8012191: noSuchProperty can't cope with vararg functions

Thu, 11 Jul 2013 22:58:37 +0530

author
sundar
date
Thu, 11 Jul 2013 22:58:37 +0530
changeset 431
9083af56bbcb
parent 430
2c007a8bb0e7
child 432
289923785ada

8012191: noSuchProperty can't cope with vararg functions
Reviewed-by: jlaskey, attila

src/jdk/nashorn/internal/runtime/ScriptFunction.java file | annotate | diff | comparison | revisions
test/script/basic/JDK-8012191.js file | annotate | diff | comparison | revisions
test/script/basic/JDK-8012191.js.EXPECTED file | annotate | diff | comparison | revisions
     1.1 --- a/src/jdk/nashorn/internal/runtime/ScriptFunction.java	Thu Jul 11 18:33:33 2013 +0200
     1.2 +++ b/src/jdk/nashorn/internal/runtime/ScriptFunction.java	Thu Jul 11 22:58:37 2013 +0530
     1.3 @@ -71,6 +71,8 @@
     1.4  
     1.5      private static final MethodHandle IS_NONSTRICT_FUNCTION = findOwnMH("isNonStrictFunction", boolean.class, Object.class, Object.class, ScriptFunctionData.class);
     1.6  
     1.7 +    private static final MethodHandle ADD_ZEROTH_ELEMENT = findOwnMH("addZerothElement", Object[].class, Object[].class, Object.class);
     1.8 +
     1.9      /** The parent scope. */
    1.10      private final ScriptObject scope;
    1.11  
    1.12 @@ -546,7 +548,21 @@
    1.13      }
    1.14  
    1.15      private static MethodHandle bindToNameIfNeeded(final MethodHandle methodHandle, final String bindName) {
    1.16 -        return bindName == null ? methodHandle : MH.insertArguments(methodHandle, 1, bindName);
    1.17 +        if (bindName == null) {
    1.18 +            return methodHandle;
    1.19 +        } else {
    1.20 +            // if it is vararg method, we need to extend argument array with
    1.21 +            // a new zeroth element that is set to bindName value.
    1.22 +            final MethodType methodType = methodHandle.type();
    1.23 +            final int parameterCount = methodType.parameterCount();
    1.24 +            final boolean isVarArg = parameterCount > 0 && methodType.parameterType(parameterCount - 1).isArray();
    1.25 +
    1.26 +            if (isVarArg) {
    1.27 +                return MH.filterArguments(methodHandle, 1, MH.insertArguments(ADD_ZEROTH_ELEMENT, 1, bindName));
    1.28 +            } else {
    1.29 +                return MH.insertArguments(methodHandle, 1, bindName);
    1.30 +            }
    1.31 +        }
    1.32      }
    1.33  
    1.34      /**
    1.35 @@ -586,6 +602,16 @@
    1.36          return self instanceof ScriptFunction && ((ScriptFunction)self).data == data && arg instanceof ScriptObject;
    1.37      }
    1.38  
    1.39 +    @SuppressWarnings("unused")
    1.40 +    private static Object[] addZerothElement(final Object[] args, final Object value) {
    1.41 +        // extends input array with by adding new zeroth element
    1.42 +        final Object[] src = (args == null)? ScriptRuntime.EMPTY_ARRAY : args;
    1.43 +        final Object[] result = new Object[src.length + 1];
    1.44 +        System.arraycopy(src, 0, result, 1, src.length);
    1.45 +        result[0] = value;
    1.46 +        return result;
    1.47 +    }
    1.48 +
    1.49      private static MethodHandle findOwnMH(final String name, final Class<?> rtype, final Class<?>... types) {
    1.50          final Class<?>   own = ScriptFunction.class;
    1.51          final MethodType mt  = MH.type(rtype, types);
     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/test/script/basic/JDK-8012191.js	Thu Jul 11 22:58:37 2013 +0530
     2.3 @@ -0,0 +1,53 @@
     2.4 +/*
     2.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
     2.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     2.7 + * 
     2.8 + * This code is free software; you can redistribute it and/or modify it
     2.9 + * under the terms of the GNU General Public License version 2 only, as
    2.10 + * published by the Free Software Foundation.
    2.11 + * 
    2.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    2.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    2.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    2.15 + * version 2 for more details (a copy is included in the LICENSE file that
    2.16 + * accompanied this code).
    2.17 + * 
    2.18 + * You should have received a copy of the GNU General Public License version
    2.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    2.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    2.21 + * 
    2.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    2.23 + * or visit www.oracle.com if you need additional information or have any
    2.24 + * questions.
    2.25 + */
    2.26 +
    2.27 +/**
    2.28 + * JDK-8012191: noSuchProperty can't cope with vararg functions
    2.29 + *
    2.30 + * @test
    2.31 + * @run
    2.32 + */
    2.33 +
    2.34 +// ClassCastException: Cannot cast java.lang.String to [Ljava.lang.Object; 
    2.35 +__noSuchProperty__ = function() {
    2.36 +    print("obj.__noSuchProperty__ invoked for " + arguments[0]);
    2.37 +}
    2.38 +
    2.39 +nonExistent;
    2.40 +
    2.41 +// related issue was seen in JSAdapter __get__, __set__ too
    2.42 +var obj = new JSAdapter() {
    2.43 +    __put__: function() {
    2.44 +        print("JSAdapter.__put__");
    2.45 +        print(arguments[0]);
    2.46 +        print(arguments[1]);
    2.47 +    },
    2.48 +
    2.49 +    __get__: function() {
    2.50 +        print("JSAdapter.__get__");
    2.51 +        print(arguments[0]);
    2.52 +    }
    2.53 +};
    2.54 +
    2.55 +obj.x = 343;
    2.56 +obj.y
     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/test/script/basic/JDK-8012191.js.EXPECTED	Thu Jul 11 22:58:37 2013 +0530
     3.3 @@ -0,0 +1,6 @@
     3.4 +obj.__noSuchProperty__ invoked for nonExistent
     3.5 +JSAdapter.__put__
     3.6 +x
     3.7 +343
     3.8 +JSAdapter.__get__
     3.9 +y

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