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Overview
Comment: | Fix a bug in lemon that leads to an assertion fault given an invalid grammar. The bug and this fix do not effect on SQLite. Ticket #2107. (CVS 3528) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
f2ad230f6dce98d664370d77845b5f58 |
User & Date: | drh 2006-12-14 01:06:22.000 |
Context
2006-12-16
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16:25 | Query optimizer enhancement: In "FROM a,b,c left join d" allow the C table to be reordered with A and B. This used to be the case but the capability was removed by (3203) and (3052) in response to ticket #1652. This change restores the capability. (CVS 3529) (check-in: 7393c81b8c user: drh tags: trunk) | |
2006-12-14
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01:06 | Fix a bug in lemon that leads to an assertion fault given an invalid grammar. The bug and this fix do not effect on SQLite. Ticket #2107. (CVS 3528) (check-in: f2ad230f6d user: drh tags: trunk) | |
2006-11-30
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13:06 | Change the table_info pragma so that it returns NULL for the default value if there is no default value. Ticket #2078. (CVS 3527) (check-in: 5f21c3a5f0 user: drh tags: trunk) | |
Changes
Changes to tool/lemon.c.
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357 358 359 360 361 362 363 | struct action *ap1; struct action *ap2; { int rc; rc = ap1->sp->index - ap2->sp->index; if( rc==0 ) rc = (int)ap1->type - (int)ap2->type; if( rc==0 ){ | < < | 357 358 359 360 361 362 363 364 365 366 367 368 369 370 | struct action *ap1; struct action *ap2; { int rc; rc = ap1->sp->index - ap2->sp->index; if( rc==0 ) rc = (int)ap1->type - (int)ap2->type; if( rc==0 ){ rc = ap1->x.rp->index - ap2->x.rp->index; } return rc; } /* Sort parser actions */ struct action *Action_sort(ap) |
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1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 | struct action *apx; struct action *apy; struct symbol *errsym; /* The error symbol (if defined. NULL otherwise) */ { struct symbol *spx, *spy; int errcnt = 0; assert( apx->sp==apy->sp ); /* Otherwise there would be no conflict */ if( apx->type==SHIFT && apy->type==REDUCE ){ spx = apx->sp; spy = apy->x.rp->precsym; if( spy==0 || spx->prec<0 || spy->prec<0 ){ /* Not enough precedence information. */ apy->type = CONFLICT; errcnt++; | > > > > | 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 | struct action *apx; struct action *apy; struct symbol *errsym; /* The error symbol (if defined. NULL otherwise) */ { struct symbol *spx, *spy; int errcnt = 0; assert( apx->sp==apy->sp ); /* Otherwise there would be no conflict */ if( apx->type==SHIFT && apy->type==SHIFT ){ apy->type = CONFLICT; errcnt++; } if( apx->type==SHIFT && apy->type==REDUCE ){ spx = apx->sp; spy = apy->x.rp->precsym; if( spy==0 || spx->prec<0 || spy->prec<0 ){ /* Not enough precedence information. */ apy->type = CONFLICT; errcnt++; |
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