X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ccaf65bc6331dfb0684876a7475c6474b99125ea..c0cac722f7e5d7498528a67a37477cdf9ed1745c:/src/lalr.h?ds=sidebyside diff --git a/src/lalr.h b/src/lalr.h index 3bece77c..7edbbe8a 100644 --- a/src/lalr.h +++ b/src/lalr.h @@ -21,8 +21,8 @@ #ifndef LALR_H_ # define LALR_H_ -#include "bitset.h" -#include "bitsetv.h" +# include "bitset.h" +# include "bitsetv.h" /* Import the definition of CORE, TRANSITIONS and REDUCTIONS. */ # include "state.h" @@ -36,6 +36,11 @@ void lalr PARAMS ((void)); +/* Release the information related to lookaheads. Can be performed + once the action tables are computed. */ + +void lalr_free PARAMS ((void)); + /* lalr() builds these data structures. */ @@ -49,26 +54,12 @@ void lalr PARAMS ((void)); together and GOTO_MAP[I - NTOKENS] is the index in FROM_STATE and TO_STATE of the first of them. */ -extern short *goto_map; +typedef short goto_number_t; +# define GOTO_NUMBER_MAX ((goto_number_t) INT_MAX) + +extern goto_number_t *goto_map; extern state_number_t *from_state; extern state_number_t *to_state; -/* LARULE is a vector which records the rules that need lookahead in - various states. The elements of LARULE that apply to state S are - those from LOOKAHEADS[S] through LOOKAHEADS[S+1]-1. - - If LR is the length of LArule, then a number from 0 to LR-1 can - specify both a rule and a state where the rule might be applied. - */ - -extern rule_t **LArule; - -/* LA is a LR by NTOKENS matrix of bits. LA[l, i] is 1 if the rule - LAruleno[l] is applicable in the appropriate state when the next - token is symbol i. If LA[l, i] and LA[l, j] are both 1 for i != j, - it is a conflict. */ - -extern bitsetv LA; - #endif /* !LALR_H_ */