{"id":103828,"date":"2022-04-20T15:37:16","date_gmt":"2022-04-20T13:37:16","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dostupen-predvaritelnyj-variant-standarta-webassembly-2-0"},"modified":"2022-04-20T15:37:16","modified_gmt":"2022-04-20T13:37:16","slug":"dostupen-predvaritelnyj-variant-standarta-webassembly-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/dostupen-predvaritelnyj-variant-standarta-webassembly-2-0","title":{"rendered":"\u00cbsht\u00eb i disponuesh\u00ebm varianti paraprak i standardit WebAssembly 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Konsorciumi W3C publikoi nj\u00eb draft t\u00eb ri t\u00eb specifikimit, i cili standardizon kodin nd\u00ebrmjet\u00ebs WebAssembly 2.0 dhe API-n\u00eb p\u00ebrkat\u00ebse, duke lejuar krijimin e aplikacioneve me performanc\u00eb t\u00eb lart\u00eb, t\u00eb transportueshme midis shfletuesve dhe platformave harduerike. WebAssembly ofron nj\u00eb kod nd\u00ebrmjet\u00ebs universalis t\u00eb nivelit t\u00eb ul\u00ebt q\u00eb nuk varet nga shfletuesi p\u00ebr t\u00eb ekzekutuar aplikacione t\u00eb kompiluar nga gjuh\u00eb t\u00eb ndryshme programuese. Fal\u00eb angazhimit t\u00eb JIT p\u00ebr WebAssembly, \u00ebsht\u00eb e mundur t\u00eb arrihet nj\u00eb nivel performance af\u00ebr kodit natyror. <\/p>\n
Teknologjia WebAssembly mund t\u00eb p\u00ebrdoret p\u00ebr t\u00eb ekzekutuar n\u00eb shfletues detyra q\u00eb k\u00ebrkojn\u00eb performanc\u00eb t\u00eb lart\u00eb, si\u00e7 jan\u00eb kodimi i videove, p\u00ebrpunimi i z\u00ebrit, manipulimi i grafik\u00ebs dhe 3D, zhvillimi i loj\u00ebrave, operacionet kriptografike dhe llogaritjet matematikore duke organizuar ekzekutimin n\u00eb shfletues t\u00eb kodit t\u00eb shkruar n\u00eb gjuh\u00eb t\u00eb kompilueshme, si C\/C++. <\/p>\n
Mes detyrave kryesore t\u00eb WebAssembly theksohet sigurimi i transportueshm\u00ebris\u00eb, parashikueshm\u00ebris\u00eb s\u00eb sjelljes dhe identitetit t\u00eb ekzekutimit t\u00eb kodit n\u00eb platforma t\u00eb ndryshme. Koh\u00ebt e fundit, WebAssembly po promovoj\u00eb gjithashtu si nj\u00eb platform\u00eb universale p\u00ebr ekzekutimin e sigurt t\u00eb kodit n\u00eb \u00e7do infrastruktur\u00eb, sistem operativ dhe pajisje, duke mos u kufizuar vet\u00ebm n\u00eb shfletues. <\/p>\n
W3C publikoi tri specifikime preliminare t\u00eb WebAssembly 2.0: <\/p>\n
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WebAssembly Core \u2014 p\u00ebrshkruan nj\u00eb makin\u00eb virtuale t\u00eb ul\u00ebt p\u00ebr ekzekutimin e kodit t\u00eb nd\u00ebrmjet\u00ebm WebAssembly. Burimet e lidhura me WebAssembly ofrohen n\u00eb formatin \u201c.wasm\u201d, e ngjashme me skedar\u00ebt \u201c.class\u201d n\u00eb Java dhe p\u00ebrmbajn\u00eb t\u00eb dh\u00ebna statike dhe segmente kodo p\u00ebr t\u00eb punuar me k\u00ebto t\u00eb dh\u00ebna. <\/li>\n
WebAssembly JavaScript Interface \u2014 ofron API p\u00ebr integrim me JavaScript. Lejon marrjen e vlerave dhe kalimin e parametrave n\u00eb funksionet WebAssembly. Ekzekutimi i WebAssembly p\u00ebrputhet me modelin e siguris\u00eb s\u00eb JavaScript dhe \u00e7do nd\u00ebrveprim me sistemin kryesor zhvillohet n\u00eb p\u00ebrputhje me ekzekutimin e kodit JavaScript. <\/li>\n
WebAssembly Web API \u2014 p\u00ebrcakton nj\u00eb nd\u00ebrfaqe programore mbi mekanizmin Promise p\u00ebr k\u00ebrkimin dhe ekzekutimin e burimeve \u201c.wasm\u201d. Formati i burimeve WebAssembly \u00ebsht\u00eb optimizuar p\u00ebr fillimin e ekzekutimit, duke mos pritur ngarkimin e plot\u00eb t\u00eb skedarit, \u00e7ka ndihmon n\u00eb rritjen e p\u00ebrgjegjshm\u00ebris\u00eb s\u00eb aplikacioneve web. <\/ul>\n
Kryesore ndryshimet n\u00eb WebAssembly 2.0, n\u00eb krahasim me versionin e par\u00eb t\u00eb standardit: <\/p>\n
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P\u00ebrkrahja e tipit vektorial v128 dhe instrukcioneve t\u00eb lidhura vektoriale, duke lejuar ekzekutimin paralel t\u00eb operacioneve mbi disa vlera numerike (SIMD, single instruction multiple data).\n
Mund\u00ebsia e importit dhe eksportit t\u00eb variablave global\u00eb t\u00eb ndryshuesh\u00ebm (mutable), duke lejuar p\u00ebrdorimin e lidhjes globale p\u00ebr vlera t\u00eb tilla si treguesit e stack n\u00eb C++.\n
Instruksione t\u00eb reja p\u00ebr konvertimin e tipit float n\u00eb int, t\u00eb cilat n\u00eb vend q\u00eb t\u00eb gjenerojn\u00eb nj\u00eb p\u00ebrjashtim n\u00eb raste mbushjeje, kthejn\u00eb vler\u00ebn minimale ose maksimale t\u00eb mundshme (e nevojshme p\u00ebr SIMD).\n
Instruksione p\u00ebr zgjerimin e shenj\u00ebs s\u00eb numrave t\u00eb plot\u00eb (rritja e numrit me ruajtjen e shenj\u00ebs dhe vler\u00ebs).\n
Mb\u00ebshtetje p\u00ebr kthimin e disa vlerave n\u00ebp\u00ebrmjet blloqeve dhe funksioneve (p\u00ebrve\u00e7 kalimit t\u00eb disa parametrave n\u00eb funksione).\n
Implementimi i funksioneve JavaScript BigInt64Array dhe BigUint64Array p\u00ebr konvertimin midis tipit JavaScript BigInt dhe p\u00ebrfaq\u00ebsimit t\u00eb numrave t\u00eb plot\u00eb 64-bit n\u00eb WebAssembly.\n
Mb\u00ebshtetje p\u00ebr tipet referenc\u00eb (funcref dhe externref) dhe instruksionet e lidhura me to (select, ref.null, ref.func dhe ref.is_null).\n
Instruksione memory.copy, memory.fill, memory.init dhe data.drop p\u00ebr kopjimin e t\u00eb dh\u00ebnave midis hap\u00ebsirave t\u00eb memories dhe pastrimin e rajoneve t\u00eb memories.\n
Instruksione p\u00ebr qasje dhe ndryshim direkt t\u00eb tabelave (table.set, table.get, table.size, table.grow). Mund\u00ebsia p\u00ebr krijimin, importimin dhe eksportimin e disa tabelave n\u00eb nj\u00eb modul. Funksionet e kopjimit\/zgjerimit t\u00eb tabelave n\u00eb m\u00ebnyr\u00eb grumbuj (table.copy, table.init dhe elem.drop). <\/ul>\n