public override Expression CloneExpressionOnly()
{
stackVariable4 = new ArrayIndexerExpression(this.get_Target().CloneExpressionOnly(), null);
stackVariable4.set_Indices(this.get_Indices().CloneExpressionsOnly());
stackVariable4.set_IsSimpleStore(this.get_IsSimpleStore());
return(stackVariable4);
}
public override Expression Clone()
{
stackVariable5 = new ArrayIndexerExpression(this.get_Target().Clone(), this.instructions);
stackVariable5.set_Indices(this.get_Indices().Clone());
stackVariable5.set_IsSimpleStore(this.get_IsSimpleStore());
return(stackVariable5);
}
public override bool Equals(Expression other)
{
if (!(other is ArrayIndexerExpression))
{
return(false);
}
ArrayIndexerExpression indexer = other as ArrayIndexerExpression;
return(this.Target.Equals(indexer.Target) && this.Indices.Equals(indexer.Indices));
}
public ICodeNode VisitMethodInvocationExpression(MethodInvocationExpression node)
{
MethodReferenceExpression methodReference = node.MethodExpression;
if ((methodReference == null) ||
(methodReference.Method.CallingConvention == MethodCallingConvention.StdCall))
{
return null;
}
MethodReference method = methodReference.Method;
BinaryOperator binaryOperator;
if (binaryOperators.TryGetValue (method.Name, out binaryOperator))
{
return BuildBinaryExpression(binaryOperator, node.Arguments[0], node.Arguments[1], method.FixedReturnType, node.InvocationInstructions);
}
UnaryOperator unaryOperator;
if (unaryOperators.TryGetValue (method.Name, out unaryOperator))
{
return BuildUnaryExpression(unaryOperator, node.Arguments[0], node.InvocationInstructions);
}
if(method.Name == "op_True")
{
return (Expression)codeTransformer.Visit(node.Arguments[0]);
}
else if(method.Name == "op_False")
{
//TODO: Must consider better representation
return new ConditionExpression((Expression)codeTransformer.Visit(node.Arguments[0]),
new LiteralExpression(false, typeSystem, null), new LiteralExpression(true, typeSystem, null), node.InvocationInstructions);
}
if (method.Name == "op_Explicit")
{
return new CastExpression((Expression)codeTransformer.Visit(node.Arguments[0]), node.ExpressionType, node.InvocationInstructions);
}
if (method.Name == "op_Implicit")
{
return codeTransformer.Visit(node.Arguments[0]);
}
if (method.Name == "get_Chars" && node.MethodExpression.Target.ExpressionType.FullName == "System.String")
{
ArrayIndexerExpression stringIndexing = new ArrayIndexerExpression(node.MethodExpression.Target, node.InvocationInstructions);
foreach (Expression arg in node.Arguments)
{
stringIndexing.Indices.Add(arg);
}
return stringIndexing;
}
return null;
}
public override void VisitArrayIndexerExpression(ArrayIndexerExpression node)
{
states.Push(Step.Default);
base.VisitArrayIndexerExpression(node);
states.Pop();
}
public override void VisitArrayIndexerExpression(ArrayIndexerExpression node)
{
Visit(node.Target);
expressions.Push(ExpressionKind.None);
Visit(node.Indices);
expressions.Pop();
}
/// <summary>
/// Determines the use type of <paramref name="variable"/> in <paramref name="arrayIndexerExpression"/>.
/// </summary>
/// <param name="arrayIndexerExpression">The array indexer expression.</param>
/// <param name="variable">The variable.</param>
/// <returns>Returns the ClassHierarchyNode corresponding to the infered type.</returns>
private ClassHierarchyNode GetUseInArrayIndexer(ArrayIndexerExpression arrayIndexerExpression, VariableReference variable)
{
foreach (Expression expr in arrayIndexerExpression.Indices)
{
if (expr is VariableReferenceExpression && (expr as VariableReferenceExpression).Variable == variable)
{
return GetTypeNode(typeSystem.Int32);
}
}
///If the variable is not indexer, it might be of any array type.
///System.Array is returned, since it's the parent type of every array type.
TypeReference result = new TypeReference("System", "Array", typeSystem.Object.Module, typeSystem.Object.Scope);
return GetTypeNode(result);
}
public override ICodeNode VisitArrayIndexerExpression(ArrayIndexerExpression node)
{
node.Target = (Expression)VisitTargetExpression(node.Target);
node.Indices = (ExpressionCollection)Visit(node.Indices);
return node;
}
public virtual void VisitArrayIndexerExpression(ArrayIndexerExpression node)
{
VisitIIndexerExpression(node);
}
private bool CheckArrayIndexerExpression(ArrayIndexerExpression expression, VariableReference arrayVariable, int index)
{
return expression.Target.CodeNodeType == CodeNodeType.VariableReferenceExpression &&
(expression.Target as VariableReferenceExpression).Variable == arrayVariable &&
expression.Indices.Count == 1 &&
expression.Indices[0].CodeNodeType == CodeNodeType.LiteralExpression &&
Convert.ToInt32((expression.Indices[0] as LiteralExpression).Value) == index;
}
public override void VisitArrayIndexerExpression(ArrayIndexerExpression node)
{
base.VisitArrayIndexerExpression(node);
for (int i = 0; i < node.Indices.Count; i++)
{
Expression index = node.Indices[i];
if (index.HasType)
{
TypeDefinition indexType = index.ExpressionType.Resolve();
if (ShouldAddCast(indexType, typeSystem.Int32))
{
node.Indices[i] = new CastExpression(index, typeSystem.Int32, null);
}
}
}
}
