Migrate YogaValue to Kotlin (#1838)

Summary:
Migrate com.facebook.yoga.YogaValue to Kotlin.

Pull Request resolved: https://github.com/facebook/yoga/pull/1838

Test Plan:
RN
```sh
yarn android
yarn test-android
```

Yoga
```sh
./gradlew :yoga:assembleDebug
```

Reviewed By: rshest

Differential Revision: D79897668

Pulled By: cortinico

fbshipit-source-id: dffe2b29087c35e4797f46dea756c51f841590d8

java/com/facebook/yoga/YogaValue.java

@@ -1,80 +0,0 @@
-/*
- * 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.yoga;
-
-public class YogaValue {
-  static final YogaValue UNDEFINED = new YogaValue(YogaConstants.UNDEFINED, YogaUnit.UNDEFINED);
-  static final YogaValue ZERO = new YogaValue(0, YogaUnit.POINT);
-  static final YogaValue AUTO = new YogaValue(YogaConstants.UNDEFINED, YogaUnit.AUTO);
-
-  public final float value;
-  public final YogaUnit unit;
-
-  public YogaValue(float value, YogaUnit unit) {
-    this.value = value;
-    this.unit = unit;
-  }
-
-  YogaValue(float value, int unit) {
-    this(value, YogaUnit.fromInt(unit));
-  }
-
-  @Override
-  public boolean equals(Object other) {
-    if (other instanceof YogaValue) {
-      final YogaValue otherValue = (YogaValue) other;
-      if (unit == otherValue.unit) {
-        return unit == YogaUnit.UNDEFINED
-            || unit == YogaUnit.AUTO
-            || Float.compare(value, otherValue.value) == 0;
-      }
-    }
-    return false;
-  }
-
-  @Override
-  public int hashCode() {
-    return Float.floatToIntBits(value) + unit.intValue();
-  }
-
-  @Override
-  public String toString() {
-    switch (unit) {
-      case UNDEFINED:
-        return "undefined";
-      case POINT:
-        return Float.toString(value);
-      case PERCENT:
-        return value + "%";
-      case AUTO:
-        return "auto";
-      default:
-        throw new IllegalStateException();
-    }
-  }
-
-  public static YogaValue parse(String s) {
-    if (s == null) {
-      return null;
-    }
-
-    if ("undefined".equals(s)) {
-      return UNDEFINED;
-    }
-
-    if ("auto".equals(s)) {
-      return AUTO;
-    }
-
-    if (s.endsWith("%")) {
-      return new YogaValue(Float.parseFloat(s.substring(0, s.length() - 1)), YogaUnit.PERCENT);
-    }
-
-    return new YogaValue(Float.parseFloat(s), YogaUnit.POINT);
-  }
-}

java/com/facebook/yoga/YogaValue.kt

@@ -0,0 +1,66 @@
+/*
+ * 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.yoga
+
+public class YogaValue
+public constructor(@JvmField public val value: Float, @JvmField public val unit: YogaUnit) {
+  internal constructor(value: Float, unit: Int) : this(value, YogaUnit.fromInt(unit))
+
+  override fun equals(other: Any?): Boolean {
+    if (other is YogaValue) {
+      val otherValue = other
+      if (unit == otherValue.unit) {
+        return unit == YogaUnit.UNDEFINED ||
+            unit == YogaUnit.AUTO ||
+            value.compareTo(otherValue.value) == 0
+      }
+    }
+    return false
+  }
+
+  override fun hashCode(): Int = java.lang.Float.floatToIntBits(value) + unit.intValue()
+
+  override fun toString(): String =
+      when (unit) {
+        YogaUnit.UNDEFINED -> "undefined"
+        YogaUnit.POINT -> value.toString()
+        YogaUnit.PERCENT -> "$value%"
+        YogaUnit.AUTO -> "auto"
+        else -> throw IllegalStateException()
+      }
+
+  public companion object {
+    @JvmField
+    public val UNDEFINED: YogaValue = YogaValue(YogaConstants.UNDEFINED, YogaUnit.UNDEFINED)
+
+    @JvmField public val ZERO: YogaValue = YogaValue(0f, YogaUnit.POINT)
+
+    @JvmField public val AUTO: YogaValue = YogaValue(YogaConstants.UNDEFINED, YogaUnit.AUTO)
+
+    @JvmStatic
+    public fun parse(s: String?): YogaValue? {
+      if (s == null) {
+        return null
+      }
+
+      if ("undefined" == s) {
+        return UNDEFINED
+      }
+
+      if ("auto" == s) {
+        return AUTO
+      }
+
+      if (s.endsWith("%")) {
+        return YogaValue(s.substring(0, s.length - 1).toFloat(), YogaUnit.PERCENT)
+      }
+
+      return YogaValue(s.toFloat(), YogaUnit.POINT)
+    }
+  }
+}