kc3-lang/libxkbcommon/src/messages-codes.h.jinja

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• Hash : df2322d7
  Author :
  Date : 2025-02-05T14:41:21
  

  Replace include guards by `#pragma once`
  
  We currently have a mix of include headers, pragma once and some
  missing.
  
  pragma once is not standard but is widely supported, and we already use
  it with no issues, so I'd say it's not a problem.
  
  Let's convert all headers to pragma once to avoid the annoying include
  guards.
  
  The public headers are *not* converted.
  
  Signed-off-by: Ran Benita <ran@unusedvar.com>
  

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• src/messages-codes.h.jinja

• // NOTE: This file has been generated automatically by “{{script}}”.
  //       Do not edit manually!
  #pragma once
  
  #include <stdint.h>
  
  /*
   * Macro sorcery: PREPEND_MESSAGE_ID enables the log functions to format messages
   * with the message ID only if the ID is not 0 (XKB_LOG_MESSAGE_NO_ID).
   * This avoid checking the ID value at run time.
   *
   * The trick resides in CHECK_ID:
   * • CHECK_ID(0) expands to:
   *   ‣ SECOND(MATCH0, WITH_ID, unused)
   *   ‣ SECOND(unused,WITHOUT_ID, WITH_ID, unused)
   *   ‣ WITHOUT_ID
   * • CHECK_ID(123) expands to:
   *   ‣ SECOND(MATCH123, WITH_ID, unused)
   *   ‣ WITH_ID
  */
  #define EXPAND(...)              __VA_ARGS__ /* needed for MSVC compatibility */
  
  #define JOIN_EXPAND(a, b)        a##b
  #define JOIN(a, b)               JOIN_EXPAND(a, b)
  
  #define SECOND_EXPAND(a, b, ...) b
  #define SECOND(...)              EXPAND(SECOND_EXPAND(__VA_ARGS__))
  
  #define MATCH0                   unused,WITHOUT_ID
  #define CHECK_ID(value)          SECOND(JOIN(MATCH, value), WITH_ID, unused)
  
  #define FORMAT_MESSAGE_WITHOUT_ID(id, fmt) fmt
  #define FORMAT_MESSAGE_WITH_ID(id, fmt)    "[XKB-%03d] " fmt, id
  #define PREPEND_MESSAGE_ID(id, fmt) JOIN(FORMAT_MESSAGE_, CHECK_ID(id))(id, fmt)
  
  /**
   * Special case when no message identifier is defined.
   */
  #define XKB_LOG_MESSAGE_NO_ID 0
  
  /**
   * @name Codes of the log messages
   */
  enum xkb_message_code {
      _XKB_LOG_MESSAGE_MIN_CODE = {{ entries[0].code }},
      {% for entry in entries %}
      /** {{ entry.description }} */
      {{ entry.message_code_constant }} = {{ entry.code }},
      {% endfor %}
      _XKB_LOG_MESSAGE_MAX_CODE = {{ entries[-1].code }}
  };
  
  typedef uint32_t xkb_message_code_t;
  

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