Add mandate enumeration.

byte-buddy-dep/src/main/java/net/bytebuddy/description/modifier/Mandate.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2014 - 2020 Rafael Winterhalter
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package net.bytebuddy.description.modifier;
+
+import org.objectweb.asm.Opcodes;
+
+/**
+ * Indicates if a member is mandated.
+ */
+public enum Mandate implements ModifierContributor.ForField, ModifierContributor.ForMethod, ModifierContributor.ForParameter {
+
+    /**
+     * Modifier for a non-mandated member. (The default modifier.)
+     */
+    PLAIN(EMPTY_MASK),
+
+    /**
+     * Modifier for a mandated member.
+     */
+    MANDATED(Opcodes.ACC_MANDATED);
+
+    /**
+     * The modifier mask for this mandate.
+     */
+    private final int mask;
+
+    /**
+     * Creates a new mandate state.
+     *
+     * @param mask The modifier mask for this mandate.
+     */
+    Mandate(int mask) {
+        this.mask = mask;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public int getMask() {
+        return mask;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public int getRange() {
+        return Opcodes.ACC_MANDATED;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isDefault() {
+        return this == PLAIN;
+    }
+
+    /**
+     * Returns {@code true} if this state is mandated.
+     *
+     * @return {@code true} if this state is mandated.
+     */
+    public boolean isMandated() {
+        return this == MANDATED;
+    }
+}

byte-buddy-dep/src/test/java/net/bytebuddy/description/modifier/MandateTest.java

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+package net.bytebuddy.description.modifier;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+import org.objectweb.asm.Opcodes;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+@RunWith(Parameterized.class)
+public class MandateTest extends AbstractModifierContributorTest {
+
+    private final boolean isMandated;
+
+    public MandateTest(ModifierContributor modifierContributor,
+                       int expectedModifier,
+                       boolean defaultModifier,
+                       boolean isMandated) {
+        super(modifierContributor, expectedModifier, defaultModifier);
+        this.isMandated = isMandated;
+    }
+
+    @Parameterized.Parameters
+    public static Collection<Object[]> data() {
+        return Arrays.asList(new Object[][]{
+                {Mandate.PLAIN, 0, true, false},
+                {Mandate.MANDATED, Opcodes.ACC_MANDATED, false, true}
+        });
+    }
+
+    @Test
+    public void testProperties() throws Exception {
+        assertThat(((Mandate) modifierContributor).isMandated(), is(isMandated));
+    }
+}