Version: 1.1.0

Compile-time cheat sheet

Facts you give the compiler.

Essentials

• Parameters live in square brackets.
• alias names a compile-time constant or type.
• comptime if and comptime for run during compilation.
• comptime assert fails the build.
• A parameter used in ordinary code becomes a runtime constant.

Example

alias N = 4
fn main():
    comptime assert N == 4
    print(N)

Keep in mind

Compile-time code must be free of I/O that depends on a particular machine state unless that state is the target itself.