Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java @ 7711:960a15fea39a
Make materialized frame also being usable as a packed frame.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 05 Feb 2013 15:19:17 +0100 |
parents | 5e3d1a68664e |
children | 1a2d258d481a |
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--- a/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java Mon Feb 04 13:21:13 2013 +0100 +++ b/graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java Tue Feb 05 15:19:17 2013 +0100 @@ -132,4 +132,23 @@ void setDouble(FrameSlot slot, double value); void updateToLatestVersion(); + + /** + * Converts this virtual frame into a packed frame that has no longer direct access to the local + * variables. This packing is an important hint to the Truffle optimizer and therefore passing + * around a {@link PackedFrame} should be preferred over passing around a {@link VirtualFrame} + * when the probability that an unpacking will occur is low. + * + * @return the packed frame + */ + PackedFrame pack(); + + /** + * Materializes this frame, which allows it to be stored in a field or cast to + * {@link java.lang.Object}. The frame however looses the ability to be packed or to access the + * caller frame. + * + * @return the new materialized frame + */ + MaterializedFrame materialize(); }