kc3-lang/kc3/libkc3/op.c

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• Hash : 72907a3f
  Author : Thomas de Grivel
  Date : 2025-03-04T16:09:13
  

  wip operators and struct/pstruct pass by ref
  

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• libkc3/op.c

• /* kc3
   * Copyright from 2022 to 2025 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 <stdlib.h>
  #include "alloc.h"
  #include "assert.h"
  #include "callable.h"
  #include "op.h"
  #include "sym.h"
  
  void op_clean (s_op *op)
  {
    assert(op);
    p_callable_clean(&op->callable);
  }
  
  void op_delete (s_op *op)
  {
    assert(op);
    if (op->ref_count <= 0) {
      err_puts("op_delete: invalid reference count");
      assert(! "op_delete: invalid reference count");
      return;
    }
    if (! --op->ref_count) {
      op_clean(op);
      free(op);
    }
  }
  
  s_op * op_init (s_op *op)
  {
    s_op tmp = {0};
    tmp.ref_count = 1;
    *op = tmp;
    return op;
  }
  
  s_op * op_init_cast (s_op *op, const s_sym * const *type, s_tag *src)
  {
    s_op *tmp;
    assert(op);
    assert(type);
    assert(*type);
    assert(src);
    if (!type || *type != &g_sym_KC3_Op)
      return NULL;
    switch (src->type) {
    case TAG_PTR:
      tmp = src->data.ptr.p;
      return op_init_copy(op, tmp);
    default:
      break;
    }
    err_puts("op_init_cast: cannot cast");
    assert(! "op_init_cast: cannot cast");
    return NULL;
  }
  
  s_op * op_init_copy (s_op *op, const s_op *src)
  {
    s_op tmp = {0};
    tmp.sym = src->sym;
    tmp.arity = src->arity;
    tmp.special = src->special;
    tmp.precedence = src->precedence;
    tmp.associativity = src->associativity;
    tmp.callable = callable_new_ref(src->callable);
    tmp.ref_count = 1;
    *op = tmp;
    return op;
  }
  
  s_op * op_new (void)
  {
    s_op *op;
    op = alloc(sizeof(s_op));
    if (! op)
      return NULL;
    if (! op_init(op)) {
      free(op);
      return NULL;
    }
    return op;
  }
  
  s_op * op_new_copy (const s_op *src)
  {
    s_op *op;
    op = alloc(sizeof(s_op));
    if (! op)
      return NULL;
    if (! op_init_copy(op, src)) {
      free(op);
      return NULL;
    }
    return op;
  }
  
  s_op * op_new_ref (s_op *op)
  {
    assert(op);
    if (op->ref_count <= 0) {
      err_puts("op_new_ref: invalid reference count");
      assert(! "op_new_ref: invalid reference count");
      return NULL;
    }
    op->ref_count++;
    return op;
  }
  
  s_op * op_set_callable (s_op *op, s_callable *callable)
  {
    op->callable = callable_new_ref(callable);
    callable_set_special(op->callable, op->special);
    return op;
  }
  
  s_op * op_set_special (s_op *op, bool special)
  {
    op->special = special;
    callable_set_special(op->callable, special);
    return op;
  }
  

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