Modular Programming

Export#

Cafe supports export of variables and functions using export keyword in global scope.

Every variable and function is private by default unless it is marked as ‘export’.

Variables and functions can be marked as export at the time of declaration.

Syntax

export  [ identifier ];
export [ function_declaration | variable_declaration ];

Example

# Save in a File name export.cafe
export var a = func(){
    return "Hello";
};

Cafe module can import all the exported variables and functions from the specified module.

All Imported modules are executed transitively at runtime & cyclic dependency will flag runtime error.

Note: The .class file of a module at module_path should be available while running current module.

Syntax

import [ exported_identifier(,exported_identifier)* | * ] [as identifier] from “module_path”;

Example

import a from "export";

func test(){
    return a();
}