X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/62a3e4f0c54505834cb89c40726771ad32aabb27..e91ff6ce3d2653b41265591dafd4bdb32ae114c2:/src/output.c diff --git a/src/output.c b/src/output.c index edb75700..f8cb5350 100644 --- a/src/output.c +++ b/src/output.c @@ -122,6 +122,11 @@ static short *state_count = NULL; static short *order = NULL; static short *base = NULL; static short *pos = NULL; + +/* TABLE_SIZE is the allocated size of both TABLE and CHECK. + We start with the original hard-coded value: SHRT_MAX + (yes, not USHRT_MAX). */ +static size_t table_size = SHRT_MAX; static short *table = NULL; static short *check = NULL; static int lowzero; @@ -132,93 +137,81 @@ static struct obstack format_obstack; int error_verbose = 0; -/* Returns the number of lines of S. */ -size_t -get_lines_number (const char *s) -{ - size_t lines = 0; - - size_t i; - for (i = 0; s[i]; ++i) - if (s[i] == '\n') - ++lines; - - return lines; -} - /*----------------------------------------------------------------. -| Format the FIRST and then TABLE_DATA[BEGIN..END[ into OOUT, and | -| return the number of bits needed for its longuest value. | +| If TABLE (and CHECK) appear to be small to be addressed at | +| DESIRED, grow them. Note that TABLE[DESIRED] is to be used, so | +| the desired size is at least DESIRED + 1. | `----------------------------------------------------------------*/ -static inline long int -output_short_table (struct obstack *oout, - short *table_data, - short first, - int begin, - int end) +static void +table_grow (size_t desired) { - long int max = first; - int i; - int j = 1; + size_t old_size = table_size; + + while (table_size <= desired) + table_size *= 2; + + if (trace_flag) + fprintf (stderr, "growing table and check from: %d to %d\n", + old_size, table_size); - obstack_fgrow1 (oout, "%6d", first); - for (i = begin; i < end; ++i) + table = XREALLOC (table, short, table_size); + check = XREALLOC (check, short, table_size); + + for (/* Nothing. */; old_size < table_size; ++old_size) { - obstack_1grow (oout, ','); - if (j >= 10) - { - obstack_sgrow (oout, "\n "); - j = 1; - } - else - ++j; - obstack_fgrow1 (oout, "%6d", table_data[i]); - if (table_data[i] > max) - max = table_data[i]; + table[old_size] = 0; + check[old_size] = -1; } - obstack_1grow (oout, 0); - - return max; } -/*--------------------. -| Similar, for ints. | -`--------------------*/ +/*------------------------------------------------------------------. +| Create a function NAME which Format the FIRST and then | +| TABLE_DATA[BEGIN..END[ (of TYPE) into OOUT, and return the number | +| of bits needed for its longuest value. | +`------------------------------------------------------------------*/ -static inline long int -output_int_table (struct obstack *oout, - int *table_data, - int first, - int begin, - int end) -{ - long int max = first; - int i; - int j = 1; - obstack_fgrow1 (oout, "%6d", first); - for (i = begin; i < end; ++i) - { - obstack_1grow (oout, ','); - if (j >= 10) - { - obstack_sgrow (oout, "\n "); - j = 1; - } - else - ++j; - obstack_fgrow1 (oout, "%6d", table_data[i]); - if (table_data[i] > max) - max = table_data[i]; - } - obstack_1grow (oout, 0); - - return max; +#define GENERATE_OUTPUT_TABLE(Name, Type) \ + \ +static inline long int \ +Name (struct obstack *oout, \ + Type *table_data, \ + Type first, \ + int begin, \ + int end) \ +{ \ + long int max = first; \ + int i; \ + int j = 1; \ + \ + obstack_fgrow1 (oout, "%6d", first); \ + for (i = begin; i < end; ++i) \ + { \ + obstack_1grow (oout, ','); \ + if (j >= 10) \ + { \ + obstack_sgrow (oout, "\n "); \ + j = 1; \ + } \ + else \ + ++j; \ + obstack_fgrow1 (oout, "%6d", table_data[i]); \ + if (table_data[i] > max) \ + max = table_data[i]; \ + } \ + obstack_1grow (oout, 0); \ + \ + return max; \ } +GENERATE_OUTPUT_TABLE(output_int_table, int) +GENERATE_OUTPUT_TABLE(output_short_table, short) +GENERATE_OUTPUT_TABLE(output_token_number_table, token_number_t) +GENERATE_OUTPUT_TABLE(output_item_number_table, item_number_t) + /*-----------------------------------------------------------------. | Prepare the muscles related to the tokens: translate, tname, and | @@ -228,8 +221,9 @@ output_int_table (struct obstack *oout, static void prepare_tokens (void) { - long int max = output_short_table (&format_obstack, token_translations, - 0, 1, max_user_token_number + 1); + long int max = output_token_number_table (&format_obstack, + token_translations, + 0, 1, max_user_token_number + 1); muscle_insert ("translate", obstack_finish (&format_obstack)); MUSCLE_INSERT_LONG_INT ("token_number_max", max); XFREE (token_translations); @@ -295,7 +289,7 @@ prepare_rules (void) int i = 0; item_number_t *rhs = XMALLOC (item_number_t, nritems); short *prhs = XMALLOC (short, nrules + 1); - short *r1 = XMALLOC (short, nrules + 1); + token_number_t *r1 = XMALLOC (token_number_t, nrules + 1); short *r2 = XMALLOC (short, nrules + 1); short *rline = XMALLOC (short, nrules + 1); @@ -327,7 +321,7 @@ prepare_rules (void) output_short_table (&format_obstack, rline, 0, 1, nrules + 1); muscle_insert ("rline", obstack_finish (&format_obstack)); - output_short_table (&format_obstack, r1, 0, 1, nrules + 1); + output_token_number_table (&format_obstack, r1, 0, 1, nrules + 1); muscle_insert ("r1", obstack_finish (&format_obstack)); output_short_table (&format_obstack, r2, 0, 1, nrules + 1); @@ -346,11 +340,12 @@ static void prepare_states (void) { size_t i; - short *values = (short *) alloca (sizeof (short) * nstates); + token_number_t *values = + (token_number_t *) alloca (sizeof (token_number_t) * nstates); for (i = 0; i < nstates; ++i) values[i] = states[i]->accessing_symbol; - output_short_table (&format_obstack, values, - 0, 1, nstates); + output_token_number_table (&format_obstack, values, + 0, 1, nstates); muscle_insert ("stos", obstack_finish (&format_obstack)); } @@ -403,7 +398,7 @@ action_row (state_t *state) to reduce. */ for (i = 0; i < shiftp->nshifts; i++) { - int symbol; + token_number_t symbol; int shift_state = shiftp->shifts[i]; if (!shift_state) continue; @@ -417,7 +412,7 @@ action_row (state_t *state) /* Do not use any default reduction if there is a shift for error */ - if (symbol == error_token_number) + if (symbol == errtoken->number) nodefault = 1; } @@ -614,7 +609,7 @@ token_definitions_output (FILE *out) if (number == SALIAS) continue; /* Skip error token. */ - if (symbol->number == error_token_number) + if (symbol == errtoken) continue; if (symbol->tag[0] == '\'') continue; /* skip literal character */ @@ -807,8 +802,6 @@ matching_state (int vector) return -1; } -/* FIXME: For the time being, best approximation... */ -#define MAXTABLE SHRT_MAX static int pack_vector (int vector) @@ -822,7 +815,7 @@ pack_vector (int vector) assert (t); - for (j = lowzero - from[0]; j < MAXTABLE; j++) + for (j = lowzero - from[0]; j < (int) table_size; j++) { int k; int ok = 1; @@ -830,8 +823,8 @@ pack_vector (int vector) for (k = 0; ok && k < t; k++) { loc = j + from[k]; - if (loc > MAXTABLE) - fatal (_("maximum table size (%d) exceeded"), MAXTABLE); + if (loc > (int) table_size) + table_grow (loc); if (table[loc] != 0) ok = 0; @@ -874,8 +867,8 @@ pack_table (void) base = XCALLOC (short, nvectors); pos = XCALLOC (short, nentries); - table = XCALLOC (short, MAXTABLE); - check = XCALLOC (short, MAXTABLE); + table = XCALLOC (short, table_size); + check = XCALLOC (short, table_size); lowzero = 0; high = 0; @@ -883,7 +876,7 @@ pack_table (void) for (i = 0; i < nvectors; i++) base[i] = SHRT_MIN; - for (i = 0; i < MAXTABLE; i++) + for (i = 0; i < (int) table_size; i++) check[i] = -1; for (i = 0; i < nentries; i++) @@ -1078,7 +1071,8 @@ prepare (void) MUSCLE_INSERT_INT ("nsym", nsyms); MUSCLE_INSERT_INT ("debug", debug_flag); MUSCLE_INSERT_INT ("final", final_state); - MUSCLE_INSERT_INT ("maxtok", max_user_token_number); + MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number); + MUSCLE_INSERT_INT ("user_token_number_max", max_user_token_number); MUSCLE_INSERT_INT ("error_verbose", error_verbose); MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");