SQLite

Check-in [f56d305a7b]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Improved VDBE branch coverage in the run-time frame-spec error detection logic of window functions.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: f56d305a7bad6608d51d8c8cef417ddb66cff50f0a75d28554ea669e47f3d90d
User & Date: drh 2019-04-01 14:30:30.127
Context
2019-04-01
15:55
Mark rowid-comparison opcodes as never-null for VDBE coverage tracking purposes. (check-in: a69bb4f257 user: drh tags: trunk)
14:30
Improved VDBE branch coverage in the run-time frame-spec error detection logic of window functions. (check-in: f56d305a7b user: drh tags: trunk)
14:01
Improved comments on the VDBE branch coverage testing logic. Fix the VDBE branch coverage measurement on the OP_MustBeInt opcode. (check-in: 8681750e85 user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/window.c.
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
  int regZero = sqlite3GetTempReg(pParse);
  assert( eCond>=0 && eCond<ArraySize(azErr) );
  sqlite3VdbeAddOp2(v, OP_Integer, 0, regZero);
  if( eCond>=WINDOW_STARTING_NUM ){
    int regString = sqlite3GetTempReg(pParse);
    sqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
    sqlite3VdbeAddOp3(v, OP_Ge, regString, sqlite3VdbeCurrentAddr(v)+2, reg);
    sqlite3VdbeChangeP5(v, SQLITE_AFF_NUMERIC);
    VdbeCoverage(v);
    assert( eCond==3 || eCond==4 );
    VdbeCoverageIf(v, eCond==3);
    VdbeCoverageIf(v, eCond==4);
  }else{
    sqlite3VdbeAddOp2(v, OP_MustBeInt, reg, sqlite3VdbeCurrentAddr(v)+2);
    VdbeCoverage(v);
    assert( eCond==0 || eCond==1 || eCond==2 );
    VdbeCoverageIf(v, eCond==0);
    VdbeCoverageIf(v, eCond==1);
    VdbeCoverageIf(v, eCond==2);
  }
  sqlite3VdbeAddOp3(v, aOp[eCond], regZero, sqlite3VdbeCurrentAddr(v)+2, reg);
  VdbeCoverageIf(v, eCond==0);
  VdbeCoverageIf(v, eCond==1);
  VdbeCoverageIf(v, eCond==2);
  VdbeCoverageIf(v, eCond==3);
  VdbeCoverageIf(v, eCond==4);
  sqlite3MayAbort(pParse);
  sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort);
  sqlite3VdbeAppendP4(v, (void*)azErr[eCond], P4_STATIC);
  sqlite3ReleaseTempReg(pParse, regZero);
}

/*







|













|
|
|
|
|







1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
  int regZero = sqlite3GetTempReg(pParse);
  assert( eCond>=0 && eCond<ArraySize(azErr) );
  sqlite3VdbeAddOp2(v, OP_Integer, 0, regZero);
  if( eCond>=WINDOW_STARTING_NUM ){
    int regString = sqlite3GetTempReg(pParse);
    sqlite3VdbeAddOp4(v, OP_String8, 0, regString, 0, "", P4_STATIC);
    sqlite3VdbeAddOp3(v, OP_Ge, regString, sqlite3VdbeCurrentAddr(v)+2, reg);
    sqlite3VdbeChangeP5(v, SQLITE_AFF_NUMERIC|SQLITE_JUMPIFNULL);
    VdbeCoverage(v);
    assert( eCond==3 || eCond==4 );
    VdbeCoverageIf(v, eCond==3);
    VdbeCoverageIf(v, eCond==4);
  }else{
    sqlite3VdbeAddOp2(v, OP_MustBeInt, reg, sqlite3VdbeCurrentAddr(v)+2);
    VdbeCoverage(v);
    assert( eCond==0 || eCond==1 || eCond==2 );
    VdbeCoverageIf(v, eCond==0);
    VdbeCoverageIf(v, eCond==1);
    VdbeCoverageIf(v, eCond==2);
  }
  sqlite3VdbeAddOp3(v, aOp[eCond], regZero, sqlite3VdbeCurrentAddr(v)+2, reg);
  VdbeCoverageNeverNullIf(v, eCond==0); /* NULL case captured by */
  VdbeCoverageNeverNullIf(v, eCond==1); /*   the OP_MustBeInt */
  VdbeCoverageNeverNullIf(v, eCond==2);
  VdbeCoverageNeverNullIf(v, eCond==3); /* NULL case caught by */
  VdbeCoverageNeverNullIf(v, eCond==4); /*   the OP_Ge */
  sqlite3MayAbort(pParse);
  sqlite3VdbeAddOp2(v, OP_Halt, SQLITE_ERROR, OE_Abort);
  sqlite3VdbeAppendP4(v, (void*)azErr[eCond], P4_STATIC);
  sqlite3ReleaseTempReg(pParse, regZero);
}

/*