public MarkupTranslatorContext(XmlObject xml, SourceStringBuilder sourceStringBuilder, TypeDataStore typeStore, MarkupTranslationResult resultHolder, CancellationToken ct)
{
_sourceBuilder = sourceStringBuilder;
_xml = xml;
_typeStore = typeStore;
_result = resultHolder;
_ct = ct;
}
protected override void WriteGetMemberBlock(SourceStringBuilder g)
{
if (Property is { Length : > 0 } property)
{
g.Line(Member.Name, " = " +
"(", Member.Type.ToFullDisplayString(), ") " +
"GetNode", (OrNull ? "OrNull" : "") +
"(", ExportPropertyName, ")?.Get(" +
SyntaxFactory.Literal(property).ToString(), ");");
}
}
protected void WriteMemberNullCheck(SourceStringBuilder g, string exportMemberName)
{
g.Line("if (", Member.Name, " == null)");
g.BlockBrace(() =>
{
g.Line(
"throw new NullReferenceException($\"",
"'{((Resource)GetScript()).ResourcePath}' member '",
Member.Name,
"' is unexpectedly null in '{GetPath()}', '{this}'. Ensure '",
exportMemberName,
"' is set correctly, or set [OnReadyGet(OrNull = true)] to allow null.\");");
});
}
public static void Translate(
XmlObject xml,
TypeDataStore typeStore,
MarkupTranslationResult resultHolder,
CancellationToken ct)
{
ct.ThrowIfCancellationRequested();
if (TryGetBuilderName(xml, out var builder, out var diagnostic) == false)
{
if (diagnostic != null)
{
resultHolder.AddDiagnostic(diagnostic);
}
return;
}
if (diagnostic != null)
{
resultHolder.AddDiagnostic(diagnostic);
}
var sourceBuilder = new SourceStringBuilder(builder.NamespaceName.ToString(), builder.Name.ToString());
var context = new MarkupTranslatorContext(xml, sourceBuilder, typeStore, resultHolder, ct);
sourceBuilder.Header.AppendLine(@"// <auto-generated>
// Auto generated by a source generator.
// Generator: Elffy.Generator.MarkupTranslationGenerator
// </auto-generated>
#nullable enable");
var rootNode = xml.Root;
var rootMethod = sourceBuilder.CreateMethodBuilder(2, out _);
if (typeStore.TryGetTypeData("Elffy.UI.Control", out var rootCallerType) == false)
{
throw new NotSupportedException("not found: Elffy.UI.Control");
}
var(id, returnedType) = GenerateFactoryMethodCode(rootNode, rootCallerType, context);
if (id == SkippedMethodID || returnedType == null)
{
rootMethod.AppendLine("[global::System.Obsolete(\"The markup file was not translated to code successfully.\", true)]");
if (returnedType == null)
{
rootMethod.AppendLine($"public static async global::Cysharp.Threading.Tasks.UniTask Create()");
}
else
{
rootMethod.AppendLine($"public static async global::Cysharp.Threading.Tasks.UniTask<global::{returnedType.Name}> Create()");
}
rootMethod.AppendLine("{ throw new global::System.InvalidOperationException(\"The markup file was not translated to code successfully.\"); }");
return;
}
var unitaskT = $"global::Cysharp.Threading.Tasks.UniTask<global::{returnedType.Name}>";
rootMethod.AppendLine($@"public static async {unitaskT} CreateUI(global::Elffy.UI.Control parent)");
rootMethod.AppendLine("{");
rootMethod.IncrementIndent();
rootMethod.AppendLine("global::System.ArgumentNullException.ThrowIfNull(parent);");
rootMethod.AppendLine("var context = new Context();");
rootMethod.AppendLine("try {");
rootMethod.AppendLine($" var obj = __F{id}(ref context, parent);");
rootMethod.AppendLine(" await context.WhenAllTask();");
rootMethod.AppendLine(" return obj;");
rootMethod.AppendLine("} finally { context.Dispose(); }");
rootMethod.DecrementIndent();
rootMethod.AppendLine("}");
var source = sourceBuilder.ToString();
var result = SourceText.From(source, Encoding.UTF8);
resultHolder.SetResult(result);
}
