kc3-lang/kc3/libc3/sw.c

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• Hash : be7f7d25
  Author : Thomas de Grivel
  Date : 2023-10-27T14:56:11
  

  wip cast

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• libc3/sw.c

• /* c3
   * Copyright 2022,2023 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  /* Gen from s.h.in BITS=W bits=w */
  #include <assert.h>
  #include <err.h>
  #include "integer.h"
  #include "tag.h"
  #include "sw.h"
  
  sw * sw_cast (s_tag *tag, sw *dest)
  {
    switch (tag->type) {
    case TAG_VOID:
      *dest = 0;
      return dest;
    case TAG_ARRAY:
      goto ko;
    case TAG_BOOL:
      *dest = tag->data.bool ? 1 : 0;
      return dest;
    case TAG_CALL:
      goto ko;
    case TAG_CFN:
      goto ko;
    case TAG_CHARACTER:
      *dest = (sw) tag->data.character;
      return dest;
    case TAG_F32:
      *dest = (sw) tag->data.f32;
      return dest;
    case TAG_F64:
      *dest = (sw) tag->data.f64;
      return dest;
    case TAG_FACT:
    case TAG_FN:
    case TAG_IDENT:
      goto ko;
    case TAG_INTEGER:
      *dest = integer_to_sw(&tag->data.integer);
      return dest;
    case TAG_SW:
      *dest = (sw) tag->data.sw;
      return dest;
    case TAG_S64:
      *dest = (sw) tag->data.s64;
      return dest;
    case TAG_S32:
      *dest = (sw) tag->data.s32;
      return dest;
    case TAG_S16:
      *dest = (sw) tag->data.s16;
      return dest;
    case TAG_S8:
      *dest = (sw) tag->data.s8;
      return dest;
    case TAG_U8:
      *dest = (sw) tag->data.u8;
      return dest;
    case TAG_U16:
      *dest = (sw) tag->data.u16;
      return dest;
    case TAG_U32:
      *dest = (sw) tag->data.u32;
      return dest;
    case TAG_U64:
      *dest = (sw) tag->data.u64;
      return dest;
    case TAG_UW:
      *dest = (sw) tag->data.uw;
      return dest;
    case TAG_LIST:
    case TAG_PTAG:
    case TAG_PTR:
    case TAG_QUOTE:
    case TAG_STR:
    case TAG_SYM:
    case TAG_TUPLE:
    case TAG_VAR:
      goto ko;
    }
    assert(! "sw_cast: unknown tag type");
    errx(1, "sw_cast: unknown tag type: %d", tag->type);
    return 0;
   ko:
    warnx("sw_cast: cannot cast %s to sw",
          tag_type_to_sym(tag->type)->str.ptr.ps8);
    return 0;
  }
  
  sw * sw_copy (const sw *src, sw *dest)
  {
    assert(src);
    assert(dest);
    *dest = *src;
    return dest;
  }
  

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