summaryrefslogtreecommitdiff
path: root/src/asm/scala/tools/asm/ByteVector.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/asm/scala/tools/asm/ByteVector.java')
-rw-r--r--src/asm/scala/tools/asm/ByteVector.java339
1 files changed, 0 insertions, 339 deletions
diff --git a/src/asm/scala/tools/asm/ByteVector.java b/src/asm/scala/tools/asm/ByteVector.java
deleted file mode 100644
index 3bca7af12a..0000000000
--- a/src/asm/scala/tools/asm/ByteVector.java
+++ /dev/null
@@ -1,339 +0,0 @@
-/***
- * 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 scala.tools.asm;
-
-/**
- * A dynamically extensible vector of bytes. This class is roughly equivalent to
- * a DataOutputStream on top of a ByteArrayOutputStream, but is more efficient.
- *
- * @author Eric Bruneton
- */
-public class ByteVector {
-
- /**
- * The content of this vector.
- */
- byte[] data;
-
- /**
- * Actual number of bytes in this vector.
- */
- int length;
-
- /**
- * Constructs a new {@link ByteVector ByteVector} with a default initial
- * size.
- */
- public ByteVector() {
- data = new byte[64];
- }
-
- /**
- * Constructs a new {@link ByteVector ByteVector} with the given initial
- * size.
- *
- * @param initialSize
- * the initial size of the byte vector to be constructed.
- */
- public ByteVector(final int initialSize) {
- data = new byte[initialSize];
- }
-
- /**
- * Puts a byte into this byte vector. The byte vector is automatically
- * enlarged if necessary.
- *
- * @param b
- * a byte.
- * @return this byte vector.
- */
- public ByteVector putByte(final int b) {
- int length = this.length;
- if (length + 1 > data.length) {
- enlarge(1);
- }
- data[length++] = (byte) b;
- this.length = length;
- return this;
- }
-
- /**
- * Puts two bytes into this byte vector. The byte vector is automatically
- * enlarged if necessary.
- *
- * @param b1
- * a byte.
- * @param b2
- * another byte.
- * @return this byte vector.
- */
- ByteVector put11(final int b1, final int b2) {
- int length = this.length;
- if (length + 2 > data.length) {
- enlarge(2);
- }
- byte[] data = this.data;
- data[length++] = (byte) b1;
- data[length++] = (byte) b2;
- this.length = length;
- return this;
- }
-
- /**
- * Puts a short into this byte vector. The byte vector is automatically
- * enlarged if necessary.
- *
- * @param s
- * a short.
- * @return this byte vector.
- */
- public ByteVector putShort(final int s) {
- int length = this.length;
- if (length + 2 > data.length) {
- enlarge(2);
- }
- byte[] data = this.data;
- data[length++] = (byte) (s >>> 8);
- data[length++] = (byte) s;
- this.length = length;
- return this;
- }
-
- /**
- * Puts a byte and a short into this byte vector. The byte vector is
- * automatically enlarged if necessary.
- *
- * @param b
- * a byte.
- * @param s
- * a short.
- * @return this byte vector.
- */
- ByteVector put12(final int b, final int s) {
- int length = this.length;
- if (length + 3 > data.length) {
- enlarge(3);
- }
- byte[] data = this.data;
- data[length++] = (byte) b;
- data[length++] = (byte) (s >>> 8);
- data[length++] = (byte) s;
- this.length = length;
- return this;
- }
-
- /**
- * Puts an int into this byte vector. The byte vector is automatically
- * enlarged if necessary.
- *
- * @param i
- * an int.
- * @return this byte vector.
- */
- public ByteVector putInt(final int i) {
- int length = this.length;
- if (length + 4 > data.length) {
- enlarge(4);
- }
- byte[] data = this.data;
- data[length++] = (byte) (i >>> 24);
- data[length++] = (byte) (i >>> 16);
- data[length++] = (byte) (i >>> 8);
- data[length++] = (byte) i;
- this.length = length;
- return this;
- }
-
- /**
- * Puts a long into this byte vector. The byte vector is automatically
- * enlarged if necessary.
- *
- * @param l
- * a long.
- * @return this byte vector.
- */
- public ByteVector putLong(final long l) {
- int length = this.length;
- if (length + 8 > data.length) {
- enlarge(8);
- }
- byte[] data = this.data;
- int i = (int) (l >>> 32);
- data[length++] = (byte) (i >>> 24);
- data[length++] = (byte) (i >>> 16);
- data[length++] = (byte) (i >>> 8);
- data[length++] = (byte) i;
- i = (int) l;
- data[length++] = (byte) (i >>> 24);
- data[length++] = (byte) (i >>> 16);
- data[length++] = (byte) (i >>> 8);
- data[length++] = (byte) i;
- this.length = length;
- return this;
- }
-
- /**
- * Puts an UTF8 string into this byte vector. The byte vector is
- * automatically enlarged if necessary.
- *
- * @param s
- * a String whose UTF8 encoded length must be less than 65536.
- * @return this byte vector.
- */
- public ByteVector putUTF8(final String s) {
- int charLength = s.length();
- if (charLength > 65535) {
- throw new IllegalArgumentException();
- }
- int len = length;
- if (len + 2 + charLength > data.length) {
- enlarge(2 + charLength);
- }
- byte[] data = this.data;
- // optimistic algorithm: instead of computing the byte length and then
- // serializing the string (which requires two loops), we assume the byte
- // length is equal to char length (which is the most frequent case), and
- // we start serializing the string right away. During the serialization,
- // if we find that this assumption is wrong, we continue with the
- // general method.
- data[len++] = (byte) (charLength >>> 8);
- data[len++] = (byte) charLength;
- for (int i = 0; i < charLength; ++i) {
- char c = s.charAt(i);
- if (c >= '\001' && c <= '\177') {
- data[len++] = (byte) c;
- } else {
- length = len;
- return encodeUTF8(s, i, 65535);
- }
- }
- length = len;
- return this;
- }
-
- /**
- * Puts an UTF8 string into this byte vector. The byte vector is
- * automatically enlarged if necessary. The string length is encoded in two
- * bytes before the encoded characters, if there is space for that (i.e. if
- * this.length - i - 2 >= 0).
- *
- * @param s
- * the String to encode.
- * @param i
- * the index of the first character to encode. The previous
- * characters are supposed to have already been encoded, using
- * only one byte per character.
- * @param maxByteLength
- * the maximum byte length of the encoded string, including the
- * already encoded characters.
- * @return this byte vector.
- */
- ByteVector encodeUTF8(final String s, int i, int maxByteLength) {
- int charLength = s.length();
- int byteLength = i;
- char c;
- for (int j = i; j < charLength; ++j) {
- c = s.charAt(j);
- if (c >= '\001' && c <= '\177') {
- byteLength++;
- } else if (c > '\u07FF') {
- byteLength += 3;
- } else {
- byteLength += 2;
- }
- }
- if (byteLength > maxByteLength) {
- throw new IllegalArgumentException();
- }
- int start = length - i - 2;
- if (start >= 0) {
- data[start] = (byte) (byteLength >>> 8);
- data[start + 1] = (byte) byteLength;
- }
- if (length + byteLength - i > data.length) {
- enlarge(byteLength - i);
- }
- int len = length;
- for (int j = i; j < charLength; ++j) {
- c = s.charAt(j);
- if (c >= '\001' && c <= '\177') {
- data[len++] = (byte) c;
- } else if (c > '\u07FF') {
- data[len++] = (byte) (0xE0 | c >> 12 & 0xF);
- data[len++] = (byte) (0x80 | c >> 6 & 0x3F);
- data[len++] = (byte) (0x80 | c & 0x3F);
- } else {
- data[len++] = (byte) (0xC0 | c >> 6 & 0x1F);
- data[len++] = (byte) (0x80 | c & 0x3F);
- }
- }
- length = len;
- return this;
- }
-
- /**
- * Puts an array of bytes into this byte vector. The byte vector is
- * automatically enlarged if necessary.
- *
- * @param b
- * an array of bytes. May be <tt>null</tt> to put <tt>len</tt>
- * null bytes into this byte vector.
- * @param off
- * index of the fist byte of b that must be copied.
- * @param len
- * number of bytes of b that must be copied.
- * @return this byte vector.
- */
- public ByteVector putByteArray(final byte[] b, final int off, final int len) {
- if (length + len > data.length) {
- enlarge(len);
- }
- if (b != null) {
- System.arraycopy(b, off, data, length, len);
- }
- length += len;
- return this;
- }
-
- /**
- * Enlarge this byte vector so that it can receive n more bytes.
- *
- * @param size
- * number of additional bytes that this byte vector should be
- * able to receive.
- */
- private void enlarge(final int size) {
- int length1 = 2 * data.length;
- int length2 = length + size;
- byte[] newData = new byte[length1 > length2 ? length1 : length2];
- System.arraycopy(data, 0, newData, 0, length);
- data = newData;
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-24 21:14:22 +0000