private Expression IfNotNull(Reference targetReference)
{
var expression = new MultiStatementExpression();
var arguments = ArgumentsUtil.ConvertToArgumentReferenceExpression(MethodToOverride.GetParameters());
expression.AddStatement(new ReturnStatement(
new MethodInvocationExpression(
targetReference,
MethodToOverride,
arguments) { VirtualCall = true }));
return expression;
}
private void InitOutParameters(MultiStatementExpression expression, ParameterInfo[] parameters)
{
for (var index = 0; index < parameters.Length; index++)
{
var parameter = parameters[index];
if (parameter.IsOut)
{
expression.AddStatement(
new AssignArgumentStatement(new ArgumentReference(parameter.ParameterType, index + 1),
new DefaultValueExpression(parameter.ParameterType)));
}
}
}
private Expression IfNull(Type returnType)
{
var expression = new MultiStatementExpression();
InitOutParameters(expression, MethodToOverride.GetParameters());
if (returnType == typeof(void))
{
expression.AddStatement(new ReturnStatement());
}
else
{
expression.AddStatement(new ReturnStatement(new DefaultValueExpression(returnType)));
}
return expression;
}