Commit 390709b024c1f1181a786acf5a2b01adcb217049

Authored by Georg Hopp
1 parent 14bccb3b

Docs and links

Showing 1 changed file with 53 additions and 0 deletions
  1 +# Here I collect some interesting links.
  2 +
  3 +## cargo environment
  4 +
  5 +Currently I always build all dependencies within th projects own .cargo subdir
  6 +by setting the environment variable CARGO_HOME.
  7 +
  8 + export CARGO_HOME=./.cargo
  9 +
  10 +Actually I am quite unsure if that is really a good idea because this results
  11 +in a lot of rebuilds for each new project.
  12 +
  13 +## Implement Monads with rust.
  14 +
  15 +Which is currently difficult through impossible, but might be feasible with
  16 +some small additions to the rust type system, namely
  17 +«(generic) associated traits.»
  18 +
  19 +[Read here](https://varkor.github.io/blog/2019/03/28/idiomatic-monads-in-rust.html)
  20 +
  21 +### Is impl Trait what we needed?
  22 +
  23 +A new language feature which sounded a bit like the needed one for above is:
  24 +
  25 +[impl Trait](https://medium.com/@iopguy/impl-trait-in-rust-explanation-efde0d94946a)
  26 +
  27 +Crossreading it a bit seems to indicate that this is not like the above needed
  28 +language feature.
  29 +
  30 +## WASM ... on gentoo ...
  31 +
  32 +Right now rust is not really a first class citizen within the gentoo eco
  33 +system. For that reason at least when compiling rust with the `system-llvm`
  34 +use flag some manual preparations are needed.
  35 +
  36 +### rustwasm tutorial
  37 +
  38 +[rustwasm](https://rustwasm.github.io/book/introduction.html)
  39 +
  40 +### location of rustlib ...
  41 +
  42 +`wasm-pack` expects the wasm runtime under /usr/lib/rustlib/ but a gentoo
  43 +installation puts it under /usr/lib/rust-1.39.0/rustlib/. To come around this
  44 +issue I just created a symlink.
  45 +
  46 +### Missing lld
  47 +
  48 +Again `wasm-pack` searches for llvm-lld or rust-lld for the link phase. This
  49 +is currently not a dependency for llvm with WASM support, so I installed it
  50 +manually. Finally you have to tell rustc to use lld as linker via this
  51 +environment variable:
  52 +
  53 + export RUSTFLAGS="-C linker=lld"
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