private static SourceText Build(INamedTypeSymbol source, INamedTypeSymbol destination, ImmutableArray <string> propertyNames,
MappingContext context, Compilation compilation, ConfigurationValues configurationValues)
{
using var writer = new StringWriter();
using var indentWriter = new IndentedTextWriter(writer,
configurationValues.IndentStyle == IndentStyle.Tab ? "\t" : new string (' ', (int)configurationValues.IndentSize));
var namespaces = new NamespaceGatherer();
var emittedNamespace = false;
if (context.ContainingNamespaceKind != ContainingNamespaceKind.Global)
{
if (context.ContainingNamespaceKind == ContainingNamespaceKind.Source)
{
if (source.ContainingNamespace.IsGlobalNamespace ||
!source.ContainingNamespace.Contains(destination.ContainingNamespace))
{
namespaces.Add(destination.ContainingNamespace);
}
if (!source.ContainingNamespace.IsGlobalNamespace)
{
indentWriter.WriteLine($"namespace {source.ContainingNamespace.ToDisplayString()}");
indentWriter.WriteLine("{");
indentWriter.Indent++;
emittedNamespace = true;
}
}
else if (context.ContainingNamespaceKind == ContainingNamespaceKind.Destination)
{
if (destination.ContainingNamespace.IsGlobalNamespace ||
!destination.ContainingNamespace.Contains(source.ContainingNamespace))
{
namespaces.Add(source.ContainingNamespace);
}
if (!destination.ContainingNamespace.IsGlobalNamespace)
{
indentWriter.WriteLine($"namespace {destination.ContainingNamespace.ToDisplayString()}");
indentWriter.WriteLine("{");
indentWriter.Indent++;
emittedNamespace = true;
}
}
}
else
{
namespaces.Add(source.ContainingNamespace);
namespaces.Add(destination.ContainingNamespace);
}
MappingBuilder.BuildType(source, destination, propertyNames, compilation, indentWriter, namespaces);
if (emittedNamespace)
{
indentWriter.Indent--;
indentWriter.WriteLine("}");
}
var code = namespaces.Values.Count > 0 ?
string.Join(Environment.NewLine,
string.Join(Environment.NewLine, namespaces.Values.Select(_ => $"using {_};")),
string.Empty, "#nullable enable", string.Empty, writer.ToString()) :
string.Join(Environment.NewLine, "#nullable enable", string.Empty, writer.ToString());
return(SourceText.From(code, Encoding.UTF8));
}
