objectionary#2032: Generate natives

levBagryansky · Jun 16, 2023 · 0593938 · 0593938
1 parent 0cf8b5a
commit 0593938
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Showing 5 changed files with 58 additions and 23 deletions.
diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/BinarizeParseMojo.java b/eo-maven-plugin/src/main/java/org/eolang/maven/BinarizeParseMojo.java
@@ -45,7 +45,9 @@
 import org.apache.maven.plugins.annotations.Mojo;
 import org.apache.maven.plugins.annotations.Parameter;
 import org.apache.maven.plugins.annotations.ResolutionScope;
+import org.eolang.maven.footprint.FtDefault;
 import org.eolang.maven.rust_project.Names;
+import org.eolang.maven.rust_project.Native;
 import org.eolang.maven.rust_project.Project;
 import org.eolang.maven.tojos.ForeignTojo;
 import org.eolang.maven.util.Home;
@@ -141,6 +143,11 @@ public void exec() throws IOException {
                     code,
                     dependencies
                 );
+                new Native(function, "EOrust.natives").save(
+                    new FtDefault(
+                        generatedDir.toPath().resolve("EOrust").resolve("natives")
+                    )
+                );
             }
         }
         project.save();

diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/rust_project/Module.java b/eo-maven-plugin/src/main/java/org/eolang/maven/rust_project/Module.java
@@ -72,7 +72,7 @@ public void save(final Footprint footprint) throws IOException {
      */
     private String transform() {
         final String signature = String.format(
-            "#[no_mangle]%spub extern \"system\" fn Java_EOrust_EOnatives_%s_%s(_env: JNIEnv, _class: JClass,) -> jint {",
+            "#[no_mangle]%spub extern \"system\" fn Java_EOrust_natives_%s_%s(_env: JNIEnv, _class: JClass,) -> jint {",
             System.lineSeparator(),
             this.name,
             this.name

diff --git a/eo-runtime/src/test/groovy/verify.groovy → ...org/eolang/maven/rust_project/Native.java b/eo-runtime/src/test/groovy/verify.groovy → ...org/eolang/maven/rust_project/Native.java
@@ -1,6 +1,4 @@
-import java.nio.file.Path
-
-/**
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2016-2023 Objectionary.com
@@ -23,15 +21,41 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
+package org.eolang.maven.rust_project;
 
-/**
- * Entry point for running validation scripts.
- * To add new validation create new script in this folder and add it
- * to the list below.
- */
-Path tests = basedir.toPath().resolve("src").resolve("test").resolve("groovy");
-for (it in ['check-folders-numbering.groovy', 'check-all-java-classes-compiled.groovy']) {
-  def res = evaluate tests.resolve(it).toFile()
-  println String.format('Verified with %s - OK. Result: %s', it, res)
+import org.eolang.maven.footprint.Footprint;
+
+import java.io.IOException;
+
+public class Native {
+    private final String name;
+    private final String pack;
+
+    public Native(String name, String pack) {
+        this.name = name;
+        this.pack = pack;
+    }
+
+    public void save(final Footprint footprint) throws IOException {
+        footprint.save(
+            name,
+            "java",
+            () -> String.join(
+                System.lineSeparator(),
+                String.format(
+                    "package %s;",
+                    pack
+                ),
+                String.format(
+                    "public class %s {",
+                    name
+                ),
+                String.format(
+                    "public static native int %s ();",
+                    name
+                ),
+                "}"
+            )
+        );
+    }
 }
-true
diff --git a/eo-maven-plugin/src/test/java/org/eolang/maven/rust_project/ModuleTest.java b/eo-maven-plugin/src/test/java/org/eolang/maven/rust_project/ModuleTest.java
@@ -62,7 +62,7 @@ void transformsCorrectly(@TempDir final Path temp) throws Exception {
                 "use jni::sys::{jint};",
                 "use jni::JNIEnv;",
                 "#[no_mangle]",
-                "pub extern \"system\" fn Java_EOrust_EOnatives_simple_simple(_env: JNIEnv, _class: JClass,) -> jint {"
+                "pub extern \"system\" fn Java_EOrust_natives_simple_simple(_env: JNIEnv, _class: JClass,) -> jint {"
             )
         );
     }

diff --git a/eo-runtime/src/main/java/EOorg/EOeolang/EOrust.java b/eo-runtime/src/main/java/EOorg/EOeolang/EOrust.java
@@ -27,18 +27,13 @@
  */
 package EOorg.EOeolang;
 
-import EOrust.EOnatives.xhomextardis3xeoxeoxruntimextargetxeoxtest0;
-
 import java.io.ByteArrayInputStream;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.ObjectInputStream;
-import java.nio.file.Path;
+import java.lang.reflect.Method;
 import java.nio.file.Paths;
 import java.util.Base64;
 import java.util.concurrent.ConcurrentHashMap;
-
 import org.apache.commons.lang3.NotImplementedException;
 import org.apache.commons.lang3.SystemUtils;
 import org.cactoos.text.TextOf;
@@ -113,9 +108,18 @@ public EOrust(final Phi sigma) {
                 this,
                 rho ->
                 {
-                    System.out.println();
+                    final String name = names.get(
+                        rho.attr("code").get().locator().split(":")[0]
+                    );
+                    final Class Native = Class.forName(
+                        String.format(
+                            "EOrust.natives.%s",
+                            name
+                        )
+                    );
+                    final Method method = Native.getDeclaredMethod(name, null);
                     return new Data.ToPhi(
-                        (long) xhomextardis3xeoxeoxruntimextargetxeoxtest0.xhomextardis3xeoxeoxruntimextargetxeoxtest0()
+                        Long.valueOf((int) method.invoke(null))
                     );
                 }
             )