Createirƙiri yarenku na shirye-shirye (I)

Bayan rubuta labarin farko akan yadda zaka kirkiro maka tsarin aikiWani ya gaya mani idan zan iya yin labarin akan yadda ake kirkirar yare. Da farko ban maida hankali sosai ba, amma yanzu da wasu hanyoyin na kara koyon abubuwa da yawa game da kirkirar yarukan shirye-shirye. Don haka muyi yare ne na shirye-shirye, mai sauƙin sakawa a cikin wasu shirye-shiryen kuma wannan yana aiki tare da injin kama-da-wane wanda shima zamu tsara shi. A yau dole ne muyi mafi mahimmin inji mai inganci.

Kila kuna mamaki: «Injin kama-da-wane? Amma hakan ba shi da wahala sosai kuma hakan yana rage shirin? " Ya bambanta, inji mai sauƙi mai sauƙi yana da sauƙi da sauri. Na zabi Rust azaman yare ga na'ura mai rumfa. Amma menene Rust?

Rust shigar a cikin Linux A hanya mai sauki. Koyaya, babu wani kunshin hukuma. Masu amfani da Ubuntu zaka iya kara wadannan biyun PPA: ppa: hansjorg / tsatsa  y ppa: cmrx64 / kaya, masu amfani da Arch iya amfani da AUR (kaya-git shine kunshin da yake girka komai). Sauran na iya amfani da:

curl -s https://static.rust-lang.org/rustup.sh | sudo sh

Yaya na'urar kera mai aiki?

Idan kun san yadda mai tara duniya yake aiki daidai yake, tare da tari ko tari. Idan ba haka ba, zan bayyana muku shi. Bari muyi tunanin lambar mai zuwa:

buga 2 + 3

Kwamfuta ba ta fahimci abin da 2 + 3 ke nufi ba, kuma ba ta san abin da za a bi ba. Kwamfutoci suna aiki tare da batura ko tarin abubuwa waɗanda aka tara bayanai a ciki kuma ake ci gaba da ciro su. Wannan lambar a cikin injinmu na kama-da-wane ya kamata yayi kama da wannan:

Tura 2 Tura 3 Dara Buga

Ainihin zamu sanya 2 akan tari a saman, 3 kuma. ADD zai ja (watau cire shi daga jakar kuma ya sami kimarsa) abubuwa 2 na ƙarshe akan tarin kuma ƙara sakamakon a saman tari. PRINT zai ɗauki abu na ƙarshe akan tarin kuma yayi amfani dashi don nuna mana. Yanzu bari muyi hakan a ciki Rust.

Dole ne mu fara ayyana yare don Bayarwa, Za mu iya amfani da wanda ya kasance kamar wanda yake ciki Java ko CLR na .NET / Mono, amma za mu ƙirƙiri mafi mahimmanci.

https://gist.github.com/a01de8904fd39a442c20

Muna amfani da sanarwa na hexadecimal ga kowane wa'azi. A saman mun sanya # [wadatarwa (DagaPrimitive)], shine kebantaccen tsari na Rust kuma zai taimaka mana daga baya mu iya kwatanta lissafi da baiti kai tsaye.

Yanzu dole ne muyi aiki wanda ke aiwatar da kowane ɗayan umarnin. Don wannan dole ne mu karanta baiti kuma mu gwada shi da umarnin da muke da shi a cikin lissafin. Idan kun sami wanda ya wanzu, dole ne ku aiwatar da aikinku.

https://gist.github.com/8950ce212a2de2f397f9

Muna yin hakan don karanta kowane baiti daban-daban kuma don aiwatar da su:

https://gist.github.com/12e24a1f0dd65e4cd65d

Kamar yadda kake gani, muna rarrabewa idan an bamu PUSH command (umarninmu na INTEGER) kafin haka, za a ɗauki baiti na gaba gaba ɗaya zuwa tari. A can muna amfani da ayyuka biyu waɗanda ban koya muku ba, kai.pop () y turawa (), wanda a bayyane yake ke kula da rikodin tari.

https://gist.github.com/54147f853a8a2b8c01d9

Ba su da rikitarwa sosai, amma aikin pop yana da hanyoyin gano kuskure. A gaskiya, a Rust, idan muka cire wadancan hanyoyin to zai bamu kuskuren hadawa. Yanzu kawai dole ne muyi kira a cikin shirin Perin (na'urar mu ta kamala) kuma aiwatar da bytecode.

https://gist.github.com/99b1ab461318b3a644d0

Ana iya karanta wannan lambar bytecode daga fayil, amma a nan don sauƙi Na ajiye shi a cikin canji. Idan muka aiwatar dashi, zai bamu sakamakon da muke tsammani:

Perin v0.1 Perin VM yana aiwatar da FlopFlip bytecode Fara PerinVM misali PerinVM v0.1.0 erimar mai amfani 5

Duk lambar tana nan a GitHub karkashin Lasisin Apache 2.0: https://github.com/AdrianArroyoCalle/perin. Don tattarawa dole ne su sami ofishin shigar da sanya:

cajin gini && ./target/main

A babi na gaba za mu ga ƙarin game da yaren shirye-shiryenmu.