use Hadrian to see if compiler compiles?
I'm currently doing some refactoring of the GHC sources, which involves moving definitions between modules. As a sanity check I want to compile often, so if I've broken anything (or have inadvertently created circular imports) I can find out quickly. I'm currently using ./hadrian/build -j but I really don't need to build libraries or a stage 2 compiler. I tried looking over `./hadrian/build --help`, but I'm not confident that I understand what's there. My best guess is ./hadrian/build -j stage0:lib:ghc Would that accomplish my goal? Norman ___ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
Re: use Hadrian to see if compiler compiles?
My recommendation: ./hadrian/ghci. The first time you run it, it may spin for a little while, but it will eventually deliver you to a GHCi prompt, with all of GHC loaded. (You can e.g. `:type splitTyConApp_maybe`, after `import GHC.Core.Type`.) At that point, :reload will be your dear friend. That's what I do when I'm doing e.g. module reorganization and care much more about "does it compile" than "does it work". Richard > On Jan 24, 2022, at 5:02 PM, Norman Ramsey wrote: > > I'm currently doing some refactoring of the GHC sources, which > involves moving definitions between modules. As a sanity check > I want to compile often, so if I've broken anything (or have inadvertently > created circular imports) I can find out quickly. I'm currently using > > ./hadrian/build -j > > but I really don't need to build libraries or a stage 2 compiler. > I tried looking over `./hadrian/build --help`, but I'm not confident > that I understand what's there. My best guess is > > ./hadrian/build -j stage0:lib:ghc > > Would that accomplish my goal? > > > Norman > > > ___ > ghc-devs mailing list > ghc-devs@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs ___ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
Re: use Hadrian to see if compiler compiles?
> My recommendation: ./hadrian/ghci. The first time you run it, it may spin > for a little while, but it will eventually deliver you to a GHCi prompt, > with all of GHC loaded. (You can e.g. `:type splitTyConApp_maybe`, after > `import GHC.Core.Type`.) At that point, :reload will be your dear friend. > That's what I do when I'm doing e.g. module reorganization and care much > more about "does it compile" than "does it work". Cool! Supposing I wanted to run just a little code that uses the GHC API. Would there be a way to load the Prelude and similar things into that GHCi, so it could know about Bool and IO and such things? Norman ___ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
Re: use Hadrian to see if compiler compiles?
> On Jan 25, 2022, at 2:15 PM, Norman Ramsey wrote: > > Cool! Supposing I wanted to run just a little code that uses the GHC API. > Would there be a way to load the Prelude and similar things into that GHCi, > so it could know about Bool and IO and such things? The GHCi that runs is your system's GHCi, so it has access to everything installed in your bootstrap GHC. However, I don't see a connection between your second sentence and your last sentence: that is, the GHCi will certainly know about Bool and IO, but I don't see how that helps with the GHC API. I have no idea how you would use the GHC API in this mode. My advice would be to use this trick to get quick feedback about compilation, and then once GHC compiles, use other more well-worn techniques to build it and test your application. Richard ___ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
