X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4cdb01db9b73ce7678584e70f41d6adb3c53fcd7..5b7f88c7f24c3ca04bbb00860f5c429096ee8ce7:/src/reader.h diff --git a/src/reader.h b/src/reader.h index 29d95b1d..c241344f 100644 --- a/src/reader.h +++ b/src/reader.h @@ -21,54 +21,16 @@ #ifndef READER_H_ # define READER_H_ -typedef struct symbol_list -{ - struct symbol_list *next; - symbol_t *sym; - int line; - - /* The action is attached to the LHS of a rule. */ - const char *action; - int action_line; - - symbol_t *ruleprec; -} symbol_list; - +# include "symlist.h" # include "parse-gram.h" -typedef int location_t; - -/* Initialize LOC. */ -# define LOCATION_RESET(Loc) \ - (Loc).first_column = (Loc).first_line = 1; \ - (Loc).last_column = (Loc).last_line = 1; - -/* Advance of NUM columns. */ -# define LOCATION_COLUMNS(Loc, Num) \ - (Loc).last_column += Num; - -/* Advance of NUM lines. */ -# define LOCATION_LINES(Loc, Num) \ - (Loc).last_column = 1; \ - (Loc).last_line += Num; - -/* Restart: move the first cursor to the last position. */ -# define LOCATION_STEP(Loc) \ - (Loc).first_column = (Loc).last_column; \ - (Loc).first_line = (Loc).last_line; - -/* Output LOC on the stream OUT. */ -# define LOCATION_PRINT(Out, Loc) \ - fprintf (stderr, "%s:", infile); \ - if ((Loc).first_line != (Loc).last_line) \ - fprintf (Out, "%d.%d-%d.%d", \ - (Loc).first_line, (Loc).first_column, \ - (Loc).last_line, (Loc).last_column - 1); \ - else if ((Loc).first_column < (Loc).last_column - 1) \ - fprintf (Out, "%d.%d-%d", (Loc).first_line, \ - (Loc).first_column, (Loc).last_column - 1); \ - else \ - fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column) +typedef struct merger_list +{ + struct merger_list* next; + const char* name; + const char* type; +} +merger_list; typedef struct gram_control_s { @@ -78,37 +40,52 @@ typedef struct gram_control_s /* From the scanner. */ extern FILE *gram_in; extern int gram__flex_debug; -void scanner_last_string_free PARAMS ((void)); -void scanner_free PARAMS ((void)); +void scanner_initialize (void); +void scanner_free (void); # define YY_DECL \ - int gram_lex (yystype *yylval, yyltype *yylloc, \ + int gram_lex (yystype *yylval, location_t *yylloc, \ gram_control_t *yycontrol) YY_DECL; /* From the parser. */ extern int gram_debug; -void gram_error (gram_control_t *control, - yyltype *loc, const char *msg); +void gram_error (location_t *loc, const char *msg); int gram_parse (void *control); -char *get_type_name PARAMS ((int n, symbol_list *rule)); -extern int typed; +/* The sort of braced code we are in. */ +typedef enum braced_code_e + { + action_braced_code, + destructor_braced_code, + printer_braced_code + } braced_code_t; +/* FIXME: This is really a dirty hack which demonstrates that we + should probably not try to parse the actions now. */ +extern braced_code_t current_braced_code; + /* From reader.c. */ -void grammar_start_symbol_set PARAMS ((symbol_t *s)); -void prologue_augment PARAMS ((const char *prologue, location_t location)); -void epilogue_set PARAMS ((const char *epilogue, location_t location)); -void grammar_symbol_append PARAMS ((symbol_t *s)); -void grammar_rule_begin PARAMS ((symbol_t *lhs)); -void grammar_rule_end PARAMS ((void)); -void grammar_midrule_action PARAMS ((void)); -void grammar_current_rule_prec_set PARAMS ((symbol_t *precsym)); -void grammar_current_rule_symbol_append PARAMS ((symbol_t *symbol)); -void grammar_current_rule_action_append PARAMS ((const char *action, - int line)); -extern symbol_list *current_rule; -void reader PARAMS ((void)); +void grammar_start_symbol_set (symbol_t *s, location_t l); +void prologue_augment (const char *prologue, location_t location); +void epilogue_set (const char *epilogue, location_t location); +void grammar_symbol_append (symbol_t *s, location_t l); +void grammar_rule_begin (symbol_t *lhs, location_t l); +void grammar_rule_end (location_t l); +void grammar_midrule_action (void); +void grammar_current_rule_prec_set (symbol_t *precsym, location_t l); +void grammar_current_rule_dprec_set (int dprec, location_t l); +void grammar_current_rule_merge_set (const char* name, location_t l); + +void grammar_current_rule_symbol_append (symbol_t *symbol, location_t l); +void grammar_current_rule_action_append (const char *action, location_t l); +extern symbol_list_t *current_rule; +void reader (void); +void free_merger_functions (void); + +extern merger_list *merge_functions; + +extern int typed; #endif /* !READER_H_ */