diff options
Diffstat (limited to 'perl_checker.src/global_checks.ml')
| -rw-r--r-- | perl_checker.src/global_checks.ml | 639 |
1 files changed, 0 insertions, 639 deletions
diff --git a/perl_checker.src/global_checks.ml b/perl_checker.src/global_checks.ml deleted file mode 100644 index a63e652..0000000 --- a/perl_checker.src/global_checks.ml +++ /dev/null @@ -1,639 +0,0 @@ -open Types -open Common -open Printf -open Config_file -open Parser_helper -open Tree - -type state = { - per_files : (string, per_file) Hashtbl.t ; - per_packages : (string, per_package) Hashtbl.t ; - methods : (string, (string * variable_used ref * prototype option) list) Hashtbl.t ; - global_vars_used : ((context * string * string) * pos) list ref ; - packages_being_classes : (string, unit) Hashtbl.t ; - packages_dependencies : (string * string, unit) Hashtbl.t ; - packages_dependencies_maybe : (string * string * string, unit) Hashtbl.t ; - } - -type vars = { - my_vars : ((context * string) * (pos * variable_used ref * prototype option)) list list ; - our_vars : ((context * string) * (pos * variable_used ref * prototype option)) list list ; - locally_imported : ((context * string) * (string * variable_used ref * prototype option)) list ; - required_vars : (context * string * string) list ; - current_package : per_package ; - is_toplevel : bool ; - write_only : bool ; - state : state ; - } - - -let rec get_imported state current_package (package_name, (imports, pos)) = - try - let package_used = Hashtbl.find state.per_packages package_name in - let exports = package_used.exports in - let get_var_by_name var = - let (b, prototype) = - try sndter3 (Hashtbl.find package_used.vars_declared var) - with Not_found -> - try - sndter3 (List.assoc var (get_imports state package_used)) - with Not_found -> - warn_with_pos [Warn_import_export] pos (sprintf "name %s is not defined in package %s" (variable2s var) package_name) ; - ref Access_various, None - in - var, (package_name, b, prototype) - in - match imports with - | None -> - let re = match exports.special_export with - | Some Re_export_all -> get_imports state package_used - | Some Fake_export_all -> - (* HACK: if package exporting-all is ignored, ignore package importing *) - if List.mem package_name !ignored_packages then Tree.ignore_package current_package.package_name; - - Hashtbl.fold (fun var (_pos, b, proto) l -> (var, (package_name, b, proto)) :: l) package_used.vars_declared [] - | _ -> [] in - let l = List.map get_var_by_name exports.export_auto in - re @ l - | Some l -> - let imports_vars = - collect (function - | I_raw, tag -> - (try - List.assoc tag exports.export_tags - with Not_found -> warn_with_pos [Warn_import_export] pos (sprintf "package %s doesn't export tag %s" package_name tag) ; []) - | variable -> - if List.mem variable exports.export_ok || List.mem variable exports.export_auto then - [ variable ] - else - (warn_with_pos [Warn_import_export] pos (sprintf "package %s doesn't export %s" package_name (variable2s variable)) ; []) - ) l - in - List.map get_var_by_name imports_vars - with Not_found -> [] - -and get_imports state package = - match !(package.imported) with - | Some l -> l - | None -> - let l = collect (get_imported state package) package.uses in - package.imported := Some l ; - l - -let do_para_comply_with_prototype para proto = - match proto with - | Some proto -> - (match para with - | [] as paras - | [List [List paras]] - | [List paras] -> - if List.exists is_not_a_scalar paras then 0 else - let len = List.length paras in - if len < proto.proto_nb_min then -1 - else (match proto.proto_nb_max with - | Some max -> if len > max then 1 else 0 - | None -> 0) - | _ -> 0) - | _ -> 0 - -let check_para_comply_with_prototype para proto = - match para with - | None -> () - | Some(pos, para) -> - match do_para_comply_with_prototype para proto with - | -1 -> warn_with_pos [Warn_prototypes] pos "not enough parameters" - | 1 -> warn_with_pos [Warn_prototypes] pos "too many parameters" - | _ -> () - -let is_anonymous_variable_name s = String.length s > 1 && s.[0] = '_' - -let add_to_packages_really_used state current_package used_name = - Hashtbl.replace state.packages_dependencies (current_package.package_name, used_name) () ; - (*List.iter (fun (p1, p2) -> prerr_endline (Printf.sprintf "%s -> %s" p1 p2)) (hashtbl_keys state.packages_dependencies);*) - () - -let add_to_packages_maybe_used state current_package used_name method_name = - Hashtbl.replace state.packages_dependencies_maybe (current_package.package_name, used_name, method_name) () ; - (*List.iter (fun (p1, p2) -> prerr_endline (Printf.sprintf "%s -> %s" p1 p2)) (hashtbl_keys state.packages_dependencies_maybe);*) - () - -let variable_used write_only used = - if !used != Access_various then - used := if write_only then Access_write_only else Access_various - -let is_my_declared vars t = - List.exists (fun l -> - List.mem_assoc t l && (variable_used vars.write_only (snd3 (List.assoc t l)) ; true) - ) vars.my_vars -let is_our_declared vars t = - List.exists (fun l -> - List.mem_assoc t l && (variable_used vars.write_only (snd3 (List.assoc t l)) ; true) - ) vars.our_vars - -let is_var_declared_raw write_only state package var para = - match - try - let _, used, proto = Hashtbl.find package.vars_declared var in - Some(used, proto) - with Not_found -> try - let package_name, used, proto = List.assoc var (get_imports state package) in - add_to_packages_really_used state package package_name ; - Some(used, proto) - with Not_found -> - None - with - | Some (used, proto) -> - check_para_comply_with_prototype para proto ; - variable_used write_only used ; - true - | None -> - false - -let is_var_declared vars var para = - List.mem_assoc var vars.locally_imported || - is_var_declared_raw vars.write_only vars.state vars.current_package var para - -let is_global_var_declared vars (context, fq, name) para = - try - let package = Hashtbl.find vars.state.per_packages fq in - add_to_packages_really_used vars.state vars.current_package package.package_name ; - is_var_declared_raw vars.write_only vars.state package (context, name) para - with Not_found -> false - - -let is_global_var context ident = - match context with - | I_scalar -> - (match ident with - | "@" | "!" | ">" | "\\" | "$" | "^A" | "'" | "/" | "?" | "<" | "^W" | "|" | "^I" | "&" | "." - | "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" -> true - | _ -> false) - | I_array -> - (match ident with - | "ARGV" | "INC" -> true - | _ -> false) - | I_hash -> - (match ident with - | "ENV" | "SIG" -> true - | _ -> false) - | I_star -> - (match ident with - | "STDIN" | "STDOUT" | "STDERR" | "DATA" - | "__FILE__" | "__LINE__" | "undef" -> true - | _ -> false) - | I_func -> - (match ident with - | "-b" | "-c" | "-d" | "-e" | "-f" | "-l" | "-r" | "-s" | "-w" | "-x" - | "abs" | "alarm" | "atan2" | "bless" - | "caller" | "chdir" | "chmod" | "chomp" | "chop" | "chown" | "chr" | "chroot" | "close" | "closedir" | "cos" | "crypt" - | "defined" | "delete" | "die" - | "each" | "endpwent" | "eof" | "eval" | "exec" | "exists" | "exit" - | "fcntl" | "fileno" | "flock" | "formline" | "fork" - | "gethostbyaddr" | "gethostbyname" | "getgrent" | "getgrnam" | "getgrgid" | "getppid" | "getpwent" | "getpwnam" | "getpwuid" | "getservbyname" | "glob" | "gmtime" | "goto" | "grep" | "hex" - | "index" | "int" | "ioctl" | "join" | "keys" | "kill" - | "last" | "lc" | "lcfirst" | "length" | "link" | "localtime" | "log" | "lstat" - | "map" | "mkdir" | "next" | "no" | "oct" | "open" | "opendir" | "ord" - | "pack" | "pipe" | "pop" | "print" | "printf" | "push" | "quotemeta" - | "rand" | "read" | "readdir" | "readlink" | "redo" | "ref" | "rename" | "require" | "return" | "reverse" | "rindex" | "rmdir" - | "scalar" | "seek" | "select" | "setpwent" | "shift" | "sin" | "sleep" | "sort" | "splice" | "split" | "sprintf" | "sqrt" | "stat" | "substr" - | "symlink" | "syscall" | "sysopen" | "sysread" | "sysseek" | "system" | "syswrite" | "tie" | "time" - | "uc" | "ucfirst" | "umask" | "undef" | "unlink" | "unpack" | "unshift" | "utime" | "values" | "vec" | "wait" | "waitpid" | "wantarray" | "warn" | "write" - -> true - - | _ -> false) - | _ -> false - -let check_variable (context, var) vars para = - match var with - | Ident(_, s, pos) when context <> I_func && is_anonymous_variable_name s && s <> "__FILE__" && s <> "__LINE__" -> - warn_with_pos [Warn_normalized_expressions] pos (sprintf "variable %s must not be used\n (variable with name _XXX are reserved for unused variables)" (variable2s(context, string_of_fromparser var))) - | Ident(Some pkg, _, _) when uses_external_package pkg || List.mem pkg !ignored_packages -> () - | Ident(None, ident, pos) -> - if is_my_declared vars (context, ident) || is_our_declared vars (context, ident) || is_var_declared vars (context, ident) para || is_global_var context ident - then () - else warn_with_pos [Warn_names] pos (if context = I_func then "unknown function " ^ ident else "undeclared variable " ^ variable2s(context, ident)) - | Ident(Some fq, name, pos) -> - if (fq = "CORE") && is_global_var context name || is_global_var_declared vars (context, fq, name) para - then () - else - if context = I_func then - warn_with_pos [Warn_names] pos ("unknown function " ^ string_of_fromparser var) - else - lpush vars.state.global_vars_used ((context, fq, name), pos) - | _ -> () - -let declare_My vars (mys, pos) = - let l_new = List.filter (fun (context, ident) -> - if context = I_raw then - if ident = "undef" then false else die_with_pos pos (sprintf "bad ident %s in my" ident) - else true - ) mys in - let l_pre = List.hd vars.my_vars in - List.iter (fun v -> - if List.mem_assoc v l_pre then warn_with_pos [Warn_names] pos (sprintf "redeclared variable %s" (variable2s v)) - ) l_new ; - { vars with my_vars = (List.map (fun v -> v, (pos, ref Access_none, None)) l_new @ l_pre) :: List.tl vars.my_vars } - -let declare_Our vars (ours, pos) = - match vars.our_vars with - | [] -> vars (* we're at the toplevel, already declared in vars_declared *) - | l_pre :: other -> - List.iter (fun v -> - if List.mem_assoc v l_pre && v <> (I_scalar, "_") then warn_with_pos [Warn_names] pos (sprintf "redeclared variable %s" (variable2s v)) - ) ours ; - { vars with our_vars = (List.map (fun v -> v, (pos, ref Access_none, None)) ours @ l_pre) :: other } - -let declare_My_our vars (my_or_our, l, pos) = - match my_or_our with - | "my" -> declare_My vars (l, pos) - | "local" - | "our" -> declare_Our vars (l, pos) - | _ -> internal_error "declare_My_our" - -let un_parenthesize_one_elt_List = function - | [List l] -> l - | l -> l - -let check_unused_local_variables vars = - List.iter (fun ((context, s as v), (pos, used, _proto)) -> - if !used != Access_various then - match s with - | "BEGIN" | "END" | "DESTROY" -> () - | "_" when context = I_array -> - warn_with_pos [Warn_normalized_expressions] pos "if the function doesn't take any parameters, please use the empty prototype.\nexample \"sub foo() { ... }\"" - | _ -> - if s.[0] != '_' || s = "_" then - let msg = if !used = Access_write_only then sprintf "variable %s assigned, but not read" else sprintf "unused variable %s" in - warn_with_pos [Warn_names] pos (msg (variable2s v)) - ) (List.hd vars.my_vars) - -let check_variables vars t = - let rec check_variables_ vars t = fold_tree check vars t - and check vars = function - | Block l -> - let vars' = { vars with my_vars = [] :: vars.my_vars ; our_vars = [] :: vars.our_vars } in - let vars' = List.fold_left check_variables_ vars' l in - check_unused_local_variables vars' ; - Some vars - | Call(Deref(I_func, Ident(None, "sort", _)), (Anonymous_sub(_, Block f, pos) :: l)) -> - let vars = List.fold_left check_variables_ vars l in - let vars' = { vars with my_vars = [ (I_scalar, "a"), (pos, ref Access_various, None) ; (I_scalar, "b"), (pos, ref Access_various, None) ] :: vars.my_vars ; our_vars = [] :: vars.our_vars } in - let vars' = List.fold_left check_variables_ vars' f in - check_unused_local_variables vars' ; - Some vars - - | Call(Deref(I_func, Ident(None, func, func_pos)), Anonymous_sub(_, Block f, pos) :: l) - when List.mem func [ "grep" ; "map" ; "substInFile" ; "map_index" ; "each_index" ; "partition" ; "find_index" ; "grep_index" ; "find" ; "any" ; "every" ; "uniq_" ] -> - let vars = List.fold_left check_variables_ vars l in - let vars' = { vars with my_vars = [] :: vars.my_vars ; our_vars = [(I_scalar, "_"), (pos, ref Access_various, None)] :: vars.our_vars } in - let vars' = List.fold_left check_variables_ vars' f in - check_unused_local_variables vars' ; - check_variable (I_func, Ident(None, func, func_pos)) vars None ; - Some vars - - | Call(Deref(I_func, (Ident _ as ident)), [ Deref(I_star, (Ident(None, "_", _))) ]) -> - (* the &f case: allow access to @_ *) - check_variable (I_func, ident) vars None ; - let _ = is_my_declared vars (I_array, "_") in - Some vars - - | Call(Deref(I_func, (Ident _ as ident)), [ List [ Deref(I_array, (Ident(None, "_", pos))) ] ]) -> - (* special warning if @_ is unbound *) - check_variable (I_func, ident) vars None ; - if not (is_my_declared vars (I_array, "_")) then - warn_with_pos [Warn_suggest_simpler] pos (sprintf "replace %s(@_) with &%s" (string_of_fromparser ident) (string_of_fromparser ident)) ; - Some vars - - | Call(Deref(I_func, Ident(None, "require", _)), [Ident _]) -> Some vars - - | Call(Deref(I_func, Ident(None, "shift", pos)) as var, []) - | Call(Deref(I_func, Ident(None, "pop", pos)) as var, []) -> - check vars (Call(var, [ Deref(I_array, Ident(None, (if vars.is_toplevel then "ARGV" else "_"), pos)) ])) - - | Call(Deref(context, (Ident(_, _, pos) as var)), para) -> - check_variable (context, var) vars (Some(pos, para)) ; - let vars = List.fold_left check_variables_ vars para in - Some vars - -(* | Call_op("=", -> List.fold_left (fold_tree f) env l*) - - | Call_op("while infix", [ expr ; (List [ Call_op("<>", _, _) ] as l) ], pos) - | Call_op("for infix", [ expr ; l ], pos) -> - let vars = check_variables_ vars l in - let vars' = { vars with my_vars = [] :: vars.my_vars ; our_vars = [(I_scalar, "_"), (pos, ref Access_various, None)] :: vars.our_vars } in - let vars' = check_variables_ vars' expr in - if List.hd(vars'.my_vars) <> [] then warn_with_pos [Warn_traps] pos "you can't declare variables in foreach postfix"; - Some vars - - | Call_op("foreach my", [my; expr; Block block], _) -> - let vars = check_variables_ vars expr in - let vars = check_variables_ vars (Block (my :: block)) in - Some vars - | Call_op(op, l, _) when op = "if" || op = "while" || op = "unless" || op = "until" -> - let vars' = { vars with my_vars = [] :: vars.my_vars ; our_vars = [] :: vars.our_vars } in - let vars' = List.fold_left check_variables_ vars' l in - check_unused_local_variables vars' ; - Some vars - - | Sub_declaration(Ident(fq, name, pos) as ident, perl_proto, Block body, kind) -> - let vars = declare_Our vars ([ I_func, string_of_fromparser ident ], pos) in - - let my_vars, l = - match has_proto perl_proto (Block body) with - | Some(mys, mys_pos, body) -> - [], My_our ("my", mys, mys_pos) :: body - | _ -> - let dont_check_use = - kind = Glob_assign || - fq = None && List.mem name ["DESTROY"] || - Hashtbl.mem vars.state.packages_being_classes (some_or fq vars.current_package.package_name) - in - [(I_array, "_"), (pos, ref (if dont_check_use then Access_various else Access_none), None)], body - in - let local_vars = - if fq = None && name = "AUTOLOAD" - then [ (I_scalar, "AUTOLOAD"), (pos, ref Access_various, None) ] - else [] in - - let vars' = { vars with my_vars = my_vars :: vars.my_vars ; our_vars = local_vars :: vars.our_vars ; is_toplevel = false } in - let vars' = List.fold_left check_variables_ vars' l in - check_unused_local_variables vars' ; - Some vars - - | Anonymous_sub(_, Block l, pos) -> - let vars' = { vars with my_vars = [(I_array, "_"), (pos, ref Access_various, None)] :: vars.my_vars ; is_toplevel = false } in - let vars' = List.fold_left check_variables_ vars' l in - check_unused_local_variables vars' ; - Some vars - - | Call_op("foreach", [ expr ; Block l ], pos) -> - let vars = check_variables_ vars expr in - let vars' = { vars with my_vars = [] :: vars.my_vars ; our_vars = [(I_scalar, "_"), (pos, ref Access_various, None)] :: vars.our_vars } in - let vars' = List.fold_left check_variables_ vars' l in - check_unused_local_variables vars' ; - Some vars - - | Anonymous_sub _ - | Sub_declaration _ -> internal_error "check_variables" - - | Ident _ as var -> - check_variable (I_star, var) vars None ; - Some vars - - | My_our(my_or_our, mys, pos) -> Some(declare_My_our vars (my_or_our, mys, pos)) - | Deref(context, (Ident _ as var)) -> - check_variable (context, var) vars None ; - Some vars - | Deref_with(context, _, (Ident _ as var), para) -> - let vars = check_variables_ vars para in - check_variable (context, var) vars None ; - Some vars - - | Call_op("=", [My_our(my_or_our, mys, pos); e], _) -> - (* check e first *) - let vars = check_variables_ vars e in - List.iter (fun (context, var) -> - if non_scalar_context context then warn_with_pos [Warn_prototypes] pos (sprintf "%s takes all the arguments, %s is undef in any case" (variable2s (context, var)) (variable2s (last mys))) - ) (removelast mys) ; (* mys is never empty *) - Some(declare_My_our vars (my_or_our, mys, pos)) - - | Call_op("if infix", [List [My_our _]; List [Num("0", _)]], _) -> None (* special allowed case *) - | Call_op(op, List (My_our _ :: _) :: _, pos) - | Call_op(op, My_our _ :: _, pos) - | Call_op(op, Call_op("local", _, _) :: _, pos) -> - if op <> "=" then warn_with_pos [Warn_traps] pos (sprintf "applying %s on a new initialized variable is wrong" op); - None - - | Call_op("=", [ Deref(context, (Ident _ as var)) ; para], _) -> - check_variable (context, var) { vars with write_only = true } None ; - Some (check_variables_ vars para) - - | Call_op("=", [ List [ List l ] ; para], _) -> - let vars = List.fold_left (fun vars -> function - | Deref(context, (Ident _ as var)) -> - check_variable (context, var) { vars with write_only = true } None ; - vars - | e -> check_variables_ vars e - ) vars l in - let vars = check_variables_ vars para in - Some vars - - | Method_call(Raw_string(package_name, pos), Raw_string ("import", _), para) -> - let args = - match para with - | [] -> None - | [ List [v] ] -> Some(from_qw v) - | _ -> die_with_pos pos "bad import statement" in - let l = get_imported vars.state vars.current_package (package_name, (args, pos)) in - let vars = - if vars.is_toplevel then ( - vars.current_package.imported := Some (get_imports vars.state vars.current_package @ l) ; - vars - ) else - { vars with locally_imported = l @ vars.locally_imported } in - Some vars - - | Method_call(Raw_string(pkg, _) as class_, Raw_string(method_, pos), para) -> - let vars = List.fold_left check_variables_ vars para in - let rec search pkg = - if is_global_var_declared vars (I_func, pkg, method_) (Some(pos, [ List (class_ :: un_parenthesize_one_elt_List para) ])) then true - else - let package = Hashtbl.find vars.state.per_packages pkg in - List.exists search (List.map fst (some_or package.isa [])) - in - (try - if not (uses_external_package pkg || List.mem pkg !ignored_packages || search pkg || method_ = "bootstrap") then - warn_with_pos [Warn_import_export] pos (sprintf "unknown method %s starting in package %s" method_ pkg); - with Not_found -> warn_with_pos [Warn_import_export] pos (sprintf "unknown package %s" pkg)); - Some vars - - | Method_call(o, Raw_string(method_, pos), para) -> - let vars = check_variables_ vars o in - let vars = List.fold_left check_variables_ vars para in - (try - let l = Hashtbl.find vars.state.methods method_ in - let l_and = List.map (fun (pkg_name, used, proto) -> pkg_name, used, do_para_comply_with_prototype [ List (o :: un_parenthesize_one_elt_List para) ] proto) l in - let l_and' = - match List.filter (fun (_, _, n) -> n = 0) l_and with - | [] -> - (match uniq (List.map ter3 l_and) with - | [-1] -> warn_with_pos [Warn_prototypes] pos "not enough parameters" - | [ 1] -> warn_with_pos [Warn_prototypes] pos "too many parameters" - | _ -> warn_with_pos [Warn_prototypes] pos "not enough or too many parameters") ; - l_and - | l -> l - in - List.iter (fun (pkg_name, _, _) -> add_to_packages_maybe_used vars.state vars.current_package pkg_name method_) l_and' ; - List.iter (fun (_, used, _) -> used := Access_various) l_and' - with Not_found -> - if not (List.mem method_ [ "isa"; "can" ]) then - warn_with_pos [Warn_names] pos ("unknown method " ^ method_)) ; - Some vars - - | _ -> None - in - let vars = List.fold_left check_variables_ { vars with my_vars = [[]] } t in - vars - -let check_tree state package = - let vars = { my_vars = [[]]; our_vars = []; locally_imported = []; required_vars = []; current_package = package; state = state; is_toplevel = true; write_only = false } in - if !Flags.verbose then print_endline_flush ("checking package " ^ package.package_name) ; - let vars = check_variables vars package.body in - check_unused_local_variables vars ; - () - -let imported_add i1 i2 = if i1 = None && i2 = None then None else Some (some_or i1 [] @ some_or i2 []) - -let add_package_to_state state package = - let package = - try - let existing_package = Hashtbl.find state.per_packages package.package_name in - (*print_endline_flush (existing_package.file_name ^ " vs " ^ package.file_name); *) - let vars_declared = existing_package.vars_declared in - Hashtbl.iter (fun var pos -> Hashtbl.replace vars_declared var pos) package.vars_declared ; - let p = { - package_name = package.package_name ; has_package_name = package.has_package_name ; - isa = if existing_package.isa = None then package.isa else existing_package.isa ; - body = existing_package.body @ package.body ; - uses = existing_package.uses @ package.uses ; - required_packages = existing_package.required_packages @ package.required_packages ; - vars_declared = vars_declared ; - imported = ref (imported_add !(existing_package.imported) !(package.imported)) ; - exports = { export_ok = existing_package.exports.export_ok @ package.exports.export_ok ; - export_auto = existing_package.exports.export_auto @ package.exports.export_auto ; - export_tags = existing_package.exports.export_tags @ package.exports.export_tags ; - special_export = None } - } in - Hashtbl.replace state.per_packages package.package_name p ; - p - with Not_found -> package - in - Hashtbl.replace state.per_packages package.package_name package - -let add_file_to_files per_files file = - Hashtbl.replace per_files file.file_name file - -let check_unused_vars package = - Hashtbl.iter (fun (context, name) (pos, is_used, _proto) -> - if !is_used != Access_various && not (List.mem name ["BEGIN"; "END"; "DESTROY"; "ISA"; "AUTOLOAD"; "EXPORT"; "EXPORT_OK"; "EXPORT_TAGS"]) then - warn_with_pos [Warn_unused_global_vars] pos (sprintf "unused %s%s::%s" (if context = I_func then "function " else "variable " ^ context2s context) package.package_name name) - ) package.vars_declared - -let arrange_global_vars_declared global_vars_declared state = - Hashtbl.iter (fun (context, fq, name) (pos, proto) -> - let package = - try - Hashtbl.find state.per_packages fq - with Not_found -> - (* creating a new shadow package *) - let package = - { - package_name = fq; - has_package_name = true ; - exports = empty_exports ; - imported = ref None ; - vars_declared = Hashtbl.create 16 ; - uses = [] ; - required_packages = [] ; - body = [] ; - isa = None ; - } in - Hashtbl.add state.per_packages fq package ; - package - in - if not (Hashtbl.mem package.vars_declared (context, name)) then - Hashtbl.add package.vars_declared (context, name) (pos, ref Access_none, proto) - (* otherwise dropping this second declaration *) - ) global_vars_declared ; - state - -let get_methods_available state = - let classes = uniq ( - hashtbl_collect (fun _ package -> - match package.isa with - | None -> - if Hashtbl.mem package.vars_declared (I_func, "new") then [package] else [] - | Some l -> - package :: List.map (fun (pkg, pos) -> - try - Hashtbl.find state.per_packages pkg - with Not_found -> die_with_pos pos ("bad package " ^ pkg) - ) l - ) state.per_packages - ) in - List.iter (fun pkg -> - Hashtbl.replace state.packages_being_classes pkg.package_name () ; - Hashtbl.iter (fun (context, v) (_pos, is_used, proto) -> - if context = I_func then - let l = try Hashtbl.find state.methods v with Not_found -> [] in - Hashtbl.replace state.methods v ((pkg.package_name, is_used, proto) :: l) - ) pkg.vars_declared - ) classes ; - state - - -let default_per_files() = Hashtbl.create 16 -let default_state per_files = { - per_files = per_files; - per_packages = Hashtbl.create 16; - methods = Hashtbl.create 256; - global_vars_used = ref []; - packages_being_classes = Hashtbl.create 16; - packages_dependencies = Hashtbl.create 16; - packages_dependencies_maybe = Hashtbl.create 16 -} - -let cache_cache = Hashtbl.create 16 - -let pkgs2s prefix l = - let l = List.sort compare (List.map (fun pkg -> pkg.file_name) l) in - String.concat "" (List.map (fun s -> prefix ^ s ^ "\n") l) - -let read_packages_from_cache per_files dir = - if !Flags.no_cache || Hashtbl.mem cache_cache dir then () else - try - Hashtbl.add cache_cache dir (); - let file = dir ^ "/.perl_checker.cache" in - let fh = open_in file in - let magic = input_line fh in - if magic <> "perl_checker cache " ^ Build.date then () else - let l = Marshal.from_channel fh in - close_in fh ; - - let l = List.filter (fun file -> - not (Hashtbl.mem per_files file.file_name) && - (try file.build_time > mtime file.file_name with _ -> false) - ) l in - - if !Flags.verbose then print_endline_flush (sprintf "using cached files\n%sfrom %s" (pkgs2s " " l) file) ; - - List.iter (fun file -> - Info.add_a_file file.file_name file.lines_starts ; - add_file_to_files per_files file - ) l - with Sys_error _ | End_of_file -> () - -let write_packages_cache per_files dir = - try - let l = List.filter (fun per_file -> per_file.require_name <> None) (hashtbl_values per_files) in - let file = dir ^ "/.perl_checker.cache" in - let fh = open_out file in - output_string fh ("perl_checker cache " ^ Build.date ^ "\n") ; - Marshal.to_channel fh l [] ; - close_out fh ; - if !Flags.verbose then print_endline_flush (sprintf "saving cached files\n%sin %s" (pkgs2s " " l) file) - with Sys_error _ -> () - -let generate_package_dependencies_graph state file = - let fh = open_out file in - - List.iter (fun (p1, p2) -> - output_string fh (p1 ^ " -> " ^ p2 ^ "\n") - ) (List.sort compare (hashtbl_keys state.packages_dependencies)) ; - - let l = Hashtbl.fold (fun (p1, p2, method_) _ l -> ((p1, method_), p2) :: l) state.packages_dependencies_maybe [] in - List.iter (fun ((p1, method_), l) -> - output_string fh (p1 ^ " ?-> " ^ String.concat " " l ^ " (" ^ method_ ^ ")\n") - ) (List.sort compare (prepare_want_all_assoc l)); - - close_out fh |