2313 universe

eo-maven-plugin/src/main/java/org/eolang/maven/rust/Native.java

@@ -46,7 +46,7 @@ public Native(final String name, final String pack) {
                     "package %s;",
                     pack
                 ),
-                "import EOorg.EOeolang.EOrust;",
+                "import org.eolang.Universe;",
                 String.format(
                     "public class %s {",
                     name
@@ -55,7 +55,7 @@ public Native(final String name, final String pack) {
                     "    public static native byte[] %s",
                     name
                 ),
-                "        (final EOrust eo);",
+                "        (final Universe universe);",
                 "}"
             )
         );

eo-maven-plugin/src/test/java/org/eolang/maven/rust/NativeTest.java

@@ -50,10 +50,10 @@ void savesCorrectly(@TempDir final Path temp) throws Exception {
             ).asString(),
             Matchers.stringContainsInOrder(
                 "package mypackage;",
-                "import EOorg.EOeolang.EOrust;",
+                "import org.eolang.Universe;",
                 "public class name {",
                 "    public static native byte[] name",
-                "        (final EOrust eo);",
+                "        (final Universe universe);",
                 "}"
                 )
         );

eo-runtime/src/main/java/EOorg/EOeolang/EOrust.java

@@ -49,6 +49,7 @@
 import org.eolang.ExFailure;
 import org.eolang.PhDefault;
 import org.eolang.Phi;
+import org.eolang.Universe;
 import org.eolang.XmirObject;
 
 /**
@@ -134,7 +135,7 @@ public EOrust(final Phi sigma) {
                             "EOrust.natives.%s",
                             name
                         )
-                    ).getDeclaredMethod(name, EOrust.class);
+                    ).getDeclaredMethod(name, Universe.class);
                     if (method.getReturnType() != byte[].class) {
                         throw new ExFailure(
                             "Return type of %s is %s, required %s",
@@ -144,65 +145,13 @@ public EOrust(final Phi sigma) {
                         );
                     }
                     return EOrust.translate(
-                        (byte[]) method.invoke(null, this)
+                        (byte[]) method.invoke(null, new Universe(rho))
                     );
                 }
             )
         );
     }
 
-    /**
-     * Finds vertex of eo object by its location.
-     * @param name Relative location of the object to find.
-     * @return Vertex of the object to find.
-     * @todo #2237:45min Implement finding by location.
-     *  Name argument is something like "^.^.some-obj".
-     *  This string must be splitted by '.' and then for
-     *  every part it is necessary to call this.attr().get()
-     * @checkstyle NonStaticMethodCheck (4 lines)
-     */
-    public int find(final String name) {
-        return 0;
-    }
-
-    /**
-     * Puts data to eo object by vertex.
-     * @param vertex Vertex off object.
-     * @param bytes Data to put.
-     * @todo #2237:45min Implement the "put" method. Now it does
-     *  nothing and created to check rust2java interaction. This
-     *  method relates to building a new eo object in rust insert.
-     * @checkstyle NonStaticMethodCheck (4 lines)
-     */
-    public void put(final int vertex, final byte[] bytes) {
-    }
-
-    /**
-     * Binds child to parent.
-     * @param parent Vertex of the parent eo object.
-     * @param child Vertex of the child eo object.
-     * @param att Name of attribute.
-     * @todo #2237:45min Implement the "bind" method. It has tp
-     *  put data to eo object by vertex. It does nothing now
-     *  but it is called from rust via jni call_method function.
-     * @checkstyle NonStaticMethodCheck (4 lines)
-     */
-    public void bind(final int parent, final int child, final String att) {
-    }
-
-    /**
-     * Copies the eo object.
-     * @param vertex Vertex of object to copy.
-     * @return Vertex of the copy.
-     * @todo #2237:45min Implement the "copy" method. Now it does
-     *  nothing and created to check rust2java interaction. This
-     *  method relates to building a new eo object in rust insert.
-     * @checkstyle NonStaticMethodCheck (4 lines)
-     */
-    public int copy(final int vertex) {
-        return vertex;
-    }
-
     /**
      * Loads names map.
      * @param src Where to load from.

eo-runtime/src/main/java/org/eolang/Phi.java

@@ -31,6 +31,9 @@
  * name would be "Object", but it's already occupied by Java. That's why
  * we call it Phi.
  *
+ * It is guaranteed that the hash codes of different Phi are different,
+ * and equal to the vertex.
+ *
  * @since 0.1
  */
 public interface Phi extends Term {

eo-runtime/src/main/java/org/eolang/Universe.java

@@ -0,0 +1,118 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016-2023 Objectionary.com
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.eolang;
+
+/**
+ * Class to manipulate eo objects within "Universe" paradigm.
+ * @since 0.30
+ */
+public class Universe {
+
+    /**
+     * Connector to eo objects.
+     */
+    private final Phi connector;
+
+    /**
+     * Ctor.
+     * @param connector Connector.
+     */
+    public Universe(final Phi connector) {
+        this.connector = connector;
+    }
+
+    /**
+     * Ctor.
+     */
+    public Universe() {
+        this(Phi.Φ);
+    }
+
+    /**
+     * Finds vertex of eo object by its location.
+     * @param name Relative location of the object to find.
+     * @return Vertex of the object to find.
+     * @todo #2237:45min Implement finding by location.
+     *  Name argument is something like "^.^.some-obj".
+     *  This string must be splitted by '.' and then for
+     *  every part it is necessary to call this.attr().get()
+     * @checkstyle NonStaticMethodCheck (4 lines)
+     */
+    public int find(final String name) {
+        return this.connector.hashCode();
+    }
+
+    /**
+     * Puts data to eo object by vertex.
+     * @param vertex Vertex off object.
+     * @param bytes Data to put.
+     * @todo #2237:45min Implement the "put" method. Now it does
+     *  nothing and created to check rust2java interaction. This
+     *  method relates to building a new eo object in rust insert.
+     * @checkstyle NonStaticMethodCheck (4 lines)
+     */
+    public void put(final int vertex, final byte[] bytes) {
+        //Empty yet.
+    }
+
+    /**
+     * Binds child to parent.
+     * @param parent Vertex of the parent eo object.
+     * @param child Vertex of the child eo object.
+     * @param att Name of attribute.
+     * @todo #2237:45min Implement the "bind" method. It has tp
+     *  put data to eo object by vertex. It does nothing now
+     *  but it is called from rust via jni call_method function.
+     * @checkstyle NonStaticMethodCheck (4 lines)
+     */
+    public void bind(final int parent, final int child, final String att) {
+        //Empty yet.
+    }
+
+    /**
+     * Copies the eo object.
+     * @param vertex Vertex of object to copy.
+     * @return Vertex of the copy.
+     * @todo #2237:45min Implement the "copy" method. Now it does
+     *  nothing and created to check rust2java interaction. This
+     *  method relates to building a new eo object in rust insert.
+     * @checkstyle NonStaticMethodCheck (4 lines)
+     */
+    public int copy(final int vertex) {
+        return vertex;
+    }
+
+    /**
+     * Dataizes the eo object by vertex and return byte array.
+     * @param vertex Vertex of eo-object.
+     * @return Raw data.
+     * @todo #2313:60min Implement the "dataize" method.
+     *  It should dataize eo object by its vertex.
+     *  This method is going to be called from rust insert
+     *  and should not be static.
+     */
+    public static byte[] dataize(final int vertex) {
+        return new byte[]{0b1111111};
+    }
+}