public static Expression TryConvert(DecompilerContext context, Expression expr)
{
Expression converted = new ExpressionTreeConverter(context).Convert(expr);
if (converted != null) {
converted.AddAnnotation(new ExpressionTreeLambdaAnnotation());
}
return converted;
}
public static Expression TryConvert(DecompilerContext context, Expression expr, StringBuilder sb)
{
Expression converted = new ExpressionTreeConverter(context, sb).Convert(expr);
if (converted != null)
{
converted.AddAnnotation(new ExpressionTreeLambdaAnnotation());
}
return(converted);
}
public override object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
if (context.Settings.ExpressionTrees && ExpressionTreeConverter.CouldBeExpressionTree(invocationExpression))
{
Expression converted = ExpressionTreeConverter.TryConvert(context, invocationExpression);
if (converted != null)
{
invocationExpression.ReplaceWith(converted);
return(converted.AcceptVisitor(this, data));
}
}
return(base.VisitInvocationExpression(invocationExpression, data));
}
public override object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
if (context.Settings.ExpressionTrees && ExpressionTreeConverter.CouldBeExpressionTree(invocationExpression))
{
Expression converted = ExpressionTreeConverter.TryConvert(context, invocationExpression);
if (converted != null)
{
//TODO: Do we need to preserve ILRanges or is it taken care of by TryConvert?
invocationExpression.ReplaceWith(converted);
return(converted.AcceptVisitor(this, data));
}
}
return(base.VisitInvocationExpression(invocationExpression, data));
}
public override object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
{
if (context.Settings.ExpressionTrees && ExpressionTreeConverter.CouldBeExpressionTree(invocationExpression))
{
Expression converted = ExpressionTreeConverter.TryConvert(context, invocationExpression);
if (converted != null)
{
invocationExpression.ReplaceWith(converted);
return(converted.AcceptVisitor(this, data));
}
}
var definition = invocationExpression.Annotation <MethodDefinition>();
if (definition != null)
{
//Handle hoisted base calls from yield return compiler generated class (can be generated by both Mono and Roslyn)
if (definition.DeclaringType == context.CurrentType && definition.IsCompilerGenerated())
{
DecompilerContext subContext = context.Clone();
subContext.CurrentMethod = definition;
subContext.CurrentMethodIsAsync = false;
subContext.ReservedVariableNames.AddRange(currentlyUsedVariableNames);
var parameters = AstBuilder.MakeParameters(definition, isLambda: true);
BlockStatement body = AstMethodBodyBuilder.CreateMethodBody(definition, subContext, parameters);
TransformationPipeline.RunTransformationsUntil(body, v => v is DelegateConstruction, subContext);
if (body.Statements.Count == 1)
{
var statement = body.Statements.Single();
Expression expr = null;
if (statement is ReturnStatement)
{
expr = ((ReturnStatement)statement).Expression;
}
else if (statement is ExpressionStatement)
{
expr = ((ExpressionStatement)statement).Expression;
}
if (expr != null)
{
expr.Remove();
invocationExpression.ReplaceWith(expr);
return(expr.AcceptVisitor(this, data));
}
}
}
}
return(base.VisitInvocationExpression(invocationExpression, data));
}