• Alexander Barkov's avatar
    sql_lex.yy / sql_yacc_ora.yy refactoring for MDEV-10411. · 365e0b31
    Alexander Barkov authored
    1. Adding const qualifiers into a few method parameters.
    
    2. Adding methods:
    - sp_label::block_label_declare()
    - LEX::sp_block_init()
    - LEX::sp_block_finalize()
      to share more code between the files sql_yacc.yy and sql_yacc_ora.yy,
      as well as between the rules sp_labeled_block, sp_unlabeled_block,
      sp_unlabeled_block_not_atomic.
    
    3. sql_yacc.yy, sql_yacc_ora.yy changes:
    - Removing sp_block_content
    - Reorganizing the grammar so the rules sp_labeled_block,
      sp_unlabeled_block, sp_unlabeled_block_not_atomic now
      contain both BEGIN_SYM and END keywords. Previously,
      BEGIN_SYM and END resided in different rules.
      This change makes the grammar easier to read,
      as well as simplifies adding Oracle-style DECLARE section (coming soon):
        DECLARE
          ..
        BEGIN
          ..
        END;
    
      Good side effects:
      - SP block related grammar does not use Lex->name any more.
      - The "splabel" member was removed from %union
    365e0b31
sp_pcontext.cc 11.3 KB