Swift编译器

Some use of Y Combinator in Swift. And other Combinators K, S, I.

co-inductive type in Swift, which is somewhat impossible (but not really).

Thisisthefinalstageforcompilingasourcefiletoanobjectoranassemblyfile.Inpreviouspost,wegotamodulecons

AfterwegetMachineInstructions,MachineInstrs,thecompilerwilloptimizeittoproduceOptimizedMachineInstrs

TherearethreewaystodoInstructionSelection,SelectionDAG-based,Fast-ISel,andGlobalInstructionSelection

Inpreviouspost,wehavegotthecanonicalSIL,soitistimetolowerSILandtogenerateLLVMIR.Inthispost,theresult

Inpreviouspost,wegettherawsilofourhelloworldexample.Inthispost,wegoontogetthecanonicalsilfromthatraw

Inpreviouspost,WTSC7:SemanticAnalysis,wehavegettheType-annotatedASTforourhelloworldexampleshowasfoll

InpreviousPaserpost,wegettheASTofourhelloworldexampleasfollowing:Andourhelloworldexamplelookslikethi

Fromthesetwoquotationsabove,weknowthatthereisagrammarforswiftprogramminglanguage,andarecursive-desce

With-driver-print-jobsoptiontoswiftc,wecanseeeachjobneedtobeendownbeforewegetthefinalexecutablebinar

Afterwegetthejobs,thecompilationisgoingtopeformtheminitsswift::driver::Compilation::performJobsmetho

Inthepreviouspost,weknowhowthecompilerdriverconstructactions,afterthat,itwillcalltheswift::Driver::b

Inpreviouspost,weknowhowtheswiftcompilerreceviesitsargumentinllvm::opt::InputArgListfromcommandline.

Weneedsometermsbeforewemoveonintooptionparsing.Whatarecommandline,command,option,argument?Asweknow,w

TheSwiftCompilerdoessomethingmorethantransformingsourcecodeintoexecutableorlibraries.Itneedstointera

PreviousonSetupplayground,wefollowinstructionsfromswiftopensourceprojecttobuildanswiftcompilerasanex

BeforewegetintothecoreprocessofcompilationofSwiftCompiler,weneedsomesetupsforourplaygroundwhichfacil

ThefollowingdiagramshowstheoverviewcomponentsofSwiftcompiler.Agreyblockindicatesananctionwhichtransf

Purpose:ItisforabeginnerwhosomehowknowaboutprogrammingandcompilertoknowhowtheSwiftcompilerworks.Inot