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// Copyright (c) 2011 AlphaSierraPapa for the SharpDevelop Team
//
// 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.Linq;
using System.Reflection;
using ICSharpCode.NRefactory.CSharp;
using ICSharpCode.NRefactory.PatternMatching;
using Mono.Cecil;
namespace ICSharpCode.Decompiler.Ast.Transforms
{
internal sealed class TypePattern : Pattern
{
readonly string ns;
readonly string name;
public TypePattern(Type type)
{
ns = type.Namespace;
name = type.Name;
}
public override bool DoMatch(INode other, Match match)
{
ComposedType ct = other as ComposedType;
AstType o;
if (ct != null && !ct.HasNullableSpecifier && ct.PointerRank == 0 && !ct.ArraySpecifiers.Any()) {
// Special case: ILSpy sometimes produces a ComposedType but then removed all array specifiers
// from it. In that case, we need to look at the base type for the annotations.
o = ct.BaseType;
} else {
o = other as AstType;
if (o == null)
return false;
}
TypeReference tr = o.Annotation<TypeReference>();
return tr != null && tr.Namespace == ns && tr.Name == name;
}
public override string ToString()
{
return name;
}
}
internal sealed class LdTokenPattern : Pattern
{
AnyNode childNode;
public LdTokenPattern(string groupName)
{
childNode = new AnyNode(groupName);
}
public override bool DoMatch(INode other, Match match)
{
InvocationExpression ie = other as InvocationExpression;
if (ie != null && ie.Annotation<LdTokenAnnotation>() != null && ie.Arguments.Count == 1) {
return childNode.DoMatch(ie.Arguments.Single(), match);
}
return false;
}
public override string ToString()
{
return "ldtoken(...)";
}
}
/// <summary>
/// typeof-Pattern that applies on the expanded form of typeof (prior to ReplaceMethodCallsWithOperators)
/// </summary>
internal sealed class TypeOfPattern : Pattern
{
INode childNode;
public TypeOfPattern(string groupName)
{
childNode = new TypePattern(typeof(Type)).ToType().Invoke(
"GetTypeFromHandle", new TypeOfExpression(new AnyNode(groupName)).Member("TypeHandle"));
}
public override bool DoMatch(INode other, Match match)
{
return childNode.DoMatch(other, match);
}
public override string ToString()
{
return "typeof(...)";
}
}
}
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