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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Resolver/CSharpInvocationResolveResult.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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contrib/ICSharpCode.NRefactory.CSharp/Resolver/CSharpInvocationResolveResult.cs
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
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// 
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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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// 
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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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// 
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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;
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using System.Collections.Generic;
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using System.Linq;
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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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{
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        /// <summary>
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        /// Represents the result of a method invocation.
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        /// </summary>
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        public class CSharpInvocationResolveResult : InvocationResolveResult
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        {
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                public readonly OverloadResolutionErrors OverloadResolutionErrors;
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                /// <summary>
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                /// Gets whether this invocation is calling an extension method using extension method syntax.
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                /// </summary>
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                public readonly bool IsExtensionMethodInvocation;
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                /// <summary>
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                /// Gets whether this invocation is calling a delegate (without explicitly calling ".Invoke()").
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                /// </summary>
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                public readonly bool IsDelegateInvocation;
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                /// <summary>
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                /// Gets whether a params-Array is being used in its expanded form.
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                /// </summary>
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                public readonly bool IsExpandedForm;
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                readonly IList<int> argumentToParameterMap;
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                public CSharpInvocationResolveResult(
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                        ResolveResult targetResult, IParameterizedMember member,
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                        IList<ResolveResult> arguments,
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                        OverloadResolutionErrors overloadResolutionErrors = OverloadResolutionErrors.None,
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                        bool isExtensionMethodInvocation = false,
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                        bool isExpandedForm = false,
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                        bool isDelegateInvocation = false,
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                        IList<int> argumentToParameterMap = null,
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                        IList<ResolveResult> initializerStatements = null
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                )
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                        : base(targetResult, member, arguments, initializerStatements)
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                {
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                        this.OverloadResolutionErrors = overloadResolutionErrors;
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                        this.IsExtensionMethodInvocation = isExtensionMethodInvocation;
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                        this.IsExpandedForm = isExpandedForm;
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                        this.IsDelegateInvocation = isDelegateInvocation;
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                        this.argumentToParameterMap = argumentToParameterMap;
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                }
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                public override bool IsError {
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                        get { return this.OverloadResolutionErrors != OverloadResolutionErrors.None; }
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                }
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                /// <summary>
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                /// Gets an array that maps argument indices to parameter indices.
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                /// For arguments that could not be mapped to any parameter, the value will be -1.
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                /// 
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                /// parameterIndex = ArgumentToParameterMap[argumentIndex]
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                /// </summary>
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                public IList<int> GetArgumentToParameterMap()
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                {
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                        return argumentToParameterMap;
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                }
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                public override IList<ResolveResult> GetArgumentsForCall()
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                {
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                        ResolveResult[] results = new ResolveResult[Member.Parameters.Count];
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                        List<ResolveResult> paramsArguments = IsExpandedForm ? new List<ResolveResult>() : null;
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                        // map arguments to parameters:
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                        for (int i = 0; i < Arguments.Count; i++) {
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                                int mappedTo;
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                                if (argumentToParameterMap != null)
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                                        mappedTo = argumentToParameterMap[i];
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                                else
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                                        mappedTo = IsExpandedForm ? Math.Min(i, results.Length - 1) : i;
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                                if (mappedTo >= 0 && mappedTo < results.Length) {
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                                        if (IsExpandedForm && mappedTo == results.Length - 1)
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                                                paramsArguments.Add(Arguments[i]);
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                                        else
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                                                results[mappedTo] = Arguments[i];
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                                }
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                        }
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                        if (IsExpandedForm)
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                                results[results.Length - 1] = new ArrayCreateResolveResult(Member.Parameters.Last().Type, null, paramsArguments.ToArray());
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                        for (int i = 0; i < results.Length; i++) {
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                                if (results[i] == null) {
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                                        if (Member.Parameters[i].IsOptional) {
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                                                results[i] = new ConstantResolveResult(Member.Parameters[i].Type, Member.Parameters[i].ConstantValue);
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                                        } else {
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                                                results[i] = ErrorResolveResult.UnknownError;
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                                        }
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                                }
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                        }
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                        return results;
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                }
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        }
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}