.github/workflows/codecov.yaml

@@ -14,7 +14,7 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: 11
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: maven-${{ hashFiles('**/pom.xml') }}

.github/workflows/maven.test.yaml

@@ -21,7 +21,7 @@ jobs:
         with:
           distribution: 'zulu'
           java-version: ${{ matrix.java }}
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-jdk-${{ matrix.java }}-maven-${{ hashFiles('**/pom.xml') }}

.github/workflows/site.yaml

@@ -13,7 +13,7 @@ jobs:
         with:
           distribution: 'zulu'
           java-version: 11
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         with:
           path: ~/.m2/repository
           key: ${{ runner.os }}-jdk-${{ matrix.java }}-maven-${{ hashFiles('**/pom.xml') }}

README.md

@@ -70,7 +70,7 @@ Another way to use the plugin is to add it directly to your `pom.xml` file:
 <plugin>
   <groupId>org.eolang</groupId>
   <artifactId>opeo-maven-plugin</artifactId>
-  <version>0.0.5</version>
+  <version>0.1.3</version>
   <executions>
     <execution>
       <id>opeo-decompile</id>

pom.xml

@@ -132,12 +132,12 @@ SOFTWARE.
     <dependency>
       <groupId>org.eolang</groupId>
       <artifactId>eo-parser</artifactId>
-      <version>0.35.0</version>
+      <version>0.35.1</version>
     </dependency>
     <dependency>
       <groupId>org.eolang</groupId>
       <artifactId>jeo-maven-plugin</artifactId>
-      <version>0.2.16</version>
+      <version>0.2.18</version>
     </dependency>
     <dependency>
       <groupId>com.jcabi</groupId>
@@ -295,7 +295,7 @@ SOFTWARE.
                         <limit>
                           <counter>COMPLEXITY</counter>
                           <value>COVEREDRATIO</value>
-                          <minimum>0.73</minimum>
+                          <minimum>0.71</minimum>
                         </limit>
                         <limit>
                           <counter>METHOD</counter>

src/it/benchmark/pom.xml

@@ -43,7 +43,7 @@ SOFTWARE.
       <plugin>
         <groupId>org.eolang</groupId>
         <artifactId>jeo-maven-plugin</artifactId>
-        <version>0.2.16</version>
+        <version>0.2.18</version>
         <executions>
           <execution>
             <id>bytecode-to-eo</id>
@@ -69,6 +69,27 @@ SOFTWARE.
             <goals>
               <goal>compile</goal>
             </goals>
+            <configuration>
+              <outputDir>opeo-compile</outputDir>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>3.1.1</version>
+        <executions>
+          <execution>
+            <id>eo-to-bytecode</id>
+            <phase>process-classes</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+              <executable>mvn</executable>
+              <commandlineArgs>org.eolang:jeo-maven-plugin:0.2.18:assemble -e -DsourcesDir=opeo-compile</commandlineArgs>
+            </configuration>
           </execution>
         </executions>
       </plugin>

src/it/decompile-compile/pom.xml

@@ -50,12 +50,31 @@ SOFTWARE.
               <goal>decompile</goal>
             </goals>
           </execution>
+          <execution>
+            <id>opeo-decompile-to-other-dir</id>
+            <goals>
+              <goal>decompile</goal>
+            </goals>
+            <configuration>
+              <outputDir>${project.build.directory}/generated-sources/opeo-xmir-second-try</outputDir>
+            </configuration>
+          </execution>
           <execution>
             <id>opeo-compile</id>
             <goals>
               <goal>compile</goal>
             </goals>
           </execution>
+          <execution>
+            <id>opeo-compile-from-other-dir</id>
+            <goals>
+              <goal>compile</goal>
+            </goals>
+            <configuration>
+              <sourceDir>${project.build.directory}/generated-sources/opeo-xmir-second-try</sourceDir>
+              <outputDir>${project.build.directory}/generated-sources/jeo-xmir-second-try</outputDir>
+            </configuration>
+          </execution>
         </executions>
       </plugin>
     </plugins>

src/it/decompile-compile/target/generated-sources/xmir/org/eolang/jeo/Bar.xmir → src/it/decompile-compile/target/generated-sources/jeo-xmir/org/eolang/jeo/Bar.xmir

@@ -30,14 +30,14 @@
       <o abstract="" name="j$Bar">
          <o base="int" data="bytes" name="access">00 00 00 00 00 00 00 21</o>
          <o base="string" data="bytes" name="supername">6A 61 76 61 2F 6C 61 6E 67 2F 4F 62 6A 65 63 74</o>
-         <o base="tuple" data="tuple" name="interfaces"/>
+         <o base="tuple" star="" name="interfaces"/>
          <o abstract="" name="new">
             <o base="int" data="bytes" name="access">00 00 00 00 00 00 00 01</o>
             <o base="string" data="bytes" name="descriptor">28 29 56</o>
             <o base="string" data="bytes" name="signature"/>
-            <o base="tuple" data="tuple" name="exceptions"/>
+            <o base="tuple" star="" name="exceptions"/>
             <o base="seq" name="@">
-               <o base="tuple">
+               <o base="tuple" star="">
                   <o base="label">
                      <o base="string" data="bytes">38 63 33 33 31 33 39 37 2D 32 35 39 35 2D 34 66 35 64 2D 38 65 62 30 2D 33 62 30 63 34 62 35 34 36 35 66 32</o>
                   </o>
@@ -64,10 +64,10 @@
             <o base="int" data="bytes" name="access">00 00 00 00 00 00 00 01</o>
             <o base="string" data="bytes" name="descriptor">28 49 29 49</o>
             <o base="string" data="bytes" name="signature"/>
-            <o base="tuple" data="tuple" name="exceptions"/>
+            <o base="tuple" star="" name="exceptions"/>
             <o abstract="" name="arg__I__0"/>
             <o base="seq" name="@">
-               <o base="tuple">
+               <o base="tuple" star="">
                   <o base="label">
                      <o base="string" data="bytes">62 39 63 64 62 64 63 65 2D 38 35 38 65 2D 34 30 36 32 2D 61 38 39 30 2D 62 32 65 34 30 62 34 36 31 36 61 37</o>
                   </o>

src/it/decompile-compile/verify.groovy

@@ -33,6 +33,11 @@ assert log.contains("Compiling EO sources from")
 assert log.contains("Saving new compiled EO sources to")
 assert log.contains("Compiled")
 assert log.contains("Compiled 1 sources")
+// Check compiled files.
+assert new File(basedir, 'target/generated-sources/jeo-xmir').exists()
+assert new File(basedir, 'target/generated-sources/jeo-xmir-second-try').exists()
+assert new File(basedir, 'target/generated-sources/opeo-xmir').exists()
+assert new File(basedir, 'target/generated-sources/opeo-xmir-second-try').exists()
 // Check success.
 assert log.contains("BUILD SUCCESS")
 

src/main/java/org/eolang/opeo/CompileMojo.java

@@ -41,14 +41,36 @@
 public final class CompileMojo extends AbstractMojo {
 
     /**
-     * Project default target directory.
-     * @since 0.1.0
+     * Source directory.
+     * Where to take opeo xmir from.
+     *
+     * @since 0.2.0
+     * @checkstyle MemberNameCheck (6 lines)
      */
-    @Parameter(defaultValue = "${project.build.directory}/generated-sources")
-    private File generated;
+    @Parameter(
+        property = "opeo.compile.sourcesDir",
+        defaultValue = "${project.build.directory}/generated-sources/opeo-xmir"
+    )
+    private File sourcesDir;
+
+    /**
+     * Target directory.
+     * Where to save jeo representations to.
+     *
+     * @since 0.2.0
+     * @checkstyle MemberNameCheck (6 lines)
+     */
+    @Parameter(
+        property = "opeo.compile.outputDir",
+        defaultValue = "${project.build.directory}/generated-sources/jeo-xmir"
+    )
+    private File outputDir;
 
     @Override
     public void execute() {
-        new Compiler(this.generated).compile();
+        new Compiler(
+            this.sourcesDir.toPath(),
+            this.outputDir.toPath()
+        ).compile();
     }
 }

src/main/java/org/eolang/opeo/DecompileMojo.java

@@ -41,14 +41,33 @@
 public final class DecompileMojo extends AbstractMojo {
 
     /**
-     * Project default target directory.
-     * @since 0.1.0
+     * Source directory.
+     * Where to take jeo xmir from.
+     *
+     * @since 0.2.0
+     * @checkstyle MemberNameCheck (6 lines)
      */
-    @Parameter(defaultValue = "${project.build.directory}/generated-sources")
-    private File generated;
+    @Parameter(
+        property = "opeo.decompile.sourcesDir",
+        defaultValue = "${project.build.directory}/generated-sources/jeo-xmir"
+    )
+    private File sourcesDir;
+
+    /**
+     * Target directory.
+     * Where to save opeo decompiler representations to.
+     *
+     * @since 0.2.0
+     * @checkstyle MemberNameCheck (6 lines)
+     */
+    @Parameter(
+        property = "opeo.decompile.outputDir",
+        defaultValue = "${project.build.directory}/generated-sources/opeo-xmir"
+    )
+    private File outputDir;
 
     @Override
     public void execute() {
-        new Decompiler(this.generated).decompile();
+        new Decompiler(this.sourcesDir.toPath(), this.outputDir.toPath()).decompile();
     }
 }

src/main/java/org/eolang/opeo/ast/Attributes.java

@@ -27,6 +27,7 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.stream.Collectors;
+import lombok.EqualsAndHashCode;
 import org.cactoos.map.MapEntry;
 
 /**
@@ -35,6 +36,7 @@
  * @since 0.1
  */
 @SuppressWarnings("PMD.TooManyMethods")
+@EqualsAndHashCode
 public final class Attributes {
 
     /**

src/main/java/org/eolang/opeo/ast/Constructor.java

@@ -94,7 +94,7 @@ public List<AstNode> opcodes() {
         res.add(new Opcode(Opcodes.NEW, this.type));
         res.add(new Opcode(Opcodes.DUP));
         this.arguments.stream().map(AstNode::opcodes).forEach(res::addAll);
-        res.add(new Opcode(Opcodes.INVOKESPECIAL, this.type, "<init>", "V()"));
+        res.add(new Opcode(Opcodes.INVOKESPECIAL, this.type, "<init>", "()V"));
         return res;
     }
 

src/main/java/org/eolang/opeo/ast/Opcode.java

@@ -28,10 +28,7 @@
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 import org.eolang.jeo.representation.directives.DirectivesInstruction;
-import org.eolang.parser.XMIR;
 import org.xembly.Directive;
-import org.xembly.Transformers;
-import org.xembly.Xembler;
 
 /**
  * Opcode output node.
@@ -105,7 +102,7 @@ public Opcode(final int bytecode, final List<Object> operands, final boolean cou
 
     @Override
     public String print() {
-        return new XMIR(new Xembler(this.toXmir(), new Transformers.Node()).xmlQuietly()).toEO();
+        return "opcode";
     }
 
     @Override

src/main/java/org/eolang/opeo/ast/Root.java

@@ -69,7 +69,7 @@ public Iterable<Directive> toXmir() {
             result = Collections.emptyList();
         } else {
             final Directives directives = new Directives();
-            directives.add("o").attr("base", "tuple");
+            directives.add("o").attr("base", "tuple").attr("star", "");
             this.children.stream().map(AstNode::toXmir).forEach(directives::append);
             directives.up();
             result = directives;