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Protect all accesses to the FuncDef.u and Expr.u unions using nearby

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assert()s or branches.

FossilOrigin-Name: 9af863f065e0bef491c2ab7525194505f9516f4e6dfc789d2e3a9d2c2438533a
This commit is contained in:
drh
2021-10-07 13:40:29 +00:00
parent 78b2fa8610
commit f975107437
19 changed files with 131 additions and 57 deletions
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src/insert.c
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@@ -2901,7 +2901,9 @@ static int xferOptimization(
Expr *pDestExpr = sqlite3ColumnExpr(pDest, pDestCol);
Expr *pSrcExpr = sqlite3ColumnExpr(pSrc, pSrcCol);
assert( pDestExpr==0 || pDestExpr->op==TK_SPAN );
assert( pDestExpr==0 || !ExprHasProperty(pDestExpr, EP_IntValue) );
assert( pSrcExpr==0 || pSrcExpr->op==TK_SPAN );
assert( pSrcExpr==0 || !ExprHasProperty(pSrcExpr, EP_IntValue) );
if( (pDestExpr==0)!=(pSrcExpr==0)
|| (pDestExpr!=0 && strcmp(pDestExpr->u.zToken,
pSrcExpr->u.zToken)!=0)