Clean-up: consumer: consumer_metadata_cache_write is not const-correct
[lttng-tools.git] / src / lib / lttng-ctl / filter / filter-ast.h
index 067624906d7ad5cd1fa8cc382c095dcd7e1f5387..926d8dd644a94004ccef75ce35028d290901666c 100644 (file)
@@ -6,20 +6,10 @@
  *
  * 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
  */
 
 /*
@@ -67,13 +57,13 @@ enum op_type {
        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,
@@ -88,7 +78,7 @@ enum unary_op_type {
        AST_UNARY_PLUS,
        AST_UNARY_MINUS,
        AST_UNARY_NOT,
-       AST_UNARY_BIN_NOT,
+       AST_UNARY_BIT_NOT,
 };
 
 enum ast_link_type {
@@ -125,19 +115,21 @@ 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;
-                       /* prev: linked dot/arrow chain (postfix expression) */
+                       /* prev: backward dot/arrow chain (postfix expression) */
                        struct filter_node *prev;
-                       /* next: linked bracket chain (prefix expression) */
+                       /* 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;
@@ -179,7 +171,6 @@ struct filter_ast *filter_parser_get_ast(struct filter_parser_ctx *parser_ctx)
        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);
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