.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
using System;
using System.Collections.Generic;
using System.Linq;
using ICSharpCode.NRefactory.PatternMatching;
using ICSharpCode.NRefactory.TypeSystem;
using ICSharpCode.NRefactory.VB.Ast;
namespace ICSharpCode.NRefactory.VB.Visitors
{
public interface IEnvironmentProvider
{
string RootNamespace { get; }
string GetTypeNameForAttribute(CSharp.Attribute attribute);
TypeKind GetTypeKindForAstType(CSharp.AstType type);
TypeCode ResolveExpression(CSharp.Expression expression);
bool? IsReferenceType(CSharp.Expression expression);
//ITypeResolveContext ResolveContext { get; }
IType ResolveType(AstType type, TypeDeclaration entity = null);
}
/// <summary>
/// Description of CSharpToVBConverterVisitor.
/// </summary>
public class CSharpToVBConverterVisitor : CSharp.IAstVisitor<object, VB.AstNode>
{
IEnvironmentProvider provider;
Stack<BlockStatement> blocks;
Stack<TypeDeclaration> types;
Stack<MemberInfo> members;
class MemberInfo
{
public bool inIterator;
}
public CSharpToVBConverterVisitor(IEnvironmentProvider provider)
{
this.provider = provider;
this.blocks = new Stack<BlockStatement>();
this.types = new Stack<TypeDeclaration>();
this.members = new Stack<MemberInfo>();
}
public AstNode VisitAnonymousMethodExpression(CSharp.AnonymousMethodExpression anonymousMethodExpression, object data)
{
members.Push(new MemberInfo());
var expr = new MultiLineLambdaExpression() {
IsSub = true,
Body = (BlockStatement)anonymousMethodExpression.Body.AcceptVisitor(this, data)
};
ConvertNodes(anonymousMethodExpression.Parameters, expr.Parameters);
if (members.Pop().inIterator) {
expr.Modifiers |= LambdaExpressionModifiers.Iterator;
}
return EndNode(anonymousMethodExpression, expr);
}
public AstNode VisitUndocumentedExpression(CSharp.UndocumentedExpression undocumentedExpression, object data)
{
var invocation = new InvocationExpression();
switch (undocumentedExpression.UndocumentedExpressionType) {
case CSharp.UndocumentedExpressionType.ArgListAccess:
case CSharp.UndocumentedExpressionType.ArgList:
invocation.Target = new IdentifierExpression { Identifier = "__ArgList" };
break;
case CSharp.UndocumentedExpressionType.RefValue:
invocation.Target = new IdentifierExpression { Identifier = "__RefValue" };
break;
case CSharp.UndocumentedExpressionType.RefType:
invocation.Target = new IdentifierExpression { Identifier = "__RefType" };
break;
case CSharp.UndocumentedExpressionType.MakeRef:
invocation.Target = new IdentifierExpression { Identifier = "__MakeRef" };
break;
default:
throw new Exception("Invalid value for UndocumentedExpressionType");
}
ConvertNodes(undocumentedExpression.Arguments, invocation.Arguments);
return EndNode(undocumentedExpression, invocation);
}
public AstNode VisitArrayCreateExpression(CSharp.ArrayCreateExpression arrayCreateExpression, object data)
{
var expr = new ArrayCreateExpression() {
Type = (AstType)arrayCreateExpression.Type.AcceptVisitor(this, data),
Initializer = (ArrayInitializerExpression)arrayCreateExpression.Initializer.AcceptVisitor(this, data)
};
ConvertNodes(arrayCreateExpression.Arguments, expr.Arguments);
ConvertNodes(arrayCreateExpression.AdditionalArraySpecifiers, expr.AdditionalArraySpecifiers);
return EndNode(arrayCreateExpression, expr);
}
public AstNode VisitArrayInitializerExpression(CSharp.ArrayInitializerExpression arrayInitializerExpression, object data)
{
var expr = new ArrayInitializerExpression();
ConvertNodes(arrayInitializerExpression.Elements, expr.Elements);
return EndNode(arrayInitializerExpression, expr);
}
public AstNode VisitAsExpression(CSharp.AsExpression asExpression, object data)
{
return EndNode(asExpression, new CastExpression(CastType.TryCast, (AstType)asExpression.Type.AcceptVisitor(this, data), (Expression)asExpression.Expression.AcceptVisitor(this, data)));
}
public AstNode VisitAssignmentExpression(CSharp.AssignmentExpression assignmentExpression, object data)
{
var left = (Expression)assignmentExpression.Left.AcceptVisitor(this, data);
var op = AssignmentOperatorType.None;
var right = (Expression)assignmentExpression.Right.AcceptVisitor(this, data);
switch (assignmentExpression.Operator) {
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Assign:
op = AssignmentOperatorType.Assign;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Add:
op = AssignmentOperatorType.Add;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Subtract:
op = AssignmentOperatorType.Subtract;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Multiply:
op = AssignmentOperatorType.Multiply;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Divide:
op = AssignmentOperatorType.Divide;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.Modulus:
op = AssignmentOperatorType.Assign;
right = new BinaryOperatorExpression((Expression)left.Clone(), BinaryOperatorType.Modulus, right);
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.ShiftLeft:
op = AssignmentOperatorType.ShiftLeft;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.ShiftRight:
op = AssignmentOperatorType.ShiftRight;
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.BitwiseAnd:
op = AssignmentOperatorType.Assign;
right = new BinaryOperatorExpression((Expression)left.Clone(), BinaryOperatorType.BitwiseAnd, right);
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.BitwiseOr:
op = AssignmentOperatorType.Assign;
right = new BinaryOperatorExpression((Expression)left.Clone(), BinaryOperatorType.BitwiseOr, right);
break;
case ICSharpCode.NRefactory.CSharp.AssignmentOperatorType.ExclusiveOr:
op = AssignmentOperatorType.Assign;
right = new BinaryOperatorExpression((Expression)left.Clone(), BinaryOperatorType.ExclusiveOr, right);
break;
default:
throw new Exception("Invalid value for AssignmentOperatorType: " + assignmentExpression.Operator);
}
var expr = new AssignmentExpression(left, op, right);
return EndNode(assignmentExpression, expr);
}
public AstNode VisitBaseReferenceExpression(CSharp.BaseReferenceExpression baseReferenceExpression, object data)
{
InstanceExpression result = new InstanceExpression(InstanceExpressionType.MyBase, baseReferenceExpression.StartLocation);
return EndNode(baseReferenceExpression, result);
}
public AstNode VisitBinaryOperatorExpression(CSharp.BinaryOperatorExpression binaryOperatorExpression, object data)
{
var left = (Expression)binaryOperatorExpression.Left.AcceptVisitor(this, data);
var op = BinaryOperatorType.None;
var right = (Expression)binaryOperatorExpression.Right.AcceptVisitor(this, data);
switch (binaryOperatorExpression.Operator) {
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.BitwiseAnd:
op = BinaryOperatorType.BitwiseAnd;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.BitwiseOr:
op = BinaryOperatorType.BitwiseOr;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.ConditionalAnd:
op = BinaryOperatorType.LogicalAnd;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.ConditionalOr:
op = BinaryOperatorType.LogicalOr;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.ExclusiveOr:
op = BinaryOperatorType.ExclusiveOr;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.GreaterThan:
op = BinaryOperatorType.GreaterThan;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.GreaterThanOrEqual:
op = BinaryOperatorType.GreaterThanOrEqual;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Equality:
if (IsReferentialEquality(binaryOperatorExpression))
op = BinaryOperatorType.ReferenceEquality;
else
op = BinaryOperatorType.Equality;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.InEquality:
if (IsReferentialEquality(binaryOperatorExpression))
op = BinaryOperatorType.ReferenceInequality;
else
op = BinaryOperatorType.InEquality;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.LessThan:
op = BinaryOperatorType.LessThan;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.LessThanOrEqual:
op = BinaryOperatorType.LessThanOrEqual;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Add:
// TODO might be string concatenation
op = BinaryOperatorType.Add;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Subtract:
op = BinaryOperatorType.Subtract;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Multiply:
op = BinaryOperatorType.Multiply;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Divide:
op = BinaryOperatorType.Divide;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.Modulus:
op = BinaryOperatorType.Modulus;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.ShiftLeft:
op = BinaryOperatorType.ShiftLeft;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.ShiftRight:
op = BinaryOperatorType.ShiftRight;
break;
case ICSharpCode.NRefactory.CSharp.BinaryOperatorType.NullCoalescing:
var nullCoalescing = new ConditionalExpression {
ConditionExpression = left,
FalseExpression = right
};
return EndNode(binaryOperatorExpression, nullCoalescing);
default:
throw new Exception("Invalid value for BinaryOperatorType: " + binaryOperatorExpression.Operator);
}
return EndNode(binaryOperatorExpression, new BinaryOperatorExpression(left, op, right));
}
bool IsReferentialEquality(CSharp.BinaryOperatorExpression binaryOperatorExpression)
{
var left = provider.IsReferenceType(binaryOperatorExpression.Left);
var right = provider.IsReferenceType(binaryOperatorExpression.Right);
var leftCode = provider.ResolveExpression(binaryOperatorExpression.Left);
var rightCode = provider.ResolveExpression(binaryOperatorExpression.Right);
return (left == true || right == true) && (leftCode != TypeCode.String && rightCode != TypeCode.String);
}
public AstNode VisitCastExpression(CSharp.CastExpression castExpression, object data)
{
var expr = new CastExpression();
expr.Type = (AstType)castExpression.Type.AcceptVisitor(this, data);
// TODO read additional type information from annotation
// (int)x is equivalent to CInt(Math.Truncate(x))
expr.CastType = GetCastType(expr.Type, null);
expr.Expression = (Expression)castExpression.Expression.AcceptVisitor(this, data);
if (expr.CastType != CastType.CType)
expr.Type = null;
return EndNode(castExpression, expr);
}
CastType GetCastType(AstType type, object typeInformation)
{
var primType = type as PrimitiveType;
if (primType == null)
return CastType.CType;
switch (primType.Keyword) {
case "Boolean":
return CastType.CBool;
case "Byte":
return CastType.CByte;
case "Char":
return CastType.CChar;
case "Date":
return CastType.CDate;
case "Double":
return CastType.CDbl;
case "Decimal":
return CastType.CDec;
case "Integer":
return CastType.CInt;
case "Long":
return CastType.CLng;
case "Object":
return CastType.CObj;
case "SByte":
return CastType.CSByte;
case "Short":
return CastType.CShort;
case "Single":
return CastType.CSng;
case "String":
return CastType.CStr;
case "UInteger":
return CastType.CUInt;
case "ULong":
return CastType.CULng;
case "UShort":
return CastType.CUShort;
}
return CastType.CType;
}
public AstNode VisitCheckedExpression(CSharp.CheckedExpression checkedExpression, object data)
{
blocks.Peek().AddChild(new Comment(" The following expression was wrapped in a checked-expression", false), AstNode.Roles.Comment);
return EndNode(checkedExpression, checkedExpression.Expression.AcceptVisitor(this, data));
}
public AstNode VisitConditionalExpression(CSharp.ConditionalExpression conditionalExpression, object data)
{
var cond = new ConditionalExpression() {
ConditionExpression = (Expression)conditionalExpression.Condition.AcceptVisitor(this, data),
TrueExpression = (Expression)conditionalExpression.TrueExpression.AcceptVisitor(this, data),
FalseExpression = (Expression)conditionalExpression.FalseExpression.AcceptVisitor(this, data)
};
return EndNode(conditionalExpression, cond);
}
public AstNode VisitDefaultValueExpression(CSharp.DefaultValueExpression defaultValueExpression, object data)
{
// Nothing is equivalent to default(T) for reference and value types.
return EndNode(defaultValueExpression, new PrimitiveExpression(null));
}
public AstNode VisitDirectionExpression(CSharp.DirectionExpression directionExpression, object data)
{
return EndNode(directionExpression, (Expression)directionExpression.Expression.AcceptVisitor(this, data));
}
public AstNode VisitIdentifierExpression(CSharp.IdentifierExpression identifierExpression, object data)
{
var expr = new IdentifierExpression();
expr.Identifier = new Identifier(identifierExpression.Identifier, TextLocation.Empty);
ConvertNodes(identifierExpression.TypeArguments, expr.TypeArguments);
return EndNode(identifierExpression, expr);
}
public AstNode VisitIndexerExpression(CSharp.IndexerExpression indexerExpression, object data)
{
var expr = new InvocationExpression((Expression)indexerExpression.Target.AcceptVisitor(this, data));
ConvertNodes(indexerExpression.Arguments, expr.Arguments);
return EndNode(indexerExpression, expr);
}
public AstNode VisitInvocationExpression(CSharp.InvocationExpression invocationExpression, object data)
{
var expr = new InvocationExpression(
(Expression)invocationExpression.Target.AcceptVisitor(this, data));
ConvertNodes(invocationExpression.Arguments, expr.Arguments);
return EndNode(invocationExpression, expr);
}
public AstNode VisitIsExpression(CSharp.IsExpression isExpression, object data)
{
var expr = new TypeOfIsExpression() {
Type = (AstType)isExpression.Type.AcceptVisitor(this, data),
TypeOfExpression = (Expression)isExpression.Expression.AcceptVisitor(this, data)
};
return EndNode(isExpression, expr);
}
public AstNode VisitLambdaExpression(CSharp.LambdaExpression lambdaExpression, object data)
{
LambdaExpression expr = null;
if (lambdaExpression.Body is CSharp.Expression) {
var singleLine = new SingleLineFunctionLambdaExpression() {
EmbeddedExpression = (Expression)lambdaExpression.Body.AcceptVisitor(this, data)
};
ConvertNodes(lambdaExpression.Parameters, singleLine.Parameters);
expr = singleLine;
} else
throw new NotImplementedException();
return EndNode(lambdaExpression, expr);
}
public AstNode VisitMemberReferenceExpression(CSharp.MemberReferenceExpression memberReferenceExpression, object data)
{
var memberAccessExpression = new MemberAccessExpression();
memberAccessExpression.Target = (Expression)memberReferenceExpression.Target.AcceptVisitor(this, data);
memberAccessExpression.MemberName = new Identifier(memberReferenceExpression.MemberName, TextLocation.Empty);
ConvertNodes(memberReferenceExpression.TypeArguments, memberAccessExpression.TypeArguments);
return EndNode(memberReferenceExpression, memberAccessExpression);
}
public AstNode VisitNamedArgumentExpression(CSharp.NamedArgumentExpression namedArgumentExpression, object data)
{
Expression expr = new NamedArgumentExpression {
Identifier = namedArgumentExpression.Identifier,
Expression = (Expression)namedArgumentExpression.Expression.AcceptVisitor(this, data)
};
return EndNode(namedArgumentExpression, expr);
}
public AstNode VisitNamedExpression(CSharp.NamedExpression namedExpression, object data)
{
Expression expr = new FieldInitializerExpression {
IsKey = true,
Identifier = namedExpression.Identifier,
Expression = (Expression)namedExpression.Expression.AcceptVisitor(this, data)
};
return EndNode(namedExpression, expr);
}
public AstNode VisitNullReferenceExpression(CSharp.NullReferenceExpression nullReferenceExpression, object data)
{
return EndNode(nullReferenceExpression, new PrimitiveExpression(null));
}
public AstNode VisitObjectCreateExpression(CSharp.ObjectCreateExpression objectCreateExpression, object data)
{
var expr = new ObjectCreationExpression((AstType)objectCreateExpression.Type.AcceptVisitor(this, data));
ConvertNodes(objectCreateExpression.Arguments, expr.Arguments);
if (!objectCreateExpression.Initializer.IsNull)
expr.Initializer = (ArrayInitializerExpression)objectCreateExpression.Initializer.AcceptVisitor(this, data);
return EndNode(objectCreateExpression, expr);
}
public AstNode VisitAnonymousTypeCreateExpression(CSharp.AnonymousTypeCreateExpression anonymousTypeCreateExpression, object data)
{
var expr = new AnonymousObjectCreationExpression();
ConvertNodes(anonymousTypeCreateExpression.Initializers, expr.Initializer);
return EndNode(anonymousTypeCreateExpression, expr);
}
public AstNode VisitParenthesizedExpression(CSharp.ParenthesizedExpression parenthesizedExpression, object data)
{
var result = new ParenthesizedExpression();
result.Expression = (Expression)parenthesizedExpression.Expression.AcceptVisitor(this, data);
return EndNode(parenthesizedExpression, result);
}
public AstNode VisitPointerReferenceExpression(CSharp.PointerReferenceExpression pointerReferenceExpression, object data)
{
return EndNode(pointerReferenceExpression,((Expression)pointerReferenceExpression.Target.AcceptVisitor(this, data)).Invoke("Dereference").Member(pointerReferenceExpression.MemberName));
}
public AstNode VisitPrimitiveExpression(CSharp.PrimitiveExpression primitiveExpression, object data)
{
Expression expr;
if (!string.IsNullOrEmpty(primitiveExpression.Value as string) || primitiveExpression.Value is char)
expr = ConvertToConcat(primitiveExpression.Value.ToString());
else
expr = new PrimitiveExpression(primitiveExpression.Value);
return EndNode(primitiveExpression, expr);
}
Expression ConvertToConcat(string literal)
{
Stack<Expression> parts = new Stack<Expression>();
int start = 0;
for (int i = 0; i < literal.Length; i++) {
string part;
switch (literal[i]) {
case '\0':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbNullChar"));
start = i + 1;
break;
case '\b':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbBack"));
start = i + 1;
break;
case '\f':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbFormFeed"));
start = i + 1;
break;
case '\r':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
if (i + 1 < literal.Length && literal[i + 1] == '\n') {
i++;
parts.Push(new IdentifierExpression("vbCrLf"));
} else
parts.Push(new IdentifierExpression("vbCr"));
start = i + 1;
break;
case '\n':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbLf"));
start = i + 1;
break;
case '\t':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbTab"));
start = i + 1;
break;
case '\v':
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new IdentifierExpression("vbVerticalTab"));
start = i + 1;
break;
default:
if ((int)literal[i] > 255) {
part = literal.Substring(start, i - start);
if (!string.IsNullOrEmpty(part))
parts.Push(new PrimitiveExpression(part));
parts.Push(new InvocationExpression(new IdentifierExpression("ChrW"), new PrimitiveExpression((int)literal[i])));
} else
continue;
start = i + 1;
break;
}
}
if (start < literal.Length) {
string part = literal.Substring(start);
parts.Push(new PrimitiveExpression(part));
}
Expression current = parts.Pop();
while (parts.Any())
current = new BinaryOperatorExpression(parts.Pop(), BinaryOperatorType.Concat, current);
return current;
}
public AstNode VisitSizeOfExpression(CSharp.SizeOfExpression sizeOfExpression, object data)
{
return EndNode(
sizeOfExpression,
new InvocationExpression(
new IdentifierExpression() { Identifier = "__SizeOf" },
new TypeReferenceExpression((AstType)sizeOfExpression.Type.AcceptVisitor(this, data))
)
);
}
public AstNode VisitStackAllocExpression(CSharp.StackAllocExpression stackAllocExpression, object data)
{
return EndNode(
stackAllocExpression,
new InvocationExpression(
new IdentifierExpression() { Identifier = "__StackĄlloc" },
new TypeReferenceExpression((AstType)stackAllocExpression.Type.AcceptVisitor(this, data)),
(Expression)stackAllocExpression.CountExpression.AcceptVisitor(this, data)
)
);
}
public AstNode VisitThisReferenceExpression(CSharp.ThisReferenceExpression thisReferenceExpression, object data)
{
InstanceExpression result = new InstanceExpression(InstanceExpressionType.Me, thisReferenceExpression.StartLocation);
return EndNode(thisReferenceExpression, result);
}
public AstNode VisitTypeOfExpression(CSharp.TypeOfExpression typeOfExpression, object data)
{
var expr = new GetTypeExpression();
expr.Type = (AstType)typeOfExpression.Type.AcceptVisitor(this, data);
return EndNode(typeOfExpression, expr);
}
public AstNode VisitTypeReferenceExpression(CSharp.TypeReferenceExpression typeReferenceExpression, object data)
{
var expr = new TypeReferenceExpression((AstType)typeReferenceExpression.Type.AcceptVisitor(this, data));
return EndNode(typeReferenceExpression, expr);
}
public AstNode VisitUnaryOperatorExpression(CSharp.UnaryOperatorExpression unaryOperatorExpression, object data)
{
Expression expr;
switch (unaryOperatorExpression.Operator) {
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Not:
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.BitNot:
expr = new UnaryOperatorExpression() {
Expression = (Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data),
Operator = UnaryOperatorType.Not
};
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Minus:
expr = new UnaryOperatorExpression() {
Expression = (Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data),
Operator = UnaryOperatorType.Minus
};
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Plus:
expr = new UnaryOperatorExpression() {
Expression = (Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data),
Operator = UnaryOperatorType.Plus
};
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Increment:
expr = new InvocationExpression();
((InvocationExpression)expr).Target = new IdentifierExpression() { Identifier = "__Increment" };
((InvocationExpression)expr).Arguments.Add((Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data));
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.PostIncrement:
expr = new InvocationExpression();
((InvocationExpression)expr).Target = new IdentifierExpression() { Identifier = "__PostIncrement" };
((InvocationExpression)expr).Arguments.Add((Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data));
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Decrement:
expr = new InvocationExpression();
((InvocationExpression)expr).Target = new IdentifierExpression() { Identifier = "__Decrement" };
((InvocationExpression)expr).Arguments.Add((Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data));
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.PostDecrement:
expr = new InvocationExpression();
((InvocationExpression)expr).Target = new IdentifierExpression() { Identifier = "__PostDecrement" };
((InvocationExpression)expr).Arguments.Add((Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data));
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.AddressOf:
expr = new UnaryOperatorExpression() {
Expression = (Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data),
Operator = UnaryOperatorType.AddressOf
};
break;
case ICSharpCode.NRefactory.CSharp.UnaryOperatorType.Dereference:
expr = new InvocationExpression();
((InvocationExpression)expr).Target = new IdentifierExpression() { Identifier = "__Dereference" };
((InvocationExpression)expr).Arguments.Add((Expression)unaryOperatorExpression.Expression.AcceptVisitor(this, data));
break;
default:
throw new Exception("Invalid value for UnaryOperatorType");
}
return EndNode(unaryOperatorExpression, expr);
}
public AstNode VisitUncheckedExpression(CSharp.UncheckedExpression uncheckedExpression, object data)
{
blocks.Peek().AddChild(new Comment(" The following expression was wrapped in a unchecked-expression", false), AstNode.Roles.Comment);
return EndNode(uncheckedExpression, uncheckedExpression.Expression.AcceptVisitor(this, data));
}
public AstNode VisitEmptyExpression(CSharp.EmptyExpression emptyExpression, object data)
{
return EndNode(emptyExpression, new EmptyExpression());
}
public AstNode VisitQueryExpression(CSharp.QueryExpression queryExpression, object data)
{
var expr = new QueryExpression();
ConvertNodes(queryExpression.Clauses, expr.QueryOperators);
return EndNode(queryExpression, expr);
}
public AstNode VisitQueryContinuationClause(CSharp.QueryContinuationClause queryContinuationClause, object data)
{
throw new NotImplementedException();
}
public AstNode VisitQueryFromClause(CSharp.QueryFromClause queryFromClause, object data)
{
var op = new FromQueryOperator();
op.Variables.Add(
new CollectionRangeVariableDeclaration {
Identifier = new VariableIdentifier { Name = queryFromClause.Identifier },
Type = (AstType)queryFromClause.Type.AcceptVisitor(this, data),
Expression = (Expression)queryFromClause.Expression.AcceptVisitor(this, data)
}
);
return EndNode(queryFromClause, op);
}
public AstNode VisitQueryLetClause(CSharp.QueryLetClause queryLetClause, object data)
{
throw new NotImplementedException();
}
public AstNode VisitQueryWhereClause(CSharp.QueryWhereClause queryWhereClause, object data)
{
throw new NotImplementedException();
}
public AstNode VisitQueryJoinClause(CSharp.QueryJoinClause queryJoinClause, object data)
{
throw new NotImplementedException();
}
public AstNode VisitQueryOrderClause(CSharp.QueryOrderClause queryOrderClause, object data)
{
var op = new OrderByQueryOperator();
ConvertNodes(queryOrderClause.Orderings, op.Expressions);
return EndNode(queryOrderClause, op);
}
public AstNode VisitQueryOrdering(CSharp.QueryOrdering queryOrdering, object data)
{
var expr = new OrderExpression();
expr.Direction = (QueryOrderingDirection)queryOrdering.Direction;
expr.Expression = (Expression)queryOrdering.Expression.AcceptVisitor(this, data);
return EndNode(queryOrdering, expr);
}
int selectVarCount = 0;
public AstNode VisitQuerySelectClause(CSharp.QuerySelectClause querySelectClause, object data)
{
var op = new SelectQueryOperator();
op.Variables.Add(
new VariableInitializer {
Identifier = new VariableIdentifier { Name = "SelectVar" + selectVarCount },
Expression = (Expression)querySelectClause.Expression.AcceptVisitor(this, data)
});
return EndNode(querySelectClause, op);
}
public AstNode VisitQueryGroupClause(CSharp.QueryGroupClause queryGroupClause, object data)
{
var op = new GroupByQueryOperator();
throw new NotImplementedException();
return EndNode(queryGroupClause, op);
}
public AstNode VisitAttribute(CSharp.Attribute attribute, object data)
{
var attr = new VB.Ast.Attribute();
AttributeTarget target;
Enum.TryParse(((CSharp.AttributeSection)attribute.Parent).AttributeTarget, true, out target);
attr.Target = target;
attr.Type = (AstType)attribute.Type.AcceptVisitor(this, data);
ConvertNodes(attribute.Arguments, attr.Arguments);
return EndNode(attribute, attr);
}
public AstNode VisitAttributeSection(CSharp.AttributeSection attributeSection, object data)
{
AttributeBlock block = new AttributeBlock();
ConvertNodes(attributeSection.Attributes, block.Attributes);
return EndNode(attributeSection, block);
}
public AstNode VisitDelegateDeclaration(CSharp.DelegateDeclaration delegateDeclaration, object data)
{
var result = new DelegateDeclaration();
ConvertNodes(delegateDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), result.Attributes);
ConvertNodes(delegateDeclaration.ModifierTokens, result.ModifierTokens);
result.Name = new Identifier(delegateDeclaration.Name, TextLocation.Empty);
result.IsSub = IsSub(delegateDeclaration.ReturnType);
ConvertNodes(delegateDeclaration.Parameters, result.Parameters);
ConvertNodes(delegateDeclaration.TypeParameters, result.TypeParameters);
ConvertNodes(delegateDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), result.ReturnTypeAttributes);
if (!result.IsSub)
result.ReturnType = (AstType)delegateDeclaration.ReturnType.AcceptVisitor(this, data);
return EndNode(delegateDeclaration, result);
}
public AstNode VisitNamespaceDeclaration(CSharp.NamespaceDeclaration namespaceDeclaration, object data)
{
var newNamespace = new NamespaceDeclaration();
ConvertNodes(namespaceDeclaration.Identifiers, newNamespace.Identifiers);
ConvertNodes(namespaceDeclaration.Members, newNamespace.Members);
return EndNode(namespaceDeclaration, newNamespace);
}
public AstNode VisitTypeDeclaration(CSharp.TypeDeclaration typeDeclaration, object data)
{
// TODO add missing features!
if (typeDeclaration.ClassType == CSharp.ClassType.Enum) {
var type = new EnumDeclaration();
CopyAnnotations(typeDeclaration, type);
ConvertNodes(typeDeclaration.Attributes, type.Attributes);
ConvertNodes(typeDeclaration.ModifierTokens, type.ModifierTokens);
if (typeDeclaration.BaseTypes.Any()) {
var first = typeDeclaration.BaseTypes.First();
type.UnderlyingType = (AstType)first.AcceptVisitor(this, data);
}
type.Name = new Identifier(typeDeclaration.Name, TextLocation.Empty);
ConvertNodes(typeDeclaration.Members, type.Members);
return EndNode(typeDeclaration, type);
} else {
var type = new TypeDeclaration();
CopyAnnotations(typeDeclaration, type);
CSharp.Attribute stdModAttr;
if (typeDeclaration.ClassType == CSharp.ClassType.Class && HasAttribute(typeDeclaration.Attributes, "Microsoft.VisualBasic.CompilerServices.StandardModuleAttribute", out stdModAttr)) {
type.ClassType = ClassType.Module;
// remove AttributeSection if only one attribute is present
var attrSec = (CSharp.AttributeSection)stdModAttr.Parent;
if (attrSec.Attributes.Count == 1)
attrSec.Remove();
else
stdModAttr.Remove();
} else {
switch (typeDeclaration.ClassType) {
case CSharp.ClassType.Class:
type.ClassType = ClassType.Class;
break;
case CSharp.ClassType.Struct:
type.ClassType = ClassType.Struct;
break;
case CSharp.ClassType.Interface:
type.ClassType = ClassType.Interface;
break;
default:
throw new InvalidOperationException("Invalid value for ClassType");
}
}
if ((typeDeclaration.Modifiers & CSharp.Modifiers.Static) == CSharp.Modifiers.Static) {
type.ClassType = ClassType.Module;
typeDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
}
ConvertNodes(typeDeclaration.Attributes, type.Attributes);
ConvertNodes(typeDeclaration.ModifierTokens, type.ModifierTokens);
if (typeDeclaration.BaseTypes.Any()) {
var first = typeDeclaration.BaseTypes.First();
if (provider.GetTypeKindForAstType(first) != TypeKind.Interface) {
ConvertNodes(typeDeclaration.BaseTypes.Skip(1), type.ImplementsTypes);
type.InheritsType = (AstType)first.AcceptVisitor(this, data);
} else
ConvertNodes(typeDeclaration.BaseTypes, type.ImplementsTypes);
}
type.Name = typeDeclaration.Name;
types.Push(type);
ConvertNodes(typeDeclaration.Members, type.Members);
types.Pop();
return EndNode(typeDeclaration, type);
}
}
public AstNode VisitUsingAliasDeclaration(CSharp.UsingAliasDeclaration usingAliasDeclaration, object data)
{
var imports = new ImportsStatement();
var clause = new AliasImportsClause() {
Name = new Identifier(usingAliasDeclaration.Alias, TextLocation.Empty),
Alias = (AstType)usingAliasDeclaration.Import.AcceptVisitor(this, data)
};
imports.AddChild(clause, ImportsStatement.ImportsClauseRole);
return EndNode(usingAliasDeclaration, imports);
}
public AstNode VisitUsingDeclaration(CSharp.UsingDeclaration usingDeclaration, object data)
{
var imports = new ImportsStatement();
var clause = new MemberImportsClause() {
Member = (AstType)usingDeclaration.Import.AcceptVisitor(this, data)
};
imports.AddChild(clause, ImportsStatement.ImportsClauseRole);
return EndNode(usingDeclaration, imports);
}
public AstNode VisitExternAliasDeclaration(CSharp.ExternAliasDeclaration externAliasDeclaration, object data)
{
throw new NotImplementedException();
}
public AstNode VisitBlockStatement(CSharp.BlockStatement blockStatement, object data)
{
var block = new BlockStatement();
blocks.Push(block);
ConvertNodes(blockStatement, block.Statements);
blocks.Pop();
return EndNode(blockStatement, block);
}
public AstNode VisitBreakStatement(CSharp.BreakStatement breakStatement, object data)
{
var exit = new ExitStatement(ExitKind.None);
foreach (var stmt in breakStatement.Ancestors) {
if (stmt is CSharp.MethodDeclaration) {
exit.ExitKind = IsSub(((CSharp.MethodDeclaration)stmt).ReturnType) ? ExitKind.Sub : ExitKind.Function;
break;
}
if (stmt is CSharp.PropertyDeclaration) {
exit.ExitKind = ExitKind.Property;
break;
}
if (stmt is CSharp.DoWhileStatement) {
exit.ExitKind = ExitKind.Do;
break;
}
if (stmt is CSharp.ForStatement || stmt is CSharp.ForeachStatement) {
exit.ExitKind = ExitKind.For;
break;
}
if (stmt is CSharp.WhileStatement) {
exit.ExitKind = ExitKind.While;
break;
}
if (stmt is CSharp.SwitchStatement) {
exit.ExitKind = ExitKind.Select;
break;
}
if (stmt is CSharp.TryCatchStatement) {
exit.ExitKind = ExitKind.Try;
break;
}
}
return EndNode(breakStatement, exit);
}
public AstNode VisitCheckedStatement(CSharp.CheckedStatement checkedStatement, object data)
{
blocks.Peek().AddChild(new Comment(" The following expression was wrapped in a checked-statement", false), AstNode.Roles.Comment);
var body = (BlockStatement)checkedStatement.Body.AcceptVisitor(this, data);
foreach (var stmt in body) {
stmt.Remove();
blocks.Peek().Add(stmt);
}
return EndNode<AstNode>(checkedStatement, null);
}
public AstNode VisitContinueStatement(CSharp.ContinueStatement continueStatement, object data)
{
var @continue = new ContinueStatement(ContinueKind.None);
foreach (var stmt in continueStatement.Ancestors) {
if (stmt is CSharp.DoWhileStatement) {
@continue.ContinueKind = ContinueKind.Do;
break;
}
if (stmt is CSharp.ForStatement || stmt is CSharp.ForeachStatement) {
@continue.ContinueKind = ContinueKind.For;
break;
}
if (stmt is CSharp.WhileStatement) {
@continue.ContinueKind = ContinueKind.While;
break;
}
}
return EndNode(continueStatement, @continue);
}
public AstNode VisitDoWhileStatement(CSharp.DoWhileStatement doWhileStatement, object data)
{
var stmt = new DoLoopStatement();
stmt.ConditionType = ConditionType.LoopWhile;
stmt.Expression = (Expression)doWhileStatement.Condition.AcceptVisitor(this, data);
stmt.Body = (BlockStatement)doWhileStatement.EmbeddedStatement.AcceptVisitor(this, data);
return EndNode(doWhileStatement, stmt);
}
public AstNode VisitEmptyStatement(CSharp.EmptyStatement emptyStatement, object data)
{
return EndNode<Statement>(emptyStatement, null);
}
public AstNode VisitExpressionStatement(CSharp.ExpressionStatement expressionStatement, object data)
{
var expr = new ExpressionStatement((Expression)expressionStatement.Expression.AcceptVisitor(this, data));
return EndNode(expressionStatement, expr);
}
public AstNode VisitFixedStatement(CSharp.FixedStatement fixedStatement, object data)
{
var block = blocks.Peek();
block.AddChild(new Comment(" Emulating fixed-Statement, might not be entirely correct!", false), AstNode.Roles.Comment);
var variables = new LocalDeclarationStatement();
variables.Modifiers = Modifiers.Dim;
var stmt = new TryStatement();
stmt.FinallyBlock = new BlockStatement();
foreach (var decl in fixedStatement.Variables) {
var v = new VariableDeclaratorWithTypeAndInitializer {
Identifiers = { new VariableIdentifier { Name = decl.Name } },
Type = new SimpleType("GCHandle"),
Initializer = new InvocationExpression(
new MemberAccessExpression { Target = new IdentifierExpression { Identifier = "GCHandle" }, MemberName = "Alloc" },
(Expression)decl.Initializer.AcceptVisitor(this, data),
new MemberAccessExpression { Target = new IdentifierExpression { Identifier = "GCHandleType" }, MemberName = "Pinned" }
)
};
variables.Variables.Add(v);
stmt.FinallyBlock.Add(new IdentifierExpression { Identifier = decl.Name }.Invoke("Free"));
}
block.Add(variables);
stmt.Body = (BlockStatement)fixedStatement.EmbeddedStatement.AcceptVisitor(this, data);
foreach (var ident in stmt.Body.Descendants.OfType<IdentifierExpression>()) {
ident.ReplaceWith(expr => ((Expression)expr).Invoke("AddrOfPinnedObject"));
}
return EndNode(fixedStatement, stmt);
}
public AstNode VisitForeachStatement(CSharp.ForeachStatement foreachStatement, object data)
{
var stmt = new ForEachStatement() {
Body = (BlockStatement)foreachStatement.EmbeddedStatement.AcceptVisitor(this, data),
InExpression = (Expression)foreachStatement.InExpression.AcceptVisitor(this, data),
Variable = new VariableInitializer() {
Identifier = new VariableIdentifier() { Name = foreachStatement.VariableName },
Type = (AstType)foreachStatement.VariableType.AcceptVisitor(this, data)
}
};
return EndNode(foreachStatement, stmt);
}
public AstNode VisitForStatement(CSharp.ForStatement forStatement, object data)
{
// for (;;) ;
if (!forStatement.Initializers.Any() && forStatement.Condition.IsNull && !forStatement.Iterators.Any())
return EndNode(forStatement, new WhileStatement() { Condition = new PrimitiveExpression(true), Body = (BlockStatement)forStatement.EmbeddedStatement.AcceptVisitor(this, data) });
CSharp.AstNode counterLoop = new CSharp.ForStatement() {
Initializers = {
new NamedNode(
"iteratorVar",
new Choice {
new CSharp.VariableDeclarationStatement {
Type = new Choice {
new CSharp.PrimitiveType("long"),
new CSharp.PrimitiveType("ulong"),
new CSharp.PrimitiveType("int"),
new CSharp.PrimitiveType("uint"),
new CSharp.PrimitiveType("short"),
new CSharp.PrimitiveType("ushort"),
new CSharp.PrimitiveType("sbyte"),
new CSharp.PrimitiveType("byte")
},
Variables = {
new AnyNode()
}
},
new CSharp.ExpressionStatement(
new CSharp.AssignmentExpression()
)
})
},
Condition = new NamedNode(
"condition",
new CSharp.BinaryOperatorExpression {
Left = new NamedNode("ident", new CSharp.IdentifierExpression(Pattern.AnyString)),
Operator = CSharp.BinaryOperatorType.Any,
Right = new AnyNode("endExpr")
}),
Iterators = {
new CSharp.ExpressionStatement(
new NamedNode(
"increment",
new CSharp.AssignmentExpression {
Left = new Backreference("ident"),
Operator = CSharp.AssignmentOperatorType.Any,
Right = new NamedNode("factor", new AnyNode())
}
)
)
},
EmbeddedStatement = new NamedNode("body", new AnyNode())
};
var match = counterLoop.Match(forStatement);
if (match.Success) {
var init = match.Get<CSharp.Statement>("iteratorVar").SingleOrDefault();
AstNode iteratorVariable;
if (init is CSharp.VariableDeclarationStatement) {
var var = ((CSharp.VariableDeclarationStatement)init).Variables.First();
iteratorVariable = new VariableInitializer() {
Identifier = new VariableIdentifier { Name = var.Name },
Type = (AstType)((CSharp.VariableDeclarationStatement)init).Type.AcceptVisitor(this, data),
Expression = (Expression)var.Initializer.AcceptVisitor(this, data)
};
} else if (init is CSharp.ExpressionStatement) {
iteratorVariable = init.AcceptVisitor(this, data);
} else goto end;
Expression toExpr = Expression.Null;
var cond = match.Get<CSharp.BinaryOperatorExpression>("condition").SingleOrDefault();
var endExpr = (Expression)match.Get<CSharp.Expression>("endExpr").SingleOrDefault().AcceptVisitor(this, data);
if (cond.Operator == CSharp.BinaryOperatorType.LessThanOrEqual ||
cond.Operator == CSharp.BinaryOperatorType.GreaterThanOrEqual) {
toExpr = endExpr;
}
if (cond.Operator == CSharp.BinaryOperatorType.LessThan)
toExpr = new BinaryOperatorExpression(endExpr, BinaryOperatorType.Subtract, new PrimitiveExpression(1));
if (cond.Operator == CSharp.BinaryOperatorType.GreaterThan)
toExpr = new BinaryOperatorExpression(endExpr, BinaryOperatorType.Add, new PrimitiveExpression(1));
Expression stepExpr = Expression.Null;
var increment = match.Get<CSharp.AssignmentExpression>("increment").SingleOrDefault();
var factorExpr = (Expression)match.Get<CSharp.Expression>("factor").SingleOrDefault().AcceptVisitor(this, data);
if (increment.Operator == CSharp.AssignmentOperatorType.Add && (factorExpr is PrimitiveExpression && !IsEqual(((PrimitiveExpression)factorExpr).Value, 1)))
stepExpr = factorExpr;
if (increment.Operator == CSharp.AssignmentOperatorType.Subtract)
stepExpr = new UnaryOperatorExpression(UnaryOperatorType.Minus, factorExpr);
return new ForStatement() {
Variable = iteratorVariable,
ToExpression = toExpr,
StepExpression = stepExpr,
Body = (BlockStatement)match.Get<CSharp.Statement>("body").Single().AcceptVisitor(this, data)
};
}
end:
var stmt = new WhileStatement() {
Condition = (Expression)forStatement.Condition.AcceptVisitor(this, data),
Body = (BlockStatement)forStatement.EmbeddedStatement.AcceptVisitor(this, data)
};
ConvertNodes(forStatement.Iterators, stmt.Body.Statements);
foreach (var initializer in forStatement.Initializers)
blocks.Peek().Statements.Add((Statement)initializer.AcceptVisitor(this, data));
return EndNode(forStatement, stmt);
}
bool IsEqual(object value, int num)
{
if (value is byte)
return (byte)value == num;
if (value is sbyte)
return (sbyte)value == num;
if (value is short)
return (short)value == num;
if (value is ushort)
return (ushort)value == num;
if (value is int)
return (int)value == num;
if (value is uint)
return (uint)value == num;
if (value is long)
return (long)value == num;
if (value is ulong)
return (ulong)value == (ulong)num;
throw new InvalidCastException();
}
public AstNode VisitGotoCaseStatement(CSharp.GotoCaseStatement gotoCaseStatement, object data)
{
throw new NotImplementedException();
}
public AstNode VisitGotoDefaultStatement(CSharp.GotoDefaultStatement gotoDefaultStatement, object data)
{
throw new NotImplementedException();
}
public AstNode VisitGotoStatement(CSharp.GotoStatement gotoStatement, object data)
{
return EndNode(gotoStatement, new GoToStatement() { Label = new IdentifierExpression() { Identifier = gotoStatement.Label } });
}
public AstNode VisitIfElseStatement(CSharp.IfElseStatement ifElseStatement, object data)
{
var stmt = new IfElseStatement();
stmt.Condition = (Expression)ifElseStatement.Condition.AcceptVisitor(this, data);
stmt.Body = (Statement)ifElseStatement.TrueStatement.AcceptVisitor(this, data);
stmt.ElseBlock = (Statement)ifElseStatement.FalseStatement.AcceptVisitor(this, data);
return EndNode(ifElseStatement, stmt);
}
public AstNode VisitLabelStatement(CSharp.LabelStatement labelStatement, object data)
{
return EndNode(labelStatement, new LabelDeclarationStatement() { Label = new IdentifierExpression() { Identifier = labelStatement.Label } });
}
public AstNode VisitLockStatement(CSharp.LockStatement lockStatement, object data)
{
var stmt = new SyncLockStatement();
stmt.Expression = (Expression)lockStatement.Expression.AcceptVisitor(this, data);
stmt.Body = (BlockStatement)lockStatement.EmbeddedStatement.AcceptVisitor(this, data);
return EndNode(lockStatement, stmt);
}
public AstNode VisitReturnStatement(CSharp.ReturnStatement returnStatement, object data)
{
var stmt = new ReturnStatement((Expression)returnStatement.Expression.AcceptVisitor(this, data));
return EndNode(returnStatement, stmt);
}
public AstNode VisitSwitchStatement(CSharp.SwitchStatement switchStatement, object data)
{
var stmt = new SelectStatement() { Expression = (Expression)switchStatement.Expression.AcceptVisitor(this, data) };
ConvertNodes(switchStatement.SwitchSections, stmt.Cases);
return EndNode(switchStatement, stmt);
}
public AstNode VisitSwitchSection(CSharp.SwitchSection switchSection, object data)
{
var caseStmt = new CaseStatement();
ConvertNodes(switchSection.CaseLabels, caseStmt.Clauses);
if (switchSection.Statements.Count == 1 && switchSection.Statements.FirstOrDefault() is CSharp.BlockStatement)
caseStmt.Body = (BlockStatement)switchSection.Statements.FirstOrDefault().AcceptVisitor(this, data);
else {
caseStmt.Body = new BlockStatement();
ConvertNodes(switchSection.Statements, caseStmt.Body.Statements);
}
if (caseStmt.Body.LastOrDefault() is ExitStatement && ((ExitStatement)caseStmt.Body.LastOrDefault()).ExitKind == ExitKind.Select)
caseStmt.Body.LastOrDefault().Remove();
return EndNode(switchSection, caseStmt);
}
public AstNode VisitCaseLabel(CSharp.CaseLabel caseLabel, object data)
{
return EndNode(caseLabel, new SimpleCaseClause() { Expression = (Expression)caseLabel.Expression.AcceptVisitor(this, data) });
}
public AstNode VisitThrowStatement(CSharp.ThrowStatement throwStatement, object data)
{
return EndNode(throwStatement, new ThrowStatement((Expression)throwStatement.Expression.AcceptVisitor(this, data)));
}
public AstNode VisitTryCatchStatement(CSharp.TryCatchStatement tryCatchStatement, object data)
{
var stmt = new TryStatement();
stmt.Body = (BlockStatement)tryCatchStatement.TryBlock.AcceptVisitor(this, data);
stmt.FinallyBlock = (BlockStatement)tryCatchStatement.FinallyBlock.AcceptVisitor(this, data);
ConvertNodes(tryCatchStatement.CatchClauses, stmt.CatchBlocks);
return EndNode(tryCatchStatement, stmt);
}
public AstNode VisitCatchClause(CSharp.CatchClause catchClause, object data)
{
var clause = new CatchBlock();
clause.ExceptionType = (AstType)catchClause.Type.AcceptVisitor(this, data);
clause.ExceptionVariable = catchClause.VariableName;
ConvertNodes(catchClause.Body.Statements, clause.Statements);
return EndNode(catchClause, clause);
}
public AstNode VisitUncheckedStatement(CSharp.UncheckedStatement uncheckedStatement, object data)
{
throw new NotImplementedException();
}
public AstNode VisitUnsafeStatement(CSharp.UnsafeStatement unsafeStatement, object data)
{
throw new NotImplementedException();
}
public AstNode VisitUsingStatement(CSharp.UsingStatement usingStatement, object data)
{
var stmt = new UsingStatement();
stmt.Resources.Add(usingStatement.ResourceAcquisition.AcceptVisitor(this, data));
stmt.Body = (BlockStatement)usingStatement.EmbeddedStatement.AcceptVisitor(this, data);
return EndNode(usingStatement, stmt);
}
public AstNode VisitVariableDeclarationStatement(CSharp.VariableDeclarationStatement variableDeclarationStatement, object data)
{
var decl = new LocalDeclarationStatement();
decl.Modifiers = Modifiers.Dim;
ConvertNodes(variableDeclarationStatement.Variables, decl.Variables);
return EndNode(variableDeclarationStatement, decl);
}
public AstNode VisitWhileStatement(CSharp.WhileStatement whileStatement, object data)
{
var stmt = new WhileStatement() {
Condition = (Expression)whileStatement.Condition.AcceptVisitor(this, data),
Body = (BlockStatement)whileStatement.EmbeddedStatement.AcceptVisitor(this, data)
};
return EndNode(whileStatement, stmt);
}
public AstNode VisitYieldBreakStatement(CSharp.YieldBreakStatement yieldBreakStatement, object data)
{
var frame = members.Peek();
frame.inIterator = true;
return EndNode(yieldBreakStatement, new ReturnStatement());
}
public AstNode VisitYieldReturnStatement(CSharp.YieldReturnStatement yieldReturnStatement, object data)
{
var frame = members.Peek();
frame.inIterator = true;
return EndNode(yieldReturnStatement, new YieldStatement((Expression)yieldReturnStatement.Expression.AcceptVisitor(this, data)));
}
public AstNode VisitAccessor(CSharp.Accessor accessor, object data)
{
var result = new Accessor();
ConvertNodes(accessor.Attributes, result.Attributes);
ConvertNodes(accessor.ModifierTokens, result.ModifierTokens);
result.Body = (BlockStatement)accessor.Body.AcceptVisitor(this, data);
return EndNode(accessor, result);
}
public AstNode VisitConstructorDeclaration(CSharp.ConstructorDeclaration constructorDeclaration, object data)
{
var result = new ConstructorDeclaration();
ConvertNodes(constructorDeclaration.Attributes, result.Attributes);
ConvertNodes(constructorDeclaration.ModifierTokens, result.ModifierTokens);
ConvertNodes(constructorDeclaration.Parameters, result.Parameters);
result.Body = (BlockStatement)constructorDeclaration.Body.AcceptVisitor(this, data);
if (!constructorDeclaration.Initializer.IsNull)
result.Body.Statements.InsertBefore(result.Body.FirstOrDefault(), (Statement)constructorDeclaration.Initializer.AcceptVisitor(this, data));
return EndNode(constructorDeclaration, result);
}
public AstNode VisitConstructorInitializer(CSharp.ConstructorInitializer constructorInitializer, object data)
{
var result = new InvocationExpression(
new MemberAccessExpression() {
Target = new InstanceExpression(constructorInitializer.ConstructorInitializerType == CSharp.ConstructorInitializerType.This ? InstanceExpressionType.Me : InstanceExpressionType.MyBase, TextLocation.Empty),
MemberName = new Identifier("New", TextLocation.Empty)
}
);
ConvertNodes(constructorInitializer.Arguments, result.Arguments);
return EndNode(constructorInitializer, new ExpressionStatement(result));
}
public AstNode VisitDestructorDeclaration(CSharp.DestructorDeclaration destructorDeclaration, object data)
{
var finalizer = new MethodDeclaration() { Name = "Finalize", IsSub = true };
ConvertNodes(destructorDeclaration.Attributes, finalizer.Attributes);
ConvertNodes(destructorDeclaration.ModifierTokens, finalizer.ModifierTokens);
finalizer.Body = (BlockStatement)destructorDeclaration.Body.AcceptVisitor(this, data);
return EndNode(destructorDeclaration, finalizer);
}
public AstNode VisitEnumMemberDeclaration(CSharp.EnumMemberDeclaration enumMemberDeclaration, object data)
{
var result = new EnumMemberDeclaration();
ConvertNodes(enumMemberDeclaration.Attributes, result.Attributes);
result.Name = new Identifier(enumMemberDeclaration.Name, TextLocation.Empty);
result.Value = (Expression)enumMemberDeclaration.Initializer.AcceptVisitor(this, data);
return EndNode(enumMemberDeclaration, result);
}
public AstNode VisitEventDeclaration(CSharp.EventDeclaration eventDeclaration, object data)
{
members.Push(new MemberInfo());
foreach (var evt in eventDeclaration.Variables) {
var result = new EventDeclaration();
ConvertNodes(eventDeclaration.Attributes, result.Attributes);
if (types.Any() && types.Peek().ClassType == ClassType.Module)
eventDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
result.Modifiers = ConvertModifiers(eventDeclaration.Modifiers, eventDeclaration);
result.Name = evt.Name;
result.ReturnType = (AstType)eventDeclaration.ReturnType.AcceptVisitor(this, data);
// CreateImplementsClausesForEvent(result);
types.Peek().Members.Add(result);
}
members.Pop();
return EndNode<EventDeclaration>(eventDeclaration, null);
}
public AstNode VisitCustomEventDeclaration(CSharp.CustomEventDeclaration customEventDeclaration, object data)
{
var result = new EventDeclaration();
members.Push(new MemberInfo());
ConvertNodes(customEventDeclaration.Attributes, result.Attributes);
if (types.Any() && types.Peek().ClassType == ClassType.Module)
customEventDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
result.Modifiers = ConvertModifiers(customEventDeclaration.Modifiers, customEventDeclaration);
result.IsCustom = true;
result.Name = new Identifier(customEventDeclaration.Name, TextLocation.Empty);
result.ReturnType = (AstType)customEventDeclaration.ReturnType.AcceptVisitor(this, data);
if (!customEventDeclaration.PrivateImplementationType.IsNull)
result.ImplementsClause.Add(
new InterfaceMemberSpecifier((AstType)customEventDeclaration.PrivateImplementationType.AcceptVisitor(this, data), customEventDeclaration.Name));
// else
// CreateImplementsClausesForEvent(result);
result.AddHandlerBlock = (Accessor)customEventDeclaration.AddAccessor.AcceptVisitor(this, data);
result.RemoveHandlerBlock = (Accessor)customEventDeclaration.RemoveAccessor.AcceptVisitor(this, data);
members.Pop();
return EndNode(customEventDeclaration, result);
}
public AstNode VisitFieldDeclaration(CSharp.FieldDeclaration fieldDeclaration, object data)
{
var decl = new FieldDeclaration();
members.Push(new MemberInfo());
ConvertNodes(fieldDeclaration.Attributes, decl.Attributes);
if (types.Any() && types.Peek().ClassType == ClassType.Module)
fieldDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
decl.Modifiers = ConvertModifiers(fieldDeclaration.Modifiers, fieldDeclaration);
ConvertNodes(fieldDeclaration.Variables, decl.Variables);
members.Pop();
return EndNode(fieldDeclaration, decl);
}
public AstNode VisitIndexerDeclaration(CSharp.IndexerDeclaration indexerDeclaration, object data)
{
var decl = new PropertyDeclaration();
members.Push(new MemberInfo());
ConvertNodes(indexerDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), decl.Attributes);
decl.Getter = (Accessor)indexerDeclaration.Getter.AcceptVisitor(this, data);
if (types.Any() && types.Peek().ClassType == ClassType.Module)
indexerDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
decl.Modifiers = ConvertModifiers(indexerDeclaration.Modifiers, indexerDeclaration);
decl.Name = new Identifier(indexerDeclaration.Name, TextLocation.Empty);
ConvertNodes(indexerDeclaration.Parameters, decl.Parameters);
ConvertNodes(indexerDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), decl.ReturnTypeAttributes);
if (!indexerDeclaration.PrivateImplementationType.IsNull)
decl.ImplementsClause.Add(
new InterfaceMemberSpecifier((AstType)indexerDeclaration.PrivateImplementationType.AcceptVisitor(this, data),
indexerDeclaration.Name));
decl.ReturnType = (AstType)indexerDeclaration.ReturnType.AcceptVisitor(this, data);
decl.Setter = (Accessor)indexerDeclaration.Setter.AcceptVisitor(this, data);
if (!decl.Setter.IsNull) {
decl.Setter.Parameters.Add(new ParameterDeclaration() {
Name = new Identifier("value", TextLocation.Empty),
Type = (AstType)indexerDeclaration.ReturnType.AcceptVisitor(this, data),
});
}
members.Pop();
return EndNode(indexerDeclaration, decl);
}
public AstNode VisitMethodDeclaration(CSharp.MethodDeclaration methodDeclaration, object data)
{
CSharp.Attribute attr;
if (types.Any() && types.Peek().ClassType == ClassType.Module)
methodDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
if ((methodDeclaration.Modifiers & CSharp.Modifiers.Extern) == CSharp.Modifiers.Extern && HasAttribute(methodDeclaration.Attributes, "System.Runtime.InteropServices.DllImportAttribute", out attr)) {
var result = new ExternalMethodDeclaration();
members.Push(new MemberInfo());
// remove AttributeSection if only one attribute is present
var attrSec = (CSharp.AttributeSection)attr.Parent;
if (attrSec.Attributes.Count == 1)
attrSec.Remove();
else
attr.Remove();
result.Library = (attr.Arguments.First().AcceptVisitor(this, data) as PrimitiveExpression).Value.ToString();
result.CharsetModifier = ConvertCharset(attr.Arguments);
result.Alias = ConvertAlias(attr.Arguments);
ConvertNodes(methodDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), result.Attributes);
ConvertNodes(methodDeclaration.ModifierTokens, result.ModifierTokens);
result.Name = new Identifier(methodDeclaration.Name, TextLocation.Empty);
result.IsSub = IsSub(methodDeclaration.ReturnType);
ConvertNodes(methodDeclaration.Parameters, result.Parameters);
ConvertNodes(methodDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), result.ReturnTypeAttributes);
if (!result.IsSub)
result.ReturnType = (AstType)methodDeclaration.ReturnType.AcceptVisitor(this, data);
if (members.Pop().inIterator) {
result.Modifiers |= Modifiers.Iterator;
}
return EndNode(methodDeclaration, result);
} else {
var result = new MethodDeclaration();
members.Push(new MemberInfo());
ConvertNodes(methodDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), result.Attributes);
ConvertNodes(methodDeclaration.ModifierTokens, result.ModifierTokens);
result.Name = new Identifier(methodDeclaration.Name, TextLocation.Empty);
result.IsSub = IsSub(methodDeclaration.ReturnType);
ConvertNodes(methodDeclaration.Parameters, result.Parameters);
ConvertNodes(methodDeclaration.TypeParameters, result.TypeParameters);
ConvertNodes(methodDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), result.ReturnTypeAttributes);
if (!methodDeclaration.PrivateImplementationType.IsNull)
result.ImplementsClause.Add(
new InterfaceMemberSpecifier((AstType)methodDeclaration.PrivateImplementationType.AcceptVisitor(this, data),
methodDeclaration.Name));
// else
// CreateImplementsClausesForMethod(result);
if (!result.IsSub)
result.ReturnType = (AstType)methodDeclaration.ReturnType.AcceptVisitor(this, data);
if (methodDeclaration.IsExtensionMethod) {
result.Attributes.Add(
new AttributeBlock {
Attributes = {
new Ast.Attribute {
Type = AstType.FromName("System.Runtime.CompilerServices.ExtensionAttribute")
}
}
});
}
result.Body = (BlockStatement)methodDeclaration.Body.AcceptVisitor(this, data);
if (members.Pop().inIterator) {
result.Modifiers |= Modifiers.Iterator;
}
return EndNode(methodDeclaration, result);
}
}
void CreateImplementsClausesForMethod(MethodDeclaration result)
{
if (!types.Any()) return;
var current = types.Peek();
if (current.ClassType == ClassType.Interface)
return;
foreach (var type in current.ImplementsTypes) {
var resolved = provider.ResolveType(type, current);
var found = resolved.GetMembers(m => m.EntityType == EntityType.Method && m.Name == result.Name.Name);
if (found.FirstOrDefault() != null) {
result.ImplementsClause.Add(new InterfaceMemberSpecifier((AstType)type.Clone(), found.FirstOrDefault().Name));
}
}
}
void CreateImplementsClausesForEvent(EventDeclaration result)
{
if (!types.Any()) return;
var current = types.Peek();
if (current.ClassType == ClassType.Interface)
return;
foreach (var type in current.ImplementsTypes) {
var resolved = provider.ResolveType(type, current);
var found = resolved.GetMembers(m => m.EntityType == EntityType.Event && m.Name == result.Name.Name);
if (found.FirstOrDefault() != null) {
result.ImplementsClause.Add(new InterfaceMemberSpecifier((AstType)type.Clone(), found.FirstOrDefault().Name));
}
}
}
string ConvertAlias(CSharp.AstNodeCollection<CSharp.Expression> arguments)
{
var pattern = new CSharp.AssignmentExpression() {
Left = new CSharp.IdentifierExpression("EntryPoint"),
Operator = CSharp.AssignmentOperatorType.Assign,
Right = new AnyNode("alias")
};
var result = arguments
.Select(expr => pattern.Match(expr))
.FirstOrDefault(r => r.Success);
if (result.Success && result.Has("alias")) {
return result.Get<CSharp.PrimitiveExpression>("alias")
.First().Value.ToString();
}
return null;
}
CharsetModifier ConvertCharset(CSharp.AstNodeCollection<CSharp.Expression> arguments)
{
var pattern = new CSharp.AssignmentExpression() {
Left = new CSharp.IdentifierExpression("CharSet"),
Operator = CSharp.AssignmentOperatorType.Assign,
Right = new NamedNode(
"modifier",
new CSharp.MemberReferenceExpression() {
Target = new CSharp.IdentifierExpression("CharSet"),
MemberName = Pattern.AnyString
})
};
var result = arguments
.Select(expr => pattern.Match(expr))
.FirstOrDefault(r => r.Success);
if (result.Success && result.Has("modifier")) {
switch (result.Get<CSharp.MemberReferenceExpression>("modifier").First().MemberName) {
case "Auto":
return CharsetModifier.Auto;
case "Ansi":
return CharsetModifier.Ansi;
case "Unicode":
return CharsetModifier.Unicode;
}
}
return CharsetModifier.None;
}
bool IsSub(CSharp.AstType returnType)
{
var t = returnType as CSharp.PrimitiveType;
return t != null && t.Keyword == "void";
}
public AstNode VisitOperatorDeclaration(CSharp.OperatorDeclaration operatorDeclaration, object data)
{
MemberDeclaration result;
members.Push(new MemberInfo());
if (types.Any() && types.Peek().ClassType == ClassType.Module)
operatorDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
if (operatorDeclaration.OperatorType == CSharp.OperatorType.Increment || operatorDeclaration.OperatorType == CSharp.OperatorType.Decrement) {
var m = new MethodDeclaration();
result = m;
ConvertNodes(operatorDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), m.Attributes);
ConvertNodes(operatorDeclaration.ModifierTokens, m.ModifierTokens);
m.Name = operatorDeclaration.OperatorType == CSharp.OperatorType.Increment ? "op_Increment" : "op_Decrement";
ConvertNodes(operatorDeclaration.Parameters, m.Parameters);
ConvertNodes(operatorDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), m.ReturnTypeAttributes);
m.ReturnType = (AstType)operatorDeclaration.ReturnType.AcceptVisitor(this, data);
m.Body = (BlockStatement)operatorDeclaration.Body.AcceptVisitor(this, data);
} else {
var op = new OperatorDeclaration();
result = op;
ConvertNodes(operatorDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), op.Attributes);
ConvertNodes(operatorDeclaration.ModifierTokens, op.ModifierTokens);
switch (operatorDeclaration.OperatorType) {
case ICSharpCode.NRefactory.CSharp.OperatorType.LogicalNot:
case ICSharpCode.NRefactory.CSharp.OperatorType.OnesComplement:
op.Operator = OverloadableOperatorType.Not;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.True:
op.Operator = OverloadableOperatorType.IsTrue;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.False:
op.Operator = OverloadableOperatorType.IsFalse;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Implicit:
op.Modifiers |= Modifiers.Widening;
op.Operator = OverloadableOperatorType.CType;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Explicit:
op.Modifiers |= Modifiers.Narrowing;
op.Operator = OverloadableOperatorType.CType;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Addition:
op.Operator = OverloadableOperatorType.Add;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Subtraction:
op.Operator = OverloadableOperatorType.Subtract;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.UnaryPlus:
op.Operator = OverloadableOperatorType.UnaryPlus;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.UnaryNegation:
op.Operator = OverloadableOperatorType.UnaryMinus;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Multiply:
op.Operator = OverloadableOperatorType.Multiply;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Division:
op.Operator = OverloadableOperatorType.Divide;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Modulus:
op.Operator = OverloadableOperatorType.Modulus;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.BitwiseAnd:
op.Operator = OverloadableOperatorType.BitwiseAnd;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.BitwiseOr:
op.Operator = OverloadableOperatorType.BitwiseOr;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.ExclusiveOr:
op.Operator = OverloadableOperatorType.ExclusiveOr;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.LeftShift:
op.Operator = OverloadableOperatorType.ShiftLeft;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.RightShift:
op.Operator = OverloadableOperatorType.ShiftRight;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Equality:
op.Operator = OverloadableOperatorType.Equality;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.Inequality:
op.Operator = OverloadableOperatorType.InEquality;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.GreaterThan:
op.Operator = OverloadableOperatorType.GreaterThan;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.LessThan:
op.Operator = OverloadableOperatorType.LessThan;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.GreaterThanOrEqual:
op.Operator = OverloadableOperatorType.GreaterThanOrEqual;
break;
case ICSharpCode.NRefactory.CSharp.OperatorType.LessThanOrEqual:
op.Operator = OverloadableOperatorType.LessThanOrEqual;
break;
default:
throw new Exception("Invalid value for OperatorType");
}
ConvertNodes(operatorDeclaration.Parameters, op.Parameters);
ConvertNodes(operatorDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), op.ReturnTypeAttributes);
op.ReturnType = (AstType)operatorDeclaration.ReturnType.AcceptVisitor(this, data);
op.Body = (BlockStatement)operatorDeclaration.Body.AcceptVisitor(this, data);
}
members.Pop();
return EndNode(operatorDeclaration, result);
}
public AstNode VisitParameterDeclaration(CSharp.ParameterDeclaration parameterDeclaration, object data)
{
var param = new ParameterDeclaration();
ConvertNodes(parameterDeclaration.Attributes, param.Attributes);
param.Modifiers = ConvertParamModifiers(parameterDeclaration.ParameterModifier);
if ((parameterDeclaration.ParameterModifier & ICSharpCode.NRefactory.CSharp.ParameterModifier.Out) == ICSharpCode.NRefactory.CSharp.ParameterModifier.Out) {
AttributeBlock block = new AttributeBlock();
block.Attributes.Add(new Ast.Attribute() { Type = new SimpleType("Out") });
param.Attributes.Add(block);
}
param.Name = new Identifier(parameterDeclaration.Name, TextLocation.Empty);
param.Type = (AstType)parameterDeclaration.Type.AcceptVisitor(this, data);
param.OptionalValue = (Expression)parameterDeclaration.DefaultExpression.AcceptVisitor(this, data);
if (!param.OptionalValue.IsNull)
param.Modifiers |= Modifiers.Optional;
return EndNode(parameterDeclaration, param);
}
Modifiers ConvertParamModifiers(CSharp.ParameterModifier mods)
{
switch (mods) {
case ICSharpCode.NRefactory.CSharp.ParameterModifier.None:
case ICSharpCode.NRefactory.CSharp.ParameterModifier.This:
return Modifiers.None;
case ICSharpCode.NRefactory.CSharp.ParameterModifier.Ref:
case ICSharpCode.NRefactory.CSharp.ParameterModifier.Out:
return Modifiers.ByRef;
case ICSharpCode.NRefactory.CSharp.ParameterModifier.Params:
return Modifiers.ParamArray;
default:
throw new Exception("Invalid value for ParameterModifier");
}
}
public AstNode VisitPropertyDeclaration(CSharp.PropertyDeclaration propertyDeclaration, object data)
{
var decl = new PropertyDeclaration();
members.Push(new MemberInfo());
if (types.Any() && types.Peek().ClassType == ClassType.Module)
propertyDeclaration.Modifiers &= ~CSharp.Modifiers.Static;
ConvertNodes(propertyDeclaration.Attributes.Where(section => section.AttributeTarget != "return"), decl.Attributes);
decl.Getter = (Accessor)propertyDeclaration.Getter.AcceptVisitor(this, data);
decl.Modifiers = ConvertModifiers(propertyDeclaration.Modifiers, propertyDeclaration);
decl.Name = new Identifier(propertyDeclaration.Name, TextLocation.Empty);
ConvertNodes(propertyDeclaration.Attributes.Where(section => section.AttributeTarget == "return"), decl.ReturnTypeAttributes);
if (!propertyDeclaration.PrivateImplementationType.IsNull)
decl.ImplementsClause.Add(
new InterfaceMemberSpecifier((AstType)propertyDeclaration.PrivateImplementationType.AcceptVisitor(this, data),
propertyDeclaration.Name));
decl.ReturnType = (AstType)propertyDeclaration.ReturnType.AcceptVisitor(this, data);
decl.Setter = (Accessor)propertyDeclaration.Setter.AcceptVisitor(this, data);
if (!decl.Setter.IsNull) {
decl.Setter.Parameters.Add(new ParameterDeclaration() {
Name = new Identifier("value", TextLocation.Empty),
Type = (AstType)propertyDeclaration.ReturnType.AcceptVisitor(this, data),
});
}
if (members.Pop().inIterator) {
decl.Modifiers |= Modifiers.Iterator;
}
return EndNode(propertyDeclaration, decl);
}
public AstNode VisitVariableInitializer(CSharp.VariableInitializer variableInitializer, object data)
{
var decl = new VariableDeclaratorWithTypeAndInitializer();
// look for type in parent
decl.Type = (AstType)variableInitializer.Parent
.GetChildByRole(CSharp.VariableInitializer.Roles.Type)
.AcceptVisitor(this, data);
decl.Identifiers.Add(new VariableIdentifier() { Name = variableInitializer.Name });
decl.Initializer = (Expression)variableInitializer.Initializer.AcceptVisitor(this, data);
return EndNode(variableInitializer, decl);
}
public AstNode VisitFixedFieldDeclaration(CSharp.FixedFieldDeclaration fixedFieldDeclaration, object data)
{
throw new NotImplementedException();
}
public AstNode VisitFixedVariableInitializer(CSharp.FixedVariableInitializer fixedVariableInitializer, object data)
{
throw new NotImplementedException();
}
public AstNode VisitCompilationUnit(CSharp.CompilationUnit compilationUnit, object data)
{
var unit = new CompilationUnit();
foreach (var node in compilationUnit.Children)
unit.AddChild(node.AcceptVisitor(this, null), CompilationUnit.MemberRole);
return EndNode(compilationUnit, unit);
}
public AstNode VisitSimpleType(CSharp.SimpleType simpleType, object data)
{
var type = new SimpleType(simpleType.Identifier);
ConvertNodes(simpleType.TypeArguments, type.TypeArguments);
return EndNode(simpleType, type);
}
public AstNode VisitMemberType(CSharp.MemberType memberType, object data)
{
AstType target = null;
if (memberType.Target is CSharp.SimpleType && ((CSharp.SimpleType)(memberType.Target)).Identifier.Equals("global", StringComparison.Ordinal))
target = new PrimitiveType("Global");
else
target = (AstType)memberType.Target.AcceptVisitor(this, data);
var type = new QualifiedType(target, new Identifier(memberType.MemberName, TextLocation.Empty));
ConvertNodes(memberType.TypeArguments, type.TypeArguments);
return EndNode(memberType, type);
}
public AstNode VisitComposedType(CSharp.ComposedType composedType, object data)
{
AstType type = new ComposedType();
ConvertNodes(composedType.ArraySpecifiers, ((ComposedType)type).ArraySpecifiers);
((ComposedType)type).BaseType = (AstType)composedType.BaseType.AcceptVisitor(this, data);
((ComposedType)type).HasNullableSpecifier = composedType.HasNullableSpecifier;
for (int i = 0; i < composedType.PointerRank; i++) {
var tmp = new SimpleType() { Identifier = "__Pointer" };
tmp.TypeArguments.Add(type);
type = tmp;
}
return EndNode(composedType, type);
}
public AstNode VisitArraySpecifier(CSharp.ArraySpecifier arraySpecifier, object data)
{
return EndNode(arraySpecifier, new ArraySpecifier(arraySpecifier.Dimensions));
}
public AstNode VisitPrimitiveType(CSharp.PrimitiveType primitiveType, object data)
{
string typeName;
switch (primitiveType.Keyword) {
case "object":
typeName = "Object";
break;
case "bool":
typeName = "Boolean";
break;
case "char":
typeName = "Char";
break;
case "sbyte":
typeName = "SByte";
break;
case "byte":
typeName = "Byte";
break;
case "short":
typeName = "Short";
break;
case "ushort":
typeName = "UShort";
break;
case "int":
typeName = "Integer";
break;
case "uint":
typeName = "UInteger";
break;
case "long":
typeName = "Long";
break;
case "ulong":
typeName = "ULong";
break;
case "float":
typeName = "Single";
break;
case "double":
typeName = "Double";
break;
case "decimal":
typeName = "Decimal";
break;
case "string":
typeName = "String";
break;
// generic constraints
case "new":
typeName = "New";
break;
case "struct":
typeName = "Structure";
break;
case "class":
typeName = "Class";
break;
case "void":
typeName = "Void";
break;
default:
typeName = "unknown";
break;
}
return EndNode(primitiveType, new PrimitiveType(typeName));
}
public AstNode VisitComment (CSharp.Comment comment, object data)
{
var c = new Comment (comment.Content, comment.CommentType == CSharp.CommentType.Documentation);
if (comment.CommentType == CSharp.CommentType.MultiLine)
throw new NotImplementedException ();
return EndNode (comment, c);
}
public AstNode VisitPreProcessorDirective (CSharp.PreProcessorDirective preProcessorDirective, object data)
{
// TODO
return null;
}
public AstNode VisitTypeParameterDeclaration(CSharp.TypeParameterDeclaration typeParameterDeclaration, object data)
{
var param = new TypeParameterDeclaration() {
Variance = typeParameterDeclaration.Variance,
Name = typeParameterDeclaration.Name
};
var constraint = typeParameterDeclaration.Parent
.GetChildrenByRole(CSharp.AstNode.Roles.Constraint)
.SingleOrDefault(c => c.TypeParameter == typeParameterDeclaration.Name);
if (constraint != null)
ConvertNodes(constraint.BaseTypes, param.Constraints);
// TODO : typeParameterDeclaration.Attributes get lost?
//ConvertNodes(typeParameterDeclaration.Attributes
return EndNode(typeParameterDeclaration, param);
}
public AstNode VisitConstraint(CSharp.Constraint constraint, object data)
{
throw new NotImplementedException();
}
public AstNode VisitCSharpTokenNode(CSharp.CSharpTokenNode cSharpTokenNode, object data)
{
var mod = cSharpTokenNode as CSharp.CSharpModifierToken;
if (mod != null) {
var convertedModifiers = ConvertModifiers(mod.Modifier, mod.Parent);
VBModifierToken token = null;
if (convertedModifiers != Modifiers.None) {
token = new VBModifierToken(TextLocation.Empty, convertedModifiers);
return EndNode(cSharpTokenNode, token);
}
return EndNode(cSharpTokenNode, token);
} else {
throw new NotSupportedException("Should never visit individual tokens");
}
}
Modifiers ConvertModifiers(CSharp.Modifiers modifier, CSharp.AstNode container)
{
if ((modifier & CSharp.Modifiers.Any) == CSharp.Modifiers.Any)
return Modifiers.Any;
var mod = Modifiers.None;
if ((modifier & CSharp.Modifiers.Const) == CSharp.Modifiers.Const)
mod |= Modifiers.Const;
if ((modifier & CSharp.Modifiers.Abstract) == CSharp.Modifiers.Abstract) {
if (container is CSharp.TypeDeclaration)
mod |= Modifiers.MustInherit;
else
mod |= Modifiers.MustOverride;
}
if ((modifier & CSharp.Modifiers.Static) == CSharp.Modifiers.Static)
mod |= Modifiers.Shared;
if ((modifier & CSharp.Modifiers.Public) == CSharp.Modifiers.Public)
mod |= Modifiers.Public;
if ((modifier & CSharp.Modifiers.Protected) == CSharp.Modifiers.Protected)
mod |= Modifiers.Protected;
if ((modifier & CSharp.Modifiers.Internal) == CSharp.Modifiers.Internal)
mod |= Modifiers.Friend;
if ((modifier & CSharp.Modifiers.Private) == CSharp.Modifiers.Private)
mod |= Modifiers.Private;
if (container is CSharp.IndexerDeclaration)
mod |= Modifiers.Default;
bool writeable = IsWriteableProperty(container);
bool readable = IsReadableProperty(container);
if (writeable && !readable)
mod |= Modifiers.WriteOnly;
if (readable && !writeable)
mod |= Modifiers.ReadOnly;
if ((modifier & CSharp.Modifiers.Override) == CSharp.Modifiers.Override)
mod |= Modifiers.Override;
if ((modifier & CSharp.Modifiers.Virtual) == CSharp.Modifiers.Virtual)
mod |= Modifiers.Overridable;
return mod;
}
bool IsReadableProperty(ICSharpCode.NRefactory.CSharp.AstNode container)
{
if (container is CSharp.IndexerDeclaration) {
var i = container as CSharp.IndexerDeclaration;
return !i.Getter.IsNull;
}
if (container is CSharp.PropertyDeclaration) {
var p = container as CSharp.PropertyDeclaration;
return !p.Getter.IsNull;
}
return false;
}
bool IsWriteableProperty(ICSharpCode.NRefactory.CSharp.AstNode container)
{
if (container is CSharp.IndexerDeclaration) {
var i = container as CSharp.IndexerDeclaration;
return !i.Setter.IsNull;
}
if (container is CSharp.PropertyDeclaration) {
var p = container as CSharp.PropertyDeclaration;
return !p.Setter.IsNull;
}
return false;
}
public AstNode VisitIdentifier(CSharp.Identifier identifier, object data)
{
var ident = new Identifier(identifier.Name, identifier.StartLocation);
return EndNode(identifier, ident);
}
public AstNode VisitPatternPlaceholder(CSharp.AstNode placeholder, ICSharpCode.NRefactory.PatternMatching.Pattern pattern, object data)
{
throw new NotImplementedException();
}
void ConvertNodes<T>(IEnumerable<CSharp.AstNode> nodes, VB.AstNodeCollection<T> result) where T : VB.AstNode
{
foreach (var node in nodes) {
T n = (T)node.AcceptVisitor(this, null);
if (n != null)
result.Add(n);
}
}
T EndNode<T>(CSharp.AstNode node, T result) where T : VB.AstNode
{
if (result != null) {
CopyAnnotations(node, result);
}
return result;
}
void CopyAnnotations<T>(CSharp.AstNode node, T result) where T : VB.AstNode
{
foreach (var ann in node.Annotations)
result.AddAnnotation(ann);
}
bool HasAttribute(CSharp.AstNodeCollection<CSharp.AttributeSection> attributes, string name, out CSharp.Attribute foundAttribute)
{
foreach (var attr in attributes.SelectMany(a => a.Attributes)) {
if (provider.GetTypeNameForAttribute(attr) == name) {
foundAttribute = attr;
return true;
}
}
foundAttribute = null;
return false;
}
}
}