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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/Frame.java @ 9330:e162d9e32830

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Added a clazz parameter to Frame.getArguments in order to allow unsafe access to the arguments object (i.e., avoiding the null check and the type cast).
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 26 Apr 2013 17:15:10 +0200
parents 07f8d136a05e
children 0fccad3ce40d
comparison
equal deleted inserted replaced
9329:fa188fbfe3fe 9330:e162d9e32830
34 * @return the object describing the layout of this frame 34 * @return the object describing the layout of this frame
35 */ 35 */
36 FrameDescriptor getFrameDescriptor(); 36 FrameDescriptor getFrameDescriptor();
37 37
38 /** 38 /**
39 * Retrieves the arguments object from this frame. The runtime assumes that the arguments object
40 * is never null. Additionally, the runtime may assume that the given parameter indicating the
41 * class of the arguments object is correct. The runtime is not required to actually check the
42 * type of the arguments object. The parameter must be a value that can be reduced to a compile
43 * time constant.
44 *
45 * @param clazz the known type of the arguments object as a compile time constant
39 * @return the arguments used when calling this method 46 * @return the arguments used when calling this method
40 */ 47 */
41 Arguments getArguments(); 48 <T extends Arguments> T getArguments(Class<T> clazz);
42 49
43 /** 50 /**
44 * Read access to a local variable of type {@link Object}. 51 * Read access to a local variable of type {@link Object}.
45 * 52 *
46 * @param slot the slot of the local variable 53 * @param slot the slot of the local variable