def in.convert

bend-osdev-acpi@0.1.1.0 · aml_interp.bend:686

import Base
import bend-osdev-word64@0.1.1.0/word64.bend as W
import bend-osdev-bytes@0.1.1.0/bytes.bend as B
import bend-osdev-acpi@0.1.1.0/error.bend as E
import bend-osdev-acpi@0.1.1.0/aml_value.bend as V

686# the value v stored where a Name holds old: converted to old type when
687# old is an Integer, a String or a Buffer (a Buffer keeps its length)
688def in.convert(+wide: Bool, old: V.AmlValue, +v: V.AmlValue) -> Result<&2, &2, E.AcpiError, V.AmlValue>:
689  match old:
690    case V.AmlInt{x}:
691      Result.map(&2, &2, E.AcpiError, W.W64, V.AmlValue, y => V.AmlInt{y}, V.AmlValue.to_int(wide, v))
692    case V.AmlStr{s}:
693      Result.map(&2, &2, E.AcpiError, B.Octets, V.AmlValue, t => V.AmlStr{t}, V.AmlValue.to_str(wide, v))
694    case V.AmlBuf{+b}:
695      Result.map(&2, &2, E.AcpiError, B.Octets, V.AmlValue, t => V.AmlBuf{in.fit.buf(B.Octets.len(b), t)}, V.AmlValue.to_buf(wide, v))
696    case _:
697      Done{v}