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/jEdit/tags/jedit-4-0-pre3/bsh/BSHTernaryExpression.java

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Java | 60 lines | 16 code | 7 blank | 37 comment | 1 complexity | 17baa9f21cc0143ab8905c8d0ac98545 MD5 | raw file
Possible License(s): BSD-3-Clause, AGPL-1.0, Apache-2.0, LGPL-2.0, LGPL-3.0, GPL-2.0, CC-BY-SA-3.0, LGPL-2.1, GPL-3.0, MPL-2.0-no-copyleft-exception, IPL-1.0
  1. /*****************************************************************************
  2. * *
  3. * This file is part of the BeanShell Java Scripting distribution. *
  4. * Documentation and updates may be found at http://www.beanshell.org/ *
  5. * *
  6. * Sun Public License Notice: *
  7. * *
  8. * The contents of this file are subject to the Sun Public License Version *
  9. * 1.0 (the "License"); you may not use this file except in compliance with *
  10. * the License. A copy of the License is available at http://www.sun.com *
  11. * *
  12. * The Original Code is BeanShell. The Initial Developer of the Original *
  13. * Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright *
  14. * (C) 2000. All Rights Reserved. *
  15. * *
  16. * GNU Public License Notice: *
  17. * *
  18. * Alternatively, the contents of this file may be used under the terms of *
  19. * the GNU Lesser General Public License (the "LGPL"), in which case the *
  20. * provisions of LGPL are applicable instead of those above. If you wish to *
  21. * allow use of your version of this file only under the terms of the LGPL *
  22. * and not to allow others to use your version of this file under the SPL, *
  23. * indicate your decision by deleting the provisions above and replace *
  24. * them with the notice and other provisions required by the LGPL. If you *
  25. * do not delete the provisions above, a recipient may use your version of *
  26. * this file under either the SPL or the LGPL. *
  27. * *
  28. * Patrick Niemeyer (pat@pat.net) *
  29. * Author of Learning Java, O'Reilly & Associates *
  30. * http://www.pat.net/~pat/ *
  31. * *
  32. *****************************************************************************/
  33. package bsh;
  34. /**
  35. This class needs logic to prevent the right hand side of boolean logical
  36. expressions from being naively evaluated... e.g. for "foo && bar" bar
  37. should not be evaluated in the case where foo is true.
  38. */
  39. class BSHTernaryExpression extends SimpleNode {
  40. BSHTernaryExpression(int id) { super(id); }
  41. public Object eval( CallStack callstack, Interpreter interpreter)
  42. throws EvalError
  43. {
  44. SimpleNode
  45. cond = (SimpleNode)jjtGetChild(0),
  46. evalTrue = (SimpleNode)jjtGetChild(1),
  47. evalFalse = (SimpleNode)jjtGetChild(2);
  48. if ( BSHIfStatement.evaluateCondition( cond, callstack, interpreter ) )
  49. return evalTrue.eval( callstack, interpreter );
  50. else
  51. return evalFalse.eval( callstack, interpreter );
  52. }
  53. }