Receitas binárias

adopt Arcane.Estrutura as Est
adopt Arcane.Bytes as Bytes

P := Est.definir("P", [["id", "u16"], ["nome", "char", 6]], "rede", yes)
out Bytes.despejo(P({"id": 258, "nome": "ana"}).bytes())
assert Bytes.hex(P({"id": 258, "nome": "ana"}).bytes()).starts_with("0102616e61")

adopt Arcane.Estrutura as Est

Rgba := Est.campos_de_bits("Rgba", [["r", 8], ["g", 8], ["b", 8], ["a", 8]], 32)
laranja := Rgba.juntar({"r": 255, "g": 165, "b": 0, "a": 255})
assert laranja is 0xFFA500FF
assert Rgba.ler(laranja)["g"] is 165

adopt Arcane.Estrutura as Est

Nota := Est.definir("Nota", [["aluno", "u16"], ["nota", "u8"]], "rede", yes)
bloco := Est.bloco(Nota.tamanho * 3)
dados := [[1, 7], [2, 10], [3, 4]]
cycle i in range(3):
    Nota.escrever(bloco, {"aluno": dados[i][0], "nota": dados[i][1]}, i * Nota.tamanho)

// lê, ordena os VALORES, e regrava — o bloco continua o mesmo
lidos := [Nota.ler(bloco, i * Nota.tamanho) cycle i in range(3)]
ordenados := sorted(lidos, lambda n: -n["nota"])
cycle i in range(3):
    Nota.escrever(bloco, ordenados[i], i * Nota.tamanho)
assert [j["aluno"] cycle j in Est.janelas(bloco, Nota)] is [2, 1, 3]