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@ -65,10 +65,10 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -65,10 +65,10 @@ namespace ICSharpCode.Decompiler.CSharp
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/// * Otherwise, the C# type of the resulting expression shall match the IL stack type,
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/// and the evaluated values shall be the same.
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/// </remarks>
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class ExpressionBuilder : ILVisitor<TranslationContext, TranslatedExpression> |
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sealed class ExpressionBuilder : ILVisitor<TranslationContext, TranslatedExpression> |
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{ |
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readonly IDecompilerTypeSystem typeSystem; |
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readonly ITypeResolveContext decompilationContext; |
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internal readonly ITypeResolveContext decompilationContext; |
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internal readonly ILFunction currentFunction; |
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internal readonly ICompilation compilation; |
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internal readonly CSharpResolver resolver; |
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@ -134,7 +134,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -134,7 +134,7 @@ namespace ICSharpCode.Decompiler.CSharp
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}; |
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var cexpr = inst.AcceptVisitor(this, context); |
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#if DEBUG
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if (inst.ResultType != StackType.Void && cexpr.Type.Kind != TypeKind.Unknown && inst.ResultType != StackType.Unknown) { |
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if (inst.ResultType != StackType.Void && cexpr.Type.Kind != TypeKind.Unknown && inst.ResultType != StackType.Unknown && cexpr.Type.Kind != TypeKind.None) { |
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// Validate the Translate post-condition (documented at beginning of this file):
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if (inst.ResultType.IsIntegerType()) { |
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Debug.Assert(cexpr.Type.GetStackType().IsIntegerType(), "IL instructions of integer type must convert into C# expressions of integer type"); |
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@ -181,7 +181,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -181,7 +181,7 @@ namespace ICSharpCode.Decompiler.CSharp
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expr.WithRR(new ILVariableResolveResult(variable, elementType)); |
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expr = new DirectionExpression(FieldDirection.Ref, expr); |
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return expr.WithRR(new ByReferenceResolveResult(elementType, isOut: false)); |
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return expr.WithRR(new ByReferenceResolveResult(elementType, ReferenceKind.Ref)); |
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} else { |
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return expr.WithRR(new ILVariableResolveResult(variable, variable.Type)); |
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} |
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@ -189,7 +189,35 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -189,7 +189,35 @@ namespace ICSharpCode.Decompiler.CSharp
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internal bool HidesVariableWithName(string name) |
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{ |
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return currentFunction.Ancestors.OfType<ILFunction>().SelectMany(f => f.Variables).Any(v => v.Name == name); |
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return currentFunction.Ancestors.OfType<ILFunction>().Any(HidesVariableOrNestedFunction); |
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bool HidesVariableOrNestedFunction(ILFunction function) |
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{ |
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foreach (var v in function.Variables) { |
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if (v.Name == name) |
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return true; |
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} |
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foreach (var f in function.LocalFunctions.OfType<ILFunction>()) { |
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if (f.Name == name) |
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return true; |
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} |
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return false; |
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} |
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} |
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internal ILFunction ResolveLocalFunction(IMethod method) |
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{ |
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Debug.Assert(method.IsLocalFunction); |
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method = method.ReducedFrom; |
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foreach (var parent in currentFunction.Ancestors.OfType<ILFunction>()) { |
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var definition = parent.LocalFunctions.FirstOrDefault(f => f.Method.Equals(method)); |
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if (definition != null) { |
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return definition; |
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} |
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} |
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return null; |
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} |
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bool RequiresQualifier(IMember member, TranslatedExpression target) |
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@ -220,19 +248,20 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -220,19 +248,20 @@ namespace ICSharpCode.Decompiler.CSharp
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bool targetCasted = false; |
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var targetResolveResult = requireTarget ? target.ResolveResult : null; |
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bool IsUnambiguousAccess() |
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bool IsUnambiguousAccess(out MemberResolveResult result) |
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{ |
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if (targetResolveResult == null) { |
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var result = resolver.ResolveSimpleName(field.Name, EmptyList<IType>.Instance, isInvocationTarget: false) as MemberResolveResult; |
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result = resolver.ResolveSimpleName(field.Name, EmptyList<IType>.Instance, isInvocationTarget: false) as MemberResolveResult; |
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return !(result == null || result.IsError || !result.Member.Equals(field, NormalizeTypeVisitor.TypeErasure)); |
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} else { |
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var lookup = new MemberLookup(resolver.CurrentTypeDefinition, resolver.CurrentTypeDefinition.ParentModule); |
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var result = lookup.Lookup(target.ResolveResult, field.Name, EmptyList<IType>.Instance, false) as MemberResolveResult; |
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result = lookup.Lookup(target.ResolveResult, field.Name, EmptyList<IType>.Instance, false) as MemberResolveResult; |
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return !(result == null || result.IsError || !result.Member.Equals(field, NormalizeTypeVisitor.TypeErasure)); |
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} |
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} |
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while (!IsUnambiguousAccess()) { |
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MemberResolveResult mrr; |
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while (!IsUnambiguousAccess(out mrr)) { |
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if (!requireTarget) { |
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requireTarget = true; |
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targetResolveResult = target.ResolveResult; |
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@ -244,13 +273,16 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -244,13 +273,16 @@ namespace ICSharpCode.Decompiler.CSharp
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break; |
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} |
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} |
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if (mrr == null) { |
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mrr = new MemberResolveResult(target.ResolveResult, field); |
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} |
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if (requireTarget) { |
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return new MemberReferenceExpression(target, field.Name) |
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.WithRR(new MemberResolveResult(target.ResolveResult, field)); |
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.WithRR(mrr); |
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} else { |
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return new IdentifierExpression(field.Name) |
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.WithRR(new MemberResolveResult(target.ResolveResult, field)); |
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.WithRR(mrr); |
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} |
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} |
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@ -315,7 +347,12 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -315,7 +347,12 @@ namespace ICSharpCode.Decompiler.CSharp
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} |
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return new CallBuilder(this, typeSystem, settings).Build(inst); |
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} |
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protected internal override TranslatedExpression VisitLdVirtDelegate(LdVirtDelegate inst, TranslationContext context) |
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{ |
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return new CallBuilder(this, typeSystem, settings).Build(inst); |
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} |
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protected internal override TranslatedExpression VisitNewArr(NewArr inst, TranslationContext context) |
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{ |
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var dimensions = inst.Indices.Count; |
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@ -511,7 +548,9 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -511,7 +548,9 @@ namespace ICSharpCode.Decompiler.CSharp
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protected internal override TranslatedExpression VisitLdTypeToken(LdTypeToken inst, TranslationContext context) |
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{ |
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return new MemberReferenceExpression(new TypeOfExpression(ConvertType(inst.Type)), "TypeHandle") |
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var typeofExpr = new TypeOfExpression(ConvertType(inst.Type)) |
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.WithRR(new TypeOfResolveResult(compilation.FindType(KnownTypeCode.Type), inst.Type)); |
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return new MemberReferenceExpression(typeofExpr, "TypeHandle") |
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.WithILInstruction(inst) |
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.WithRR(new TypeOfResolveResult(compilation.FindType(new TopLevelTypeName("System", "RuntimeTypeHandle")), inst.Type)); |
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} |
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@ -522,7 +561,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -522,7 +561,7 @@ namespace ICSharpCode.Decompiler.CSharp
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var argUType = NullableType.GetUnderlyingType(argument.Type); |
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if (argUType.GetStackType().GetSize() < inst.UnderlyingResultType.GetSize() |
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|| argUType.Kind == TypeKind.Enum && argUType.IsSmallIntegerType() |
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|| argUType.Kind == TypeKind.Enum && argUType.IsSmallIntegerType() |
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|| argUType.GetStackType() == StackType.I |
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|| argUType.IsKnownType(KnownTypeCode.Boolean) |
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|| argUType.IsKnownType(KnownTypeCode.Char)) |
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@ -576,7 +615,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -576,7 +615,7 @@ namespace ICSharpCode.Decompiler.CSharp
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// because the DirectionExpression might get removed by dereferencing instructions such as LdObj
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return new DirectionExpression(FieldDirection.Ref, expr.Expression) |
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.WithoutILInstruction() |
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.WithRR(new ByReferenceResolveResult(expr.ResolveResult, isOut: false)); |
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.WithRR(new ByReferenceResolveResult(expr.ResolveResult, ReferenceKind.Ref)); |
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} |
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protected internal override TranslatedExpression VisitStLoc(StLoc inst, TranslationContext context) |
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@ -585,7 +624,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -585,7 +624,7 @@ namespace ICSharpCode.Decompiler.CSharp
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if (inst.Variable.Kind == VariableKind.StackSlot && !loadedVariablesSet.Contains(inst.Variable)) { |
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// Stack slots in the ILAst have inaccurate types (e.g. System.Object for StackType.O)
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// so we should replace them with more accurate types where possible:
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if ((inst.Variable.IsSingleDefinition || IsOtherValueType(translatedValue.Type) || inst.Variable.StackType == StackType.Ref) |
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if (CanUseTypeForStackSlot(inst.Variable, translatedValue.Type) |
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&& inst.Variable.StackType == translatedValue.Type.GetStackType() |
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&& translatedValue.Type.Kind != TypeKind.Null) { |
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inst.Variable.Type = translatedValue.Type; |
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@ -605,10 +644,31 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -605,10 +644,31 @@ namespace ICSharpCode.Decompiler.CSharp
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return Assignment(lhs, translatedValue).WithILInstruction(inst); |
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} |
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bool CanUseTypeForStackSlot(ILVariable v, IType type) |
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{ |
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return v.IsSingleDefinition |
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|| IsOtherValueType(type) |
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|| v.StackType == StackType.Ref |
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|| AllStoresUseConsistentType(v.StoreInstructions, type); |
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} |
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bool IsOtherValueType(IType type) |
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{ |
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return type.IsReferenceType == false && type.GetStackType() == StackType.O; |
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} |
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bool AllStoresUseConsistentType(IReadOnlyList<IStoreInstruction> storeInstructions, IType expectedType) |
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{ |
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expectedType = expectedType.AcceptVisitor(NormalizeTypeVisitor.TypeErasure); |
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foreach (var store in storeInstructions) { |
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if (!(store is StLoc stloc)) |
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return false; |
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IType type = stloc.Value.InferType(compilation).AcceptVisitor(NormalizeTypeVisitor.TypeErasure); |
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if (!type.Equals(expectedType)) |
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return false; |
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} |
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return true; |
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} |
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} |
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protected internal override TranslatedExpression VisitComp(Comp inst, TranslationContext context) |
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@ -889,6 +949,13 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -889,6 +949,13 @@ namespace ICSharpCode.Decompiler.CSharp
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.WithILInstruction(inst); |
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} |
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protected internal override TranslatedExpression VisitThrow(Throw inst, TranslationContext context) |
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{ |
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return new ThrowExpression(Translate(inst.Argument)) |
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.WithILInstruction(inst) |
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.WithRR(new ThrowResolveResult()); |
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} |
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protected internal override TranslatedExpression VisitUserDefinedLogicOperator(UserDefinedLogicOperator inst, TranslationContext context) |
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{ |
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var left = Translate(inst.Left, inst.Method.Parameters[0].Type).ConvertTo(inst.Method.Parameters[0].Type, this); |
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@ -1018,7 +1085,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1018,7 +1085,7 @@ namespace ICSharpCode.Decompiler.CSharp
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// ref - ref => i
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return CallUnsafeIntrinsic("ByteOffset", new[] { left.Expression, right.Expression }, compilation.FindType(KnownTypeCode.IntPtr), inst); |
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} |
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if (inst.LeftInputType == StackType.Ref && inst.RightInputType == StackType.I |
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if (inst.LeftInputType == StackType.Ref && inst.RightInputType.IsIntegerType() |
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&& left.Type is ByReferenceType brt) { |
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// ref [+-] int
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string name = (inst.Operator == BinaryNumericOperator.Sub ? "Subtract" : "Add"); |
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@ -1035,7 +1102,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1035,7 +1102,7 @@ namespace ICSharpCode.Decompiler.CSharp
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.WithILInstruction(inst) |
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.WithRR(new ResolveResult(elementType)); |
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return new DirectionExpression(FieldDirection.Ref, expr) |
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.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, isOut: false)); |
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.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, ReferenceKind.Ref)); |
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} |
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return CallUnsafeIntrinsic(name, new[] { left.Expression, Translate(offsetInst).Expression }, brt, inst); |
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} else { |
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@ -1226,8 +1293,9 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1226,8 +1293,9 @@ namespace ICSharpCode.Decompiler.CSharp
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var resultExpr = new BinaryOperatorExpression(left.Expression, op, right.Expression) |
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.WithILInstruction(inst) |
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.WithRR(rr); |
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if (BinaryOperatorMightCheckForOverflow(op)) |
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if (BinaryOperatorMightCheckForOverflow(op) && !inst.UnderlyingResultType.IsFloatType()) { |
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resultExpr.Expression.AddAnnotation(inst.CheckForOverflow ? AddCheckedBlocks.CheckedAnnotation : AddCheckedBlocks.UncheckedAnnotation); |
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} |
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return resultExpr; |
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} |
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@ -1326,7 +1394,13 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1326,7 +1394,13 @@ namespace ICSharpCode.Decompiler.CSharp
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protected internal override TranslatedExpression VisitUserDefinedCompoundAssign(UserDefinedCompoundAssign inst, TranslationContext context) |
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{ |
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var target = Translate(inst.Target); |
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IType loadType = inst.Method.Parameters[0].Type; |
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ExpressionWithResolveResult target; |
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if (inst.TargetKind == CompoundTargetKind.Address) { |
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target = LdObj(inst.Target, loadType); |
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} else { |
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target = Translate(inst.Target, loadType); |
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} |
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if (UserDefinedCompoundAssign.IsStringConcat(inst.Method)) { |
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Debug.Assert(inst.Method.Parameters.Count == 2); |
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var value = Translate(inst.Value).ConvertTo(inst.Method.Parameters[1].Type, this, allowImplicitConversion: true); |
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@ -1342,7 +1416,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1342,7 +1416,7 @@ namespace ICSharpCode.Decompiler.CSharp
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.WithILInstruction(inst) |
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.WithRR(new OperatorResolveResult(inst.Method.ReturnType, AssignmentExpression.GetLinqNodeType(op.Value, false), inst.Method, inst.IsLifted, new[] { target.ResolveResult, value.ResolveResult })); |
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} else { |
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UnaryOperatorType? op = GetUnaryOperatorTypeFromMetadataName(inst.Method.Name, inst.CompoundAssignmentType == CompoundAssignmentType.EvaluatesToOldValue); |
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UnaryOperatorType? op = GetUnaryOperatorTypeFromMetadataName(inst.Method.Name, inst.EvalMode == CompoundEvalMode.EvaluatesToOldValue); |
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Debug.Assert(op != null); |
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return new UnaryOperatorExpression(op.Value, target) |
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@ -1421,10 +1495,15 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1421,10 +1495,15 @@ namespace ICSharpCode.Decompiler.CSharp
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TranslatedExpression HandleCompoundAssignment(NumericCompoundAssign inst, AssignmentOperatorType op) |
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{ |
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var target = Translate(inst.Target); |
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ExpressionWithResolveResult target; |
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if (inst.TargetKind == CompoundTargetKind.Address) { |
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target = LdObj(inst.Target, inst.Type); |
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} else { |
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target = Translate(inst.Target, inst.Type); |
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} |
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TranslatedExpression resultExpr; |
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if (inst.CompoundAssignmentType == CompoundAssignmentType.EvaluatesToOldValue) { |
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if (inst.EvalMode == CompoundEvalMode.EvaluatesToOldValue) { |
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Debug.Assert(op == AssignmentOperatorType.Add || op == AssignmentOperatorType.Subtract); |
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Debug.Assert(inst.Value.MatchLdcI(1)); |
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UnaryOperatorType unary; |
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@ -1449,7 +1528,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1449,7 +1528,7 @@ namespace ICSharpCode.Decompiler.CSharp
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var pao = GetPointerArithmeticOffset(inst.Value, value, ((PointerType)target.Type).ElementType, inst.CheckForOverflow); |
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if (pao != null) { |
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value = pao.Value; |
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} else { |
|
|
|
|
} else { |
|
|
|
|
value.Expression.AddChild(new Comment("ILSpy Error: GetPointerArithmeticOffset() failed", CommentType.MultiLine), Roles.Comment); |
|
|
|
|
} |
|
|
|
|
} else { |
|
|
|
|
@ -1478,15 +1557,21 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1478,15 +1557,21 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
.WithILInstruction(inst) |
|
|
|
|
.WithRR(new OperatorResolveResult(target.Type, AssignmentExpression.GetLinqNodeType(op, inst.CheckForOverflow), target.ResolveResult, value.ResolveResult)); |
|
|
|
|
} |
|
|
|
|
if (AssignmentOperatorMightCheckForOverflow(op)) |
|
|
|
|
if (AssignmentOperatorMightCheckForOverflow(op) && !inst.UnderlyingResultType.IsFloatType()) { |
|
|
|
|
resultExpr.Expression.AddAnnotation(inst.CheckForOverflow ? AddCheckedBlocks.CheckedAnnotation : AddCheckedBlocks.UncheckedAnnotation); |
|
|
|
|
} |
|
|
|
|
return resultExpr; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
TranslatedExpression HandleCompoundShift(NumericCompoundAssign inst, AssignmentOperatorType op) |
|
|
|
|
{ |
|
|
|
|
Debug.Assert(inst.CompoundAssignmentType == CompoundAssignmentType.EvaluatesToNewValue); |
|
|
|
|
var target = Translate(inst.Target); |
|
|
|
|
Debug.Assert(inst.EvalMode == CompoundEvalMode.EvaluatesToNewValue); |
|
|
|
|
ExpressionWithResolveResult target; |
|
|
|
|
if (inst.TargetKind == CompoundTargetKind.Address) { |
|
|
|
|
target = LdObj(inst.Target, inst.Type); |
|
|
|
|
} else { |
|
|
|
|
target = Translate(inst.Target, inst.Type); |
|
|
|
|
} |
|
|
|
|
var value = Translate(inst.Value); |
|
|
|
|
|
|
|
|
|
// Shift operators in C# always expect type 'int' on the right-hand-side
|
|
|
|
|
@ -1641,6 +1726,10 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1641,6 +1726,10 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
} else if (inst.TargetType == IL.PrimitiveType.Ref) { |
|
|
|
|
// converting to unknown ref-type
|
|
|
|
|
targetType = new ByReferenceType(compilation.FindType(KnownTypeCode.Byte)); |
|
|
|
|
} else if (inst.TargetType == IL.PrimitiveType.None) { |
|
|
|
|
// convert to some object type
|
|
|
|
|
// (e.g. invalid I4->O conversion)
|
|
|
|
|
targetType = compilation.FindType(KnownTypeCode.Object); |
|
|
|
|
} else { |
|
|
|
|
targetType = GetType(inst.TargetType.ToKnownTypeCode()); |
|
|
|
|
} |
|
|
|
|
@ -1691,7 +1780,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1691,7 +1780,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
if (type.Kind == TypeKind.ByReference) { |
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, expr.Expression) |
|
|
|
|
.WithoutILInstruction() |
|
|
|
|
.WithRR(new ByReferenceResolveResult(expr.ResolveResult, isOut: false)); |
|
|
|
|
.WithRR(new ByReferenceResolveResult(expr.ResolveResult, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
return expr; |
|
|
|
|
} |
|
|
|
|
@ -1823,22 +1912,28 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1823,22 +1912,28 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
return SpecialType.UnknownType; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
IEnumerable<ParameterDeclaration> MakeParameters(IReadOnlyList<IParameter> parameters, ILFunction function) |
|
|
|
|
internal IEnumerable<ParameterDeclaration> MakeParameters(IReadOnlyList<IParameter> parameters, ILFunction function) |
|
|
|
|
{ |
|
|
|
|
var variables = function.Variables.Where(v => v.Kind == VariableKind.Parameter).ToDictionary(v => v.Index); |
|
|
|
|
int i = 0; |
|
|
|
|
foreach (var parameter in parameters) { |
|
|
|
|
var pd = astBuilder.ConvertParameter(parameter); |
|
|
|
|
if (string.IsNullOrEmpty(pd.Name) && !pd.Type.IsArgList()) { |
|
|
|
|
// needs to be consistent with logic in ILReader.CreateILVarable(ParameterDefinition)
|
|
|
|
|
pd.Name = "P_" + i; |
|
|
|
|
// if this is a local function, we have to skip the parameters for closure references
|
|
|
|
|
if (settings.LocalFunctions && function.Kind == ILFunctionKind.LocalFunction && IL.Transforms.LocalFunctionDecompiler.IsClosureParameter(parameter, decompilationContext)) |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
if (settings.AnonymousTypes && parameter.Type.ContainsAnonymousType()) |
|
|
|
|
pd.Type = null; |
|
|
|
|
ILVariable v; |
|
|
|
|
if (variables.TryGetValue(i, out v)) |
|
|
|
|
if (variables.TryGetValue(i, out var v)) |
|
|
|
|
pd.AddAnnotation(new ILVariableResolveResult(v, parameters[i].Type)); |
|
|
|
|
yield return pd; |
|
|
|
|
i++; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
internal TranslatedExpression TranslateTarget(ILInstruction target, bool nonVirtualInvocation, |
|
|
|
|
bool memberStatic, IType memberDeclaringType) |
|
|
|
|
{ |
|
|
|
|
@ -1861,7 +1956,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1861,7 +1956,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
if (translatedTarget.Expression is DirectionExpression) { |
|
|
|
|
// (ref x).member => x.member
|
|
|
|
|
translatedTarget = translatedTarget.UnwrapChild(((DirectionExpression)translatedTarget).Expression); |
|
|
|
|
} else if (translatedTarget.Expression is UnaryOperatorExpression uoe |
|
|
|
|
} else if (translatedTarget.Expression is UnaryOperatorExpression uoe |
|
|
|
|
&& uoe.Operator == UnaryOperatorType.NullConditional |
|
|
|
|
&& uoe.Expression is DirectionExpression) { |
|
|
|
|
// (ref x)?.member => x?.member
|
|
|
|
|
@ -1897,46 +1992,46 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1897,46 +1992,46 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
|
|
|
|
|
protected internal override TranslatedExpression VisitLdObj(LdObj inst, TranslationContext context) |
|
|
|
|
{ |
|
|
|
|
var target = Translate(inst.Target); |
|
|
|
|
if (TypeUtils.IsCompatiblePointerTypeForMemoryAccess(target.Type, inst.Type)) { |
|
|
|
|
TranslatedExpression result; |
|
|
|
|
var result = LdObj(inst.Target, inst.Type); |
|
|
|
|
//if (target.Type.IsSmallIntegerType() && loadType.IsSmallIntegerType() && target.Type.GetSign() != loadType.GetSign())
|
|
|
|
|
// return result.ConvertTo(loadType, this);
|
|
|
|
|
return result.WithILInstruction(inst); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
ExpressionWithResolveResult LdObj(ILInstruction address, IType loadType) |
|
|
|
|
{ |
|
|
|
|
var target = Translate(address); |
|
|
|
|
if (TypeUtils.IsCompatiblePointerTypeForMemoryAccess(target.Type, loadType)) { |
|
|
|
|
ExpressionWithResolveResult result; |
|
|
|
|
if (target.Expression is DirectionExpression dirExpr) { |
|
|
|
|
// we can dereference the managed reference by stripping away the 'ref'
|
|
|
|
|
result = target.UnwrapChild(dirExpr.Expression); |
|
|
|
|
result.Expression.AddAnnotation(inst); // add LdObj in addition to the existing ILInstruction annotation
|
|
|
|
|
} else if (target.Type is PointerType pointerType) { |
|
|
|
|
if (target.Expression is UnaryOperatorExpression uoe && uoe.Operator == UnaryOperatorType.AddressOf) { |
|
|
|
|
// We can dereference the pointer by stripping away the '&'
|
|
|
|
|
result = target.UnwrapChild(uoe.Expression); |
|
|
|
|
result.Expression.AddAnnotation(inst); // add LdObj in addition to the existing ILInstruction annotation
|
|
|
|
|
} else { |
|
|
|
|
// Dereference the existing pointer
|
|
|
|
|
result = new UnaryOperatorExpression(UnaryOperatorType.Dereference, target.Expression) |
|
|
|
|
.WithILInstruction(inst) |
|
|
|
|
.WithRR(new ResolveResult(pointerType.ElementType)); |
|
|
|
|
} |
|
|
|
|
} else { |
|
|
|
|
// reference type behind non-DirectionExpression?
|
|
|
|
|
// this case should be impossible, but we can use a pointer cast
|
|
|
|
|
// just to make sure
|
|
|
|
|
target = target.ConvertTo(new PointerType(inst.Type), this); |
|
|
|
|
target = target.ConvertTo(new PointerType(loadType), this); |
|
|
|
|
return new UnaryOperatorExpression(UnaryOperatorType.Dereference, target.Expression) |
|
|
|
|
.WithILInstruction(inst) |
|
|
|
|
.WithRR(new ResolveResult(inst.Type)); |
|
|
|
|
.WithRR(new ResolveResult(loadType)); |
|
|
|
|
} |
|
|
|
|
// we don't convert result to inst.Type, because the LdObj type
|
|
|
|
|
// might be inaccurate (it's often System.Object for all reference types),
|
|
|
|
|
// and our parent node should already insert casts where necessary
|
|
|
|
|
|
|
|
|
|
if (target.Type.IsSmallIntegerType() && inst.Type.IsSmallIntegerType() && target.Type.GetSign() != inst.Type.GetSign()) |
|
|
|
|
return result.ConvertTo(inst.Type, this); |
|
|
|
|
return result; |
|
|
|
|
} else { |
|
|
|
|
// We need to cast the pointer type:
|
|
|
|
|
target = target.ConvertTo(new PointerType(inst.Type), this); |
|
|
|
|
target = target.ConvertTo(new PointerType(loadType), this); |
|
|
|
|
return new UnaryOperatorExpression(UnaryOperatorType.Dereference, target.Expression) |
|
|
|
|
.WithILInstruction(inst) |
|
|
|
|
.WithRR(new ResolveResult(inst.Type)); |
|
|
|
|
.WithRR(new ResolveResult(loadType)); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@ -1975,7 +2070,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -1975,7 +2070,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
|
|
|
|
|
protected internal override TranslatedExpression VisitLdLen(LdLen inst, TranslationContext context) |
|
|
|
|
{ |
|
|
|
|
TranslatedExpression arrayExpr = Translate(inst.Array); |
|
|
|
|
TranslatedExpression arrayExpr = Translate(inst.Array, typeHint: compilation.FindType(KnownTypeCode.Array)); |
|
|
|
|
if (arrayExpr.Type.Kind != TypeKind.Array) { |
|
|
|
|
arrayExpr = arrayExpr.ConvertTo(compilation.FindType(KnownTypeCode.Array), this); |
|
|
|
|
} |
|
|
|
|
@ -2015,14 +2110,16 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2015,14 +2110,16 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
nonVirtualInvocation: true, |
|
|
|
|
memberStatic: false, |
|
|
|
|
memberDeclaringType: underlyingTupleType); |
|
|
|
|
if (translatedTarget.Type is TupleType tupleType && tupleType.UnderlyingType.Equals(underlyingTupleType) && position <= tupleType.ElementNames.Length) { |
|
|
|
|
if (translatedTarget.Type is TupleType tupleType && NormalizeTypeVisitor.TypeErasure.EquivalentTypes(tupleType, underlyingTupleType) && position <= tupleType.ElementNames.Length) { |
|
|
|
|
string elementName = tupleType.ElementNames[position - 1]; |
|
|
|
|
if (elementName == null) { |
|
|
|
|
elementName = "Item" + position; |
|
|
|
|
} |
|
|
|
|
// tupleType.ElementTypes are more accurate w.r.t. nullability/dynamic than inst.Field.Type
|
|
|
|
|
var rr = new MemberResolveResult(translatedTarget.ResolveResult, inst.Field, |
|
|
|
|
returnTypeOverride: tupleType.ElementTypes[position - 1]); |
|
|
|
|
expr = new MemberReferenceExpression(translatedTarget, elementName) |
|
|
|
|
.WithRR(new MemberResolveResult(translatedTarget.ResolveResult, inst.Field)) |
|
|
|
|
.WithILInstruction(inst); |
|
|
|
|
.WithRR(rr).WithILInstruction(inst); |
|
|
|
|
} else { |
|
|
|
|
expr = ConvertField(inst.Field, inst.Target).WithILInstruction(inst); |
|
|
|
|
} |
|
|
|
|
@ -2036,7 +2133,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2036,7 +2133,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
} else { |
|
|
|
|
// ldflda producing managed pointer
|
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, expr) |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.ResolveResult, isOut: false)); |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.ResolveResult, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
@ -2044,7 +2141,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2044,7 +2141,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
{ |
|
|
|
|
var expr = ConvertField(inst.Field).WithILInstruction(inst); |
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, expr) |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, isOut: false)); |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected internal override TranslatedExpression VisitLdElema(LdElema inst, TranslationContext context) |
|
|
|
|
@ -2052,14 +2149,14 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2052,14 +2149,14 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
TranslatedExpression arrayExpr = Translate(inst.Array); |
|
|
|
|
var arrayType = arrayExpr.Type as ArrayType; |
|
|
|
|
if (arrayType == null || !TypeUtils.IsCompatibleTypeForMemoryAccess(arrayType.ElementType, inst.Type)) { |
|
|
|
|
arrayType = new ArrayType(compilation, inst.Type, inst.Indices.Count); |
|
|
|
|
arrayType = new ArrayType(compilation, inst.Type, inst.Indices.Count); |
|
|
|
|
arrayExpr = arrayExpr.ConvertTo(arrayType, this); |
|
|
|
|
} |
|
|
|
|
TranslatedExpression expr = new IndexerExpression( |
|
|
|
|
arrayExpr, inst.Indices.Select(i => TranslateArrayIndex(i).Expression) |
|
|
|
|
).WithILInstruction(inst).WithRR(new ResolveResult(arrayType.ElementType)); |
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, expr) |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, isOut: false)); |
|
|
|
|
.WithoutILInstruction().WithRR(new ByReferenceResolveResult(expr.Type, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
TranslatedExpression TranslateArrayIndex(ILInstruction i) |
|
|
|
|
@ -2099,8 +2196,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2099,8 +2196,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
// try via its effective base class.
|
|
|
|
|
arg = arg.ConvertTo(((ITypeParameter)targetType).EffectiveBaseClass, this); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
} else { |
|
|
|
|
// Before unboxing arg must be a object
|
|
|
|
|
arg = arg.ConvertTo(compilation.FindType(KnownTypeCode.Object), this); |
|
|
|
|
} |
|
|
|
|
@ -2117,7 +2213,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2117,7 +2213,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
.WithRR(new ConversionResolveResult(inst.Type, arg.ResolveResult, Conversion.UnboxingConversion)); |
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, castExpression) |
|
|
|
|
.WithILInstruction(inst) |
|
|
|
|
.WithRR(new ByReferenceResolveResult(castExpression.ResolveResult, isOut: false)); |
|
|
|
|
.WithRR(new ByReferenceResolveResult(castExpression.ResolveResult, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected internal override TranslatedExpression VisitBox(Box inst, TranslationContext context) |
|
|
|
|
@ -2177,7 +2273,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2177,7 +2273,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
Arguments = { Translate(inst.Argument).Expression, new TypeReferenceExpression(ConvertType(inst.Type)) } |
|
|
|
|
}.WithRR(new ResolveResult(inst.Type)); |
|
|
|
|
return new DirectionExpression(FieldDirection.Ref, expr.WithILInstruction(inst)).WithoutILInstruction() |
|
|
|
|
.WithRR(new ByReferenceResolveResult(inst.Type, false)); |
|
|
|
|
.WithRR(new ByReferenceResolveResult(inst.Type, ReferenceKind.Ref)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
protected internal override TranslatedExpression VisitBlock(Block block, TranslationContext context) |
|
|
|
|
@ -2190,8 +2286,6 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2190,8 +2286,6 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
case BlockKind.CollectionInitializer: |
|
|
|
|
case BlockKind.ObjectInitializer: |
|
|
|
|
return TranslateObjectAndCollectionInitializer(block); |
|
|
|
|
case BlockKind.PostfixOperator: |
|
|
|
|
return TranslatePostfixOperator(block); |
|
|
|
|
case BlockKind.CallInlineAssign: |
|
|
|
|
return TranslateSetterCallAssignment(block); |
|
|
|
|
case BlockKind.CallWithNamedArgs: |
|
|
|
|
@ -2341,7 +2435,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2341,7 +2435,7 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
TranslatedExpression MakeInitializerAssignment(InitializedObjectResolveResult rr, IL.Transforms.AccessPathElement memberPath, |
|
|
|
|
IL.Transforms.AccessPathElement valuePath, List<TranslatedExpression> values, |
|
|
|
|
IL.Transforms.AccessPathElement valuePath, List<TranslatedExpression> values, |
|
|
|
|
Dictionary<ILVariable, ILInstruction> indexVariables) |
|
|
|
|
{ |
|
|
|
|
TranslatedExpression value; |
|
|
|
|
@ -2526,19 +2620,6 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2526,19 +2620,6 @@ namespace ICSharpCode.Decompiler.CSharp
|
|
|
|
|
.WithRR(new ResolveResult(stloc.Variable.Type)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
TranslatedExpression TranslatePostfixOperator(Block block) |
|
|
|
|
{ |
|
|
|
|
var targetInst = (block.Instructions.ElementAtOrDefault(0) as StLoc)?.Value; |
|
|
|
|
var inst = (block.Instructions.ElementAtOrDefault(1) as StLoc)?.Value as BinaryNumericInstruction; |
|
|
|
|
if (targetInst == null || inst == null || (inst.Operator != BinaryNumericOperator.Add && inst.Operator != BinaryNumericOperator.Sub)) |
|
|
|
|
throw new ArgumentException("given Block is invalid!"); |
|
|
|
|
var op = inst.Operator == BinaryNumericOperator.Add ? UnaryOperatorType.PostIncrement : UnaryOperatorType.PostDecrement; |
|
|
|
|
var target = Translate(targetInst); |
|
|
|
|
return new UnaryOperatorExpression(op, target) |
|
|
|
|
.WithILInstruction(block) |
|
|
|
|
.WithRR(resolver.WithCheckForOverflow(inst.CheckForOverflow).ResolveUnaryOperator(op, target.ResolveResult)); |
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} |
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/// <summary>
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/// If expr is a constant integer expression, and its value fits into type,
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/// convert the expression into the target type.
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@ -2587,7 +2668,9 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2587,7 +2668,9 @@ namespace ICSharpCode.Decompiler.CSharp
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var rr = resolver.ResolveBinaryOperator(BinaryOperatorType.NullCoalescing, value.ResolveResult, fallback.ResolveResult); |
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if (rr.IsError) { |
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IType targetType; |
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if (!value.Type.Equals(SpecialType.NullType) && !fallback.Type.Equals(SpecialType.NullType) && !value.Type.Equals(fallback.Type)) { |
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if (fallback.Expression is ThrowExpression && fallback.Type.Equals(SpecialType.NoType)) { |
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targetType = NullableType.GetUnderlyingType(value.Type); |
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} else if (!value.Type.Equals(SpecialType.NullType) && !fallback.Type.Equals(SpecialType.NullType) && !value.Type.Equals(fallback.Type)) { |
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targetType = compilation.FindType(inst.UnderlyingResultType.ToKnownTypeCode()); |
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} else { |
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targetType = value.Type.Equals(SpecialType.NullType) ? fallback.Type : value.Type; |
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@ -2676,7 +2759,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2676,7 +2759,7 @@ namespace ICSharpCode.Decompiler.CSharp
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new ConditionalExpression(condition.Expression, trueBranch.Expression, falseBranch.Expression) |
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.WithILInstruction(inst) |
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.WithRR(conditionalResolveResult) |
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).WithoutILInstruction().WithRR(new ByReferenceResolveResult(conditionalResolveResult, isOut: false)); |
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).WithoutILInstruction().WithRR(new ByReferenceResolveResult(conditionalResolveResult, ReferenceKind.Ref)); |
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} else { |
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return new ConditionalExpression(condition.Expression, trueBranch.Expression, falseBranch.Expression) |
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.WithILInstruction(inst) |
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@ -2696,7 +2779,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2696,7 +2779,7 @@ namespace ICSharpCode.Decompiler.CSharp
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var value = Translate(inst.Value, targetTypeHint); |
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return new DirectionExpression(FieldDirection.Ref, value) |
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.WithILInstruction(inst) |
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.WithRR(new ByReferenceResolveResult(value.ResolveResult, false)); |
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.WithRR(new ByReferenceResolveResult(value.ResolveResult, ReferenceKind.Ref)); |
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} |
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protected internal override TranslatedExpression VisitAwait(Await inst, TranslationContext context) |
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@ -2808,7 +2891,6 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2808,7 +2891,6 @@ namespace ICSharpCode.Decompiler.CSharp
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{ |
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Debug.Assert(!argumentInfo.HasFlag(CSharpArgumentInfoFlags.NamedArgument)); |
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Debug.Assert(!argumentInfo.HasFlag(CSharpArgumentInfoFlags.IsOut)); |
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Debug.Assert(!argumentInfo.HasFlag(CSharpArgumentInfoFlags.Constant)); |
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if (argumentInfo.HasFlag(CSharpArgumentInfoFlags.IsStaticType) && IL.Transforms.TransformExpressionTrees.MatchGetTypeFromHandle(inst, out var callTargetType)) { |
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return new TypeReferenceExpression(ConvertType(callTargetType)) |
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@ -2851,7 +2933,7 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2851,7 +2933,7 @@ namespace ICSharpCode.Decompiler.CSharp
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translatedExpression = translatedExpression.ConvertTo(typeHint, this); |
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} |
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if (info.HasFlag(CSharpArgumentInfoFlags.IsOut)) { |
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translatedExpression = ChangeDirectionExpressionToOut(translatedExpression); |
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translatedExpression = ChangeDirectionExpressionTo(translatedExpression, ReferenceKind.Out); |
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} |
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if (info.HasFlag(CSharpArgumentInfoFlags.NamedArgument) && !string.IsNullOrWhiteSpace(info.Name)) { |
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translatedExpression = new TranslatedExpression(new NamedArgumentExpression(info.Name, translatedExpression.Expression)); |
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@ -2860,16 +2942,16 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -2860,16 +2942,16 @@ namespace ICSharpCode.Decompiler.CSharp
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return translatedExpression; |
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} |
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internal static TranslatedExpression ChangeDirectionExpressionToOut(TranslatedExpression input) |
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internal static TranslatedExpression ChangeDirectionExpressionTo(TranslatedExpression input, ReferenceKind kind) |
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{ |
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if (!(input.Expression is DirectionExpression dirExpr && input.ResolveResult is ByReferenceResolveResult brrr)) |
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return input; |
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dirExpr.FieldDirection = FieldDirection.Out; |
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dirExpr.FieldDirection = (FieldDirection)kind; |
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dirExpr.RemoveAnnotations<ByReferenceResolveResult>(); |
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if (brrr.ElementResult == null) |
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brrr = new ByReferenceResolveResult(brrr.ElementType, isOut: true); |
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brrr = new ByReferenceResolveResult(brrr.ElementType, kind); |
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else |
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brrr = new ByReferenceResolveResult(brrr.ElementResult, isOut: true); |
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brrr = new ByReferenceResolveResult(brrr.ElementResult, kind); |
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dirExpr.AddAnnotation(brrr); |
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return new TranslatedExpression(dirExpr); |
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} |
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@ -3035,7 +3117,12 @@ namespace ICSharpCode.Decompiler.CSharp
@@ -3035,7 +3117,12 @@ namespace ICSharpCode.Decompiler.CSharp
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protected internal override TranslatedExpression VisitDynamicCompoundAssign(DynamicCompoundAssign inst, TranslationContext context) |
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{ |
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var target = TranslateDynamicArgument(inst.Target, inst.TargetArgumentInfo); |
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ExpressionWithResolveResult target; |
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if (inst.TargetKind == CompoundTargetKind.Address) { |
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target = LdObj(inst.Target, SpecialType.Dynamic); |
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} else { |
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target = TranslateDynamicArgument(inst.Target, inst.TargetArgumentInfo); |
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} |
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var value = TranslateDynamicArgument(inst.Value, inst.ValueArgumentInfo); |
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var ae = new AssignmentExpression(target, AssignmentExpression.GetAssignmentOperatorTypeFromExpressionType(inst.Operation).Value, value); |
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Siegfried Pammer
7 years ago