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Enhance the internal sqlite3VdbeAddOpList() interface to automatically update

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jump destinations.  Use this feature to simplify the AUTOINCREMENT code
generator.

FossilOrigin-Name: ae8b9d2edf1b5aef6108e729754911db7682b6a3
This commit is contained in:
drh
2016-02-03 01:55:44 +00:00
parent b06347a5dc
commit 1b32554b80
7 changed files with 80 additions and 52 deletions
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6
src/vdbeaux.c
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@@ -646,6 +646,9 @@ VdbeOp *sqlite3VdbeTakeOpArray(Vdbe *p, int *pnOp, int *pnMaxArg){
/*
** Add a whole list of operations to the operation stack. Return a
** pointer to the first operation inserted.
**
** Non-zero P2 arguments to jump instructions are automatically adjusted
** so that the jump target is relative to the first operation inserted.
*/
VdbeOp *sqlite3VdbeAddOpList(
Vdbe *p, /* Add opcodes to the prepared statement */
@@ -666,6 +669,9 @@ VdbeOp *sqlite3VdbeAddOpList(
pOut->p1 = aOp->p1;
pOut->p2 = aOp->p2;
assert( aOp->p2>=0 );
if( (sqlite3OpcodeProperty[aOp->opcode] & OPFLG_JUMP)!=0 && aOp->p2>0 ){
pOut->p2 += p->nOp;
}
pOut->p3 = aOp->p3;
pOut->p4type = P4_NOTUSED;
pOut->p4.p = 0;