jol

Author: theshadowco

build.gradle.kts

@@ -80,6 +80,9 @@ dependencies {
     // логирование
     testImplementation("org.slf4j", "slf4j-reload4j", "2.1.0-alpha1")
 
+    // jol
+    testImplementation("org.openjdk.jol", "jol-core", "0.16")
+
     // бенчмарк
     jmh("org.openjdk.jmh:jmh-core:1.37")
     jmhAnnotationProcessor("org.openjdk.jmh:jmh-generator-annprocess:1.37")

src/test/java/com/github/_1c_syntax/jol/MemoryAnalyze.java

@@ -0,0 +1,34 @@
+/*
+ * This file is a part of MDClasses.
+ *
+ * Copyright (c) 2019 - 2025
+ * Tymko Oleg <olegtymko@yandex.ru>, Maximov Valery <maximovvalery@gmail.com> and contributors
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ *
+ * MDClasses is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3.0 of the License, or (at your option) any later version.
+ *
+ * MDClasses is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with MDClasses.
+ */
+package com.github._1c_syntax.jol;
+
+import com.github._1c_syntax.jol.memory.MemoryAnalyzer;
+
+public class MemoryAnalyze {
+  public static void main(String[] args) {
+    var results = MemoryAnalyzer.analyzeClasses(
+      "com.github._1c_syntax.bsl.mdo",
+      "com.github._1c_syntax.bsl.mdclasses"
+    );
+    MemoryAnalyzer.printAnalysisReport(results);
+  }
+}

src/test/java/com/github/_1c_syntax/jol/memory/AnalysisResult.java

@@ -0,0 +1,54 @@
+/*
+ * This file is a part of MDClasses.
+ *
+ * Copyright (c) 2019 - 2025
+ * Tymko Oleg <olegtymko@yandex.ru>, Maximov Valery <maximovvalery@gmail.com> and contributors
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ *
+ * MDClasses is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3.0 of the License, or (at your option) any later version.
+ *
+ * MDClasses is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with MDClasses.
+ */
+package com.github._1c_syntax.jol.memory;
+
+import lombok.Builder;
+import lombok.Value;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+@Value
+@Builder
+public class AnalysisResult {
+  String className;
+  String simpleClassName;
+  long instanceSize;
+  long totalSize;
+  Map<String, Long> fieldSizes;
+  List<FieldAlignmentIssue> alignmentIssues;
+  int wastedBytes;
+  double alignmentEfficiency;
+  List<String> optimizationSuggestions;
+  String error;
+
+  public static AnalysisResult error(String className, String error) {
+    return builder()
+      .className(className)
+      .error(error)
+      .alignmentIssues(Collections.emptyList())
+      .optimizationSuggestions(Collections.emptyList())
+      .fieldSizes(Collections.emptyMap())
+      .build();
+  }
+}

src/test/java/com/github/_1c_syntax/jol/memory/FieldAlignmentIssue.java

@@ -0,0 +1,28 @@
+/*
+ * This file is a part of MDClasses.
+ *
+ * Copyright (c) 2019 - 2025
+ * Tymko Oleg <olegtymko@yandex.ru>, Maximov Valery <maximovvalery@gmail.com> and contributors
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ *
+ * MDClasses is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3.0 of the License, or (at your option) any later version.
+ *
+ * MDClasses is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with MDClasses.
+ */
+package com.github._1c_syntax.jol.memory;
+
+/**
+ * Проблема выравнивания поля
+ */
+record FieldAlignmentIssue(int position, long paddingSize, String description) {
+}