From: drh <drh@noemail.net>
Date: Tue, 6 Aug 2013 16:56:44 +0000 (+0000)
Subject: Remove unreachable branches in expr.c, replacing them with assert() and
X-Git-Tag: version-3.8.0~44
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3535ec3e10555c1b75b4854dd6c7a52b99cde816;p=thirdparty%2Fsqlite.git

Remove unreachable branches in expr.c, replacing them with assert() and
testcase() statements.

FossilOrigin-Name: 9103c27ceb3f4023ea3a41b679a10717d3f80210
---

diff --git a/manifest b/manifest
index 23e2bb7256..4bb5e63c86 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C For\sthe\s".import"\scommand\sof\sthe\scommand-line\sshell,\sstart\sa\stransaction\nif\sthere\sis\snot\sone\sactive\salready.
-D 2013-08-06T14:36:36.363
+C Remove\sunreachable\sbranches\sin\sexpr.c,\sreplacing\sthem\swith\sassert()\sand\ntestcase()\sstatements.
+D 2013-08-06T16:56:44.584
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 5e41da95d92656a5004b03d3576e8b226858a28e
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -172,7 +172,7 @@ F src/complete.c dc1d136c0feee03c2f7550bafc0d29075e36deac
 F src/ctime.c 4262c227bc91cecc61ae37ed3a40f08069cfa267
 F src/date.c 067a81c9942c497aafd2c260e13add8a7d0c7dd4
 F src/delete.c 2317c814866d9aa71fea16b3faf4fdd4d6a49b94
-F src/expr.c 7e55edefb8bd0b35b382ce9226c58472cd63a443
+F src/expr.c cd4fb5acb6060a2fec30dc07fef7f8113ff3f8ad
 F src/fault.c 160a0c015b6c2629d3899ed2daf63d75754a32bb
 F src/fkey.c 914a6bbd987d857c41ac9d244efa6641f36faadb
 F src/func.c 5c50c1ea31fd864b0fe921fe1a8d4c55acd609ef
@@ -1105,7 +1105,7 @@ F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/wherecosttest.c f407dc4c79786982a475261866a161cd007947ae
 F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
-P 2b1743d60171635c1e5a6ede6b4928f4671f948d
-R 52d68f7d6fd0cf4ecec25cf61e17c3e0
+P 5dcc2d91bd343cd0fac79d3c8f079a5ce534cdf7
+R 4c2c4347dbc9045867f7f93fb89a2b59
 U drh
-Z 274a34c6d0a826d2bb04d7b9aabecdb7
+Z 4578d43c48945a1e8da3abe73645bfd7
diff --git a/manifest.uuid b/manifest.uuid
index a49cab56b3..6f265e5fa6 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-5dcc2d91bd343cd0fac79d3c8f079a5ce534cdf7
\ No newline at end of file
+9103c27ceb3f4023ea3a41b679a10717d3f80210
\ No newline at end of file
diff --git a/src/expr.c b/src/expr.c
index 3857d5d841..5fca1f12c0 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -1739,10 +1739,11 @@ int sqlite3CodeSubselect(
           return 0;
         }
         pEList = pExpr->x.pSelect->pEList;
-        if( pKeyInfo && ALWAYS(pEList!=0 && pEList->nExpr>0) ){ 
-          pKeyInfo->aColl[0] = sqlite3BinaryCompareCollSeq(pParse, pExpr->pLeft,
-              pEList->a[0].pExpr);
-        }
+        assert( pKeyInfo!=0 ); /* OOM will exit after sqlite3Select() */
+        assert( pEList!=0 );
+        assert( pEList->nExpr>0 );
+        pKeyInfo->aColl[0] = sqlite3BinaryCompareCollSeq(pParse, pExpr->pLeft,
+                                                         pEList->a[0].pExpr);
       }else if( ALWAYS(pExpr->x.pList!=0) ){
         /* Case 2:     expr IN (exprlist)
         **