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//
// MetadataReference.cs: Represents a metadata reference in expression.
//
// Author:
// Marek Sieradzki (marek.sieradzki@gmail.com)
//
// (C) 2005 Marek Sieradzki
//
// 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.
#if NET_2_0
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
namespace Microsoft.Build.BuildEngine {
internal class MetadataReference : IReference {
string itemName;
string metadataName;
int start;
int length;
string original;
public MetadataReference (string original, string itemName, string metadataName, int start, int length)
{
this.original = original;
this.itemName = itemName;
this.metadataName = metadataName;
this.start = start;
this.length = length;
}
public string ItemName {
get { return itemName; }
}
public string MetadataName {
get { return metadataName; }
}
public bool IsQualified {
get { return (itemName == null) ? false : true; }
}
public int Start {
get { return start; }
}
public int End {
get { return start + length - 1; }
}
public string ConvertToString (Project project, ExpressionOptions options)
{
return project.GetMetadataBatched (itemName, metadataName);
}
public ITaskItem [] ConvertToITaskItemArray (Project project, ExpressionOptions options)
{
List<ITaskItem> items = new List<ITaskItem> ();
if (IsQualified) {
// Bucket would have item lists with same metadata values,
// so just get the value from the first item
BuildItemGroup group;
if (project.TryGetEvaluatedItemByNameBatched (itemName, out group))
BuildItemGroupToITaskItems (group, items, true);
} else {
// Get unique metadata values from _all_ item lists
foreach (BuildItemGroup group in project.GetAllItemGroups ())
BuildItemGroupToITaskItems (group, items, false);
}
return items.Count == 0 ? null : items.ToArray ();
}
// Gets metadata values from build item @group and adds as ITaskItem
// objects to @items
// @only_one: Batched case, all item lists would have same metadata values,
// just return first one
void BuildItemGroupToITaskItems (BuildItemGroup group, List<ITaskItem> items, bool only_one)
{
foreach (BuildItem item in group) {
if (!item.HasMetadata (metadataName))
continue;
string metadata = item.GetMetadata (metadataName);
if (HasTaskItem (items, metadata))
//return only unique metadata values
continue;
items.Add (new TaskItem (metadata));
if (only_one)
break;
}
}
private bool HasTaskItem (List<ITaskItem> items, string itemspec)
{
foreach (ITaskItem task_item in items)
if (task_item.ItemSpec == itemspec)
return true;
return false;
}
public override string ToString ()
{
if (IsQualified)
return String.Format ("%({0}.{1})", itemName, metadataName);
else
return String.Format ("%({0})", metadataName);
}
public string OriginalString {
get { return original; }
}
}
}
#endif
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