Fix up a branch in sqlite3ValueFromExpr() so that we can achieve full

branch test coverage regardless of whether or not SQLITE_ENABLE_STAT2 is
used.

FossilOrigin-Name: af471ed79f539ff495f6d4cb3b69188c8af7ae3d

manifest

@@ -1,8 +1,8 @@
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-C Change\sthe\sname\sof\sthe\sshared-memory\sfile\son\swindows\sfrom\s*-wal-index\sto\n*-shm,\sfor\sconsistency\swith\sunix.
-D 2010-06-25T12:52:47
+C Fix\sup\sa\sbranch\sin\ssqlite3ValueFromExpr()\sso\sthat\swe\scan\sachieve\sfull\nbranch\stest\scoverage\sregardless\sof\swhether\sor\snot\sSQLITE_ENABLE_STAT2\sis\nused.
+D 2010-06-25T14:17:58
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in a5cad1f8f3e021356bfcc6c77dc16f6f1952bbc3
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -226,7 +226,7 @@ F src/vdbeInt.h 19ebc8c2a2e938340051ee65af3f377fb99102d1
 F src/vdbeapi.c dc3138f10afbc95ed3c21dd25abb154504b1db9d
 F src/vdbeaux.c 4e96a5169b988a8697d4a417f902277b4152e43e
 F src/vdbeblob.c 258a6010ba7a82b72b327fb24c55790655689256
-F src/vdbemem.c 2a82f455f6ca6f78b59fb312f96054c04ae0ead1
+F src/vdbemem.c 5e579abf6532001dfbee0e640dc34eae897a9807
 F src/vdbetrace.c 864cef96919323482ebd9986f2132435115e9cc2
 F src/vtab.c a0f8a40274e4261696ef57aa806de2776ab72cda
 F src/wal.c a6648b66a8990439d5d5c124191590b00929b9e4
@@ -828,14 +828,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
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manifest.uuid

@@ -1 +1 @@
-5995cb15080cfb707ddda501f975673f658106f7
+af471ed79f539ff495f6d4cb3b69188c8af7ae3d

src/vdbemem.c

@@ -1015,9 +1015,16 @@ int sqlite3ValueFromExpr(
     return SQLITE_OK;
   }
   op = pExpr->op;
-  if( op==TK_REGISTER ){
-    op = pExpr->op2;  /* This only happens with SQLITE_ENABLE_STAT2 */
-  }
+
+  /* op can only be TK_REGISTER is we have compiled with SQLITE_ENABLE_STAT2.
+  ** The ifdef here is to enable us to achieve 100% branch test coverage even
+  ** when SQLITE_ENABLE_STAT2 is omitted.
+  */
+#ifdef SQLITE_ENABLE_STAT2
+  if( op==TK_REGISTER ) op = pExpr->op2;
+#else
+  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
+#endif
 
   if( op==TK_STRING || op==TK_FLOAT || op==TK_INTEGER ){
     pVal = sqlite3ValueNew(db);