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Add extra assert() statements trying to catch a Mem object in an inconsistent

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state.

FossilOrigin-Name: 4aeb3ae435c78070232fef21a147fde4e1c5cd31
This commit is contained in:
drh
2014-03-01 14:45:18 +00:00
parent efbf3b1a10
commit defbd9dade
6 changed files with 38 additions and 16 deletions
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4
src/vdbe.c
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@@ -600,18 +600,21 @@ int sqlite3VdbeExec(
assert( pOp->p1>0 );
assert( pOp->p1<=(p->nMem-p->nCursor) );
assert( memIsValid(&aMem[pOp->p1]) );
assert( memSanity1(&aMem[pOp->p1]) );
REGISTER_TRACE(pOp->p1, &aMem[pOp->p1]);
}
if( (pOp->opflags & OPFLG_IN2)!=0 ){
assert( pOp->p2>0 );
assert( pOp->p2<=(p->nMem-p->nCursor) );
assert( memIsValid(&aMem[pOp->p2]) );
assert( memSanity1(&aMem[pOp->p2]) );
REGISTER_TRACE(pOp->p2, &aMem[pOp->p2]);
}
if( (pOp->opflags & OPFLG_IN3)!=0 ){
assert( pOp->p3>0 );
assert( pOp->p3<=(p->nMem-p->nCursor) );
assert( memIsValid(&aMem[pOp->p3]) );
assert( memSanity1(&aMem[pOp->p3]) );
REGISTER_TRACE(pOp->p3, &aMem[pOp->p3]);
}
if( (pOp->opflags & OPFLG_OUT2)!=0 ){
@@ -2460,6 +2463,7 @@ case OP_Column: {
*/
assert( p2<pC->nHdrParsed );
assert( rc==SQLITE_OK );
assert( memSanity1(pDest) );
if( pC->szRow>=aOffset[p2+1] ){
/* This is the common case where the desired content fits on the original
** page - where the content is not on an overflow page */