1 /*
2 * Copyright (C) 2008 - 2011 Vivien Malerba <malerba@gnome-db.org>
3 * Copyright (C) 2009 Bas Driessen <bas.driessen@xobas.com>
4 * Copyright (C) 2010 David King <davidk@openismus.com>
5 * Copyright (C) 2010 Murray Cumming <murrayc@murrayc.com>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
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.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 #include <string.h>
24 #include <libgda/sql-parser/gda-statement-struct.h>
25 #include <libgda/sql-parser/gda-statement-struct-unknown.h>
26 #include <libgda/sql-parser/gda-statement-struct-parts.h>
27
28 static gpointer gda_sql_statement_unknown_new (void);
29 static void gda_sql_statement_unknown_free (gpointer stmt);
30 static gpointer gda_sql_statement_unknown_copy (gpointer src);
31 static gchar *gda_sql_statement_unknown_serialize (gpointer stmt);
32
33 GdaSqlStatementContentsInfo unknown_infos = {
34 GDA_SQL_STATEMENT_UNKNOWN,
35 "UNKNOWN",
36 gda_sql_statement_unknown_new,
37 gda_sql_statement_unknown_free,
38 gda_sql_statement_unknown_copy,
39 gda_sql_statement_unknown_serialize,
40 NULL,
41 NULL,
42 NULL,
43 NULL,
44 NULL,
45 NULL
46 };
47
48 GdaSqlStatementContentsInfo *
_gda_sql_statement_unknown_get_infos(void)49 _gda_sql_statement_unknown_get_infos (void)
50 {
51 return &unknown_infos;
52 }
53
54 static gpointer
gda_sql_statement_unknown_new(void)55 gda_sql_statement_unknown_new (void)
56 {
57 GdaSqlStatementUnknown *stmt;
58 stmt = g_new0 (GdaSqlStatementUnknown, 1);
59 GDA_SQL_ANY_PART (stmt)->type = GDA_SQL_ANY_STMT_UNKNOWN;
60 return (gpointer) stmt;
61 }
62
63 static void
gda_sql_statement_unknown_free(gpointer stmt)64 gda_sql_statement_unknown_free (gpointer stmt)
65 {
66 GdaSqlStatementUnknown *unknown = (GdaSqlStatementUnknown *) stmt;
67 g_slist_foreach (unknown->expressions, (GFunc) gda_sql_expr_free, NULL);
68 g_slist_free (unknown->expressions);
69 g_free (unknown);
70 }
71
72 static gpointer
gda_sql_statement_unknown_copy(gpointer src)73 gda_sql_statement_unknown_copy (gpointer src)
74 {
75 GdaSqlStatementUnknown *dest;
76 GSList *list;
77 GdaSqlStatementUnknown *unknown = (GdaSqlStatementUnknown *) src;
78
79 dest = gda_sql_statement_unknown_new ();
80 for (list = unknown->expressions; list; list = list->next) {
81 dest->expressions = g_slist_prepend (dest->expressions,
82 gda_sql_expr_copy ((GdaSqlExpr*) list->data));
83 gda_sql_any_part_set_parent (dest->expressions->data, dest);
84 }
85 dest->expressions = g_slist_reverse (dest->expressions);
86 return dest;
87 }
88
89 static gchar *
gda_sql_statement_unknown_serialize(gpointer stmt)90 gda_sql_statement_unknown_serialize (gpointer stmt)
91 {
92 GString *string;
93 gchar *str;
94 GSList *list;
95 GdaSqlStatementUnknown *unknown = (GdaSqlStatementUnknown *) stmt;
96
97 g_return_val_if_fail (stmt, NULL);
98
99 string = g_string_new ("\"contents\":[");
100 for (list = unknown->expressions; list; list = list->next) {
101 gchar *str;
102 str = gda_sql_expr_serialize ((GdaSqlExpr*) list->data);
103 if (list != unknown->expressions)
104 g_string_append_c (string, ',');
105 g_string_append (string, str);
106 g_free (str);
107 }
108 g_string_append_c (string, ']');
109 str = string->str;
110 g_string_free (string, FALSE);
111 return str;
112 }
113
114 /**
115 * gda_sql_statement_unknown_take_expressions
116 * @stmt: a #GdaSqlStatement pointer
117 * @expressions: a list of #GdaSqlExpr pointers
118 *
119 * Sets @stmt's list of expressions
120 *
121 * @expressions's
122 * ownership is transferred to
123 * @stmt (which means @stmt is then responsible for freeing it when no longer needed).
124 */
125 void
gda_sql_statement_unknown_take_expressions(GdaSqlStatement * stmt,GSList * expressions)126 gda_sql_statement_unknown_take_expressions (GdaSqlStatement *stmt, GSList *expressions)
127 {
128 GSList *l;
129 GdaSqlStatementUnknown *unknown = (GdaSqlStatementUnknown *) stmt->contents;
130 unknown->expressions = expressions;
131
132 for (l = expressions; l; l = l->next)
133 gda_sql_any_part_set_parent (l->data, unknown);
134 }
135