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First lame stab at solving the diamond import problem

This commit is contained in:
Patrick Walton 2010-09-08 15:38:07 -07:00
parent 388f8ce520
commit 2172a3bcf4
5 changed files with 53 additions and 25 deletions
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42
src/boot/driver/lib.ml
View File

@ -125,6 +125,7 @@ let get_mod
(use_id:node_id)
(nref:node_id ref)
(oref:opaque_id ref)
(crate_item_cache:(crate_id, Ast.mod_items) Hashtbl.t)
: (filename * Ast.mod_items) =
let found = Queue.create () in
let suffix =
@ -183,22 +184,24 @@ let get_mod
(file_matches file)
then
begin
iflog sess
begin
fun _ ->
log sess "matched against library %s" file;
match get_meta sess file with
None -> ()
| Some meta ->
if not (Hashtbl.mem
sess.Session.sess_crate_meta meta) then
Hashtbl.add sess.Session.sess_crate_meta
meta (Session.make_crate_id sess);
Array.iter
(fun (k,v) -> log sess "%s = %S" k v)
meta;
end;
Queue.add file found;
log sess "matched against library %s" file;
let meta = get_meta sess file in
let crate_id =
match meta with
None -> Session.make_crate_id sess
| Some meta ->
iflog sess begin fun _ ->
Array.iter
(fun (k, v) -> log sess "%s = %S" k v)
meta
end;
htab_search_or_default
sess.Session.sess_crate_meta
meta
(fun () -> Session.make_crate_id sess)
in
Queue.add (file, crate_id) found;
end;
scan()
with
@ -210,8 +213,11 @@ let get_mod
match Queue.length found with
0 -> Common.err (Some use_id) "unsatisfied 'use' clause"
| 1 ->
let filename = Queue.pop found in
let items = get_file_mod sess abi filename nref oref in
let (filename, crate_id) = Queue.pop found in
let items =
htab_search_or_default crate_item_cache crate_id
(fun () -> get_file_mod sess abi filename nref oref)
in
(filename, items)
| _ -> Common.err (Some use_id) "multiple crates match 'use' clause"
;;

9
src/boot/driver/main.ml
View File

@ -239,7 +239,9 @@ let _ =
;;
let parse_input_crate _ : Ast.crate =
let parse_input_crate
(crate_cache:(crate_id, Ast.mod_items) Hashtbl.t)
: Ast.crate =
Session.time_inner "parse" sess
begin
fun _ ->
@ -250,12 +252,14 @@ let parse_input_crate _ : Ast.crate =
Cexp.parse_crate_file sess
(Lib.get_mod sess abi)
(Lib.infer_lib_name sess)
crate_cache
else
if Filename.check_suffix infile ".rs"
then
Cexp.parse_src_file sess
(Lib.get_mod sess abi)
(Lib.infer_lib_name sess)
crate_cache
else
begin
Printf.fprintf stderr
@ -295,7 +299,8 @@ let parse_input_crate _ : Ast.crate =
let (crate:Ast.crate) =
try
parse_input_crate()
let crate_cache = Hashtbl.create 1 in
parse_input_crate crate_cache
with
Not_implemented (ido, str) ->
Session.report_err sess ido str;

14
src/boot/fe/cexp.ml
View File

@ -380,6 +380,7 @@ and eval_cexp (env:env) (exp:cexp) : cdir array =
ps.pstate_temp_id
ps.pstate_node_id
ps.pstate_opaque_id
ps.pstate_crate_cache
ps.pstate_sess
ps.pstate_get_mod
ps.pstate_get_cenv_tok
@ -427,7 +428,12 @@ and eval_cexp (env:env) (exp:cexp) : cdir array =
end
u.use_meta
in
ps.pstate_get_mod meta_pat id ps.pstate_node_id ps.pstate_opaque_id
ps.pstate_get_mod
meta_pat
id
ps.pstate_node_id
ps.pstate_opaque_id
ps.pstate_crate_cache
in
iflog ps
begin
@ -618,6 +624,7 @@ let parse_crate_file
(sess:Session.sess)
(get_mod:get_mod_fn)
(infer_lib_name:(Ast.ident -> filename))
(crate_cache:(crate_id, Ast.mod_items) Hashtbl.t)
: Ast.crate =
let fname = Session.filename_of sess.Session.sess_in in
let tref = ref (Temp 0) in
@ -659,7 +666,7 @@ let parse_crate_file
| Some (PVAL_num n) -> LIT_INT n
in
let ps =
make_parser tref nref oref sess get_mod get_cenv_tok
make_parser tref nref oref crate_cache sess get_mod get_cenv_tok
infer_lib_name required required_syms fname
in
let env = { env_bindings = bindings;
@ -723,6 +730,7 @@ let parse_src_file
(sess:Session.sess)
(get_mod:get_mod_fn)
(infer_lib_name:(Ast.ident -> filename))
(crate_cache:(crate_id, Ast.mod_items) Hashtbl.t)
: Ast.crate =
let fname = Session.filename_of sess.Session.sess_in in
let tref = ref (Temp 0) in
@ -735,7 +743,7 @@ let parse_src_file
ident) ps)
in
let ps =
make_parser tref nref oref sess get_mod get_cenv_tok
make_parser tref nref oref crate_cache sess get_mod get_cenv_tok
infer_lib_name required required_syms fname
in
with_err_handling sess

7
src/boot/fe/item.ml
View File

@ -1159,7 +1159,12 @@ and parse_use
let bpos = lexpos ps in
let id = (span ps apos bpos ()).id in
let (path, items) =
ps.pstate_get_mod meta id ps.pstate_node_id ps.pstate_opaque_id
ps.pstate_get_mod
meta
id
ps.pstate_node_id
ps.pstate_opaque_id
ps.pstate_crate_cache
in
let bpos = lexpos ps in
expect ps SEMI;

6
src/boot/fe/parser.ml
View File

@ -8,7 +8,8 @@ type get_mod_fn = (Ast.meta_pat
-> node_id
-> (node_id ref)
-> (opaque_id ref)
-> (filename * Ast.mod_items))
-> (crate_id, Ast.mod_items) Hashtbl.t
-> (filename * Ast.mod_items))
;;
type pstate =
@ -22,6 +23,7 @@ type pstate =
pstate_temp_id : temp_id ref;
pstate_node_id : node_id ref;
pstate_opaque_id : opaque_id ref;
pstate_crate_cache : (crate_id, Ast.mod_items) Hashtbl.t;
pstate_get_mod : get_mod_fn;
pstate_get_cenv_tok : pstate -> Ast.ident -> token;
pstate_infer_lib_name : (Ast.ident -> filename);
@ -44,6 +46,7 @@ let make_parser
(tref:temp_id ref)
(nref:node_id ref)
(oref:opaque_id ref)
(crate_cache:(crate_id, Ast.mod_items) Hashtbl.t)
(sess:Session.sess)
(get_mod:get_mod_fn)
(get_cenv_tok:pstate -> Ast.ident -> token)
@ -69,6 +72,7 @@ let make_parser
pstate_temp_id = tref;
pstate_node_id = nref;
pstate_opaque_id = oref;
pstate_crate_cache = crate_cache;
pstate_get_mod = get_mod;
pstate_get_cenv_tok = get_cenv_tok;
pstate_infer_lib_name = infer_lib_name;