Add string-utils convenience library
[lttng-tools.git] / src / lib / lttng-ctl / filter / filter-ir.h
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1#ifndef _FILTER_IR_H
2#define _FILTER_IR_H
3
4/*
5 * filter-ir.h
6 *
7 * LTTng filter ir
8 *
9 * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
10 *
11 * This library is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License, version 2.1 only,
13 * as published by the Free Software Foundation.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this library; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25#include "filter-ast.h"
26
27enum ir_op_signedness {
28 IR_SIGN_UNKNOWN = 0,
29 IR_SIGNED,
30 IR_UNSIGNED,
31 IR_SIGN_DYN, /* signedness determined dynamically */
32};
33
34enum ir_data_type {
35 IR_DATA_UNKNOWN = 0,
36 IR_DATA_STRING,
37 IR_DATA_NUMERIC, /* numeric and boolean */
e90d8561 38 IR_DATA_FLOAT,
953192ba 39 IR_DATA_FIELD_REF,
586dc72f 40 IR_DATA_GET_CONTEXT_REF,
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41};
42
43enum ir_op_type {
44 IR_OP_UNKNOWN = 0,
45 IR_OP_ROOT,
46 IR_OP_LOAD,
47 IR_OP_UNARY,
48 IR_OP_BINARY,
49 IR_OP_LOGICAL,
50};
51
52/* left or right child */
53enum ir_side {
54 IR_SIDE_UNKNOWN = 0,
55 IR_LEFT,
56 IR_RIGHT,
57};
58
59struct ir_op_root {
60 struct ir_op *child;
61};
62
63struct ir_op_load {
64 union {
65 char *string;
66 int64_t num;
e90d8561 67 double flt;
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68 char *ref;
69 } u;
70};
71
72struct ir_op_unary {
73 enum unary_op_type type;
74 struct ir_op *child;
75};
76
77struct ir_op_binary {
78 enum op_type type;
79 struct ir_op *left;
80 struct ir_op *right;
81};
82
83struct ir_op_logical {
84 enum op_type type;
85 struct ir_op *left;
86 struct ir_op *right;
87};
88
89struct ir_op {
90 /* common to all ops */
91 enum ir_op_type op;
92 enum ir_data_type data_type;
93 enum ir_op_signedness signedness;
94 enum ir_side side;
95
96 union {
97 struct ir_op_root root;
98 struct ir_op_load load;
99 struct ir_op_unary unary;
100 struct ir_op_binary binary;
101 struct ir_op_logical logical;
102 } u;
103};
104
105#endif /* _FILTER_IR_H */
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