Migrate MapBuilder to Kotlin (#51626)

Summary:
Pull Request resolved: #51626

This just migrates the `MapBuilder` file to Kotlin.
Users on Kotlin should still use the built-in collection extensions rather than using this class that will go away at some point in the future.

Changelog:
[Internal] [Changed] -

Reviewed By: fabriziocucci

Differential Revision: D75448739

fbshipit-source-id: 2bfa24ad9bd37bd571ea4551bd9a10e848841e0a

Author: cortinico

packages/react-native/ReactAndroid/api/ReactAndroid.api

@@ -1664,23 +1664,23 @@ public final class com/facebook/react/common/LifecycleState : java/lang/Enum {
 	public static fun values ()[Lcom/facebook/react/common/LifecycleState;
 }
 
-public class com/facebook/react/common/MapBuilder {
-	public fun <init> ()V
-	public static fun builder ()Lcom/facebook/react/common/MapBuilder$Builder;
-	public static fun newHashMap ()Ljava/util/HashMap;
-	public static fun of ()Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
-	public static fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+public final class com/facebook/react/common/MapBuilder {
+	public static final field INSTANCE Lcom/facebook/react/common/MapBuilder;
+	public static final fun builder ()Lcom/facebook/react/common/MapBuilder$Builder;
+	public static final fun newHashMap ()Ljava/util/HashMap;
+	public static final fun of ()Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
+	public static final fun of (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/util/Map;
 }
 
 public final class com/facebook/react/common/MapBuilder$Builder {
-	public fun build ()Ljava/util/Map;
-	public fun put (Ljava/lang/Object;Ljava/lang/Object;)Lcom/facebook/react/common/MapBuilder$Builder;
+	public final fun build ()Ljava/util/Map;
+	public final fun put (Ljava/lang/Object;Ljava/lang/Object;)Lcom/facebook/react/common/MapBuilder$Builder;
 }
 
 public final class com/facebook/react/common/ReactConstants {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/common/MapBuilder.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.common
+
+/** Utility class for creating maps */
+@Deprecated("Use Kotlin's built-in collections extensions")
+public object MapBuilder {
+  /** Creates an instance of `HashMap` */
+  @JvmStatic public fun <K, V> newHashMap(): HashMap<K, V> = hashMapOf()
+
+  /** Returns the empty map. */
+  @JvmStatic public fun <K, V> of(): MutableMap<K, V> = newHashMap()
+
+  /** Returns map containing a single entry. */
+  @JvmStatic public fun <K, V> of(k1: K, v1: V): MutableMap<K, V> = hashMapOf(k1 to v1)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(k1: K, v1: V, k2: K, v2: V): MutableMap<K, V> = hashMapOf(k1 to v1, k2 to v2)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(k1: K, v1: V, k2: K, v2: V, k3: K, v3: V): MutableMap<K, V> =
+      hashMapOf(k1 to v1, k2 to v2, k3 to v3)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(k1: K, v1: V, k2: K, v2: V, k3: K, v3: V, k4: K, v4: V): MutableMap<K, V> =
+      hashMapOf(k1 to v1, k2 to v2, k3 to v3, k4 to v4)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(
+      k1: K,
+      v1: V,
+      k2: K,
+      v2: V,
+      k3: K,
+      v3: V,
+      k4: K,
+      v4: V,
+      k5: K,
+      v5: V
+  ): MutableMap<K, V> = hashMapOf(k1 to v1, k2 to v2, k3 to v3, k4 to v4, k5 to v5)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(
+      k1: K,
+      v1: V,
+      k2: K,
+      v2: V,
+      k3: K,
+      v3: V,
+      k4: K,
+      v4: V,
+      k5: K,
+      v5: V,
+      k6: K,
+      v6: V
+  ): MutableMap<K, V> = hashMapOf(k1 to v1, k2 to v2, k3 to v3, k4 to v4, k5 to v5, k6 to v6)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic
+  public fun <K, V> of(
+      k1: K,
+      v1: V,
+      k2: K,
+      v2: V,
+      k3: K,
+      v3: V,
+      k4: K,
+      v4: V,
+      k5: K,
+      v5: V,
+      k6: K,
+      v6: V,
+      k7: K,
+      v7: V
+  ): MutableMap<K, V> =
+      hashMapOf(k1 to v1, k2 to v2, k3 to v3, k4 to v4, k5 to v5, k6 to v6, k7 to v7)
+
+  /** Returns map containing the given entries. */
+  @JvmStatic public fun <K, V> builder(): Builder<K, V> = Builder()
+
+  public class Builder<K, V> internal constructor() {
+    private val map: MutableMap<K, V> = newHashMap()
+    private var underConstruction = true
+
+    public fun put(k: K, v: V): Builder<K, V> {
+      check(underConstruction) { "Underlying map has already been built" }
+      map[k] = v
+      return this
+    }
+
+    public fun build(): Map<K, V> {
+      check(underConstruction) { "Underlying map has already been built" }
+      underConstruction = false
+      return map
+    }
+  }
+}