9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
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.codegen;
27
28 import java.io.Serializable;
29 import java.util.Set;
30 import java.util.TreeSet;
31 import jdk.nashorn.internal.ir.CompileUnitHolder;
32
33 /**
34 * Used to track split class compilation. Note that instances of the class are serializable, but all fields are
35 * transient, making the serialized version of the class only useful for tracking the referential topology of other
36 * AST nodes referencing the same or different compile units. We do want to preserve this topology though as
37 * {@link CompileUnitHolder}s in a deserialized AST will undergo reinitialization.
38 */
39 public final class CompileUnit implements Comparable<CompileUnit>, Serializable {
40 private static final long serialVersionUID = 1L;
41
42 /** Current class name */
43 private transient final String className;
44
45 /** Current class generator */
46 private transient ClassEmitter classEmitter;
47
48 private transient long weight;
96 */
97 public void setUsed() {
98 this.isUsed = true;
99 }
100
101 /**
102 * Return the class that contains the code for this unit, null if not
103 * generated yet
104 *
105 * @return class with compile unit code
106 */
107 public Class<?> getCode() {
108 return clazz;
109 }
110
111 /**
112 * Set class when it exists. Only accessible from compiler
113 * @param clazz class with code for this compile unit
114 */
115 void setCode(final Class<?> clazz) {
116 clazz.getClass(); // null check
117 this.clazz = clazz;
118 // Revisit this - refactor to avoid null-ed out non-final fields
119 // null out emitter
120 this.classEmitter = null;
121 }
122
123 /**
124 * Add weight to this compile unit
125 * @param w weight to add
126 */
127 void addWeight(final long w) {
128 this.weight += w;
129 }
130
131 /**
132 * Check if this compile unit can hold {@code weight} more units of weight
133 * @param w weight to check if can be added
134 * @return true if weight fits in this compile unit
135 */
136 public boolean canHold(final long w) {
|
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
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.codegen;
27
28 import java.io.Serializable;
29 import java.util.Objects;
30 import java.util.Set;
31 import java.util.TreeSet;
32 import jdk.nashorn.internal.ir.CompileUnitHolder;
33
34 /**
35 * Used to track split class compilation. Note that instances of the class are serializable, but all fields are
36 * transient, making the serialized version of the class only useful for tracking the referential topology of other
37 * AST nodes referencing the same or different compile units. We do want to preserve this topology though as
38 * {@link CompileUnitHolder}s in a deserialized AST will undergo reinitialization.
39 */
40 public final class CompileUnit implements Comparable<CompileUnit>, Serializable {
41 private static final long serialVersionUID = 1L;
42
43 /** Current class name */
44 private transient final String className;
45
46 /** Current class generator */
47 private transient ClassEmitter classEmitter;
48
49 private transient long weight;
97 */
98 public void setUsed() {
99 this.isUsed = true;
100 }
101
102 /**
103 * Return the class that contains the code for this unit, null if not
104 * generated yet
105 *
106 * @return class with compile unit code
107 */
108 public Class<?> getCode() {
109 return clazz;
110 }
111
112 /**
113 * Set class when it exists. Only accessible from compiler
114 * @param clazz class with code for this compile unit
115 */
116 void setCode(final Class<?> clazz) {
117 Objects.requireNonNull(clazz);
118 this.clazz = clazz;
119 // Revisit this - refactor to avoid null-ed out non-final fields
120 // null out emitter
121 this.classEmitter = null;
122 }
123
124 /**
125 * Add weight to this compile unit
126 * @param w weight to add
127 */
128 void addWeight(final long w) {
129 this.weight += w;
130 }
131
132 /**
133 * Check if this compile unit can hold {@code weight} more units of weight
134 * @param w weight to check if can be added
135 * @return true if weight fits in this compile unit
136 */
137 public boolean canHold(final long w) {
|