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// Copyright (c) 2010-2013 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.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Linq;
using ICSharpCode.NRefactory.CSharp.Resolver;
using ICSharpCode.NRefactory.Semantics;
using ICSharpCode.NRefactory.TypeSystem;
using ICSharpCode.NRefactory.TypeSystem.Implementation;
using ICSharpCode.NRefactory.Utils;
namespace ICSharpCode.NRefactory.CSharp.TypeSystem
{
[Serializable]
public sealed class CSharpAttribute : IUnresolvedAttribute
{
ITypeReference attributeType;
DomRegion region;
IList<IConstantValue> positionalArguments;
IList<KeyValuePair<string, IConstantValue>> namedCtorArguments;
IList<KeyValuePair<string, IConstantValue>> namedArguments;
public CSharpAttribute(ITypeReference attributeType, DomRegion region,
IList<IConstantValue> positionalArguments,
IList<KeyValuePair<string, IConstantValue>> namedCtorArguments,
IList<KeyValuePair<string, IConstantValue>> namedArguments)
{
if (attributeType == null)
throw new ArgumentNullException("attributeType");
this.attributeType = attributeType;
this.region = region;
this.positionalArguments = positionalArguments ?? EmptyList<IConstantValue>.Instance;
this.namedCtorArguments = namedCtorArguments ?? EmptyList<KeyValuePair<string, IConstantValue>>.Instance;
this.namedArguments = namedArguments ?? EmptyList<KeyValuePair<string, IConstantValue>>.Instance;
}
public DomRegion Region {
get { return region; }
}
public ITypeReference AttributeType {
get { return attributeType; }
}
public IAttribute CreateResolvedAttribute(ITypeResolveContext context)
{
return new CSharpResolvedAttribute((CSharpTypeResolveContext)context, this);
}
sealed class CSharpResolvedAttribute : IAttribute
{
readonly CSharpTypeResolveContext context;
readonly CSharpAttribute unresolved;
readonly IType attributeType;
IList<KeyValuePair<IMember, ResolveResult>> namedArguments;
public CSharpResolvedAttribute(CSharpTypeResolveContext context, CSharpAttribute unresolved)
{
this.context = context;
this.unresolved = unresolved;
// Pretty much any access to the attribute checks the type first, so
// we don't need to use lazy-loading for that.
this.attributeType = unresolved.AttributeType.Resolve(context);
}
DomRegion IAttribute.Region {
get { return unresolved.Region; }
}
IType IAttribute.AttributeType {
get { return attributeType; }
}
ResolveResult ctorInvocation;
InvocationResolveResult GetCtorInvocation()
{
ResolveResult rr = LazyInit.VolatileRead(ref this.ctorInvocation);
if (rr != null) {
return rr as InvocationResolveResult;
} else {
CSharpResolver resolver = new CSharpResolver(context);
int totalArgumentCount = unresolved.positionalArguments.Count + unresolved.namedCtorArguments.Count;
ResolveResult[] arguments = new ResolveResult[totalArgumentCount];
string[] argumentNames = new string[totalArgumentCount];
int i = 0;
while (i < unresolved.positionalArguments.Count) {
IConstantValue cv = unresolved.positionalArguments[i];
arguments[i] = cv.Resolve(context);
i++;
}
foreach (var pair in unresolved.namedCtorArguments) {
argumentNames[i] = pair.Key;
arguments[i] = pair.Value.Resolve(context);
i++;
}
rr = resolver.ResolveObjectCreation(attributeType, arguments, argumentNames);
return LazyInit.GetOrSet(ref this.ctorInvocation, rr) as InvocationResolveResult;
}
}
IMethod IAttribute.Constructor {
get {
var invocation = GetCtorInvocation();
if (invocation != null)
return invocation.Member as IMethod;
else
return null;
}
}
IList<ResolveResult> positionalArguments;
IList<ResolveResult> IAttribute.PositionalArguments {
get {
var result = LazyInit.VolatileRead(ref this.positionalArguments);
if (result != null) {
return result;
} else {
var invocation = GetCtorInvocation();
if (invocation != null)
result = invocation.GetArgumentsForCall();
else
result = EmptyList<ResolveResult>.Instance;
return LazyInit.GetOrSet(ref this.positionalArguments, result);
}
}
}
IList<KeyValuePair<IMember, ResolveResult>> IAttribute.NamedArguments {
get {
var namedArgs = LazyInit.VolatileRead(ref this.namedArguments);
if (namedArgs != null) {
return namedArgs;
} else {
namedArgs = new List<KeyValuePair<IMember, ResolveResult>>();
foreach (var pair in unresolved.namedArguments) {
IMember member = attributeType.GetMembers(m => (m.SymbolKind == SymbolKind.Field || m.SymbolKind == SymbolKind.Property) && m.Name == pair.Key).FirstOrDefault();
if (member != null) {
ResolveResult val = pair.Value.Resolve(context);
namedArgs.Add(new KeyValuePair<IMember, ResolveResult>(member, val));
}
}
return LazyInit.GetOrSet(ref this.namedArguments, namedArgs);
}
}
}
}
}
}
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