*
* LTTng filter AST
*
- * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
*
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
AST_OP_MOD,
AST_OP_PLUS,
AST_OP_MINUS,
- AST_OP_RSHIFT,
- AST_OP_LSHIFT,
+ AST_OP_BIT_RSHIFT,
+ AST_OP_BIT_LSHIFT,
AST_OP_AND,
AST_OP_OR,
- AST_OP_BIN_AND,
- AST_OP_BIN_OR,
- AST_OP_BIN_XOR,
+ AST_OP_BIT_AND,
+ AST_OP_BIT_OR,
+ AST_OP_BIT_XOR,
AST_OP_EQ,
AST_OP_NE,
AST_UNARY_PLUS,
AST_UNARY_MINUS,
AST_UNARY_NOT,
- AST_UNARY_BIN_NOT,
+ AST_UNARY_BIT_NOT,
};
enum ast_link_type {
AST_LINK_UNKNOWN = 0,
AST_LINK_DOT,
AST_LINK_RARROW,
+ AST_LINK_BRACKET,
};
struct filter_node {
enum ast_link_type post_op; /* reverse */
enum ast_link_type pre_op; /* forward */
union {
- char *string;
+ const char *string;
uint64_t constant;
double float_constant;
- char *identifier;
+ const char *identifier;
/*
* child can be nested.
*/
struct filter_node *child;
} u;
- /* linked dot/arrow chain */
+ /* prev: backward dot/arrow chain (postfix expression) */
struct filter_node *prev;
+ /* next: forward dot/arrow chain, generated by a visitor. */
struct filter_node *next;
+ /* next_bracket: linked bracket chain (prefix expression) */
+ struct filter_node *next_bracket;
} expression;
struct {
enum op_type type;
return parser_ctx->ast;
}
-int filter_visitor_set_parent(struct filter_parser_ctx *ctx);
int filter_visitor_print_xml(struct filter_parser_ctx *ctx, FILE *stream,
int indent);
int filter_visitor_ir_generate(struct filter_parser_ctx *ctx);