From 2221c03dcbc3aeeb4809356342a3e9fa35aed241 Mon Sep 17 00:00:00 2001
From: latonz <lars@riok.ch>
Date: Tue, 5 Sep 2023 10:07:45 +0200
Subject: [PATCH] feat: Support C#12 primary constructors

---
 test/Riok.Mapperly.Tests/Mapping/CtorTest.cs  |  7 +++++++
 .../ObjectPropertyConstructorResolverTest.cs  | 21 +++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/test/Riok.Mapperly.Tests/Mapping/CtorTest.cs b/test/Riok.Mapperly.Tests/Mapping/CtorTest.cs
index 4a98082891..e7517dbcef 100644
--- a/test/Riok.Mapperly.Tests/Mapping/CtorTest.cs
+++ b/test/Riok.Mapperly.Tests/Mapping/CtorTest.cs
@@ -19,6 +19,13 @@ public void CtorCustomStruct()
         TestHelper.GenerateMapper(source).Should().HaveSingleMethodBody("return new global::A(source);");
     }
 
+    [Fact]
+    public void PrimaryCtorCustomClass()
+    {
+        var source = TestSourceBuilder.Mapping("string", "A", "class A(string x) {}");
+        TestHelper.GenerateMapper(source).Should().HaveSingleMethodBody("return new global::A(source);");
+    }
+
     [Fact]
     public void CtorMappingDisabledShouldDiagnostic()
     {
diff --git a/test/Riok.Mapperly.Tests/Mapping/ObjectPropertyConstructorResolverTest.cs b/test/Riok.Mapperly.Tests/Mapping/ObjectPropertyConstructorResolverTest.cs
index 5127610d28..d79e892eec 100644
--- a/test/Riok.Mapperly.Tests/Mapping/ObjectPropertyConstructorResolverTest.cs
+++ b/test/Riok.Mapperly.Tests/Mapping/ObjectPropertyConstructorResolverTest.cs
@@ -484,6 +484,27 @@ public void CanResolveToClassConstructorWithMapPropertyAttribute()
             );
     }
 
+    [Fact]
+    public void CanResolveToClassPrimaryConstructor()
+    {
+        var source = TestSourceBuilder.Mapping(
+            "A",
+            "B",
+            "class A(string? id, bool value) { public string? Id => id; public bool Value => value; }",
+            "class B(string? id, bool value) {}"
+        );
+
+        var result = TestHelper.GenerateMapper(source);
+        result
+            .Should()
+            .HaveSingleMethodBody(
+                """
+                var target = new global::B(source.Id, source.Value);
+                return target;
+                """
+            );
+    }
+
     [Fact]
     public void RecordToRecordNullableToNullableEnum()
     {