/*

 * 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.

 */

/*

 * This file is available under and governed by the GNU General Public

 * License version 2 only, as published by the Free Software Foundation.

 * However, the following notice accompanied the original version of this

 * file:

 *

 * ASM: a very small and fast Java bytecode manipulation framework

 * Copyright (c) 2000-2011 INRIA, France Telecom

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the copyright holders nor the names of its

 *    contributors may be used to endorse or promote products derived from

 *    this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

 * THE POSSIBILITY OF SUCH DAMAGE.

 */

package jdk.internal.org.objectweb.asm;

/**

 * Information about a class being parsed in a {@link ClassReader}.

 *

 * @author Eric Bruneton

 */

final class Context {

    /** The prototypes of the attributes that must be parsed in this class. */

    Attribute[] attributePrototypes;

    /**

      * The options used to parse this class. One or more of {@link ClassReader#SKIP_CODE}, {@link

      * ClassReader#SKIP_DEBUG}, {@link ClassReader#SKIP_FRAMES}, {@link ClassReader#EXPAND_FRAMES} or

      * {@link ClassReader#EXPAND_ASM_INSNS}.

      */

    int parsingOptions;

    /** The buffer used to read strings in the constant pool. */

    char[] charBuffer;

    // Information about the current method, i.e. the one read in the current (or latest) call

    // to {@link ClassReader#readMethod()}.

    /** The access flags of the current method. */

    int currentMethodAccessFlags;

    /** The name of the current method. */

    String currentMethodName;

    /** The descriptor of the current method. */

    String currentMethodDescriptor;

    /**

      * The labels of the current method, indexed by bytecode offset (only bytecode offsets for which a

      * label is needed have a non null associated Label).

      */

    Label[] currentMethodLabels;

    // Information about the current type annotation target, i.e. the one read in the current

    // (or latest) call to {@link ClassReader#readAnnotationTarget()}.

    /**

      * The target_type and target_info of the current type annotation target, encoded as described in

      * {@link TypeReference}.

      */

    int currentTypeAnnotationTarget;

    /** The target_path of the current type annotation target. */

    TypePath currentTypeAnnotationTargetPath;

    /** The start of each local variable range in the current local variable annotation. */

    Label[] currentLocalVariableAnnotationRangeStarts;

    /** The end of each local variable range in the current local variable annotation. */

    Label[] currentLocalVariableAnnotationRangeEnds;

    /**

      * The local variable index of each local variable range in the current local variable annotation.

      */

    int[] currentLocalVariableAnnotationRangeIndices;

    // Information about the current stack map frame, i.e. the one read in the current (or latest)

    // call to {@link ClassReader#readFrame()}.

    /** The bytecode offset of the current stack map frame. */

    int currentFrameOffset;

    /**

      * The type of the current stack map frame. One of {@link Opcodes#F_FULL}, {@link

      * Opcodes#F_APPEND}, {@link Opcodes#F_CHOP}, {@link Opcodes#F_SAME} or {@link Opcodes#F_SAME1}.

      */

    int currentFrameType;

    /**

      * The number of local variable types in the current stack map frame. Each type is represented

      * with a single array element (even long and double).

      */

    int currentFrameLocalCount;

    /**

      * The delta number of local variable types in the current stack map frame (each type is

      * represented with a single array element - even long and double). This is the number of local

      * variable types in this frame, minus the number of local variable types in the previous frame.

      */

    int currentFrameLocalCountDelta;

    /**

      * The types of the local variables in the current stack map frame. Each type is represented with

      * a single array element (even long and double), using the format described in {@link

      * MethodVisitor#visitFrame}. Depending on {@link #currentFrameType}, this contains the types of

      * all the local variables, or only those of the additional ones (compared to the previous frame).

      */

    Object[] currentFrameLocalTypes;

    /**

      * The number stack element types in the current stack map frame. Each type is represented with a

      * single array element (even long and double).

      */

    int currentFrameStackCount;

    /**

      * The types of the stack elements in the current stack map frame. Each type is represented with a

      * single array element (even long and double), using the format described in {@link

      * MethodVisitor#visitFrame}.

      */

    Object[] currentFrameStackTypes;

}