// Result-returning variants demo (R methods)
// Run:
//   NYASH_CLI_VERBOSE=1 ./target/release/nyash --backend vm examples/py_result_chain_demo_fixed.hako

static box Main {
  init { console }
  
  main() {
    me.console = new ConsoleBox()
    
    local py, mR, fR, rR, badR
    py = new PyRuntimeBox()
    
    // Use R variants to get Result boxes
    me.console.log("Testing importR...")
    mR = py.importR("math")
    me.console.log("importR result=", mR.toString())
    
    me.console.log("Testing getattrR on sqrt...")
    fR = mR.getattrR("sqrt")
    me.console.log("getattrR result=", fR.toString())
    
    me.console.log("Testing callR with 9...")
    rR = fR.callR(9)
    me.console.log("callR result=", rR.toString())
    
    // Error example: getattrR on missing attribute
    me.console.log("Testing error case...")
    badR = mR.getattrR("no_such_attr")
    me.console.log("missing getattrR=", badR.toString())
    
    return 0
  }
}