Phize

<?php
function my_get_template_part( $slug, $name = null, $vars = [] ) {
    do_action( 'get_template_part_' . $slug, $slug, $name );

    $templates = [];
    $name      = (string) $name;

    if ( $name !== '' ) {
        $templates[] = $slug . '-' . $name . '.php';
    }

Phize

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

// An example that injects the dependency into a mixin.
// by https://twitter.com/phize

// More simple way: @content injection
// http://sassmeister.com/gist/3686b8eb3462fef52013

Phize

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

// Polymorphic components with Sass.
// by https://twitter.com/phize
//
// Dependency Injection: http://sassmeister.com/gist/5122325c0c29889b91c3
// More simple DI: http://sassmeister.com/gist/3686b8eb3462fef52013

Phize

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

// An example that injects the dependency into your component.
// by https://twitter.com/phize

// @content injection:
// This simple way cannot define actual dependencies in your components,

Phize

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

// Sass: Type hinting with function.
// by https://twitter.com/phize

// Dependency Injection: @content injection
// http://sassmeister.com/gist/3686b8eb3462fef52013

Phize

// ----
// Sass (v3.3.8)
// Compass (v1.0.0.alpha.19)
// ----

// This is an example of building decoupled components with Sass
// by https://twitter.com/phize

// Dependency Injection: mixin injection
// http://sassmeister.com/gist/5122325c0c29889b91c3

Phize

// ----
// Sass (v3.3.9)
// Compass (v1.0.0.alpha.20)
// ----

// This is an example to define private mixin(s)/function(s).
// by https://twitter.com/phize

// If this is not a bug, it is a bit useful
// although there are no way to export private mixin(s)/function(s).