# Example 01: Hello World
#
# Demonstrates:
# - Basic program structure with main() function
# - Standard output using println()
# - Result@(T) return type (implicit wrapper around all return types)
# - Exit code conventions (0 = success)
#
# This is the simplest valid Sushi program. Every executable program
# must have a main() function that returns i32. Behind the scenes,
# all function return types are wrapped in Result@(T) for explicit
# error handling.

fn main() i32:
    # Every Sushi program starts with a main function that returns i32.
    # The i32 return type is implicitly wrapped as Result@(i32).
    # This allows consistent error handling across all functions.

    # println() outputs a line to stdout with a newline.
    println("Mostly Harmless")

    # All functions must explicitly return Result.Ok(value) or Result.Err().
    # For main(), returning Ok(0) indicates successful program execution.
    # Non-zero values indicate errors (following Unix convention).
    return Result.Ok(0)