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//
// FunctionBreakpoint.cs
//
// Author: Jeffrey Stedfast <jeff@xamarin.com>
//
// Copyright (c) 2012 Xamarin Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Xml;
using System.Collections.Generic;
namespace Mono.Debugging.Client
{
[Serializable]
public class FunctionBreakpoint : Breakpoint
{
public FunctionBreakpoint (string functionName, string language) : base (null, 1, 1)
{
FunctionName = functionName;
Language = language;
}
static bool SkipArrayRank (string text, ref int index, int endIndex)
{
char c;
while (index < endIndex) {
if ((c = text[index++]) == ']')
return true;
if (c != ',' && !char.IsWhiteSpace (c) && !char.IsDigit (c))
return false;
}
return false;
}
static bool SkipGenericArgs (string text, ref int index, int endIndex)
{
char c;
while (index < endIndex) {
if ((c = text[index++]) == '>')
return true;
if (c == '<') {
if (!SkipGenericArgs (text, ref index, endIndex))
return false;
while (index < endIndex && !char.IsWhiteSpace (text[index]))
index++;
// the only chars allowed after a '>' are: '>', '[', and ','
if (">[,".IndexOf (text[index]) == -1)
return false;
} else if (c == '[') {
if (!SkipArrayRank (text, ref index, endIndex))
return false;
while (index < endIndex && !char.IsWhiteSpace (text[index]))
index++;
// the only chars allowed after a ']' are: '>', '[', and ','
if (">[,".IndexOf (text[index]) == -1)
return false;
} else if (c != '.' && c != '+' && c != ',' && !char.IsWhiteSpace (c) && !char.IsLetterOrDigit (c)) {
return false;
}
}
return false;
}
public static bool TryParseParameters (string text, int startIndex, int endIndex, out string[] paramTypes)
{
List<string> parsedParamTypes = new List<string> ();
int index = startIndex;
int start;
char c;
paramTypes = null;
while (index < endIndex) {
while (char.IsWhiteSpace (text[index]))
index++;
start = index;
while (index < endIndex) {
if ((c = text[index]) == ',')
break;
index++;
if (c == '<') {
if (!SkipGenericArgs (text, ref index, endIndex))
return false;
} else if (c == '[') {
if (!SkipArrayRank (text, ref index, endIndex))
return false;
}
}
parsedParamTypes.Add (text.Substring (start, index - start).TrimEnd ());
if (index < endIndex)
index++;
}
paramTypes = parsedParamTypes.ToArray ();
return true;
}
internal FunctionBreakpoint (XmlElement elem) : base (elem)
{
FunctionName = elem.GetAttribute ("function");
string text = elem.GetAttribute ("language");
if (string.IsNullOrEmpty (text))
Language = "C#";
else
Language = text;
if (elem.HasAttribute ("params")) {
string[] paramTypes;
text = elem.GetAttribute ("params").Trim ();
if (text.Length > 0 && TryParseParameters (text, 0, text.Length, out paramTypes))
ParamTypes = paramTypes;
else
ParamTypes = new string[0];
}
FileName = null;
}
internal override XmlElement ToXml (XmlDocument doc)
{
XmlElement elem = base.ToXml (doc);
elem.SetAttribute ("function", FunctionName);
elem.SetAttribute ("language", Language);
if (ParamTypes != null)
elem.SetAttribute ("params", string.Join (", ", ParamTypes));
return elem;
}
public string FunctionName {
get; set;
}
public string Language {
get; set;
}
public string[] ParamTypes {
get; set;
}
public override void CopyFrom (BreakEvent ev)
{
base.CopyFrom (ev);
FunctionBreakpoint bp = (FunctionBreakpoint) ev;
FunctionName = bp.FunctionName;
ParamTypes = bp.ParamTypes;
}
}
}
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