/
Utils.cs
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/
Utils.cs
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//
// Author:
// Marek Habersack <grendel@twistedcode.net>
//
// Copyright (c) 2010, Marek Habersack
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the distribution.
// * Neither the name of Marek Habersack nor the names of the contributors may be used to endorse or promote products derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Mono.Cecil;
using Mono.Cecil.Metadata;
using Mono.Collections.Generic;
namespace StubGen
{
public class Utils
{
static string indentString = String.Empty;
static ulong oldIndent = 0;
static List <string> usings;
public static ulong Indent = 0;
public static string IndentString {
get {
if (oldIndent != Utils.Indent) {
oldIndent = Indent;
if (Indent == 0)
indentString = String.Empty;
else
indentString = new String ('\t', (int)Indent);
}
return indentString;
}
}
public static List <string> Usings {
get {
if (usings == null)
usings = new List<string> ();
return usings;
}
}
public static string FormatValue (object v, TypeReference type)
{
return FormatValue (v, type, Usings);
}
static int CountBits (object constant)
{
if (constant == null)
return -1;
switch (Type.GetTypeCode (constant.GetType ())) {
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
case TypeCode.UInt32:
case TypeCode.Int64:
case TypeCode.UInt64:
break;
default:
return -1;
}
ulong value = Convert.ToUInt64 (constant);
int nbits;
for (nbits = 0; value > 0; nbits++)
value &= value - 1;
return nbits;
}
public static string FormatValue (object v, TypeReference type, List <string> usings)
{
if (v == null)
return "null";
string ns = type.Namespace;
usings.AddUsing (ns);
TypeDefinition tdef = type.ResolveType ();
string ret;
if (tdef != null && tdef.IsEnum && tdef.HasFields) {
Collection <CustomAttribute> attrs = tdef.CustomAttributes;
CustomAttribute flagsAttr = attrs == null || attrs.Count == 0 ? null : attrs.First ((CustomAttribute attr) => {
if (attr.AttributeType.FullName == "System.FlagsAttribute")
return true;
return false;
});
bool flags = flagsAttr != null;
ns = tdef.Namespace;
usings.AddUsing (ns);
string typeName = tdef.FormatName (); //tdef.Name.Replace ("/", ".");
var sb = new StringBuilder ();
bool first = true;
object constant;
int bits;
foreach (FieldDefinition fd in tdef.Fields) {
if (flags) {
constant = fd.Constant;
bits = CountBits (constant);
if (bits < 0 || bits > 1)
continue;
if (IsBitSet (v, constant)) {
if (first)
first = false;
else
sb.Append (" | ");
sb.AppendFormat ("{0}.{1}", typeName, fd.Name);
}
} else if (v.Equals (fd.Constant)) {
sb.AppendFormat ("{0}.{1}", typeName, fd.Name);
break;
}
}
return sb.ToString ();
}
ret = v.ToString ();
if (v is string)
return "\"" + ret.Replace ("\\", "\\\\") + "\"";
if (v is bool)
return ret.ToLower ();
return ret;
}
static bool IsBitSet (object left, object right)
{
if (left == null || right == null)
return false;
Type ltype = left.GetType ();
Type rtype = right.GetType ();
if (ltype != rtype)
return false;
switch (Type.GetTypeCode (ltype)) {
case TypeCode.Byte:
return (((byte)left) & ((byte)right)) != 0;
case TypeCode.SByte:
return (((sbyte)left) & ((sbyte)right)) != 0;
case TypeCode.Int16:
return (((short)left) & ((short)right)) != 0;
case TypeCode.Int32:
return (((int)left) & ((int)right)) != 0;
case TypeCode.Int64:
return (((long)left) & ((long)right)) != 0;
case TypeCode.UInt16:
return (((ushort)left) & ((ushort)right)) != 0;
case TypeCode.UInt32:
return (((uint)left) & ((uint)right)) != 0;
case TypeCode.UInt64:
return (((ulong)left) & ((ulong)right)) != 0;
default:
return false;
}
}
}
}