From fed57d0e61a0c7c3ae3124ae35663a40e836caf1 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 13 Sep 2026 12:50:30 +0000
Subject: [PATCH 1/2] Initial plan


From 4679242b7eaf3323d5ac72e8339407992978e36b Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 13 Sep 2026 12:52:25 +0000
Subject: [PATCH 2/2] Fix ConstructorTemplate zero-arg this() initializer
 rendering

Co-authored-by: matt-edmondson <19528727+matt-edmondson@users.noreply.github.com>
---
 CodeBlocker.Test/TemplateTests.cs            | 20 ++++++++++++++++++++
 CodeBlocker/Templates/ConstructorTemplate.cs | 10 ++++++----
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/CodeBlocker.Test/TemplateTests.cs b/CodeBlocker.Test/TemplateTests.cs
index 63dc3df..4b809ef 100644
--- a/CodeBlocker.Test/TemplateTests.cs
+++ b/CodeBlocker.Test/TemplateTests.cs
@@ -420,6 +420,26 @@ public Widget()
 			Render(constructor));
 	}
 
+	[TestMethod]
+	public void AConstructorCanChainToThisWithNoArguments()
+	{
+		ConstructorTemplate constructor = new()
+		{
+			Name = "Widget",
+			Keywords = { "public" },
+			Parameters = { new ParameterTemplate { Type = "int", Name = "count" } },
+			ChainsToThis = true,
+		};
+
+		Assert.AreEqual(
+			"""
+			public Widget(int count)
+				: this() { }
+
+			""".ReplaceLineEndings("\n"),
+			Render(constructor));
+	}
+
 	#endregion
 
 	#region OperatorTemplate
diff --git a/CodeBlocker/Templates/ConstructorTemplate.cs b/CodeBlocker/Templates/ConstructorTemplate.cs
index 92bdba7..4915a51 100644
--- a/CodeBlocker/Templates/ConstructorTemplate.cs
+++ b/CodeBlocker/Templates/ConstructorTemplate.cs
@@ -14,14 +14,16 @@ public class ConstructorTemplate : MemberTemplate
 	public Collection<ParameterTemplate> Parameters { get; } = [];
 
 	/// <summary>
-	/// Gets the arguments passed to the base constructor, written verbatim. Empty omits the
-	/// <c>: base(...)</c> clause entirely.
+	/// Gets the arguments passed to the constructor initialiser, written verbatim. Empty omits the
+	/// clause when <see cref="ChainsToThis"/> is <see langword="false"/> and emits <c>: this()</c>
+	/// when <see cref="ChainsToThis"/> is <see langword="true"/>.
 	/// </summary>
 	public Collection<string> BaseParameters { get; } = [];
 
 	/// <summary>
 	/// Gets or sets a value indicating whether the initialiser chains to <c>this</c> rather than
-	/// <c>base</c>.
+	/// <c>base</c>. When <see langword="true"/>, an initialiser is always emitted, including the
+	/// zero-argument form <c>: this()</c>.
 	/// </summary>
 	public bool ChainsToThis { get; set; }
 
@@ -49,7 +51,7 @@ public override void WriteTo(CodeBlocker codeBlocker)
 
 	private void WriteInitialiserTo(CodeBlocker codeBlocker)
 	{
-		if (BaseParameters.Count == 0)
+		if (!ChainsToThis && BaseParameters.Count == 0)
 		{
 			return;
 		}