diff options
Diffstat (limited to 'src/prepare.c')
| -rw-r--r-- | src/prepare.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/prepare.c b/src/prepare.c index d78d83c..c7ba53a 100644 --- a/src/prepare.c +++ b/src/prepare.c @@ -525,6 +525,17 @@ int sqlite3SchemaToIndex(sqlite3 *db, Schema *pSchema){ } /* +** Free all memory allocations in the pParse object +*/ +void sqlite3ParserReset(Parse *pParse){ + if( pParse ){ + sqlite3 *db = pParse->db; + sqlite3DbFree(db, pParse->aLabel); + sqlite3ExprListDelete(db, pParse->pConstExpr); + } +} + +/* ** Compile the UTF-8 encoded SQL statement zSql into a statement handle. */ static int sqlite3Prepare( @@ -592,7 +603,7 @@ static int sqlite3Prepare( sqlite3VtabUnlockList(db); pParse->db = db; - pParse->nQueryLoop = (double)1; + pParse->nQueryLoop = 0; /* Logarithmic, so 0 really means 1 */ if( nBytes>=0 && (nBytes==0 || zSql[nBytes-1]!=0) ){ char *zSqlCopy; int mxLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH]; @@ -614,7 +625,7 @@ static int sqlite3Prepare( }else{ sqlite3RunParser(pParse, zSql, &zErrMsg); } - assert( 1==(int)pParse->nQueryLoop ); + assert( 0==pParse->nQueryLoop ); if( db->mallocFailed ){ pParse->rc = SQLITE_NOMEM; @@ -681,6 +692,7 @@ static int sqlite3Prepare( end_prepare: + sqlite3ParserReset(pParse); sqlite3StackFree(db, pParse); rc = sqlite3ApiExit(db, rc); assert( (rc&db->errMask)==rc ); @@ -810,6 +822,12 @@ static int sqlite3Prepare16( if( !sqlite3SafetyCheckOk(db) ){ return SQLITE_MISUSE_BKPT; } + if( nBytes>=0 ){ + int sz; + const char *z = (const char*)zSql; + for(sz=0; sz<nBytes && (z[sz]!=0 || z[sz+1]!=0); sz += 2){} + nBytes = sz; + } sqlite3_mutex_enter(db->mutex); zSql8 = sqlite3Utf16to8(db, zSql, nBytes, SQLITE_UTF16NATIVE); if( zSql8 ){ |