codesnips

macros

rust 
macro_rules! create_function {
    ($func_name:ident) => {
        fn $func_name() {
            println!("Called {}", stringify!($func_name));
        }
    };

Declarative macros (macro_rules!) for code generation

rust macros metaprogramming
by Marcus Chen 1 tab
php 
<?php

namespace App\Providers;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Collection;

Laravel macro methods for extending framework

laravel macros extensibility
by Carlos Mendez 3 tabs
rust 
#[derive(Debug, Clone, PartialEq)]
struct Point {
    x: i32,
    y: i32,
}

Derive macros for automatic trait implementations

rust macros traits
by Marcus Chen 1 tab
bash 
# Install
cargo install cargo-expand

# Expand entire crate
cargo expand

cargo-expand to inspect macro expansions

rust macros debugging
by Marcus Chen 1 tab
rust 
// In a proc-macro crate:
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, DeriveInput};

#[proc_macro_derive(MyTrait)]

Procedural macros for custom derives and attributes

rust macros metaprogramming
by Marcus Chen 1 tab