compiler.bl

// compiler.bl — Example compiler driver
//
// Demonstrates the pattern used by the Blink compiler to read a source
// file, process it, and write output. The real compiler entry point is
// src/blinkc_main.bl, which uses the compiler module's public API:
//
//   let program = compile_to_program(source_path, 1)
//   let _errs = check_types(program)
//   let c_output = generate(program)
//   write_file(out_path, c_output)
//
// This standalone example shows the arg parsing and file I/O pattern
// without depending on the compiler internals.

fn main() {
    if arg_count() < 2 {
        io.println("Usage: compiler <source.bl> [output.c]")
        io.println("  Compiles a Blink source file to C.")
        return
    }

    let source_path = get_arg(1)
    let source = read_file(source_path)

    io.println("Read {source.len()} bytes from {source_path}")

    if arg_count() >= 3 {
        let out_path = get_arg(2)
        write_file(out_path, source)
        io.println("Wrote output to {out_path}")
    } else {
        io.println(source)
    }
}