[9] RFR (M): 8050166: Get rid of some package-private methods on arguments in j.l.i.MethodHandle (original) (raw)
Vladimir Ivanov vladimir.x.ivanov at oracle.com
Wed Jul 16 10:53:36 UTC 2014
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Paul, thanks for review.
On 7/16/14 12:34 PM, Paul Sandoz wrote:
On Jul 14, 2014, at 4:04 PM, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:
http://cr.openjdk.java.net/~vlivanov/8050166/webrev.00/ https://bugs.openjdk.java.net/browse/JDK-8050166
Get rid of the following methods in j.l.i.MethodHandle: * convertArguments(MethodType newType) * bindArgument(int pos, BasicType basicType, Object value) * bindReceiver(Object receiver) * dropArguments(MethodType srcType, int pos, int drops) * permuteArguments(MethodType newType, int[] reorder) Testing: jdk/java/lang/invoke, jdk/java/util/streams, nashorn, octane w/ "-ea -esa" and COMPILETHRESHOLD={0,30}. Looks good. Minor points, take it or leave it: MethodHandles. permuteArgumentChecks Might be more preferable for permuteArgumentChecks to return true or false and do the "throw newIllegalArgumentException" on a false return. Then if would play better with it's use in the assert, since it can throw an assertion error. assert target == originalTarget; assert permuteArgumentChecks(reorder, newType, target.type()) : "bad reorder array: "+Arrays.toString(reorder) It's incorrect to split the assert. It's either target & reorder are unchanged or new values pass all checks. And if exception is thrown outside permuteArgumentChecks, we lose detailed error message.
So, I'd leave this code as is.
MethodHandles.insertArgumentPrimitive
Might be more consistent to always use a return value in the switch: 2258 switch (w) { 2259 default: intValue = ValueConversions.widenSubword(value); break; 2260 case INT: intValue = (int)value; break; default: return result.bindArgumentI(pos, ValueConversions.widenSubword(value)); case INT: return result.bindArgumentI(pos, (int)value); Agree. Fixed.
Best regards, Vladimir Ivanov
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