From 8d9f0820bd0fc7d46e2bed813a330356a8077c66 Mon Sep 17 00:00:00 2001
From: Dagger Team <java-team-github-bot@google.com>
Date: Thu, 19 Sep 2024 15:55:33 -0700
Subject: [PATCH] Add a test for Kotlin nullable field injection.

PiperOrigin-RevId: 676595690
---
 .../codegen/MembersInjectionTest.java         | 22 ++++++++
 ..._DEFAULT_MODE_test.MyClass_MembersInjector | 55 +++++++++++++++++++
 ...AST_INIT_MODE_test.MyClass_MembersInjector | 55 +++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_DEFAULT_MODE_test.MyClass_MembersInjector
 create mode 100644 javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_FAST_INIT_MODE_test.MyClass_MembersInjector

diff --git a/javatests/dagger/internal/codegen/MembersInjectionTest.java b/javatests/dagger/internal/codegen/MembersInjectionTest.java
index b5216849d33..e9c65785b71 100644
--- a/javatests/dagger/internal/codegen/MembersInjectionTest.java
+++ b/javatests/dagger/internal/codegen/MembersInjectionTest.java
@@ -1336,4 +1336,26 @@ public void testMembersInjectionBindingSharesInjectMethodsWithProvisionBinding()
               subject.generatedSource(goldenFileRule.goldenSource("test/DaggerMyComponent"));
             });
   }
+
+  @Test
+  public void kotlinNullableFieldInjection() {
+    Source file =
+        CompilerTests.kotlinSource(
+            "MyClass.kt",
+            "package test;",
+            "",
+            "import javax.inject.Inject;",
+            "",
+            "class MyClass @Inject constructor() {",
+            "  @JvmField @Inject var nullableString: String? = null",
+            "  @JvmField @Inject var nullableObject: Any? = null",
+            "}");
+    CompilerTests.daggerCompiler(file)
+        .withProcessingOptions(compilerMode.processorOptions())
+        .compile(
+            subject -> {
+              subject.hasErrorCount(0);
+              subject.generatedSource(goldenFileRule.goldenSource("test/MyClass_MembersInjector"));
+            });
+  }
 }
diff --git a/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_DEFAULT_MODE_test.MyClass_MembersInjector b/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_DEFAULT_MODE_test.MyClass_MembersInjector
new file mode 100644
index 00000000000..f1600530234
--- /dev/null
+++ b/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_DEFAULT_MODE_test.MyClass_MembersInjector
@@ -0,0 +1,55 @@
+package test;
+
+import dagger.MembersInjector;
+import dagger.internal.DaggerGenerated;
+import dagger.internal.InjectedFieldSignature;
+import dagger.internal.QualifierMetadata;
+import javax.annotation.processing.Generated;
+import javax.inject.Provider;
+
+@QualifierMetadata
+@DaggerGenerated
+@Generated(
+    value = "dagger.internal.codegen.ComponentProcessor",
+    comments = "https://dagger.dev"
+)
+@SuppressWarnings({
+    "unchecked",
+    "rawtypes",
+    "KotlinInternal",
+    "KotlinInternalInJava",
+    "cast",
+    "deprecation"
+})
+public final class MyClass_MembersInjector implements MembersInjector<MyClass> {
+  private final Provider<String> nullableStringProvider;
+
+  private final Provider<Object> nullableObjectProvider;
+
+  public MyClass_MembersInjector(Provider<String> nullableStringProvider,
+      Provider<Object> nullableObjectProvider) {
+    this.nullableStringProvider = nullableStringProvider;
+    this.nullableObjectProvider = nullableObjectProvider;
+  }
+
+  public static MembersInjector<MyClass> create(Provider<String> nullableStringProvider,
+      Provider<Object> nullableObjectProvider) {
+    return new MyClass_MembersInjector(nullableStringProvider, nullableObjectProvider);
+  }
+
+  @Override
+  public void injectMembers(MyClass instance) {
+    injectNullableString(instance, nullableStringProvider.get());
+    injectNullableObject(instance, nullableObjectProvider.get());
+  }
+
+  @InjectedFieldSignature("test.MyClass.nullableString")
+  public static void injectNullableString(MyClass instance, String nullableString) {
+    instance.nullableString = nullableString;
+  }
+
+  @InjectedFieldSignature("test.MyClass.nullableObject")
+  public static void injectNullableObject(MyClass instance, Object nullableObject) {
+    instance.nullableObject = nullableObject;
+  }
+}
diff --git a/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_FAST_INIT_MODE_test.MyClass_MembersInjector b/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_FAST_INIT_MODE_test.MyClass_MembersInjector
new file mode 100644
index 00000000000..f1600530234
--- /dev/null
+++ b/javatests/dagger/internal/codegen/goldens/MembersInjectionTest_kotlinNullableFieldInjection_FAST_INIT_MODE_test.MyClass_MembersInjector
@@ -0,0 +1,55 @@
+package test;
+
+import dagger.MembersInjector;
+import dagger.internal.DaggerGenerated;
+import dagger.internal.InjectedFieldSignature;
+import dagger.internal.QualifierMetadata;
+import javax.annotation.processing.Generated;
+import javax.inject.Provider;
+
+@QualifierMetadata
+@DaggerGenerated
+@Generated(
+    value = "dagger.internal.codegen.ComponentProcessor",
+    comments = "https://dagger.dev"
+)
+@SuppressWarnings({
+    "unchecked",
+    "rawtypes",
+    "KotlinInternal",
+    "KotlinInternalInJava",
+    "cast",
+    "deprecation"
+})
+public final class MyClass_MembersInjector implements MembersInjector<MyClass> {
+  private final Provider<String> nullableStringProvider;
+
+  private final Provider<Object> nullableObjectProvider;
+
+  public MyClass_MembersInjector(Provider<String> nullableStringProvider,
+      Provider<Object> nullableObjectProvider) {
+    this.nullableStringProvider = nullableStringProvider;
+    this.nullableObjectProvider = nullableObjectProvider;
+  }
+
+  public static MembersInjector<MyClass> create(Provider<String> nullableStringProvider,
+      Provider<Object> nullableObjectProvider) {
+    return new MyClass_MembersInjector(nullableStringProvider, nullableObjectProvider);
+  }
+
+  @Override
+  public void injectMembers(MyClass instance) {
+    injectNullableString(instance, nullableStringProvider.get());
+    injectNullableObject(instance, nullableObjectProvider.get());
+  }
+
+  @InjectedFieldSignature("test.MyClass.nullableString")
+  public static void injectNullableString(MyClass instance, String nullableString) {
+    instance.nullableString = nullableString;
+  }
+
+  @InjectedFieldSignature("test.MyClass.nullableObject")
+  public static void injectNullableObject(MyClass instance, Object nullableObject) {
+    instance.nullableObject = nullableObject;
+  }
+}