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comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLContext.java @ 13882:afd6fa5e8229

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SL: Feedback from reviewers
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 05 Feb 2014 08:02:15 -0800
parents 64c77f0577bb
children f675818d9ad0
comparison
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13881:272a166a9574 13882:afd6fa5e8229
37 * The run-time state of SL during execution. One context is instantiated before any source code is 37 * The run-time state of SL during execution. One context is instantiated before any source code is
38 * parsed, and this context is passed around to all methods that need access to it. For example, the 38 * parsed, and this context is passed around to all methods that need access to it. For example, the
39 * context is used during {@link SLNodeFactory parsing} and by {@link SLBuiltinNode#getContext() 39 * context is used during {@link SLNodeFactory parsing} and by {@link SLBuiltinNode#getContext()
40 * builtin functions}. 40 * builtin functions}.
41 * <p> 41 * <p>
42 * It would be an error to have two different context instances at the same. From a software 42 * It would be an error to have two different context instances during the execution of one script.
43 * engineering point of view, it is better to pass around this encapsulated context object instead 43 * However, if two separate scripts run in one Java VM at the same time, they have a different
44 * of storing the data in static Java fields. 44 * context. Therefore, the context is not a singleton.
45 */ 45 */
46 public final class SLContext { 46 public final class SLContext {
47 private final SourceManager sourceManager; 47 private final SourceManager sourceManager;
48 private final BufferedReader input; 48 private final BufferedReader input;
49 private final PrintStream output; 49 private final PrintStream output;