Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/classes/com/sun/tools/classfile/BootstrapMethods_attribute.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,90 @@
     1.4 +/*
     1.5 + * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package com.sun.tools.classfile;
    1.30 +
    1.31 +import java.io.IOException;
    1.32 +
    1.33 +/**
    1.34 + * See JVMS 4.7.21
    1.35 + * http://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.7.21
    1.36 + *
    1.37 + *  <p><b>This is NOT part of any supported API.
    1.38 + *  If you write code that depends on this, you do so at your own risk.
    1.39 + *  This code and its internal interfaces are subject to change or
    1.40 + *  deletion without notice.</b>
    1.41 + */
    1.42 +public class BootstrapMethods_attribute extends Attribute {
    1.43 +    public final BootstrapMethodSpecifier[] bootstrap_method_specifiers;
    1.44 +
    1.45 +    BootstrapMethods_attribute(ClassReader cr, int name_index, int length)
    1.46 +            throws IOException, AttributeException {
    1.47 +        super(name_index, length);
    1.48 +        int bootstrap_method_count = cr.readUnsignedShort();
    1.49 +        bootstrap_method_specifiers = new BootstrapMethodSpecifier[bootstrap_method_count];
    1.50 +        for (int i = 0; i < bootstrap_method_specifiers.length; i++)
    1.51 +            bootstrap_method_specifiers[i] = new BootstrapMethodSpecifier(cr);
    1.52 +    }
    1.53 +
    1.54 +    public  BootstrapMethods_attribute(int name_index, BootstrapMethodSpecifier[] bootstrap_method_specifiers) {
    1.55 +        super(name_index, length(bootstrap_method_specifiers));
    1.56 +        this.bootstrap_method_specifiers = bootstrap_method_specifiers;
    1.57 +    }
    1.58 +
    1.59 +    public static int length(BootstrapMethodSpecifier[] bootstrap_method_specifiers) {
    1.60 +        int n = 2;
    1.61 +        for (BootstrapMethodSpecifier b : bootstrap_method_specifiers)
    1.62 +            n += b.length();
    1.63 +        return n;
    1.64 +    }
    1.65 +
    1.66 +    @Override
    1.67 +    public <R, P> R accept(Visitor<R, P> visitor, P p) {
    1.68 +        return visitor.visitBootstrapMethods(this, p);
    1.69 +    }
    1.70 +
    1.71 +    public static class BootstrapMethodSpecifier {
    1.72 +        public int bootstrap_method_ref;
    1.73 +        public int[] bootstrap_arguments;
    1.74 +
    1.75 +        public BootstrapMethodSpecifier(int bootstrap_method_ref, int[] bootstrap_arguments) {
    1.76 +            this.bootstrap_method_ref = bootstrap_method_ref;
    1.77 +            this.bootstrap_arguments = bootstrap_arguments;
    1.78 +        }
    1.79 +        BootstrapMethodSpecifier(ClassReader cr) throws IOException {
    1.80 +            bootstrap_method_ref = cr.readUnsignedShort();
    1.81 +            int method_count = cr.readUnsignedShort();
    1.82 +            bootstrap_arguments = new int[method_count];
    1.83 +            for (int i = 0; i < bootstrap_arguments.length; i++) {
    1.84 +                bootstrap_arguments[i] = cr.readUnsignedShort();
    1.85 +            }
    1.86 +        }
    1.87 +
    1.88 +        int length() {
    1.89 +            // u2 (method_ref) + u2 (argc) + u2 * argc
    1.90 +            return 2 + 2 + (bootstrap_arguments.length * 2);
    1.91 +        }
    1.92 +    }
    1.93 +}