// Test mixed string and slice usage
fn test_string_and_slice_params(message: str, data: []u8) str {
    return message;
}

fn test_string_slice_conversion() []u8 {
    const text: str = "convert me";
    const bytes: []u8 = text;
    return bytes;
}

fn test_slice_functions(input: []u8) []u8 {
    return input;
}

fn test_string_functions(input: str) str {
    return input;
}

// Test complex slice types — empty literal yields {ptr=null, len=0}.
fn test_i8_slice() []i8 {
    var data: []i8 = [];
    return data;
}

fn test_i16_slice() []i16 {
    var data: []i16 = [];
    return data;
}

fn test_i32_slice() []i32 {
    var data: []i32 = [];
    return data;
}

// Test slice assignment
fn test_slice_assignment() []u8 {
    const original: []u8 = "original";
    var copy: []u8 = original;
    return copy;
}