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comparison graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/ArgumentsTest.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 5e3d1a68664e
children df1d665ca846
comparison
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9329:fa188fbfe3fe 9330:e162d9e32830
33 * 33 *
34 * <p> 34 * <p>
35 * A guest language can pass its own custom arguments when invoking a Truffle method by creating a 35 * A guest language can pass its own custom arguments when invoking a Truffle method by creating a
36 * subclass of {@link Arguments}. When invoking a call target with 36 * subclass of {@link Arguments}. When invoking a call target with
37 * {@link CallTarget#call(Arguments)}, the arguments can be passed. A Truffle node can access the 37 * {@link CallTarget#call(Arguments)}, the arguments can be passed. A Truffle node can access the
38 * arguments passed into the Truffle method by using {@link VirtualFrame#getArguments()}. 38 * arguments passed into the Truffle method by using {@link VirtualFrame#getArguments}.
39 * </p> 39 * </p>
40 * 40 *
41 * <p> 41 * <p>
42 * The arguments class should only contain fields that are declared as final. This allows the 42 * The arguments class should only contain fields that are declared as final. This allows the
43 * Truffle runtime to improve optimizations around guest language method calls. Also, the arguments 43 * Truffle runtime to improve optimizations around guest language method calls. Also, the arguments
95 TestArgumentNode(int index) { 95 TestArgumentNode(int index) {
96 this.index = index; 96 this.index = index;
97 } 97 }
98 98
99 int execute(VirtualFrame frame) { 99 int execute(VirtualFrame frame) {
100 return ((TestArguments) frame.getArguments()).values[index]; 100 return frame.getArguments(TestArguments.class).values[index];
101 } 101 }
102 } 102 }
103 } 103 }