kc3-lang/kc3/libkc3/callable.c

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• Hash : 0059a8ae
  Author : Thomas de Grivel
  Date : 2024-11-19T15:32:37
  

  fix fn env frame

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• libkc3/callable.c

• /* kc3
   * Copyright 2022,2023,2024 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.
   */
  #include <unistd.h>
  #include "alloc.h"
  #include "assert.h"
  #include "callable.h"
  #include "cfn.h"
  #include "fn.h"
  #include "tag.h"
  
  void callable_delete (s_callable *callable)
  {
    assert(callable);
    /* FIXME: lock callable lock. */
    if (callable->reference_count <= 0)
      goto clean;
    if (--callable->reference_count > 0)
      goto clean;
    switch (callable->type) {
    case CALLABLE_CFN: cfn_clean(&callable->data.cfn); break;
    case CALLABLE_FN:  fn_clean(&callable->data.fn);   break;
    case CALLABLE_VOID:                                break;
    }
    /* FIXME: unlock callable lock. */
    free(callable);
    return;
   clean:
    /* FIXME: unlock callable lock. */
    return;
  }
  
  s_callable * callable_new (void)
  {
    s_callable *callable;
    if (! (callable = alloc(sizeof(s_callable))))
      return NULL;
    return callable;
  }
  
  s_callable * callable_new_copy (s_callable *src)
  {
    s_callable *tmp;
    if (! (tmp = callable_new()))
      return NULL;
    tmp->type = src->type;
    switch (src->type) {
    case CALLABLE_CFN:
      if (! cfn_init_copy(&tmp->data.cfn, &src->data.cfn))
        goto ko;
      break;
    case CALLABLE_FN:
      if (! fn_init_copy(&tmp->data.fn, &src->data.fn))
        goto ko;
      break;
    case CALLABLE_VOID:
      break;
    }
    tmp->reference_count = 1;
    return tmp;
   ko:
    free(tmp);
    return NULL;
  }
  
  s_callable * callable_new_ref (s_callable *callable)
  {
    assert(callable);
    assert(callable->reference_count > 0);
    callable->reference_count++;
    return callable;
  }
  
  void p_callable_clean (p_callable *callable)
  {
    callable_delete(*callable);
  }
  
  p_callable * p_callable_init (p_callable *callable)
  {
    p_callable tmp;
    if (! (tmp = callable_new()))
      return NULL;
    *callable = tmp;
    return callable;
  }
  p_callable * p_callable_init_cast (p_callable *callable,
                                     const s_sym * const *type,
                                     const s_tag *tag)
  {
    const s_sym *tag_type_;
    (void) callable;
    switch (tag->type) {
    case TAG_CALLABLE:
      err_puts("p_callable_init_cast: not implemented.");
      assert(! "p_callable_init_cast: not implemented.");
      return NULL;
    default:
      break;
    }
    err_write_1("p_callable_init_cast: cannot cast from ");
    tag_type(tag, &tag_type_);
    err_inspect_sym(&tag_type_);
    err_write_1(" to ");
    err_inspect_sym(type);
    err_write_1(" aka Callable.\n");
    assert(! "p_callable_init_cast: cannot cast to Callable.");
    return NULL;
  }
  
  p_callable * p_callable_init_copy (p_callable *callable,
                                     p_callable *src)
  {
    p_callable tmp;
    if (! (tmp = callable_new_ref(*src)))
      return NULL;
    *callable = tmp;
    return callable;
  }
  

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