Tria

WARNING This is a development version Compiler is unstable and may break some code

An optimizing compiler for elixir.

How to use

1. Add a dependency

def deps do
  [
    {:tria, github: "hissssst/tria"}
  ]
end

2. Add a compiler and remove protocol consolidation

def project do
  [
    ...
    consolidate_protocols: false,
    compilers: [:erlang, :tria, :app]
  ]
end

3. mix compile && mix tria.warmup --available This compiles the deps, and warms up the cache of used functions

4. Project is ready to use now

Features

1. Constant evaluation. Plain Elixir and Erlang are unable to evaluate so-called remote call. Tria evalutes what can be evaluated in runtime

2. Enum fusion. Tria joins multiple consequent Enum or Stream calls to most optimal form.

3. map.field optimization. This construction is now 3 times faster

Reporting bugs

Just use mix tria.report "INSERT BUG TITLE HERE" and it will automatically open tracker with information about system and env prefilled

How to debug

export TRIA_DEBUG=1
export TRIA_TRACE="Module.function/1,Foo.bar/2"

This will print all steps of compilation of the Module.function/arity function . Each step will be named and will be possible to grep in the exact same format. Plus, TRIA_DEBUG increases verbosity of compiler and generates tria_global_context.ex file which contains the final version of the code after all optimizations.

Tria language

Tria is a language, it differs from Elixir, but it is mostly Elixir and it is represented similary to Macro.t(). Tria is designed specifically for optimizing transformations, like any IR language and has a specific Single Static Assignment form translator.