Nim · Medium

Lesson 1 · On the house

Templates

Code substitution with template, untyped parameters, hygiene, and when to use them.

Lesson 2

Macro basics

Inspect syntax with dumpTree, generate code with quote do, and macros that take untyped arguments.

Lesson 3

Object variants

Tagged unions with case objects, exhaustive handling, and field access checks.

Lesson 4

Closures and proc types

First-class procs, closure capture, proc type annotations, and the sugar => / -> syntax.

Lesson 5

Memory: ARC, ORC, and move semantics

Deterministic reference counting, cycle collection, sink and lent, and avoiding copies.

Lesson 6

Compile-time execution

const procs, static blocks, when, static parameters, and lookup tables built at compile time.

Lesson 7

Concepts

Structural type constraints with concept, and generic procs that accept any matching type.

Lesson 8

async and await

std/asyncdispatch: async procs, Future, await, all, sleepAsync, and waitFor.

Lesson 9

Threads and channels

std/typedthreads, createThread, joinThreads, Channel for messaging, and Lock for shared state.

Lesson 10

JSON

std/json: parseJson, field access, to/% for object conversion, and pretty printing.