src/jdk.internal.vm.ci/share/classes/jdk.vm.ci.meta/src/jdk/vm/ci/meta/JavaKind.java
author kvn
Fri, 30 Mar 2018 07:47:20 -0700
changeset 49654 16f53c9c7493
parent 47216 71c04702a3d5
child 50858 2d3e99a72541
permissions -rw-r--r--
8200461: MeetIncompatibleInterfaceArrays test fails with -Xcomp Summary: Add requires to run test only in Xmixed mode. Reviewed-by: simonis
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/*
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 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.vm.ci.meta;
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import java.lang.reflect.Array;
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//JaCoCo Exclude
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/**
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 * Denotes the basic kinds of types in CRI, including the all the Java primitive types, for example,
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 * {@link JavaKind#Int} for {@code int} and {@link JavaKind#Object} for all object types. A kind has
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 * a single character short name, a Java name, and a set of flags further describing its behavior.
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 */
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public enum JavaKind {
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    /** The primitive boolean kind, represented as an int on the stack. */
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    Boolean('Z', "boolean", 1, true, java.lang.Boolean.TYPE, java.lang.Boolean.class),
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    /** The primitive byte kind, represented as an int on the stack. */
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    Byte('B', "byte", 1, true, java.lang.Byte.TYPE, java.lang.Byte.class),
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    /** The primitive short kind, represented as an int on the stack. */
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    Short('S', "short", 1, true, java.lang.Short.TYPE, java.lang.Short.class),
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    /** The primitive char kind, represented as an int on the stack. */
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    Char('C', "char", 1, true, java.lang.Character.TYPE, java.lang.Character.class),
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    /** The primitive int kind, represented as an int on the stack. */
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    Int('I', "int", 1, true, java.lang.Integer.TYPE, java.lang.Integer.class),
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    /** The primitive float kind. */
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    Float('F', "float", 1, false, java.lang.Float.TYPE, java.lang.Float.class),
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    /** The primitive long kind. */
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    Long('J', "long", 2, false, java.lang.Long.TYPE, java.lang.Long.class),
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    /** The primitive double kind. */
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    Double('D', "double", 2, false, java.lang.Double.TYPE, java.lang.Double.class),
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    /** The Object kind, also used for arrays. */
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    Object('A', "Object", 1, false, null, null),
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    /** The void kind. */
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    Void('V', "void", 0, false, java.lang.Void.TYPE, java.lang.Void.class),
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    /** The non-type. */
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    Illegal('-', "illegal", 0, false, null, null);
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    private final char typeChar;
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    private final String javaName;
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    private final boolean isStackInt;
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    private final Class<?> primitiveJavaClass;
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    private final Class<?> boxedJavaClass;
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    private final int slotCount;
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    JavaKind(char typeChar, String javaName, int slotCount, boolean isStackInt, Class<?> primitiveJavaClass, Class<?> boxedJavaClass) {
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        this.typeChar = typeChar;
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        this.javaName = javaName;
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        this.slotCount = slotCount;
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        this.isStackInt = isStackInt;
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        this.primitiveJavaClass = primitiveJavaClass;
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        this.boxedJavaClass = boxedJavaClass;
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        assert primitiveJavaClass == null || javaName.equals(primitiveJavaClass.getName());
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    }
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    /**
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     * Returns the number of stack slots occupied by this kind according to the Java bytecodes
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     * specification.
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     */
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    public int getSlotCount() {
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        return this.slotCount;
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    }
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    /**
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     * Returns whether this kind occupied two stack slots.
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     */
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    public boolean needsTwoSlots() {
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        return this.slotCount == 2;
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    }
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    /**
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     * Returns the name of the kind as a single upper case character. For the void and primitive
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     * kinds, this is the <i>FieldType</i> term in
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     * <a href="https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.3.2-200">
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     * table 4.3-A</a> of the JVM Specification. For {@link #Object}, the character {@code 'A'} is
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     * returned and for {@link #Illegal}, {@code '-'} is returned.
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     */
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    public char getTypeChar() {
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        return typeChar;
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    }
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    /**
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     * Returns the name of this kind which will also be it Java programming language name if it is
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     * {@linkplain #isPrimitive() primitive} or {@code void}.
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     */
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    public String getJavaName() {
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        return javaName;
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    }
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    /**
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     * Checks whether this type is a Java primitive type.
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     *
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     * @return {@code true} if this is {@link #Boolean}, {@link #Byte}, {@link #Char},
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     *         {@link #Short}, {@link #Int}, {@link #Long}, {@link #Float}, {@link #Double}, or
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     *         {@link #Void}.
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     */
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    public boolean isPrimitive() {
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        return primitiveJavaClass != null;
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    }
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    /**
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     * Returns the kind that represents this kind when on the Java operand stack.
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     *
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     * @return the kind used on the operand stack
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     */
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    public JavaKind getStackKind() {
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   136
        if (isStackInt) {
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            return Int;
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        }
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        return this;
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    }
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    /**
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     * Checks whether this type is a Java primitive type representing an integer number.
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     *
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     * @return {@code true} if the stack kind is {@link #Int} or {@link #Long}.
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     */
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   147
    public boolean isNumericInteger() {
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        return isStackInt || this == JavaKind.Long;
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   149
    }
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    /**
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     * Checks whether this type is a Java primitive type representing an unsigned number.
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     *
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     * @return {@code true} if the kind is {@link #Boolean} or {@link #Char}.
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     */
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   156
    public boolean isUnsigned() {
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        return this == JavaKind.Boolean || this == JavaKind.Char;
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   158
    }
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    /**
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   161
     * Checks whether this type is a Java primitive type representing a floating point number.
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     *
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     * @return {@code true} if this is {@link #Float} or {@link #Double}.
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     */
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    public boolean isNumericFloat() {
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        return this == JavaKind.Float || this == JavaKind.Double;
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   167
    }
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   168
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    /**
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     * Checks whether this represent an Object of some sort.
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   171
     *
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     * @return {@code true} if this is {@link #Object}.
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   173
     */
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   174
    public boolean isObject() {
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   175
        return this == JavaKind.Object;
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   176
    }
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    /**
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     * Returns the kind corresponding to the Java type string.
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     *
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     * @param typeString the Java type string
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     * @return the kind
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     */
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    public static JavaKind fromTypeString(String typeString) {
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   185
        assert typeString.length() > 0;
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        final char first = typeString.charAt(0);
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   187
        if (first == '[' || first == 'L') {
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   188
            return JavaKind.Object;
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   189
        }
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        return JavaKind.fromPrimitiveOrVoidTypeChar(first);
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   191
    }
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   192
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    /**
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     * Returns the kind of a word given the size of a word in bytes.
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   195
     *
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     * @param wordSizeInBytes the size of a word in bytes
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     * @return the kind representing a word value
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   198
     */
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   199
    public static JavaKind fromWordSize(int wordSizeInBytes) {
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   200
        if (wordSizeInBytes == 8) {
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            return JavaKind.Long;
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   202
        } else {
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            assert wordSizeInBytes == 4 : "Unsupported word size!";
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            return JavaKind.Int;
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   205
        }
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   206
    }
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   207
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   208
    /**
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   209
     * Returns the kind from the character describing a primitive or void.
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   210
     *
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     * @param ch the character for a void or primitive kind as returned by {@link #getTypeChar()}
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     * @return the kind
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   213
     */
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   214
    public static JavaKind fromPrimitiveOrVoidTypeChar(char ch) {
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   215
        switch (ch) {
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   216
            case 'Z':
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   217
                return Boolean;
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   218
            case 'C':
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   219
                return Char;
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   220
            case 'F':
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   221
                return Float;
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   222
            case 'D':
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   223
                return Double;
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   224
            case 'B':
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   225
                return Byte;
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   226
            case 'S':
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   227
                return Short;
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diff changeset
   228
            case 'I':
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   229
                return Int;
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   230
            case 'J':
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   231
                return Long;
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   232
            case 'V':
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   233
                return Void;
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   234
        }
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   235
        throw new IllegalArgumentException("unknown primitive or void type character: " + ch);
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diff changeset
   236
    }
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   237
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   238
    /**
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   239
     * Returns the Kind representing the given Java class.
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   240
     *
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   241
     * @param klass the class
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   242
     * @return the kind
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   243
     */
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    public static JavaKind fromJavaClass(Class<?> klass) {
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   245
        if (klass == Boolean.primitiveJavaClass) {
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   246
            return Boolean;
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   247
        } else if (klass == Byte.primitiveJavaClass) {
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   248
            return Byte;
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   249
        } else if (klass == Short.primitiveJavaClass) {
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   250
            return Short;
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   251
        } else if (klass == Char.primitiveJavaClass) {
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   252
            return Char;
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   253
        } else if (klass == Int.primitiveJavaClass) {
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   254
            return Int;
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   255
        } else if (klass == Long.primitiveJavaClass) {
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   256
            return Long;
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   257
        } else if (klass == Float.primitiveJavaClass) {
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   258
            return Float;
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   259
        } else if (klass == Double.primitiveJavaClass) {
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   260
            return Double;
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   261
        } else if (klass == Void.primitiveJavaClass) {
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   262
            return Void;
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diff changeset
   263
        } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
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   264
            return Object;
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parents:
diff changeset
   265
        }
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kvn
parents:
diff changeset
   266
    }
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   267
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   268
    /**
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   269
     * Returns the Java class representing this kind.
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   270
     *
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   271
     * @return the Java class
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   272
     */
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   273
    public Class<?> toJavaClass() {
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   274
        return primitiveJavaClass;
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   275
    }
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   276
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   277
    /**
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   278
     * Returns the Java class for instances of boxed values of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   279
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   280
     * @return the Java class
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   281
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   282
    public Class<?> toBoxedJavaClass() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   283
        return boxedJavaClass;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   284
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   285
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   286
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   287
     * Converts this value type to a string.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   288
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   289
    @Override
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   290
    public String toString() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   291
        return javaName;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   292
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   293
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   294
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   295
     * Marker interface for types that should be {@linkplain JavaKind#format(Object) formatted} with
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   296
     * their {@link Object#toString()} value. Calling {@link Object#toString()} on other objects
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   297
     * poses a security risk because it can potentially call user code.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   298
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   299
    public interface FormatWithToString {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   300
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   301
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   302
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   303
     * Classes for which invoking {@link Object#toString()} does not run user code.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   304
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   305
    private static boolean isToStringSafe(Class<?> c) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   306
        return c == Boolean.class || c == Byte.class || c == Character.class || c == Short.class || c == Integer.class || c == Float.class || c == Long.class || c == Double.class;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   307
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   308
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   309
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   310
     * Gets a formatted string for a given value of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   311
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   312
     * @param value a value of this kind
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   313
     * @return a formatted string for {@code value} based on this kind
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   314
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   315
    public String format(Object value) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   316
        if (isPrimitive()) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   317
            assert isToStringSafe(value.getClass());
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   318
            return value.toString();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   319
        } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   320
            if (value == null) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   321
                return "null";
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   322
            } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   323
                if (value instanceof String) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   324
                    String s = (String) value;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   325
                    if (s.length() > 50) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   326
                        return "String:\"" + s.substring(0, 30) + "...\"";
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   327
                    } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   328
                        return "String:\"" + s + '"';
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   329
                    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   330
                } else if (value instanceof JavaType) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   331
                    return "JavaType:" + ((JavaType) value).toJavaName();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   332
                } else if (value instanceof Enum) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   333
                    return MetaUtil.getSimpleName(value.getClass(), true) + ":" + ((Enum<?>) value).name();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   334
                } else if (value instanceof FormatWithToString) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   335
                    return MetaUtil.getSimpleName(value.getClass(), true) + ":" + String.valueOf(value);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   336
                } else if (value instanceof Class<?>) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   337
                    return "Class:" + ((Class<?>) value).getName();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   338
                } else if (isToStringSafe(value.getClass())) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   339
                    return value.toString();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   340
                } else if (value.getClass().isArray()) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   341
                    return formatArray(value);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   342
                } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   343
                    return MetaUtil.getSimpleName(value.getClass(), true) + "@" + System.identityHashCode(value);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   344
                }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   345
            }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   346
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   347
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   348
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   349
    private static final int MAX_FORMAT_ARRAY_LENGTH = 5;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   350
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   351
    private static String formatArray(Object array) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   352
        Class<?> componentType = array.getClass().getComponentType();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   353
        assert componentType != null;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   354
        int arrayLength = Array.getLength(array);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   355
        StringBuilder buf = new StringBuilder(MetaUtil.getSimpleName(componentType, true)).append('[').append(arrayLength).append("]{");
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   356
        int length = Math.min(MAX_FORMAT_ARRAY_LENGTH, arrayLength);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   357
        boolean primitive = componentType.isPrimitive();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   358
        for (int i = 0; i < length; i++) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   359
            if (primitive) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   360
                buf.append(Array.get(array, i));
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   361
            } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   362
                Object o = ((Object[]) array)[i];
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   363
                buf.append(JavaKind.Object.format(o));
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   364
            }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   365
            if (i != length - 1) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   366
                buf.append(", ");
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   367
            }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   368
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   369
        if (arrayLength != length) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   370
            buf.append(", ...");
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   371
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   372
        return buf.append('}').toString();
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   373
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   374
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   375
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   376
     * Gets the minimum value that can be represented as a value of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   377
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   378
     * @return the minimum value represented as a {@code long}
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   379
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   380
    public long getMinValue() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   381
        switch (this) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   382
            case Boolean:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   383
                return 0;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   384
            case Byte:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   385
                return java.lang.Byte.MIN_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   386
            case Char:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   387
                return java.lang.Character.MIN_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   388
            case Short:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   389
                return java.lang.Short.MIN_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   390
            case Int:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   391
                return java.lang.Integer.MIN_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   392
            case Long:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   393
                return java.lang.Long.MIN_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   394
            case Float:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   395
                return java.lang.Float.floatToRawIntBits(java.lang.Float.MIN_VALUE);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   396
            case Double:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   397
                return java.lang.Double.doubleToRawLongBits(java.lang.Double.MIN_VALUE);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   398
            default:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   399
                throw new IllegalArgumentException("illegal call to minValue on " + this);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   400
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   401
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   402
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   403
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   404
     * Gets the maximum value that can be represented as a value of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   405
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   406
     * @return the maximum value represented as a {@code long}
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   407
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   408
    public long getMaxValue() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   409
        switch (this) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   410
            case Boolean:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   411
                return 1;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   412
            case Byte:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   413
                return java.lang.Byte.MAX_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   414
            case Char:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   415
                return java.lang.Character.MAX_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   416
            case Short:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   417
                return java.lang.Short.MAX_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   418
            case Int:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   419
                return java.lang.Integer.MAX_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   420
            case Long:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   421
                return java.lang.Long.MAX_VALUE;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   422
            case Float:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   423
                return java.lang.Float.floatToRawIntBits(java.lang.Float.MAX_VALUE);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   424
            case Double:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   425
                return java.lang.Double.doubleToRawLongBits(java.lang.Double.MAX_VALUE);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   426
            default:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   427
                throw new IllegalArgumentException("illegal call to maxValue on " + this);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   428
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   429
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   430
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   431
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   432
     * Number of bytes that are necessary to represent a value of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   433
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   434
     * @return the number of bytes
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   435
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   436
    public int getByteCount() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   437
        if (this == Boolean) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   438
            return 1;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   439
        } else {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   440
            return getBitCount() >> 3;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   441
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   442
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   443
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   444
    /**
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   445
     * Number of bits that are necessary to represent a value of this kind.
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   446
     *
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   447
     * @return the number of bits
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   448
     */
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   449
    public int getBitCount() {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   450
        switch (this) {
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   451
            case Boolean:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   452
                return 1;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   453
            case Byte:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   454
                return 8;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   455
            case Char:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   456
            case Short:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   457
                return 16;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   458
            case Float:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   459
                return 32;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   460
            case Int:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   461
                return 32;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   462
            case Double:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   463
                return 64;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   464
            case Long:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   465
                return 64;
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   466
            default:
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   467
                throw new IllegalArgumentException("illegal call to bits on " + this);
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   468
        }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   469
    }
1ade39b8381b 8174879: Rename jdk.vm.ci to jdk.internal.vm.ci
kvn
parents:
diff changeset
   470
}