Imports and Modules

Vexel programs can be split across multiple source files. The import statement brings the declarations from another file into the current scope.

Basic Import

Use import followed by a quoted file path (relative to the current file). All top-level declarations in the imported file become available.

# math.vx
fn square(n: int) -> int:
    return n * n

fn cube(n: int) -> int:
    return n * n * n

# main.vx
import "math.vx"

fn main():
    print(square(4))   # 16
    print(cube(3))     # 27

Use as to bind the imported module to a namespace alias. All declarations from the file are then accessed through that alias using dot notation.

import "math.vx" as math

fn main():
    print(math.square(5))   # 25
    print(math.cube(2))     # 8

Vexel provides built-in modules that are always available without a file path.

sdl SDL2 graphics and window management. Requires --sdl2 compile flag.