build_typed_attribute('$2','$4').
attribute -> '-' 'record' record_spec : build_attribute(build_atom('$2'), '$3').
attribute -> '-' 'record' typed_record_spec : build_typed_attribute(build_atom('$2'), '$3').
attribute -> '-' 'record' '(' typed_record_spec ')' : build_typed_attribute(build_atom('$2'), '$4').
attribute -> '-' 'spec' type_spec : build_type_spec('$2', '$3').
attribute -> '-' 'callback' type_spec : build_type_spec('$2', '$3').

Expand All @@ -140,6 +145,19 @@ spec_fun -> atom ':' atom : {'$1', '$3'}.
typed_attr_val -> expr ',' typed_record_fields : {typed_record, '$1', '$3'}.
typed_attr_val -> expr '::' top_type : {type_def, '$1', '$3'}.

%% Pretty much like attr_val, but record name must be an atom,
%% to not allow variable names as record names when there is no leading '#'
record_spec -> atom : ['$1'].
record_spec -> atom ',' exprs: ['$1' | '$3'].
record_spec -> '(' atom ',' exprs ')': ['$2' | '$4'].
%% More record like record declararion that allows record_name
record_spec -> '#' record_name : ['$2'].
record_spec -> '#' record_name exprs: ['$2' | '$3'].
record_spec -> '(' '#' record_name exprs ')': ['$3' | '$4'].

typed_record_spec -> atom ',' typed_record_fields : {typed_record, '$1', '$3'}.
typed_record_spec -> '#' record_name typed_record_fields : {typed_record, '$2', '$3'}.

typed_record_fields -> '{' typed_exprs '}' : {tuple, ?anno('$1'), '$2'}.

typed_exprs -> typed_expr : ['$1'].
Expand Down Expand Up @@ -1281,6 +1299,10 @@ parse_form([{'-',A1},{atom,A2,callback}|Tokens]) ->
NewTokens = [{'-',A1},{'callback',A2}|Tokens],
?ANNO_CHECK(NewTokens),
parse(NewTokens);
parse_form([{'-',A1},{atom,A2,record}|Tokens]) ->
NewTokens = [{'-',A1},{'record',A2}|Tokens],
?ANNO_CHECK(NewTokens),
parse(NewTokens);
parse_form(Tokens) ->
?ANNO_CHECK(Tokens),
parse(Tokens).
Expand Down Expand Up @@ -1323,6 +1345,12 @@ parse_term(Tokens) ->
build_typed_attribute({atom,Aa,record},
{typed_record, {atom,_An,RecordName}, RecTuple}) ->
{attribute,Aa,record,{RecordName,record_tuple(RecTuple)}};
build_typed_attribute({atom,Aa,record},
{typed_record, {var,_An,RecordName}, RecTuple}) ->
{attribute,Aa,record,{RecordName,record_tuple(RecTuple)}};
build_typed_attribute({atom,Aa,record},
{typed_record, {ReservedWord,_An}, RecTuple}) ->
{attribute,Aa,record,{ReservedWord,record_tuple(RecTuple)}};
build_typed_attribute({atom,Aa,Attr},
{type_def, {call,_,{atom,_,TypeName},Args}, Type})
when Attr =:= 'type' ; Attr =:= 'opaque' ->
Expand All @@ -1334,7 +1362,7 @@ build_typed_attribute({atom,Aa,Attr},
"bad type variable")
end, Args),
{attribute,Aa,Attr,{TypeName,Type,Args}};
build_typed_attribute({atom,Aa,Attr}=Abstr,_) ->
build_typed_attribute({atom,Aa,Attr}=Abstr,_What) ->
case Attr of
record -> error_bad_decl(Abstr, record);
type -> error_bad_decl(Abstr, type);
Expand Down Expand Up @@ -1464,6 +1492,10 @@ build_attribute({atom,Aa,record}, Val) ->
case Val of
[{atom,_An,Record},RecTuple] ->
{attribute,Aa,record,{Record,record_tuple(RecTuple)}};
[{var,_An,Record},RecTuple] ->
{attribute,Aa,record,{Record,record_tuple(RecTuple)}};
[{Record,_An},RecTuple] ->
{attribute,Aa,record,{Record,record_tuple(RecTuple)}};
[Other|_] -> error_bad_decl(Other, record)
end;
build_attribute({atom,Aa,file}, Val) ->
Expand Down

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