map_string_string.ko

module map_string_string {
    meta {
        description: "Demonstrates Map<String, String> operations"
        purpose: "Example of generic Map with String keys and values"
        version: "1.0.0"
    }

    fn main() {
        let m: Map<String, String> = map_new()

        // Insert key-value pairs
        map_insert(m, "name", "Kodo")
        map_insert(m, "lang", "Rust")
        map_insert(m, "type", "compiler")

        // Length
        let len: Int = map_length(m)
        println(f"Map has {len} entries")

        // Get values
        let name: String = map_get(m, "name")
        println(f"name = {name}")

        let lang: String = map_get(m, "lang")
        println(f"lang = {lang}")

        // Contains key
        let has_name: Bool = map_contains_key(m, "name")
        if has_name {
            println("Has key 'name': true")
        }

        let has_missing: Bool = map_contains_key(m, "missing")
        if has_missing {
            println("ERROR: should not have 'missing'")
        } else {
            println("Has key 'missing': false")
        }

        // Overwrite
        map_insert(m, "lang", "Kodo")
        let updated: String = map_get(m, "lang")
        println(f"updated lang = {updated}")

        // Remove
        let removed: Bool = m.remove("type")
        if removed {
            println("Removed 'type': true")
        }

        let final_len: Int = map_length(m)
        println(f"Final length: {final_len}")
    }
}