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Diffstat (limited to 'src/jdk/nashorn/internal/objects/NativeDataView.java')
| -rw-r--r-- | src/jdk/nashorn/internal/objects/NativeDataView.java | 1015 |
1 files changed, 0 insertions, 1015 deletions
diff --git a/src/jdk/nashorn/internal/objects/NativeDataView.java b/src/jdk/nashorn/internal/objects/NativeDataView.java deleted file mode 100644 index 44d06065..00000000 --- a/src/jdk/nashorn/internal/objects/NativeDataView.java +++ /dev/null @@ -1,1015 +0,0 @@ -/* - * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. - * 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. - */ - -package jdk.nashorn.internal.objects; - -import static jdk.nashorn.internal.runtime.ECMAErrors.rangeError; -import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; -import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED; - -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import jdk.nashorn.internal.objects.annotations.Attribute; -import jdk.nashorn.internal.objects.annotations.Constructor; -import jdk.nashorn.internal.objects.annotations.Function; -import jdk.nashorn.internal.objects.annotations.Property; -import jdk.nashorn.internal.objects.annotations.ScriptClass; -import jdk.nashorn.internal.objects.annotations.SpecializedFunction; -import jdk.nashorn.internal.runtime.JSType; -import jdk.nashorn.internal.runtime.PropertyMap; -import jdk.nashorn.internal.runtime.ScriptObject; -import jdk.nashorn.internal.runtime.ScriptRuntime; - -/** - * <p> - * DataView builtin constructor. Based on the specification here: - * http://www.khronos.org/registry/typedarray/specs/latest/#8 - * </p> - * <p> - * An ArrayBuffer is a useful object for representing an arbitrary chunk of data. - * In many cases, such data will be read from disk or from the network, and will - * not follow the alignment restrictions that are imposed on the typed array views - * described earlier. In addition, the data will often be heterogeneous in nature - * and have a defined byte order. The DataView view provides a low-level interface - * for reading such data from and writing it to an ArrayBuffer. - * </p> - * <p> - * Regardless of the host computer's endianness, DataView reads or writes values - * to or from main memory with a specified endianness: big or little. - * </p> - */ -@ScriptClass("DataView") -public class NativeDataView extends ScriptObject { - // initialized by nasgen - private static PropertyMap $nasgenmap$; - - // inherited ArrayBufferView properties - - /** - * Underlying ArrayBuffer storage object - */ - @Property(attributes = Attribute.NON_ENUMERABLE_CONSTANT) - public final Object buffer; - - /** - * The offset in bytes from the start of the ArrayBuffer - */ - @Property(attributes = Attribute.NON_ENUMERABLE_CONSTANT) - public final int byteOffset; - - /** - * The number of bytes from the offset that this DataView will reference - */ - @Property(attributes = Attribute.NON_ENUMERABLE_CONSTANT) - public final int byteLength; - - // underlying ByteBuffer - private final ByteBuffer buf; - - private NativeDataView(final NativeArrayBuffer arrBuf) { - this(arrBuf, arrBuf.getBuffer(), 0); - } - - private NativeDataView(final NativeArrayBuffer arrBuf, final int offset) { - this(arrBuf, bufferFrom(arrBuf, offset), offset); - } - - private NativeDataView(final NativeArrayBuffer arrBuf, final int offset, final int length) { - this(arrBuf, bufferFrom(arrBuf, offset, length), offset, length); - } - - private NativeDataView(final NativeArrayBuffer arrBuf, final ByteBuffer buf, final int offset) { - this(arrBuf, buf, offset, buf.capacity() - offset); - } - - private NativeDataView(final NativeArrayBuffer arrBuf, final ByteBuffer buf, final int offset, final int length) { - super(Global.instance().getDataViewPrototype(), $nasgenmap$); - this.buffer = arrBuf; - this.byteOffset = offset; - this.byteLength = length; - this.buf = buf; - } - - /** - * Create a new DataView object using the passed ArrayBuffer for its - * storage. Optional byteOffset and byteLength can be used to limit the - * section of the buffer referenced. The byteOffset indicates the offset in - * bytes from the start of the ArrayBuffer, and the byteLength is the number - * of bytes from the offset that this DataView will reference. If both - * byteOffset and byteLength are omitted, the DataView spans the entire - * ArrayBuffer range. If the byteLength is omitted, the DataView extends from - * the given byteOffset until the end of the ArrayBuffer. - * - * If the given byteOffset and byteLength references an area beyond the end - * of the ArrayBuffer an exception is raised. - - * @param newObj if this constructor was invoked with 'new' or not - * @param self constructor function object - * @param args arguments to the constructor - * @return newly constructed DataView object - */ - @Constructor(arity = 1) - public static NativeDataView constructor(final boolean newObj, final Object self, final Object... args) { - if (args.length == 0 || !(args[0] instanceof NativeArrayBuffer)) { - throw typeError("not.an.arraybuffer.in.dataview"); - } - - final NativeArrayBuffer arrBuf = (NativeArrayBuffer)args[0]; - switch (args.length) { - case 1: - return new NativeDataView(arrBuf); - case 2: - return new NativeDataView(arrBuf, JSType.toInt32(args[1])); - default: - return new NativeDataView(arrBuf, JSType.toInt32(args[1]), JSType.toInt32(args[2])); - } - } - - /** - * Specialized version of DataView constructor - * - * @param newObj if this constructor was invoked with 'new' or not - * @param self constructor function object - * @param arrBuf underlying ArrayBuffer storage object - * @param offset offset in bytes from the start of the ArrayBuffer - * @return newly constructed DataView object - */ - @SpecializedFunction(isConstructor=true) - public static NativeDataView constructor(final boolean newObj, final Object self, final Object arrBuf, final int offset) { - if (!(arrBuf instanceof NativeArrayBuffer)) { - throw typeError("not.an.arraybuffer.in.dataview"); - } - return new NativeDataView((NativeArrayBuffer) arrBuf, offset); - } - - /** - * Specialized version of DataView constructor - * - * @param newObj if this constructor was invoked with 'new' or not - * @param self constructor function object - * @param arrBuf underlying ArrayBuffer storage object - * @param offset in bytes from the start of the ArrayBuffer - * @param length is the number of bytes from the offset that this DataView will reference - * @return newly constructed DataView object - */ - @SpecializedFunction(isConstructor=true) - public static NativeDataView constructor(final boolean newObj, final Object self, final Object arrBuf, final int offset, final int length) { - if (!(arrBuf instanceof NativeArrayBuffer)) { - throw typeError("not.an.arraybuffer.in.dataview"); - } - return new NativeDataView((NativeArrayBuffer) arrBuf, offset, length); - } - - // Gets the value of the given type at the specified byte offset - // from the start of the view. There is no alignment constraint; - // multi-byte values may be fetched from any offset. - // - // For multi-byte values, the optional littleEndian argument - // indicates whether a big-endian or little-endian value should be - // read. If false or undefined, a big-endian value is read. - // - // These methods raise an exception if they would read - // beyond the end of the view. - - /** - * Get 8-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 8-bit signed int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static int getInt8(final Object self, final Object byteOffset) { - try { - return getBuffer(self).get(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 8-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 8-bit signed int value at the byteOffset - */ - @SpecializedFunction - public static int getInt8(final Object self, final int byteOffset) { - try { - return getBuffer(self).get(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 8-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 8-bit unsigned int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static int getUint8(final Object self, final Object byteOffset) { - try { - return 0xFF & getBuffer(self).get(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 8-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 8-bit unsigned int value at the byteOffset - */ - @SpecializedFunction - public static int getUint8(final Object self, final int byteOffset) { - try { - return 0xFF & getBuffer(self).get(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 16-bit signed int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static int getInt16(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return getBuffer(self, littleEndian).getShort(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 16-bit signed int value at the byteOffset - */ - @SpecializedFunction - public static int getInt16(final Object self, final int byteOffset) { - try { - return getBuffer(self, false).getShort(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 16-bit signed int value at the byteOffset - */ - @SpecializedFunction - public static int getInt16(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return getBuffer(self, littleEndian).getShort(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 16-bit unsigned int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static int getUint16(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return 0xFFFF & getBuffer(self, littleEndian).getShort(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 16-bit unsigned int value at the byteOffset - */ - @SpecializedFunction - public static int getUint16(final Object self, final int byteOffset) { - try { - return 0xFFFF & getBuffer(self, false).getShort(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 16-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 16-bit unsigned int value at the byteOffset - */ - @SpecializedFunction - public static int getUint16(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return 0xFFFF & getBuffer(self, littleEndian).getShort(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit signed int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static int getInt32(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return getBuffer(self, littleEndian).getInt(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 32-bit signed int value at the byteOffset - */ - @SpecializedFunction - public static int getInt32(final Object self, final int byteOffset) { - try { - return getBuffer(self, false).getInt(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit signed int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit signed int value at the byteOffset - */ - @SpecializedFunction - public static int getInt32(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return getBuffer(self, littleEndian).getInt(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit unsigned int value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static long getUint32(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return 0xFFFFFFFFL & getBuffer(self, littleEndian).getInt(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 32-bit unsigned int value at the byteOffset - */ - @SpecializedFunction - public static long getUint32(final Object self, final int byteOffset) { - try { - return JSType.toUint32(getBuffer(self, false).getInt(JSType.toInt32(byteOffset))); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit unsigned int from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit unsigned int value at the byteOffset - */ - @SpecializedFunction - public static long getUint32(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return JSType.toUint32(getBuffer(self, littleEndian).getInt(JSType.toInt32(byteOffset))); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit float value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static double getFloat32(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return getBuffer(self, littleEndian).getFloat(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 32-bit float value at the byteOffset - */ - @SpecializedFunction - public static double getFloat32(final Object self, final int byteOffset) { - try { - return getBuffer(self, false).getFloat(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 32-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 32-bit float value at the byteOffset - */ - @SpecializedFunction - public static double getFloat32(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return getBuffer(self, littleEndian).getFloat(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 64-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 64-bit float value at the byteOffset - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static double getFloat64(final Object self, final Object byteOffset, final Object littleEndian) { - try { - return getBuffer(self, littleEndian).getDouble(JSType.toInt32(byteOffset)); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 64-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @return 64-bit float value at the byteOffset - */ - @SpecializedFunction - public static double getFloat64(final Object self, final int byteOffset) { - try { - return getBuffer(self, false).getDouble(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Get 64-bit float value from given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param littleEndian (optional) flag indicating whether to read in little endian order - * @return 64-bit float value at the byteOffset - */ - @SpecializedFunction - public static double getFloat64(final Object self, final int byteOffset, final boolean littleEndian) { - try { - return getBuffer(self, littleEndian).getDouble(byteOffset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - // Stores a value of the given type at the specified byte offset - // from the start of the view. There is no alignment constraint; - // multi-byte values may be stored at any offset. - // - // For multi-byte values, the optional littleEndian argument - // indicates whether the value should be stored in big-endian or - // little-endian byte order. If false or undefined, the value is - // stored in big-endian byte order. - // - // These methods raise an exception if they would write - // beyond the end of the view. - - /** - * Set 8-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param value byte value to set - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setInt8(final Object self, final Object byteOffset, final Object value) { - try { - getBuffer(self).put(JSType.toInt32(byteOffset), (byte)JSType.toInt32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 8-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to read from - * @param value byte value to set - * @return undefined - */ - @SpecializedFunction - public static Object setInt8(final Object self, final int byteOffset, final int value) { - try { - getBuffer(self).put(byteOffset, (byte)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 8-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value byte value to set - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setUint8(final Object self, final Object byteOffset, final Object value) { - try { - getBuffer(self).put(JSType.toInt32(byteOffset), (byte)JSType.toInt32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 8-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value byte value to set - * @return undefined - */ - @SpecializedFunction - public static Object setUint8(final Object self, final int byteOffset, final int value) { - try { - getBuffer(self).put(byteOffset, (byte)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setInt16(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putShort(JSType.toInt32(byteOffset), (short)JSType.toInt32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @return undefined - */ - @SpecializedFunction - public static Object setInt16(final Object self, final int byteOffset, final int value) { - try { - getBuffer(self, false).putShort(byteOffset, (short)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setInt16(final Object self, final int byteOffset, final int value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putShort(byteOffset, (short)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setUint16(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putShort(JSType.toInt32(byteOffset), (short)JSType.toInt32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @return undefined - */ - @SpecializedFunction - public static Object setUint16(final Object self, final int byteOffset, final int value) { - try { - getBuffer(self, false).putShort(byteOffset, (short)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 16-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value short value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setUint16(final Object self, final int byteOffset, final int value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putShort(byteOffset, (short)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setInt32(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putInt(JSType.toInt32(byteOffset), JSType.toInt32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @return undefined - */ - @SpecializedFunction - public static Object setInt32(final Object self, final int byteOffset, final int value) { - try { - getBuffer(self, false).putInt(byteOffset, value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit signed int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setInt32(final Object self, final int byteOffset, final int value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putInt(byteOffset, value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setUint32(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putInt(JSType.toInt32(byteOffset), (int)JSType.toUint32(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @return undefined - */ - @SpecializedFunction - public static Object setUint32(final Object self, final int byteOffset, final long value) { - try { - getBuffer(self, false).putInt(byteOffset, (int)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit unsigned int at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value int value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setUint32(final Object self, final int byteOffset, final long value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putInt(byteOffset, (int)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value float value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setFloat32(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putFloat((int)JSType.toUint32(byteOffset), (float)JSType.toNumber(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value float value to set - * @return undefined - */ - @SpecializedFunction - public static Object setFloat32(final Object self, final int byteOffset, final double value) { - try { - getBuffer(self, false).putFloat(byteOffset, (float)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 32-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value float value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setFloat32(final Object self, final int byteOffset, final double value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putFloat(byteOffset, (float)value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 64-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value double value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object setFloat64(final Object self, final Object byteOffset, final Object value, final Object littleEndian) { - try { - getBuffer(self, littleEndian).putDouble((int)JSType.toUint32(byteOffset), JSType.toNumber(value)); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 64-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value double value to set - * @return undefined - */ - @SpecializedFunction - public static Object setFloat64(final Object self, final int byteOffset, final double value) { - try { - getBuffer(self, false).putDouble(byteOffset, value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - /** - * Set 64-bit float at the given byteOffset - * - * @param self DataView object - * @param byteOffset byte offset to write at - * @param value double value to set - * @param littleEndian (optional) flag indicating whether to write in little endian order - * @return undefined - */ - @SpecializedFunction - public static Object setFloat64(final Object self, final int byteOffset, final double value, final boolean littleEndian) { - try { - getBuffer(self, littleEndian).putDouble(byteOffset, value); - return UNDEFINED; - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.offset"); - } - } - - // internals only below this point - private static ByteBuffer bufferFrom(final NativeArrayBuffer nab, final int offset) { - try { - return nab.getBuffer(offset); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.constructor.offset"); - } - } - - private static ByteBuffer bufferFrom(final NativeArrayBuffer nab, final int offset, final int length) { - try { - return nab.getBuffer(offset, length); - } catch (final IllegalArgumentException iae) { - throw rangeError(iae, "dataview.constructor.offset"); - } - } - - private static NativeDataView checkSelf(final Object self) { - if (!(self instanceof NativeDataView)) { - throw typeError("not.an.arraybuffer.in.dataview", ScriptRuntime.safeToString(self)); - } - return (NativeDataView)self; - } - - private static ByteBuffer getBuffer(final Object self) { - return checkSelf(self).buf; - } - - private static ByteBuffer getBuffer(final Object self, final Object littleEndian) { - return getBuffer(self, JSType.toBoolean(littleEndian)); - } - - private static ByteBuffer getBuffer(final Object self, final boolean littleEndian) { - return getBuffer(self).order(littleEndian? ByteOrder.LITTLE_ENDIAN : ByteOrder.BIG_ENDIAN); - } -} |