8 * particular file as subject to the "Classpath" exception as provided 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.api.scripting; 27 28 import java.lang.invoke.MethodHandle; 29 import jdk.internal.dynalink.beans.StaticClass; 30 import jdk.internal.dynalink.linker.LinkerServices; 31 import jdk.nashorn.internal.runtime.Context; 32 import jdk.nashorn.internal.runtime.ScriptFunction; 33 import jdk.nashorn.internal.runtime.ScriptObject; 34 import jdk.nashorn.internal.runtime.ScriptRuntime; 35 import jdk.nashorn.internal.runtime.linker.Bootstrap; 36 37 /** 38 * Utilities that are to be called from script code. 39 */ 40 public final class ScriptUtils { 41 private ScriptUtils() {} 42 43 /** 44 * Returns AST as JSON compatible string. This is used to 45 * implement "parse" function in resources/parse.js script. 46 * 47 * @param code code to be parsed 52 public static String parse(final String code, final String name, final boolean includeLoc) { 53 return ScriptRuntime.parse(code, name, includeLoc); 54 } 55 56 /** 57 * Method which converts javascript types to java types for the 58 * String.format method (jrunscript function sprintf). 59 * 60 * @param format a format string 61 * @param args arguments referenced by the format specifiers in format 62 * @return a formatted string 63 */ 64 public static String format(final String format, final Object[] args) { 65 return Formatter.format(format, args); 66 } 67 68 /** 69 * Create a wrapper function that calls {@code func} synchronized on {@code sync} or, if that is undefined, 70 * {@code self}. Used to implement "sync" function in resources/mozilla_compat.js. 71 * 72 * @param func the function to invoke 73 * @param sync the object to synchronize on 74 * @return a synchronizing wrapper function 75 */ 76 public static Object makeSynchronizedFunction(final ScriptFunction func, final Object sync) { 77 return func.makeSynchronizedFunction(sync); 78 } 79 80 /** 81 * Make a script object mirror on given object if needed. 82 * 83 * @param obj object to be wrapped 84 * @return wrapped object 85 */ 86 public static Object wrap(final Object obj) { 87 if (obj instanceof ScriptObject) { 88 return ScriptObjectMirror.wrap(obj, Context.getGlobal()); 89 } 90 91 return obj; 92 } 93 94 /** 95 * Unwrap a script object mirror if needed. 96 * 97 * @param obj object to be unwrapped | 8 * particular file as subject to the "Classpath" exception as provided 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.api.scripting; 27 28 import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED; 29 30 import java.lang.invoke.MethodHandle; 31 import jdk.internal.dynalink.beans.StaticClass; 32 import jdk.internal.dynalink.linker.LinkerServices; 33 import jdk.nashorn.internal.runtime.Context; 34 import jdk.nashorn.internal.runtime.ScriptFunction; 35 import jdk.nashorn.internal.runtime.ScriptObject; 36 import jdk.nashorn.internal.runtime.ScriptRuntime; 37 import jdk.nashorn.internal.runtime.linker.Bootstrap; 38 39 /** 40 * Utilities that are to be called from script code. 41 */ 42 public final class ScriptUtils { 43 private ScriptUtils() {} 44 45 /** 46 * Returns AST as JSON compatible string. This is used to 47 * implement "parse" function in resources/parse.js script. 48 * 49 * @param code code to be parsed 54 public static String parse(final String code, final String name, final boolean includeLoc) { 55 return ScriptRuntime.parse(code, name, includeLoc); 56 } 57 58 /** 59 * Method which converts javascript types to java types for the 60 * String.format method (jrunscript function sprintf). 61 * 62 * @param format a format string 63 * @param args arguments referenced by the format specifiers in format 64 * @return a formatted string 65 */ 66 public static String format(final String format, final Object[] args) { 67 return Formatter.format(format, args); 68 } 69 70 /** 71 * Create a wrapper function that calls {@code func} synchronized on {@code sync} or, if that is undefined, 72 * {@code self}. Used to implement "sync" function in resources/mozilla_compat.js. 73 * 74 * @param func the function to wrap 75 * @param sync the object to synchronize on 76 * @return a synchronizing wrapper function 77 */ 78 public static Object makeSynchronizedFunction(final Object func, final Object sync) { 79 return func instanceof ScriptFunction? 80 ((ScriptFunction)func).makeSynchronizedFunction(sync) : UNDEFINED; 81 } 82 83 /** 84 * Make a script object mirror on given object if needed. 85 * 86 * @param obj object to be wrapped 87 * @return wrapped object 88 */ 89 public static Object wrap(final Object obj) { 90 if (obj instanceof ScriptObject) { 91 return ScriptObjectMirror.wrap(obj, Context.getGlobal()); 92 } 93 94 return obj; 95 } 96 97 /** 98 * Unwrap a script object mirror if needed. 99 * 100 * @param obj object to be unwrapped |