2 * filter-visitor-ir-check-binary-comparator.c
4 * LTTng filter IR check binary comparator
6 * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 * This library is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU Lesser General Public License, version 2.1 only,
10 * as published by the Free Software Foundation.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
29 #include "filter-ast.h"
30 #include "filter-parser.h"
31 #include "filter-ir.h"
34 int check_bin_comparator(struct ir_op
*node
)
39 fprintf(stderr
, "[error] %s: unknown op type\n", __func__
);
43 return check_bin_comparator(node
->u
.root
.child
);
47 return check_bin_comparator(node
->u
.unary
.child
);
52 if (node
->u
.binary
.left
->data_type
== IR_DATA_STRING
53 || node
->u
.binary
.right
->data_type
55 if (node
->u
.binary
.type
!= AST_OP_EQ
56 && node
->u
.binary
.type
!= AST_OP_NE
) {
57 fprintf(stderr
, "[error] Only '==' and '!=' comparators are allowed for strings\n");
62 ret
= check_bin_comparator(node
->u
.binary
.left
);
65 return check_bin_comparator(node
->u
.binary
.right
);
71 ret
= check_bin_comparator(node
->u
.logical
.left
);
74 return check_bin_comparator(node
->u
.logical
.right
);
79 int filter_visitor_ir_check_binary_comparator(struct filter_parser_ctx
*ctx
)
81 return check_bin_comparator(ctx
->ir_root
);
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