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// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System.Collections.Generic;
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using ICSharpCode.NRefactory.Semantics;
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using ICSharpCode.NRefactory.TypeSystem;
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namespace ICSharpCode.NRefactory.CSharp.Resolver
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/// Represents an anonymous method or lambda expression.
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/// Note: the lambda has no type.
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/// To retrieve the delegate type, look at the anonymous function conversion.
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public abstract class LambdaResolveResult : ResolveResult
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protected LambdaResolveResult() : base(SpecialType.UnknownType)
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/// Gets whether there is a parameter list.
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/// This property always returns true for C# 3.0-lambdas, but may return false
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/// for C# 2.0 anonymous methods.
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public abstract bool HasParameterList { get; }
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/// Gets whether this lambda is using the C# 2.0 anonymous method syntax.
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public abstract bool IsAnonymousMethod { get; }
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/// Gets whether the lambda parameters are implicitly typed.
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/// <remarks>This property returns false for anonymous methods without parameter list.</remarks>
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public abstract bool IsImplicitlyTyped { get; }
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/// Gets whether the lambda is async.
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public abstract bool IsAsync { get; }
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/// Gets the return type inferred when the parameter types are inferred to be <paramref name="parameterTypes"/>
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public abstract IType GetInferredReturnType(IType[] parameterTypes);
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/// Gets the list of parameters.
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public abstract IList<IParameter> Parameters { get; }
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/// Gets whether the lambda body is valid for the given parameter types and return type.
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/// Produces a conversion with <see cref="Conversion.IsAnonymousFunctionConversion"/>=<c>true</c> if the lambda is valid;
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/// otherwise returns <see cref="Conversion.None"/>.
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public abstract Conversion IsValid(IType[] parameterTypes, IType returnType, CSharpConversions conversions);
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/// Gets the resolve result for the lambda body.
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/// Returns a resolve result for 'void' for statement lambdas.
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public abstract ResolveResult Body { get; }
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public override IEnumerable<ResolveResult> GetChildResults()
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return new [] { this.Body };