kc3-lang/kc3/libc3/fn.c

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• Hash : e8360897
  Author : Thomas de Grivel
  Date : 2024-01-10T12:20:21
  

  s8 -> char

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• libc3/fn.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.
   */
  #include "assert.h"
  #include <err.h>
  #include <stdlib.h>
  #include <string.h>
  #include <strings.h>
  #include "arg.h"
  #include "binding.h"
  #include "buf.h"
  #include "buf_parse.h"
  #include "fn.h"
  #include "fn_clause.h"
  #include "list.h"
  #include "tag_type.h"
  
  void fn_clean (s_fn *fn)
  {
    assert(fn);
    fn_clause_delete_all(fn->clauses);
  }
  
  void fn_delete (s_fn *fn)
  {
    fn_clean(fn);
    free(fn);
  }
  
  s_fn * fn_init (s_fn *fn)
  {
    assert(fn);
    *fn = (s_fn) {0};
    return fn;
  }
  
  s_fn * fn_init_1 (s_fn *fn, char *p)
  {
    s_buf buf;
    uw len;
    sw r;
    assert(fn);
    assert(p);
    len = strlen(p);
    buf_init(&buf, false, len, (char *) p);
    buf.wpos = len;
    r = buf_parse_fn(&buf, fn);
    if (r < 0 || (uw) r != len)
      errx(1, "fn_init_1: buf_parse_fn(%s): %ld != %lu", p, r, len);
    return fn;
  }
  
  s_fn * fn_init_cast (s_fn *fn, const s_tag *tag)
  {
    switch (tag->type) {
    case TAG_FN:
      return fn_init_copy(fn, &tag->data.fn);
    default:
      break;
    }
    err_write_1("fn_init_cast: cannot cast ");
    err_write_1(tag_type_to_string(tag->type));
    err_puts(" to Fn");
    assert(! "fn_init_cast: cannot cast to Fn");
    return NULL;
  }
  
  s_fn * fn_init_copy (s_fn *fn, const s_fn *src)
  {
    fn_clause_copy(src->clauses, &fn->clauses);
    fn->macro = src->macro;
    fn->special_operator = src->special_operator;
    return fn;
  }
  
  s_fn * fn_new (void)
  {
    s_fn *fn;
    if (! (fn = calloc(1, sizeof(s_fn))))
      err(1, "fn_new: calloc");
    fn_init(fn);
    return fn;
  }
  
  s_fn * fn_new_copy (const s_fn *src)
  {
    s_fn *fn;
    assert(src);
    if (! (fn = calloc(1, sizeof(s_fn))))
      err(1, "fn_new_copy: calloc");
    return fn_init_copy(fn, src);
  }
  

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