/NRefactory/ICSharpCode.NRefactory/Semantics/MemberResolveResult.cs
http://github.com/icsharpcode/ILSpy · C# · 148 lines · 102 code · 17 blank · 29 comment · 13 complexity · c932d6958abb11407e9de48c79a1f61c MD5 · raw file
- // 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.Globalization;
- using System.Linq;
- using ICSharpCode.NRefactory.TypeSystem;
- namespace ICSharpCode.NRefactory.Semantics
- {
- /// <summary>
- /// Represents the result of a member invocation.
- /// Used for field/property/event access.
- /// Also, <see cref="InvocationResolveResult"/> derives from MemberResolveResult.
- /// </summary>
- public class MemberResolveResult : ResolveResult
- {
- readonly IMember member;
- readonly bool isConstant;
- readonly object constantValue;
- readonly ResolveResult targetResult;
- readonly bool isVirtualCall;
-
- public MemberResolveResult(ResolveResult targetResult, IMember member, IType returnTypeOverride = null)
- : base(returnTypeOverride ?? ComputeType(member))
- {
- this.targetResult = targetResult;
- this.member = member;
- var thisRR = targetResult as ThisResolveResult;
- this.isVirtualCall = member.IsOverridable && !(thisRR != null && thisRR.CausesNonVirtualInvocation);
-
- IField field = member as IField;
- if (field != null) {
- isConstant = field.IsConst;
- if (isConstant)
- constantValue = field.ConstantValue;
- }
- }
-
- public MemberResolveResult(ResolveResult targetResult, IMember member, bool isVirtualCall, IType returnTypeOverride = null)
- : base(returnTypeOverride ?? ComputeType(member))
- {
- this.targetResult = targetResult;
- this.member = member;
- this.isVirtualCall = isVirtualCall;
- IField field = member as IField;
- if (field != null) {
- isConstant = field.IsConst;
- if (isConstant)
- constantValue = field.ConstantValue;
- }
- }
-
- static IType ComputeType(IMember member)
- {
- switch (member.SymbolKind) {
- case SymbolKind.Constructor:
- return member.DeclaringType;
- case SymbolKind.Field:
- if (((IField)member).IsFixed)
- return new PointerType(member.ReturnType);
- break;
- }
- return member.ReturnType;
- }
-
- public MemberResolveResult(ResolveResult targetResult, IMember member, IType returnType, bool isConstant, object constantValue)
- : base(returnType)
- {
- this.targetResult = targetResult;
- this.member = member;
- this.isConstant = isConstant;
- this.constantValue = constantValue;
- }
-
- public MemberResolveResult(ResolveResult targetResult, IMember member, IType returnType, bool isConstant, object constantValue, bool isVirtualCall)
- : base(returnType)
- {
- this.targetResult = targetResult;
- this.member = member;
- this.isConstant = isConstant;
- this.constantValue = constantValue;
- this.isVirtualCall = isVirtualCall;
- }
-
- public ResolveResult TargetResult {
- get { return targetResult; }
- }
-
- /// <summary>
- /// Gets the member.
- /// This property never returns null.
- /// </summary>
- public IMember Member {
- get { return member; }
- }
-
- /// <summary>
- /// Gets whether this MemberResolveResult is a virtual call.
- /// </summary>
- public bool IsVirtualCall {
- get { return isVirtualCall; }
- }
-
- public override bool IsCompileTimeConstant {
- get { return isConstant; }
- }
-
- public override object ConstantValue {
- get { return constantValue; }
- }
-
- public override IEnumerable<ResolveResult> GetChildResults()
- {
- if (targetResult != null)
- return new[] { targetResult };
- else
- return Enumerable.Empty<ResolveResult>();
- }
-
- public override string ToString()
- {
- return string.Format(CultureInfo.InvariantCulture, "[{0} {1}]", GetType().Name, member);
- }
-
- public override DomRegion GetDefinitionRegion()
- {
- return member.Region;
- }
- }
- }