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/jEdit/tags/jedit-4-2-pre14/bsh/BSHArguments.java

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Java | 74 lines | 18 code | 6 blank | 50 comment | 3 complexity | 7482396dbe79d0e15ddcf2d0ae7421b9 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. class BSHArguments extends SimpleNode
  35. {
  36. BSHArguments(int id) { super(id); }
  37. /**
  38. This node holds a set of arguments for a method invocation or
  39. constructor call.
  40. Note: arguments are not currently allowed to be VOID.
  41. */
  42. /*
  43. Disallowing VOIDs here was an easy way to support the throwing of a
  44. more descriptive error message on use of an undefined argument to a
  45. method call (very common). If it ever turns out that we need to
  46. support that for some reason we'll have to re-evaluate how we get
  47. "meta-information" about the arguments in the various invoke() methods
  48. that take Object []. We could either pass BSHArguments down to
  49. overloaded forms of the methods or throw an exception subtype
  50. including the argument position back up, where the error message would
  51. be compounded.
  52. */
  53. public Object[] getArguments( CallStack callstack, Interpreter interpreter)
  54. throws EvalError
  55. {
  56. // evaluate each child
  57. Object[] args = new Object[jjtGetNumChildren()];
  58. for(int i = 0; i < args.length; i++)
  59. {
  60. args[i] = ((SimpleNode)jjtGetChild(i)).eval(callstack, interpreter);
  61. if ( args[i] == Primitive.VOID )
  62. throw new EvalError( "Undefined argument: " +
  63. ((SimpleNode)jjtGetChild(i)).getText(), this, callstack );
  64. }
  65. return args;
  66. }
  67. }