Rust includes a module system for grouping code into logical groups, which may include structs, implementations, other modules etc. Module also give us the ability to manage module code’s visibility.<\/p>\n
There’s a couple of ways for declaring our modules.<\/p>\n
Option 1<\/strong><\/p>\n Assuming we’ve used cargo init<\/em> to create our project or simply laid out our code in the same way, then we’ll have a src<\/em> folder and within that we’ll create a folder named math<\/em> which will become our module name. Within math<\/em> we add a file named mod.rs<\/em><\/p>\n So here’s a very basic mod.rs<\/em> file<\/p>\n and here’s the main.rs<\/em> file<\/p>\n Option 2<\/strong><\/p>\n The second option is to name the module file math.rs<\/em> and this is stored at the same level as the main.rs<\/em> file, i.e.<\/p>\n Nested Modules<\/strong><\/p>\n We can also nest modules (modules within modules), for example<\/p>\n Rust includes a module system for grouping code into logical groups, which may include structs, implementations, other modules etc. Module also give us the ability to manage module code’s visibility. There’s a couple of ways for declaring our modules. Option 1 Assuming we’ve used cargo init to create our project or simply laid out our […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[191],"tags":[],"class_list":["post-7741","post","type-post","status-publish","format-standard","hentry","category-rust"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/7741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/comments?post=7741"}],"version-history":[{"count":5,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/7741\/revisions"}],"predecessor-version":[{"id":7756,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/posts\/7741\/revisions\/7756"}],"wp:attachment":[{"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/media?parent=7741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/categories?post=7741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/putridparrot.com\/blog\/wp-json\/wp\/v2\/tags?post=7741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\r\nsrc\r\n |--- math\r\n |--- mod.rs\r\n |--- main.rs\r\n<\/pre>\n
\r\npub fn add(a: i32, b: i32) -> i32 {\r\n a + b\r\n}\r\n<\/pre>\n\r\nmod math;\r\n\r\nfn main() {\r\n println!("{}", math::add(1, 2));\r\n}\r\n<\/pre>\n\r\nsrc\r\n |--- math.rs\r\n |--- main.rs\r\n<\/pre>\n
\r\npub mod nested {\r\n pub fn add(a: i32, b: i32) -> i32 {\r\n a + b\r\n }\r\n}\r\n\r\n\/\/ in use \r\n\r\nmod math;\r\n\r\nfn main() {\r\n println!("{}", math::nested::add(1, 2));\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"