public static MappingInfo Create(FromInfo @from, ToInfo to)
{
return new MappingInfo
{
From = from,
To = to
};
}
private static IEnumerable <MappingInfo> AnalyzeLoadMethod(SemanticModel semanticModel, ISymbol loadMethod)
{
var syntaxNode = loadMethod.DeclaringSyntaxReferences.Single().GetSyntax();
var methodSymbols = syntaxNode.DescendantNodes()
.OfType <InvocationExpressionSyntax>()
.Select(invocationExpressionSyntax =>
semanticModel.GetSymbolInfo(invocationExpressionSyntax.Expression).Symbol as IMethodSymbol)
.Where(e => e != null &&
e.GetFullMetadataName() == ExternalLibraryInformation.Module.Register.FullName &&
e.Parameters.IsEmpty);
foreach (var mapping in methodSymbols.Select(e => e.TypeArguments)
.Where(typeArguments =>
typeArguments.Length == ExternalLibraryInformation.Module.RegisterMethodsGenericCount))
{
if (!(mapping[0] is INamedTypeSymbol from))
{
throw new AnalyzerException(
$"Implementation is invalid: {mapping[0].ToDisplayString()}");
}
if (!from.Constructors.Any())
{
throw new AnalyzerException(
$"Implementation has no constructor: {mapping[0].ToDisplayString()}");
}
var constructionInfos = from.Constructors.Select(constructor =>
ConstructionInfo.Create(
constructor.Parameters.Select(
parameter => ParameterInfo.Create(parameter.Type.GetFullMetadataName()))
.ToList()))
.ToList();
var fromInfo = FromInfo.Create(from.GetFullMetadataName(), constructionInfos);
var to = mapping[1];
var toInfo = ToInfo.Create(to.GetFullMetadataName());
yield return(MappingInfo.Create(fromInfo, toInfo));
}
}