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Diffstat (limited to 'tools/external/asm/org/objectweb/asm/FieldWriter.java')
| -rw-r--r-- | tools/external/asm/org/objectweb/asm/FieldWriter.java | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/FieldWriter.java b/tools/external/asm/org/objectweb/asm/FieldWriter.java new file mode 100644 index 000000000..7eb3ed4fc --- /dev/null +++ b/tools/external/asm/org/objectweb/asm/FieldWriter.java @@ -0,0 +1,276 @@ +/*** + * ASM: a very small and fast Java bytecode manipulation framework + * Copyright (c) 2000-2005 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 org.objectweb.asm; + +/** + * An {@link FieldVisitor} that generates Java fields in bytecode form. + * + * @author Eric Bruneton + */ +final class FieldWriter implements FieldVisitor { + + /** + * Next field writer (see {@link ClassWriter#firstField firstField}). + */ + FieldWriter next; + + /** + * The class writer to which this field must be added. + */ + private ClassWriter cw; + + /** + * Access flags of this field. + */ + private int access; + + /** + * The index of the constant pool item that contains the name of this + * method. + */ + private int name; + + /** + * The index of the constant pool item that contains the descriptor of this + * field. + */ + private int desc; + + /** + * The index of the constant pool item that contains the signature of this + * field. + */ + private int signature; + + /** + * The index of the constant pool item that contains the constant value of + * this field. + */ + private int value; + + /** + * The runtime visible annotations of this field. May be <tt>null</tt>. + */ + private AnnotationWriter anns; + + /** + * The runtime invisible annotations of this field. May be <tt>null</tt>. + */ + private AnnotationWriter ianns; + + /** + * The non standard attributes of this field. May be <tt>null</tt>. + */ + private Attribute attrs; + + // ------------------------------------------------------------------------ + // Constructor + // ------------------------------------------------------------------------ + + /** + * Constructs a new {@link FieldWriter}. + * + * @param cw the class writer to which this field must be added. + * @param access the field's access flags (see {@link Opcodes}). + * @param name the field's name. + * @param desc the field's descriptor (see {@link Type}). + * @param signature the field's signature. May be <tt>null</tt>. + * @param value the field's constant value. May be <tt>null</tt>. + */ + protected FieldWriter( + final ClassWriter cw, + final int access, + final String name, + final String desc, + final String signature, + final Object value) + { + if (cw.firstField == null) { + cw.firstField = this; + } else { + cw.lastField.next = this; + } + cw.lastField = this; + this.cw = cw; + this.access = access; + this.name = cw.newUTF8(name); + this.desc = cw.newUTF8(desc); + if (signature != null) { + this.signature = cw.newUTF8(signature); + } + if (value != null) { + this.value = cw.newConstItem(value).index; + } + } + + // ------------------------------------------------------------------------ + // Implementation of the FieldVisitor interface + // ------------------------------------------------------------------------ + + public AnnotationVisitor visitAnnotation( + final String desc, + final boolean visible) + { + ByteVector bv = new ByteVector(); + // write type, and reserve space for values count + bv.putShort(cw.newUTF8(desc)).putShort(0); + AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2); + if (visible) { + aw.next = anns; + anns = aw; + } else { + aw.next = ianns; + ianns = aw; + } + return aw; + } + + public void visitAttribute(final Attribute attr) { + attr.next = attrs; + attrs = attr; + } + + public void visitEnd() { + } + + // ------------------------------------------------------------------------ + // Utility methods + // ------------------------------------------------------------------------ + + /** + * Returns the size of this field. + * + * @return the size of this field. + */ + int getSize() { + int size = 8; + if (value != 0) { + cw.newUTF8("ConstantValue"); + size += 8; + } + if ((access & Opcodes.ACC_SYNTHETIC) != 0 + && (cw.version & 0xffff) < Opcodes.V1_5) + { + cw.newUTF8("Synthetic"); + size += 6; + } + if ((access & Opcodes.ACC_DEPRECATED) != 0) { + cw.newUTF8("Deprecated"); + size += 6; + } + if (cw.version == Opcodes.V1_4 && (access & Opcodes.ACC_ENUM) != 0) { + cw.newUTF8("Enum"); + size += 6; + } + if (signature != 0) { + cw.newUTF8("Signature"); + size += 8; + } + if (anns != null) { + cw.newUTF8("RuntimeVisibleAnnotations"); + size += 8 + anns.getSize(); + } + if (ianns != null) { + cw.newUTF8("RuntimeInvisibleAnnotations"); + size += 8 + ianns.getSize(); + } + if (attrs != null) { + size += attrs.getSize(cw, null, 0, -1, -1); + } + return size; + } + + /** + * Puts the content of this field into the given byte vector. + * + * @param out where the content of this field must be put. + */ + void put(final ByteVector out) { + out.putShort(access).putShort(name).putShort(desc); + int attributeCount = 0; + if (value != 0) { + ++attributeCount; + } + if ((access & Opcodes.ACC_SYNTHETIC) != 0 + && (cw.version & 0xffff) < Opcodes.V1_5) + { + ++attributeCount; + } + if ((access & Opcodes.ACC_DEPRECATED) != 0) { + ++attributeCount; + } + if (cw.version == Opcodes.V1_4 && (access & Opcodes.ACC_ENUM) != 0) { + ++attributeCount; + } + if (signature != 0) { + ++attributeCount; + } + if (anns != null) { + ++attributeCount; + } + if (ianns != null) { + ++attributeCount; + } + if (attrs != null) { + attributeCount += attrs.getCount(); + } + out.putShort(attributeCount); + if (value != 0) { + out.putShort(cw.newUTF8("ConstantValue")); + out.putInt(2).putShort(value); + } + if ((access & Opcodes.ACC_SYNTHETIC) != 0 + && (cw.version & 0xffff) < Opcodes.V1_5) + { + out.putShort(cw.newUTF8("Synthetic")).putInt(0); + } + if ((access & Opcodes.ACC_DEPRECATED) != 0) { + out.putShort(cw.newUTF8("Deprecated")).putInt(0); + } + if (cw.version == Opcodes.V1_4 && (access & Opcodes.ACC_ENUM) != 0) { + out.putShort(cw.newUTF8("Enum")).putInt(0); + } + if (signature != 0) { + out.putShort(cw.newUTF8("Signature")); + out.putInt(2).putShort(signature); + } + if (anns != null) { + out.putShort(cw.newUTF8("RuntimeVisibleAnnotations")); + anns.put(out); + } + if (ianns != null) { + out.putShort(cw.newUTF8("RuntimeInvisibleAnnotations")); + ianns.put(out); + } + if (attrs != null) { + attrs.put(cw, null, 0, -1, -1, out); + } + } +} |