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/* 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);
}
/**
* Returns the list of declarators.
*
* @return declarators list
*/
public unowned List<CCodeDeclarator> get_declarators () {
return declarators;
}
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 (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 ("VALA_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 (GNUC_DEPRECATED);
}
writer.write_string (";");
writer.write_newline ();
}
}
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