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/* valaintegerliteral.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 integer literal in the source code.
*/
public class Vala.IntegerLiteral : Literal {
/**
* The literal value.
*/
public string! value { get; set; }
/**
* Creates a new integer literal.
*
* @param i literal value
* @param source reference to source code
* @return newly created integer literal
*/
public IntegerLiteral (string! i, SourceReference source = null) {
value = i;
source_reference = source;
}
public override void accept (CodeVisitor! visitor) {
visitor.visit_integer_literal (this);
}
public override string! to_string () {
return value;
}
/**
* Returns the type name of the value this literal represents.
*
* @return the name of literal type
*/
public string! get_type_name () {
string number = value;
int l = 0;
while (number.has_suffix ("L")) {
l++;
number = number.ndup (number.size () - 1);
}
bool u = false;
if (number.has_suffix ("U")) {
u = true;
number = number.ndup (number.size () - 1);
}
int64 n = number.to_int64 ();
if (!u && n > 0x7fffffff) {
// value doesn't fit into signed 32-bit
l = 2;
} else if (u && n > 0xffffffff) {
// value doesn't fit into unsigned 32-bit
l = 2;
}
if (l == 0) {
if (u) {
return "uint";
} else {
return "int";
}
} else if (l == 1) {
if (u) {
return "ulong";
} else {
return "long";
}
} else {
if (u) {
return "uint64";
} else {
return "int64";
}
}
}
public override bool is_pure () {
return true;
}
}
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