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Add comments to unused P3 fields of selected instructions when NDEBUG is

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not defined.  This makes VDBE program dumps more readable during debugging. (CVS 1973)

FossilOrigin-Name: 4871c77f8fce36ff230e1f026f4e4e49492515e9
This commit is contained in:
drh
2004-09-19 02:15:24 +00:00
parent 344737f60a
commit ad6d94607f
13 changed files with 91 additions and 58 deletions
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25
src/delete.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle DELETE FROM statements.
**
** $Id: delete.c,v 1.80 2004/09/06 17:24:13 drh Exp $
** $Id: delete.c,v 1.81 2004/09/19 02:15:25 drh Exp $
*/
#include "sqliteInt.h"
@@ -49,6 +49,21 @@ int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
return 0;
}
/*
** Generate code that will open a table for reading.
*/
void sqlite3OpenTableForReading(
Vdbe *v, /* Generate code into this VDBE */
int iCur, /* The cursor number of the table */
Table *pTab /* The table to be opened */
){
sqlite3VdbeAddOp(v, OP_Integer, pTab->iDb, 0);
sqlite3VdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
VdbeComment((v, "# %s", pTab->zName));
sqlite3VdbeAddOp(v, OP_SetNumColumns, iCur, pTab->nCol);
}
/*
** Process a DELETE FROM statement.
*/
@@ -166,9 +181,7 @@ void sqlite3DeleteFrom(
int endOfLoop = sqlite3VdbeMakeLabel(v);
int addr;
if( !isView ){
sqlite3VdbeAddOp(v, OP_Integer, pTab->iDb, 0);
sqlite3VdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
sqlite3VdbeAddOp(v, OP_SetNumColumns, iCur, pTab->nCol);
sqlite3OpenTableForReading(v, iCur, pTab);
}
sqlite3VdbeAddOp(v, OP_Rewind, iCur, sqlite3VdbeCurrentAddr(v)+2);
addr = sqlite3VdbeAddOp(v, OP_AddImm, 1, 0);
@@ -232,9 +245,7 @@ void sqlite3DeleteFrom(
addr = sqlite3VdbeAddOp(v, OP_ListRead, 0, end);
sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
if( !isView ){
sqlite3VdbeAddOp(v, OP_Integer, pTab->iDb, 0);
sqlite3VdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
sqlite3VdbeAddOp(v, OP_SetNumColumns, iCur, pTab->nCol);
sqlite3OpenTableForReading(v, iCur, pTab);
}
sqlite3VdbeAddOp(v, OP_MoveGe, iCur, 0);
sqlite3VdbeAddOp(v, OP_Recno, iCur, 0);