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132
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1 /**
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2 * The runtime module exposes information specific to the D runtime code.
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3 *
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4 * Copyright: Copyright (C) 2005-2006 Sean Kelly. All rights reserved.
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5 * License: BSD style: $(LICENSE)
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6 * Authors: Sean Kelly
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7 */
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8 module tango.core.Runtime;
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9
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10
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11 private
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12 {
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13 extern (C) bool rt_isHalting();
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14
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15 alias bool function() moduleUnitTesterType;
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16 }
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17
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18
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19 ////////////////////////////////////////////////////////////////////////////////
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20 // Runtime
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21 ////////////////////////////////////////////////////////////////////////////////
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22
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23
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24 /**
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25 * This struct encapsulates all functionality related to the underlying runtime
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26 * module for the calling context.
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27 */
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28 struct Runtime
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29 {
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30 /**
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31 * Returns true if the runtime is halting. Under normal circumstances,
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32 * this will be set between the time that normal application code has
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33 * exited and before module dtors are called.
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34 *
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35 * Returns:
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36 * true if the runtime is halting.
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37 */
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38 static bool isHalting()
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39 {
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40 return rt_isHalting();
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41 }
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42
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43
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44 /**
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45 * Overrides the default module unit tester with a user-supplied version.
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46 *
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47 * Params:
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48 * h = The new unit tester. Set to null to use the default unit tester.
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49 */
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50 static void moduleUnitTester( moduleUnitTesterType h )
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51 {
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52 sm_moduleUnitTester = h;
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53 }
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54
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55
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56 private:
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57 static moduleUnitTesterType sm_moduleUnitTester = null;
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58 }
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59
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60
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61 ////////////////////////////////////////////////////////////////////////////////
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62 // Overridable Callbacks
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63 ////////////////////////////////////////////////////////////////////////////////
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64
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65
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66 /**
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67 * This routine is called by the runtime to run module unit tests on startup.
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68 * The user-supplied unit tester will be called if one has been supplied,
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69 * otherwise all unit tests will be run in sequence.
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70 *
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71 * Returns:
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72 * true if execution should continue after testing is complete and false if
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73 * not. Default behavior is to return true.
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74 */
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75 extern (C) bool runModuleUnitTests()
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76 {
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77 if( Runtime.sm_moduleUnitTester is null )
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78 {
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79 foreach( m; ModuleInfo )
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80 {
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81 if( m.unitTest )
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82 m.unitTest();
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83 }
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84 return true;
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85 }
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86 return Runtime.sm_moduleUnitTester();
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87 }
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