Commit | Line | Data |
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953192ba MD |
1 | /* |
2 | * filter-visitor-ir-check-binary-op-nesting.c | |
3 | * | |
4 | * LTTng filter IR check binary op nesting | |
5 | * | |
ab5be9fa | 6 | * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
953192ba | 7 | * |
ab5be9fa | 8 | * SPDX-License-Identifier: LGPL-2.1-only |
953192ba | 9 | * |
953192ba MD |
10 | */ |
11 | ||
c9e313bc | 12 | #include "filter-ast.hpp" |
c9e313bc | 13 | #include "filter-ir.hpp" |
28ab034a | 14 | #include "filter-parser.hpp" |
953192ba | 15 | |
c9e313bc SM |
16 | #include <common/compat/errno.hpp> |
17 | #include <common/macros.hpp> | |
a187da1a | 18 | |
28ab034a JG |
19 | #include <inttypes.h> |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <unistd.h> | |
24 | ||
25 | static int check_bin_op_nesting_recursive(struct ir_op *node, int nesting) | |
953192ba MD |
26 | { |
27 | switch (node->op) { | |
28 | case IR_OP_UNKNOWN: | |
29 | default: | |
30 | fprintf(stderr, "[error] %s: unknown op type\n", __func__); | |
31 | return -EINVAL; | |
32 | ||
33 | case IR_OP_ROOT: | |
28ab034a | 34 | return check_bin_op_nesting_recursive(node->u.root.child, nesting); |
953192ba MD |
35 | case IR_OP_LOAD: |
36 | return 0; | |
37 | case IR_OP_UNARY: | |
28ab034a | 38 | return check_bin_op_nesting_recursive(node->u.unary.child, nesting); |
953192ba MD |
39 | case IR_OP_BINARY: |
40 | { | |
41 | int ret; | |
42 | ||
28ab034a | 43 | ret = check_bin_op_nesting_recursive(node->u.binary.left, nesting + 1); |
953192ba MD |
44 | if (ret) |
45 | return ret; | |
28ab034a | 46 | return check_bin_op_nesting_recursive(node->u.binary.right, nesting + 1); |
953192ba MD |
47 | } |
48 | case IR_OP_LOGICAL: | |
49 | { | |
50 | int ret; | |
51 | ||
28ab034a | 52 | ret = check_bin_op_nesting_recursive(node->u.logical.left, nesting); |
953192ba MD |
53 | if (ret) |
54 | return ret; | |
28ab034a | 55 | return check_bin_op_nesting_recursive(node->u.logical.right, nesting); |
953192ba MD |
56 | } |
57 | } | |
58 | } | |
59 | ||
60 | int filter_visitor_ir_check_binary_op_nesting(struct filter_parser_ctx *ctx) | |
61 | { | |
62 | return check_bin_op_nesting_recursive(ctx->ir_root, 0); | |
63 | } |