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annotate tests/agcl/examples/good/mas.h @ 21:1c9dac05d040

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Add lint-style FALLTHROUGH annotations to fallthrough cases. (in the parse engine and thus the output code) Document this, because the old output causes warnings with gcc10.
author David A. Holland
date Mon, 13 Jun 2022 00:04:38 -0400
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children
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1 #ifndef MAS_H
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2 #define MAS_H
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3
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4 typedef union {
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5 long alignment;
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6 char ag_vt_4[sizeof(token)];
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7 char ag_vt_5[sizeof(unsigned)];
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8 } mas_vs_type;
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9
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10 typedef enum {
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11 mas_space_token = 1, mas_grammar_token, mas_parse_unit_token,
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12 mas_eof_token = 6, mas_parameter_expansion_token = 8,
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13 mas_simple_parse_unit_token, mas_concatenation_token, mas_macro_token,
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14 mas_parameter_name_token = 14, mas_variable_token, mas_simple_macro_token,
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15 mas_macro_arg_list_token = 18, mas_defined_token = 20,
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16 mas_macro_name_token, mas_NAME_token, mas_left_side_token,
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17 mas_right_side_token, mas_CONCAT_token, mas_not_parameter_token,
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18 mas_arg_elements_token, mas_initial_arg_element_token = 29,
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19 mas_nested_elements_token = 31, mas_arg_element_token
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20 } mas_token_type;
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21
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22 typedef struct mas_pcb_struct{
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23 mas_token_type token_number, reduction_token, error_frame_token;
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24 int input_code;
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25 token input_value;
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26 int line, column;
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27 int ssx, sn, error_frame_ssx;
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28 int drt, dssx, dsn;
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29 int ss[128];
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30 mas_vs_type vs[128];
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31 int ag_ap;
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32 const char *error_message;
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33 char read_flag;
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34 char exit_flag;
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35 token * pointer;
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36 token * la_ptr;
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37 char ag_msg[82];
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38 const int *ag_dtl;
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39 int ag_dsn;
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40 } mas_pcb_type;
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41
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42 #ifndef PRULE_CONTEXT
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43 #define PRULE_CONTEXT(pcb) (&((pcb).cs[(pcb).ssx]))
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44 #define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
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45 #define PCONTEXT(pcb) ((pcb).cs[(pcb).ssx])
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46 #endif
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47
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48 #ifndef AG_RUNNING_CODE
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49 /* PCB.exit_flag values */
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50 #define AG_RUNNING_CODE 0
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51 #define AG_SUCCESS_CODE 1
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52 #define AG_SYNTAX_ERROR_CODE 2
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53 #define AG_REDUCTION_ERROR_CODE 3
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54 #define AG_STACK_ERROR_CODE 4
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55 #define AG_SEMANTIC_ERROR_CODE 5
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56 #endif
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57 void init_mas(void);
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58 void mas(void);
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59 #endif
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