8026039: future strict names are allowed as function name and argument name of a strict function

Tue, 08 Oct 2013 14:57:31 +0200

author
sundar
date
Tue, 08 Oct 2013 14:57:31 +0200
changeset 594
19dba6637f20
parent 593
025e2ff9e91b
child 595
c9921761903b

8026039: future strict names are allowed as function name and argument name of a strict function
Reviewed-by: hannesw, jlaskey

src/jdk/nashorn/internal/ir/IdentNode.java file | annotate | diff | comparison | revisions
src/jdk/nashorn/internal/parser/AbstractParser.java file | annotate | diff | comparison | revisions
src/jdk/nashorn/internal/parser/Parser.java file | annotate | diff | comparison | revisions
test/script/error/JDK-8026039.js file | annotate | diff | comparison | revisions
test/script/error/JDK-8026039.js.EXPECTED file | annotate | diff | comparison | revisions
     1.1 --- a/src/jdk/nashorn/internal/ir/IdentNode.java	Tue Oct 08 13:11:15 2013 +0200
     1.2 +++ b/src/jdk/nashorn/internal/ir/IdentNode.java	Tue Oct 08 14:57:31 2013 +0200
     1.3 @@ -40,9 +40,10 @@
     1.4   */
     1.5  @Immutable
     1.6  public final class IdentNode extends Expression implements PropertyKey, TypeOverride<IdentNode>, FunctionCall {
     1.7 -    private static final int PROPERTY_NAME    = 1 << 0;
     1.8 -    private static final int INITIALIZED_HERE = 1 << 1;
     1.9 -    private static final int FUNCTION         = 1 << 2;
    1.10 +    private static final int PROPERTY_NAME     = 1 << 0;
    1.11 +    private static final int INITIALIZED_HERE  = 1 << 1;
    1.12 +    private static final int FUNCTION          = 1 << 2;
    1.13 +    private static final int FUTURESTRICT_NAME = 1 << 3;
    1.14  
    1.15      /** Identifier. */
    1.16      private final String name;
    1.17 @@ -197,6 +198,25 @@
    1.18      }
    1.19  
    1.20      /**
    1.21 +     * Check if this IdentNode is a future strict name
    1.22 +     * @return true if this is a future strict name
    1.23 +     */
    1.24 +    public boolean isFutureStrictName() {
    1.25 +        return (flags & FUTURESTRICT_NAME) != 0;
    1.26 +    }
    1.27 +
    1.28 +    /**
    1.29 +     * Flag this IdentNode as a future strict name
    1.30 +     * @return a node equivalent to this one except for the requested change.
    1.31 +     */
    1.32 +    public IdentNode setIsFutureStrictName() {
    1.33 +        if (isFutureStrictName()) {
    1.34 +            return this;
    1.35 +        }
    1.36 +        return new IdentNode(this, name, callSiteType, flags | FUTURESTRICT_NAME);
    1.37 +    }
    1.38 +
    1.39 +    /**
    1.40       * Helper function for local def analysis.
    1.41       * @return true if IdentNode is initialized on creation
    1.42       */
     2.1 --- a/src/jdk/nashorn/internal/parser/AbstractParser.java	Tue Oct 08 13:11:15 2013 +0200
     2.2 +++ b/src/jdk/nashorn/internal/parser/AbstractParser.java	Tue Oct 08 14:57:31 2013 +0200
     2.3 @@ -378,7 +378,7 @@
     2.4              next();
     2.5  
     2.6              // Create IDENT node.
     2.7 -            return new IdentNode(identToken, finish, ident);
     2.8 +            return new IdentNode(identToken, finish, ident).setIsFutureStrictName();
     2.9          }
    2.10  
    2.11          // Get IDENT.
     3.1 --- a/src/jdk/nashorn/internal/parser/Parser.java	Tue Oct 08 13:11:15 2013 +0200
     3.2 +++ b/src/jdk/nashorn/internal/parser/Parser.java	Tue Oct 08 14:57:31 2013 +0200
     3.3 @@ -909,6 +909,10 @@
     3.4              default:
     3.5                  break;
     3.6              }
     3.7 +
     3.8 +            if (ident.isFutureStrictName()) {
     3.9 +                throw error(AbstractParser.message("strict.name", ident.getName(), contextString), ident.getToken());
    3.10 +            }
    3.11          }
    3.12      }
    3.13  
     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/test/script/error/JDK-8026039.js	Tue Oct 08 14:57:31 2013 +0200
     4.3 @@ -0,0 +1,32 @@
     4.4 +/*
     4.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
     4.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4.7 + * 
     4.8 + * This code is free software; you can redistribute it and/or modify it
     4.9 + * under the terms of the GNU General Public License version 2 only, as
    4.10 + * published by the Free Software Foundation.
    4.11 + * 
    4.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    4.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    4.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    4.15 + * version 2 for more details (a copy is included in the LICENSE file that
    4.16 + * accompanied this code).
    4.17 + * 
    4.18 + * You should have received a copy of the GNU General Public License version
    4.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    4.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    4.21 + * 
    4.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    4.23 + * or visit www.oracle.com if you need additional information or have any
    4.24 + * questions.
    4.25 + */
    4.26 +
    4.27 +/**
    4.28 + * JDK-8026039: future strict names are allowed as function name and argument name of a strict function
    4.29 + *
    4.30 + * @test/compile-error
    4.31 + */
    4.32 +
    4.33 +function public() {"use strict"}
    4.34 +
    4.35 +function f(public) {"use strict"} 
     5.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     5.2 +++ b/test/script/error/JDK-8026039.js.EXPECTED	Tue Oct 08 14:57:31 2013 +0200
     5.3 @@ -0,0 +1,9 @@
     5.4 +test/script/error/JDK-8026039.js:30:9 "public" cannot be used as function name in strict mode
     5.5 +function public() {"use strict"}
     5.6 +         ^
     5.7 +test/script/error/JDK-8026039.js:32:11 Expected ident but found public
     5.8 +function f(public) {"use strict"} 
     5.9 +           ^
    5.10 +test/script/error/JDK-8026039.js:33:0 Expected } but found eof
    5.11 +
    5.12 +^

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