Learn HASKELL with Real Code Examples

Compiler parses -> AST

AST -> Core intermediate representation

Core -> STG machine

STG -> GHC bytecode / native code

Runtime handles laziness & GC

Source -> Parser -> AST

AST -> Core IR

Core -> STG (spineless tagless G-machine)

GHC backend compiles -> native/bytecode

Pure functional modules

Monadic effect systems

Servant API combinators

Functional pipelines

Trading engines

Blockchain runtimes

Compilers

Research simulation pipelines

Purity and referential transparency

Strong static typing

Lazy evaluation

Mathematical elegance

Use STM for concurrency

Leverage parallelism via sparks

Use strict evaluation where needed

Scale with lightweight green threads

Move from mutable models to pure code

Refactor to monadic design

Use typeclasses instead of dynamic typing

Structure modules around pure functions