Method set

classpath/java/lang/reflect/Field.java:202–263

(Object instance, Object value)

  }

  public void set(Object instance, Object value)
    throws IllegalAccessException
  {
    Object target;
    if ((vmField.flags & Modifier.STATIC) != 0) {
      target = vmField.class_.staticTable;
    } else if (Class.isInstance(vmField.class_, instance)) {
      target = instance;
    } else {
      throw new IllegalArgumentException();
    }

    if (! matchType(value)) {
      throw new IllegalArgumentException();
    }

    Classes.initialize(vmField.class_);

    switch (vmField.code) {
    case ByteField:
      setPrimitive(target, vmField.code, vmField.offset, (Byte) value);
      break;

    case BooleanField:
      setPrimitive
        (target, vmField.code, vmField.offset, ((Boolean) value) ? 1 : 0);
      break;

    case CharField:
      setPrimitive(target, vmField.code, vmField.offset, (Character) value);
      break;

    case ShortField:
      setPrimitive(target, vmField.code, vmField.offset, (Short) value);
      break;

    case IntField:
      setPrimitive(target, vmField.code, vmField.offset, (Integer) value);
      break;

    case LongField:
      setPrimitive(target, vmField.code, vmField.offset, (Long) value);
      break;

    case FloatField:
      setPrimitive(target, vmField.code, vmField.offset,
                   Float.floatToRawIntBits((Float) value));
      break;

    case DoubleField:
      setPrimitive(target, vmField.code, vmField.offset,
                   Double.doubleToRawLongBits((Double) value));
      break;

    case ObjectField:
      setObject(target, vmField.offset, value);
      break;