kc3-lang/kc3/libkc3/block.h

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• Hash : 8df9b1b0
  Author : Thomas de Grivel
  Date : 2025-05-01T16:12:30
  

  block
  

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• libkc3/block.h

• /* 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.
   */
  /**
   * @file block.h
   * @brief A return or return_from block.
   *
   * A block has a symbolic name which can be NULL, a tag value to be
   * returned, and a next pointer to restore the environment.
   */
  #ifndef LIBKC3_BLOCK_H
  #define LIBKC3_BLOCK_H
  
  #include "types.h"
  
  /* Stack-allocation compatible functions, call block_clean after use. */
  s_block * block_init (s_block *block, const s_sym *name);
  void      block_clean (s_block *block);
  
  /* Observers. */
  s_block ** block_find (const s_sym *name);
  
  /* Operators. */
  void block_jump (s_block *block);
  void block_return (s_block *block, s_tag *value);
  void block_return_from (const s_sym *name, s_tag *value);
  
  #endif /* LIBKC3_BLOCK_H */
  

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