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Merged
JerrettDavis merged 1 commit into from
May 30, 2026
Merged

test(generators): cover domain events and sidecar #437

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68 changes: 52 additions & 16 deletions src/PatternKit.Generators/DomainEvents/DomainEventDispatcherGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -132,32 +132,68 @@ private static string GenerateSource(
sb.AppendLine();
}

sb.Append(GetAccessibility(type.DeclaredAccessibility)).Append(' ');
if (type.IsStatic)
sb.Append("static ");
else if (type.IsAbstract && type.TypeKind == TypeKind.Class)
sb.Append("abstract ");
else if (type.IsSealed && type.TypeKind == TypeKind.Class)
sb.Append("sealed ");
sb.Append("partial ").Append(type.TypeKind == TypeKind.Struct ? "struct" : "class").Append(' ').Append(type.Name).AppendLine();
sb.AppendLine("{");
sb.Append(" public static global::PatternKit.Application.DomainEvents.DomainEventDispatcher<")
var containingTypes = GetContainingTypes(type);
var indentLevel = 0;
foreach (var containingType in containingTypes)
{
AppendTypeDeclaration(sb, containingType, indentLevel);
sb.AppendLine();
sb.AppendLine(new string(' ', indentLevel * 4) + "{");
indentLevel++;
}

Comment on lines 134 to +144
AppendTypeDeclaration(sb, type, indentLevel);
sb.AppendLine();
var indent = new string(' ', indentLevel * 4);
sb.AppendLine(indent + "{");
var memberIndent = indent + " ";
var bodyIndent = memberIndent + " ";
sb.Append(memberIndent).Append("public static global::PatternKit.Application.DomainEvents.DomainEventDispatcher<")
.Append(eventBaseName).Append("> ").Append(factoryName).AppendLine("()");
sb.AppendLine(" {");
sb.Append(" var builder = global::PatternKit.Application.DomainEvents.DomainEventDispatcher<")
sb.Append(memberIndent).AppendLine("{");
sb.Append(bodyIndent).Append("var builder = global::PatternKit.Application.DomainEvents.DomainEventDispatcher<")
.Append(eventBaseName).Append(">.Create(\"").Append(Escape(dispatcherName)).AppendLine("\");");
foreach (var handler in handlers)
{
var eventTypeName = handler.EventType.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat);
sb.Append(" builder.Handle<").Append(eventTypeName).Append(">(").Append(handler.Method.Name).AppendLine(");");
sb.Append(bodyIndent).Append("builder.Handle<").Append(eventTypeName).Append(">(").Append(handler.Method.Name).AppendLine(");");
}

sb.Append(bodyIndent).AppendLine("return builder.Build();");
sb.AppendLine(memberIndent + "}");
sb.AppendLine(indent + "}");
for (var i = containingTypes.Length - 1; i >= 0; i--)
{
sb.AppendLine(new string(' ', i * 4) + "}");
}

sb.AppendLine(" return builder.Build();");
sb.AppendLine(" }");
sb.AppendLine("}");
return sb.ToString();
}

private static INamedTypeSymbol[] GetContainingTypes(INamedTypeSymbol type)
{
var containingTypes = new Stack<INamedTypeSymbol>();
for (var current = type.ContainingType; current is not null; current = current.ContainingType)
{
containingTypes.Push(current);
}

return containingTypes.ToArray();
}

private static void AppendTypeDeclaration(StringBuilder sb, INamedTypeSymbol type, int indentLevel)
{
sb.Append(new string(' ', indentLevel * 4));
sb.Append(GetAccessibility(type.DeclaredAccessibility)).Append(' ');
if (type.IsStatic)
sb.Append("static ");
else if (type.IsAbstract && type.TypeKind == TypeKind.Class)
sb.Append("abstract ");
else if (type.IsSealed && type.TypeKind == TypeKind.Class)
sb.Append("sealed ");
sb.Append("partial ").Append(type.TypeKind == TypeKind.Struct ? "struct" : "class").Append(' ').Append(type.Name);
}

private static bool IsHandler(IMethodSymbol method, INamedTypeSymbol eventType, INamedTypeSymbol eventBaseType)
=> method.IsStatic
&& !method.IsGenericMethod
Expand Down
69 changes: 53 additions & 16 deletions src/PatternKit.Generators/Sidecar/SidecarGenerator.cs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.CodeAnalysis;
Expand Down Expand Up @@ -171,29 +172,65 @@ private static string GenerateSource(INamedTypeSymbol type, INamedTypeSymbol req
sb.AppendLine();
}

var containingTypes = GetContainingTypes(type);
var indentLevel = 0;
foreach (var containingType in containingTypes)
{
AppendTypeDeclaration(sb, containingType, indentLevel);
sb.AppendLine();
sb.AppendLine(new string(' ', indentLevel * 4) + "{");
indentLevel++;
}
Comment on lines +175 to +183

AppendTypeDeclaration(sb, type, indentLevel);
sb.AppendLine();
var indent = new string(' ', indentLevel * 4);
sb.AppendLine(indent + "{");
var memberIndent = indent + " ";
var bodyIndent = memberIndent + " ";
sb.Append(memberIndent).Append("public static global::PatternKit.Cloud.Sidecar.Sidecar<")
.Append(requestTypeName).Append(", ").Append(responseTypeName).Append("> ").Append(factoryMethodName).AppendLine("()");
sb.Append(memberIndent).AppendLine("{");
sb.Append(bodyIndent).Append("return global::PatternKit.Cloud.Sidecar.Sidecar<")
.Append(requestTypeName).Append(", ").Append(responseTypeName).Append(">.Create(\"").Append(Escape(sidecarName)).AppendLine("\")");
foreach (var step in before)
sb.Append(bodyIndent).Append(" .Before(\"").Append(Escape(step.Name)).Append("\", ").Append(step.Method.Name).AppendLine(")");
foreach (var step in after)
sb.Append(bodyIndent).Append(" .After(\"").Append(Escape(step.Name)).Append("\", ").Append(step.Method.Name).AppendLine(")");
sb.Append(bodyIndent).Append(" .Handle(").Append(handlerName).AppendLine(")");
sb.Append(bodyIndent).AppendLine(" .Build();");
sb.AppendLine(memberIndent + "}");
sb.AppendLine(indent + "}");
for (var i = containingTypes.Length - 1; i >= 0; i--)
{
sb.AppendLine(new string(' ', i * 4) + "}");
}

return sb.ToString();
}

private static INamedTypeSymbol[] GetContainingTypes(INamedTypeSymbol type)
{
var containingTypes = new Stack<INamedTypeSymbol>();
for (var current = type.ContainingType; current is not null; current = current.ContainingType)
{
containingTypes.Push(current);
}

return containingTypes.ToArray();
}

private static void AppendTypeDeclaration(StringBuilder sb, INamedTypeSymbol type, int indentLevel)
{
sb.Append(new string(' ', indentLevel * 4));
sb.Append(GetAccessibility(type.DeclaredAccessibility)).Append(' ');
if (type.IsStatic)
sb.Append("static ");
else if (type.IsAbstract && type.TypeKind == TypeKind.Class)
sb.Append("abstract ");
else if (type.IsSealed && type.TypeKind == TypeKind.Class)
sb.Append("sealed ");
sb.Append("partial ").Append(type.TypeKind == TypeKind.Struct ? "struct" : "class").Append(' ').Append(type.Name).AppendLine();
sb.AppendLine("{");
sb.Append(" public static global::PatternKit.Cloud.Sidecar.Sidecar<")
.Append(requestTypeName).Append(", ").Append(responseTypeName).Append("> ").Append(factoryMethodName).AppendLine("()");
sb.AppendLine(" {");
sb.Append(" return global::PatternKit.Cloud.Sidecar.Sidecar<")
.Append(requestTypeName).Append(", ").Append(responseTypeName).Append(">.Create(\"").Append(Escape(sidecarName)).AppendLine("\")");
foreach (var step in before)
sb.Append(" .Before(\"").Append(Escape(step.Name)).Append("\", ").Append(step.Method.Name).AppendLine(")");
foreach (var step in after)
sb.Append(" .After(\"").Append(Escape(step.Name)).Append("\", ").Append(step.Method.Name).AppendLine(")");
sb.Append(" .Handle(").Append(handlerName).AppendLine(")");
sb.AppendLine(" .Build();");
sb.AppendLine(" }");
sb.AppendLine("}");
return sb.ToString();
sb.Append("partial ").Append(type.TypeKind == TypeKind.Struct ? "struct" : "class").Append(' ').Append(type.Name);
}

private static string? GetNamedString(AttributeData attribute, string name)
Expand Down
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