15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.internal.objects;
27
28 import static jdk.nashorn.internal.codegen.CompilerConstants.specialCall;
29
30 import java.lang.invoke.MethodHandle;
31 import java.lang.invoke.MethodHandles;
32 import java.nio.ByteBuffer;
33 import java.nio.ByteOrder;
34 import java.nio.IntBuffer;
35 import jdk.nashorn.internal.objects.annotations.Attribute;
36 import jdk.nashorn.internal.objects.annotations.Constructor;
37 import jdk.nashorn.internal.objects.annotations.Function;
38 import jdk.nashorn.internal.objects.annotations.Property;
39 import jdk.nashorn.internal.objects.annotations.ScriptClass;
40 import jdk.nashorn.internal.objects.annotations.Where;
41 import jdk.nashorn.internal.runtime.JSType;
42 import jdk.nashorn.internal.runtime.PropertyMap;
43 import jdk.nashorn.internal.runtime.ScriptObject;
44 import jdk.nashorn.internal.runtime.arrays.ArrayData;
45 import jdk.nashorn.internal.runtime.arrays.TypedArrayData;
46
47 /**
48 * Uint32 array for TypedArray extension
49 */
50 @ScriptClass("Uint32Array")
51 public final class NativeUint32Array extends ArrayBufferView {
52 /**
53 * The size in bytes of each element in the array.
54 */
55 @Property(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_WRITABLE | Attribute.NOT_CONFIGURABLE, where = Where.CONSTRUCTOR)
56 public static final int BYTES_PER_ELEMENT = 4;
57
58 // initialized by nasgen
59 @SuppressWarnings("unused")
60 private static PropertyMap $nasgenmap$;
61
62 private static final Factory FACTORY = new Factory(BYTES_PER_ELEMENT) {
63 @Override
64 public ArrayBufferView construct(final NativeArrayBuffer buffer, final int byteBegin, final int length) {
65 return new NativeUint32Array(buffer, byteBegin, length);
66 }
67
68 @Override
69 public Uint32ArrayData createArrayData(final ByteBuffer nb, final int start, final int end) {
70 return new Uint32ArrayData(nb.order(ByteOrder.nativeOrder()).asIntBuffer(), start, end);
71 }
72
73 @Override
74 public String getClassName() {
75 return "Uint32Array";
76 }
77 };
78
79 private static final class Uint32ArrayData extends TypedArrayData<IntBuffer> {
80
81 private static final MethodHandle GET_ELEM = specialCall(MethodHandles.lookup(), Uint32ArrayData.class, "getElem", long.class, int.class).methodHandle();
82 private static final MethodHandle SET_ELEM = specialCall(MethodHandles.lookup(), Uint32ArrayData.class, "setElem", void.class, int.class, int.class).methodHandle();
83
84 private Uint32ArrayData(final IntBuffer nb, final int start, final int end) {
85 super(((IntBuffer)nb.position(start).limit(end)).slice(), end - start);
86 }
87
88 @Override
89 protected MethodHandle getGetElem() {
90 return GET_ELEM;
91 }
92
93 @Override
94 protected MethodHandle getSetElem() {
95 return SET_ELEM;
96 }
97
98 @Override
99 public MethodHandle getElementGetter(final Class<?> returnType, final int programPoint) {
100 if (returnType == int.class) {
101 return null;
102 }
103 return getContinuousElementGetter(getClass(), GET_ELEM, returnType, programPoint);
104 }
105
106 private long getElem(final int index) {
107 try {
108 return JSType.toUint32(nb.get(index));
109 } catch (final IndexOutOfBoundsException e) {
110 throw new ClassCastException(); //force relink - this works for unoptimistic too
111 }
112 }
113
114 private void setElem(final int index, final int elem) {
115 try {
116 if (index < nb.limit()) {
117 nb.put(index, elem);
118 }
119 } catch (final IndexOutOfBoundsException e) {
120 throw new ClassCastException();
121 }
122 }
123
124 @Override
125 public boolean isUnsigned() {
126 return true;
127 }
128
129 @Override
130 public Class<?> getElementType() {
131 return long.class;
132 }
133
134 @Override
135 public Class<?> getBoxedElementType() {
136 return Integer.class;
137 }
138
139 @Override
140 public int getInt(final int index) {
141 return (int)getLong(index);
142 }
143
144 @Override
145 public long getLong(final int index) {
146 return getElem(index);
147 }
148
149 @Override
150 public long getLongOptimistic(final int index, final int programPoint) {
151 return getElem(index);
152 }
153
154 @Override
155 public double getDouble(final int index) {
156 return getLong(index);
157 }
158
159 @Override
160 public double getDoubleOptimistic(final int index, final int programPoint) {
161 return getLong(index);
162 }
163
164 @Override
165 public Object getObject(final int index) {
166 return getLong(index);
167 }
168
169 @Override
170 public ArrayData set(final int index, final Object value, final boolean strict) {
171 return set(index, JSType.toInt32(value), strict);
172 }
173
174 @Override
175 public ArrayData set(final int index, final int value, final boolean strict) {
176 setElem(index, value);
177 return this;
178 }
179
180 @Override
181 public ArrayData set(final int index, final long value, final boolean strict) {
182 return set(index, (int)value, strict);
183 }
184
185 @Override
186 public ArrayData set(final int index, final double value, final boolean strict) {
187 return set(index, (int)value, strict);
188 }
189 }
190
191 /**
192 * Constructor
193 *
194 * @param newObj is this typed array instantiated with the new operator
195 * @param self self reference
196 * @param args args
197 *
198 * @return new typed array
199 */
200 @Constructor(arity = 1)
201 public static NativeUint32Array constructor(final boolean newObj, final Object self, final Object... args) {
202 return (NativeUint32Array)constructorImpl(newObj, args, FACTORY);
|
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.internal.objects;
27
28 import static jdk.nashorn.internal.codegen.CompilerConstants.specialCall;
29
30 import java.lang.invoke.MethodHandle;
31 import java.lang.invoke.MethodHandles;
32 import java.nio.ByteBuffer;
33 import java.nio.ByteOrder;
34 import java.nio.IntBuffer;
35 import jdk.nashorn.internal.codegen.types.Type;
36 import jdk.nashorn.internal.objects.annotations.Attribute;
37 import jdk.nashorn.internal.objects.annotations.Constructor;
38 import jdk.nashorn.internal.objects.annotations.Function;
39 import jdk.nashorn.internal.objects.annotations.Property;
40 import jdk.nashorn.internal.objects.annotations.ScriptClass;
41 import jdk.nashorn.internal.objects.annotations.Where;
42 import jdk.nashorn.internal.runtime.JSType;
43 import jdk.nashorn.internal.runtime.PropertyMap;
44 import jdk.nashorn.internal.runtime.ScriptObject;
45 import jdk.nashorn.internal.runtime.UnwarrantedOptimismException;
46 import jdk.nashorn.internal.runtime.arrays.ArrayData;
47 import jdk.nashorn.internal.runtime.arrays.TypedArrayData;
48
49 /**
50 * Uint32 array for TypedArray extension
51 */
52 @ScriptClass("Uint32Array")
53 public final class NativeUint32Array extends ArrayBufferView {
54 /**
55 * The size in bytes of each element in the array.
56 */
57 @Property(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_WRITABLE | Attribute.NOT_CONFIGURABLE, where = Where.CONSTRUCTOR)
58 public static final int BYTES_PER_ELEMENT = 4;
59
60 // initialized by nasgen
61 @SuppressWarnings("unused")
62 private static PropertyMap $nasgenmap$;
63
64 private static final Factory FACTORY = new Factory(BYTES_PER_ELEMENT) {
65 @Override
66 public ArrayBufferView construct(final NativeArrayBuffer buffer, final int byteBegin, final int length) {
67 return new NativeUint32Array(buffer, byteBegin, length);
68 }
69
70 @Override
71 public Uint32ArrayData createArrayData(final ByteBuffer nb, final int start, final int end) {
72 return new Uint32ArrayData(nb.order(ByteOrder.nativeOrder()).asIntBuffer(), start, end);
73 }
74
75 @Override
76 public String getClassName() {
77 return "Uint32Array";
78 }
79 };
80
81 private static final class Uint32ArrayData extends TypedArrayData<IntBuffer> {
82
83 private static final MethodHandle GET_ELEM = specialCall(MethodHandles.lookup(), Uint32ArrayData.class, "getElem", double.class, int.class).methodHandle();
84 private static final MethodHandle SET_ELEM = specialCall(MethodHandles.lookup(), Uint32ArrayData.class, "setElem", void.class, int.class, int.class).methodHandle();
85
86 private Uint32ArrayData(final IntBuffer nb, final int start, final int end) {
87 super(((IntBuffer)nb.position(start).limit(end)).slice(), end - start);
88 }
89
90 @Override
91 protected MethodHandle getGetElem() {
92 return GET_ELEM;
93 }
94
95 @Override
96 protected MethodHandle getSetElem() {
97 return SET_ELEM;
98 }
99
100 @Override
101 public MethodHandle getElementGetter(final Class<?> returnType, final int programPoint) {
102 if (returnType == int.class) {
103 return null;
104 }
105 return getContinuousElementGetter(getClass(), GET_ELEM, returnType, programPoint);
106 }
107
108 private int getRawElem(final int index) {
109 try {
110 return nb.get(index);
111 } catch (final IndexOutOfBoundsException e) {
112 throw new ClassCastException(); //force relink - this works for unoptimistic too
113 }
114 }
115
116 private double getElem(final int index) {
117 return JSType.toUint32(getRawElem(index));
118 }
119
120 private void setElem(final int index, final int elem) {
121 try {
122 if (index < nb.limit()) {
123 nb.put(index, elem);
124 }
125 } catch (final IndexOutOfBoundsException e) {
126 throw new ClassCastException();
127 }
128 }
129
130 @Override
131 public boolean isUnsigned() {
132 return true;
133 }
134
135 @Override
136 public Class<?> getElementType() {
137 return double.class;
138 }
139
140 @Override
141 public Class<?> getBoxedElementType() {
142 return Double.class;
143 }
144
145 @Override
146 public int getInt(final int index) {
147 return getRawElem(index);
148 }
149
150 @Override
151 public int getIntOptimistic(final int index, final int programPoint) {
152 return JSType.toUint32Optimistic(getRawElem(index), programPoint);
153 }
154
155 @Override
156 public double getDouble(final int index) {
157 return getElem(index);
158 }
159
160 @Override
161 public double getDoubleOptimistic(final int index, final int programPoint) {
162 return getElem(index);
163 }
164
165 @Override
166 public Object getObject(final int index) {
167 return getElem(index);
168 }
169
170 @Override
171 public ArrayData set(final int index, final Object value, final boolean strict) {
172 return set(index, JSType.toInt32(value), strict);
173 }
174
175 @Override
176 public ArrayData set(final int index, final int value, final boolean strict) {
177 setElem(index, value);
178 return this;
179 }
180
181 @Override
182 public ArrayData set(final int index, final double value, final boolean strict) {
183 return set(index, (int)value, strict);
184 }
185 }
186
187 /**
188 * Constructor
189 *
190 * @param newObj is this typed array instantiated with the new operator
191 * @param self self reference
192 * @param args args
193 *
194 * @return new typed array
195 */
196 @Constructor(arity = 1)
197 public static NativeUint32Array constructor(final boolean newObj, final Object self, final Object... args) {
198 return (NativeUint32Array)constructorImpl(newObj, args, FACTORY);
|