File: valaccodedeclaration.vala

package info (click to toggle)
vala 0.42.5-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 41,584 kB
  • sloc: ansic: 557,663; sh: 4,808; xml: 3,135; makefile: 2,864; yacc: 1,218; lex: 374; perl: 106
file content (131 lines) | stat: -rw-r--r-- 3,708 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/* valaccodedeclaration.vala
 *
 * Copyright (C) 2006-2010  Jürg Billeter
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * 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
 *
 * Author:
 * 	Jürg Billeter <j@bitron.ch>
 */

using GLib;

/**
 * Represents a local variable declaration in the C code.
 */
public class Vala.CCodeDeclaration : CCodeStatement {
	/**
	 * The type of the local variable.
	 */
	public string type_name { get; set; }

	private List<CCodeDeclarator> declarators = new ArrayList<CCodeDeclarator> ();

	public CCodeDeclaration (string type_name) {
		this.type_name = type_name;
	}

	/**
	 * Adds the specified declarator to this declaration.
	 *
	 * @param decl a declarator
	 */
	public void add_declarator (CCodeDeclarator decl) {
		declarators.add (decl);
	}

	public override void write (CCodeWriter writer) {
		if ((modifiers & (CCodeModifiers.STATIC | CCodeModifiers.INTERNAL | CCodeModifiers.EXTERN)) == 0) {
			foreach (CCodeDeclarator decl in declarators) {
				decl.write_initialization (writer);
			}
		}
	}

	private bool has_initializer () {
		foreach (CCodeDeclarator decl in declarators) {
			var var_decl = decl as CCodeVariableDeclarator;
			if (var_decl != null && var_decl.initializer == null) {
				return false;
			}
		}
		return true;
	}

	public override void write_declaration (CCodeWriter writer) {
		if ((modifiers & (CCodeModifiers.STATIC | CCodeModifiers.INTERNAL | CCodeModifiers.EXTERN)) != 0) {
			// combined declaration and initialization for static and extern variables
			writer.write_indent (line);
			if ((modifiers & CCodeModifiers.INTERNAL) != 0) {
				writer.write_string ("G_GNUC_INTERNAL ");
			}
			if ((modifiers & CCodeModifiers.STATIC) != 0) {
				writer.write_string ("static ");
			}
			if ((modifiers & CCodeModifiers.VOLATILE) != 0) {
				writer.write_string ("volatile ");
			}
			if ((modifiers & CCodeModifiers.EXTERN) != 0 && !has_initializer ()) {
				writer.write_string ("extern ");
			}
			if ((modifiers & CCodeModifiers.THREAD_LOCAL) != 0) {
				writer.write_string ("thread_local ");
			}
			writer.write_string (type_name);
			writer.write_string (" ");

			bool first = true;
			foreach (CCodeDeclarator decl in declarators) {
				if (!first) {
					writer.write_string (", ");
				} else {
					first = false;
				}
				decl.write (writer);
			}

			writer.write_string (";");
			writer.write_newline ();
			return;
		}

		writer.write_indent ();
		if ((modifiers & CCodeModifiers.REGISTER) == CCodeModifiers.REGISTER) {
			writer.write_string ("register ");
		}
		if ((modifiers & CCodeModifiers.VOLATILE) != 0) {
			writer.write_string ("volatile ");
		}
		writer.write_string (type_name);
		writer.write_string (" ");

		bool first = true;
		foreach (CCodeDeclarator decl in declarators) {
			if (!first) {
				writer.write_string (", ");
			} else {
				first = false;
			}
			decl.write_declaration (writer);
		}

		if (CCodeModifiers.DEPRECATED in modifiers) {
			writer.write_string (" G_GNUC_DEPRECATED");
		}

		writer.write_string (";");
		writer.write_newline ();
	}
}