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/* valaccodeifstatement.vala
*
* Copyright (C) 2006-2008 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 an if selection statement in the C code.
*/
public class Vala.CCodeIfStatement : CCodeStatement {
/**
* The boolean condition to evaluate.
*/
public CCodeExpression condition { get; set; }
/**
* The statement to be evaluated if the condition holds.
*/
public CCodeStatement true_statement { get; set; }
/**
* The optional statement to be evaluated if the condition doesn't hold.
*/
public CCodeStatement? false_statement { get; set; }
public CCodeIfStatement (CCodeExpression cond, CCodeStatement true_stmt, CCodeStatement? false_stmt = null) {
condition = cond;
true_statement = true_stmt;
false_statement = false_stmt;
}
/**
* Specifies whether this if statement is part of an else if statement.
* This only affects the output formatting.
*/
public bool else_if { get; set; }
public override void write (CCodeWriter writer) {
if (!else_if) {
writer.write_indent (line);
} else {
writer.write_string (" ");
}
writer.write_string ("if (");
if (condition != null) {
condition.write (writer);
}
writer.write_string (")");
/* else shouldn't be on a separate line */
if (false_statement != null && true_statement is CCodeBlock) {
var cblock = (CCodeBlock) true_statement;
cblock.suppress_newline = true;
}
true_statement.write (writer);
if (false_statement != null) {
if (writer.bol) {
writer.write_indent ();
writer.write_string ("else");
} else {
writer.write_string (" else");
}
/* else if should be on one line */
if (false_statement is CCodeIfStatement) {
var cif = (CCodeIfStatement) false_statement;
cif.else_if = true;
}
false_statement.write (writer);
}
}
}
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