hcq/MaxScale
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MXS-2917 Add missing destructors to sqlite rules

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Lemon (the sqlite parser generator) destructors are needed for
all rules that return dynamically allocated structures. Otherwise
there may be leaks if a statement is not completely parsed.
This commit is contained in:
Johan Wikman 2020-03-09 15:24:20 +02:00
parent 4a2d3dc55b
commit 8dd9a4ca27
1 changed files with 2 additions and 0 deletions
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2
query_classifier/qc_sqlite/sqlite-src-3110100/src/parse.y
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@ -1878,6 +1878,7 @@ expr(A) ::= LP(B) expr(X) RP(E). {A.pExpr = X.pExpr; spanSet(&A,&B,&E);}
%endif
%ifdef MAXSCALE
%type exprs {ExprSpan}
%destructor exprs {sqlite3ExprDelete(pParse->db, $$.pExpr);}
exprs(A) ::= expr(X). { A = X; }
exprs(A) ::= exprs(X) COMMA(OP) expr(Y). {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
expr(A) ::= LP(B) exprs(X) RP(E). {A.pExpr = X.pExpr; spanSet(&A,&B,&E);}
@ -2908,6 +2909,7 @@ cmd ::= DROP DATABASE ifexists id(X). {
cmd ::= call.
%type call_args_opt {ExprList*}
%destructor call_args_opt {sqlite3ExprListDelete(pParse->db, $$);}
call_args_opt(A) ::= . {A=0;}
call_args_opt(A) ::= LP exprlist(X) RP. {A=X;}