[GR-57998] Remove ComputedValueField and ReadableJavaField.

substratevm/src/com.oracle.svm.core.foreign/src/com/oracle/svm/core/foreign/Target_jdk_internal_foreign_Utils_BaseAndScale.java

@@ -24,11 +24,12 @@
  */
 package com.oracle.svm.core.foreign;
 
+import org.graalvm.nativeimage.hosted.FieldValueTransformer;
+
 import com.oracle.svm.core.annotate.Alias;
 import com.oracle.svm.core.annotate.RecomputeFieldValue;
 import com.oracle.svm.core.annotate.TargetClass;
 import com.oracle.svm.core.config.ConfigurationValues;
-import com.oracle.svm.core.fieldvaluetransformer.FieldValueTransformerWithAvailability;
 import com.oracle.svm.core.util.VMError;
 
 import jdk.internal.foreign.Utils;
@@ -41,12 +42,7 @@ final class Target_jdk_internal_foreign_Utils_BaseAndScale {
     int base;
 }
 
-final class BaseFieldRecomputer implements FieldValueTransformerWithAvailability {
-
-    @Override
-    public ValueAvailability valueAvailability() {
-        return ValueAvailability.BeforeAnalysis;
-    }
+final class BaseFieldRecomputer implements FieldValueTransformer {
 
     @Override
     public Object transform(Object receiver, Object originalValue) {

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/ArrayBaseOffsetFieldValueTransformer.java

@@ -26,20 +26,18 @@
 
 import org.graalvm.nativeimage.hosted.FieldValueTransformer;
 
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
 import com.oracle.svm.core.config.ConfigurationValues;
 
 import jdk.vm.ci.meta.JavaKind;
 
-public final class ArrayBaseOffsetFieldValueTransformer extends BoxingTransformer implements FieldValueTransformer {
-    private final Class<?> targetClass;
-
-    public ArrayBaseOffsetFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) {
-        super(returnKind);
-        this.targetClass = targetClass;
-    }
+/**
+ * Implements the field value transformation semantics of {@link Kind#ArrayBaseOffset}.
+ */
+public record ArrayBaseOffsetFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) implements FieldValueTransformer {
 
     @Override
     public Object transform(Object receiver, Object originalValue) {
-        return box(ConfigurationValues.getObjectLayout().getArrayBaseOffset(JavaKind.fromJavaClass(targetClass.getComponentType())));
+        return FieldOffsetFieldValueTransformer.box(returnKind, ConfigurationValues.getObjectLayout().getArrayBaseOffset(JavaKind.fromJavaClass(targetClass.getComponentType())));
     }
 }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/ArrayIndexScaleFieldValueTransformer.java

@@ -26,20 +26,18 @@
 
 import org.graalvm.nativeimage.hosted.FieldValueTransformer;
 
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
 import com.oracle.svm.core.config.ConfigurationValues;
 
 import jdk.vm.ci.meta.JavaKind;
 
-public final class ArrayIndexScaleFieldValueTransformer extends BoxingTransformer implements FieldValueTransformer {
-    private final Class<?> targetClass;
-
-    public ArrayIndexScaleFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) {
-        super(returnKind);
-        this.targetClass = targetClass;
-    }
+/**
+ * Implements the field value transformation semantics of {@link Kind#ArrayIndexScale}.
+ */
+public record ArrayIndexScaleFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) implements FieldValueTransformer {
 
     @Override
     public Object transform(Object receiver, Object originalValue) {
-        return box(ConfigurationValues.getObjectLayout().getArrayIndexScale(JavaKind.fromJavaClass(targetClass.getComponentType())));
+        return FieldOffsetFieldValueTransformer.box(returnKind, ConfigurationValues.getObjectLayout().getArrayIndexScale(JavaKind.fromJavaClass(targetClass.getComponentType())));
     }
 }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/ArrayIndexShiftFieldValueTransformer.java

@@ -26,20 +26,18 @@
 
 import org.graalvm.nativeimage.hosted.FieldValueTransformer;
 
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
 import com.oracle.svm.core.config.ConfigurationValues;
 
 import jdk.vm.ci.meta.JavaKind;
 
-public final class ArrayIndexShiftFieldValueTransformer extends BoxingTransformer implements FieldValueTransformer {
-    private final Class<?> targetClass;
-
-    public ArrayIndexShiftFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) {
-        super(returnKind);
-        this.targetClass = targetClass;
-    }
+/**
+ * Implements the field value transformation semantics of {@link Kind#ArrayIndexShift}.
+ */
+public record ArrayIndexShiftFieldValueTransformer(Class<?> targetClass, JavaKind returnKind) implements FieldValueTransformer {
 
     @Override
     public Object transform(Object receiver, Object originalValue) {
-        return box(ConfigurationValues.getObjectLayout().getArrayIndexShift(JavaKind.fromJavaClass(targetClass.getComponentType())));
+        return FieldOffsetFieldValueTransformer.box(returnKind, ConfigurationValues.getObjectLayout().getArrayIndexShift(JavaKind.fromJavaClass(targetClass.getComponentType())));
     }
 }

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/ConstantValueFieldValueTransformer.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2024, 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.fieldvaluetransformer;
+
+import org.graalvm.nativeimage.hosted.FieldValueTransformer;
+
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
+import com.oracle.svm.core.util.VMError;
+
+import jdk.vm.ci.meta.ResolvedJavaField;
+
+/**
+ * Sets the field to the provided constant value.
+ *
+ * When that value is the {@link #defaultValueForField default value for the field}, this
+ * transformer implements the field value transformation semantics of {@link Kind#Reset}.
+ */
+public record ConstantValueFieldValueTransformer(Object value) implements FieldValueTransformer {
+
+    public static FieldValueTransformer defaultValueForField(ResolvedJavaField field) {
+        return new ConstantValueFieldValueTransformer(switch (field.getType().getJavaKind()) {
+            case Byte -> Byte.valueOf((byte) 0);
+            case Boolean -> Boolean.valueOf(false);
+            case Short -> Short.valueOf((short) 0);
+            case Char -> Character.valueOf((char) 0);
+            case Int -> Integer.valueOf(0);
+            case Long -> Long.valueOf(0);
+            case Float -> Float.valueOf(0);
+            case Double -> Double.valueOf(0);
+            case Object -> null;
+            default -> throw VMError.shouldNotReachHere(String.valueOf(field));
+        });
+    }
+
+    @Override
+    public Object transform(Object receiver, Object originalValue) {
+        return value;
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/FieldOffsetFieldValueTransformer.java

@@ -26,6 +26,8 @@
 
 import java.lang.reflect.Field;
 
+import com.oracle.svm.core.BuildPhaseProvider;
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
 import com.oracle.svm.core.graal.nodes.FieldOffsetNode;
 import com.oracle.svm.core.reflect.target.ReflectionSubstitutionSupport;
 import com.oracle.svm.core.util.VMError;
@@ -35,17 +37,14 @@
 import jdk.vm.ci.meta.JavaConstant;
 import jdk.vm.ci.meta.JavaKind;
 
-public final class FieldOffsetFieldValueTransformer extends BoxingTransformer implements FieldValueTransformerWithAvailability {
-    private final Field targetField;
-
-    public FieldOffsetFieldValueTransformer(Field targetField, JavaKind returnKind) {
-        super(returnKind);
-        this.targetField = targetField;
-    }
+/**
+ * Implements the field value transformation semantics of {@link Kind#FieldOffset}.
+ */
+public record FieldOffsetFieldValueTransformer(Field targetField, JavaKind returnKind) implements FieldValueTransformerWithAvailability {
 
     @Override
-    public ValueAvailability valueAvailability() {
-        return ValueAvailability.AfterAnalysis;
+    public boolean isAvailable() {
+        return BuildPhaseProvider.isHostedUniverseBuilt();
     }
 
     @Override
@@ -54,7 +53,18 @@ public Object transform(Object receiver, Object originalValue) {
         if (offset <= 0) {
             throw VMError.shouldNotReachHere("Field is not marked as unsafe accessed: " + targetField);
         }
-        return box(offset);
+        return box(returnKind, offset);
+    }
+
+    static Object box(JavaKind returnKind, int value) {
+        switch (returnKind) {
+            case Int:
+                return Integer.valueOf(value);
+            case Long:
+                return Long.valueOf(value);
+            default:
+                throw VMError.shouldNotReachHere("Unexpected kind: " + returnKind);
+        }
     }
 
     @Override

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/FieldValueTransformerWithAvailability.java

@@ -36,34 +36,9 @@
 public interface FieldValueTransformerWithAvailability extends FieldValueTransformer {
 
     /**
-     * Controls when the transformed value is available at image build time.
+     * Returns true when the value for this custom computation is available.
      */
-    enum ValueAvailability {
-        /**
-         * The value is available without time constraints, i.e., it is independent of static
-         * analysis or compilation.
-         */
-        BeforeAnalysis,
-
-        /**
-         * The value depends on data computed by the static analysis and is therefore not yet
-         * available to the static analysis. The value still might be constant folded during
-         * compilation.
-         */
-        AfterAnalysis,
-
-        /**
-         * Value depends on data computed during compilation and is therefore available only when
-         * writing out the image heap into the native image. Such a value is never available for
-         * constant folding.
-         */
-        AfterCompilation
-    }
-
-    /**
-     * Returns information about when the value for this custom computation is available.
-     */
-    ValueAvailability valueAvailability();
+    boolean isAvailable();
 
     /**
      * Optionally provide a Graal IR node to intrinsify the field access before the static analysis.

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/NewInstanceOfFixedClassFieldValueTransformer.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2024, 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.svm.core.fieldvaluetransformer;
+
+import org.graalvm.nativeimage.hosted.FieldValueTransformer;
+
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
+import com.oracle.svm.util.ReflectionUtil;
+
+/**
+ * Implements the field value transformation semantics of {@link Kind#NewInstance} and
+ * {@link Kind#NewInstanceWhenNotNull}.
+ */
+public record NewInstanceOfFixedClassFieldValueTransformer(Class<?> clazz, boolean onlyIfOriginalNotNull) implements FieldValueTransformer {
+
+    @Override
+    public Object transform(Object receiver, Object originalValue) {
+        if (onlyIfOriginalNotNull && originalValue == null) {
+            return null;
+        }
+        return ReflectionUtil.newInstance(clazz);
+    }
+}

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/fieldvaluetransformer/StaticFieldBaseFieldValueTransformer.java

@@ -26,22 +26,22 @@
 
 import java.lang.reflect.Field;
 
+import com.oracle.svm.core.BuildPhaseProvider;
 import com.oracle.svm.core.StaticFieldsSupport;
+import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
 
 import jdk.graal.compiler.nodes.ValueNode;
 import jdk.graal.compiler.nodes.spi.CoreProviders;
 import jdk.vm.ci.meta.JavaConstant;
 
-public final class StaticFieldBaseFieldValueTransformer implements FieldValueTransformerWithAvailability {
-    private final Field targetField;
-
-    public StaticFieldBaseFieldValueTransformer(Field targetField) {
-        this.targetField = targetField;
-    }
+/**
+ * Implements the field value transformation semantics of {@link Kind#StaticFieldBase}.
+ */
+public record StaticFieldBaseFieldValueTransformer(Field targetField) implements FieldValueTransformerWithAvailability {
 
     @Override
-    public ValueAvailability valueAvailability() {
-        return ValueAvailability.AfterAnalysis;
+    public boolean isAvailable() {
+        return BuildPhaseProvider.isHostedUniverseBuilt();
     }
 
     @Override

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/JavaLangSubstitutions.java

@@ -49,6 +49,7 @@
 import org.graalvm.nativeimage.hosted.FieldValueTransformer;
 import org.graalvm.nativeimage.impl.InternalPlatform;
 
+import com.oracle.svm.core.BuildPhaseProvider;
 import com.oracle.svm.core.NeverInline;
 import com.oracle.svm.core.SubstrateOptions;
 import com.oracle.svm.core.SubstrateUtil;
@@ -579,13 +580,13 @@ public Object transform(Object receiver, Object originalValue) {
         return map;
     }
 
+    /*
+     * We want to wait to constant fold this value until all possible HotSpot initialization code
+     * has run.
+     */
     @Override
-    public ValueAvailability valueAvailability() {
-        /*
-         * We want to wait to constant fold this value until all possible HotSpot initialization
-         * code has run.
-         */
-        return ValueAvailability.AfterAnalysis;
+    public boolean isAvailable() {
+        return BuildPhaseProvider.isHostedUniverseBuilt();
     }
 }
 

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/jdk/VarHandleSupport.java

@@ -26,6 +26,7 @@
 
 import org.graalvm.nativeimage.ImageSingletons;
 
+import com.oracle.svm.core.BuildPhaseProvider;
 import com.oracle.svm.core.StaticFieldsSupport;
 import com.oracle.svm.core.annotate.Alias;
 import com.oracle.svm.core.annotate.RecomputeFieldValue;
@@ -63,8 +64,8 @@ abstract class VarHandleFieldOffsetComputer implements FieldValueTransformerWith
     }
 
     @Override
-    public ValueAvailability valueAvailability() {
-        return ValueAvailability.AfterAnalysis;
+    public boolean isAvailable() {
+        return BuildPhaseProvider.isHostedUniverseBuilt();
     }
 
     @Override
@@ -110,8 +111,8 @@ class VarHandleFieldOffsetAsLongComputer extends VarHandleFieldOffsetComputer {
 
 class VarHandleStaticBaseComputer implements FieldValueTransformerWithAvailability {
     @Override
-    public ValueAvailability valueAvailability() {
-        return ValueAvailability.AfterAnalysis;
+    public boolean isAvailable() {
+        return BuildPhaseProvider.isHostedUniverseBuilt();
     }
 
     @Override