# HG changeset patch # User sundar # Date 1382443692 -19800 # Node ID 360761288b38f564b6fb719008a2fb712bdcffa6 # Parent d24a4fabdce1f9097128510827c1235fd69ec49d 8027024: String.prototype.charAt and charCodeAt do not evaluate 'self' and 'pos' arguments in right order Reviewed-by: jlaskey, attila, lagergren diff -r d24a4fabdce1 -r 360761288b38 src/jdk/nashorn/internal/objects/NativeString.java --- a/src/jdk/nashorn/internal/objects/NativeString.java Tue Oct 22 11:31:03 2013 +0200 +++ b/src/jdk/nashorn/internal/objects/NativeString.java Tue Oct 22 17:38:12 2013 +0530 @@ -505,7 +505,7 @@ */ @Function(attributes = Attribute.NOT_ENUMERABLE) public static Object charAt(final Object self, final Object pos) { - return charAt(self, JSType.toInteger(pos)); + return charAtImpl(checkObjectToString(self), JSType.toInteger(pos)); } /** @@ -527,7 +527,10 @@ */ @SpecializedFunction public static String charAt(final Object self, final int pos) { - final String str = checkObjectToString(self); + return charAtImpl(checkObjectToString(self), pos); + } + + private static String charAtImpl(final String str, final int pos) { return (pos < 0 || pos >= str.length()) ? "" : String.valueOf(str.charAt(pos)); } @@ -539,7 +542,7 @@ */ @Function(attributes = Attribute.NOT_ENUMERABLE) public static Object charCodeAt(final Object self, final Object pos) { - return charCodeAt(self, JSType.toInteger(pos)); + return charCodeAtImpl(checkObjectToString(self), JSType.toInteger(pos)); } /** @@ -561,7 +564,10 @@ */ @SpecializedFunction public static double charCodeAt(final Object self, final int pos) { - final String str = checkObjectToString(self); + return charCodeAtImpl(checkObjectToString(self), pos); + } + + private static double charCodeAtImpl(final String str, final int pos) { return (pos < 0 || pos >= str.length()) ? Double.NaN : str.charAt(pos); } diff -r d24a4fabdce1 -r 360761288b38 src/overview.html --- a/src/overview.html Tue Oct 22 11:31:03 2013 +0200 +++ b/src/overview.html Tue Oct 22 17:38:12 2013 +0530 @@ -108,6 +108,6 @@