Source code: bsh/BSHMethodInvocation.java
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, *
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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 *
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27 * *
28 * Patrick Niemeyer (pat@pat.net) *
29 * Author of Learning Java, O'Reilly & Associates *
30 * http://www.pat.net/~pat/ *
31 * *
32 *****************************************************************************/
33
34
35 package bsh;
36
37 class BSHMethodInvocation extends SimpleNode
38 {
39
40 BSHMethodInvocation (int id) { super(id); }
41
42 /**
43 Evaluate the method invocation with the specified callstack and
44 interpreter
45 */
46 public Object eval( CallStack callstack, Interpreter interpreter )
47 throws EvalError
48 {
49 NameSpace namespace = callstack.top();
50 Name name = ((BSHAmbiguousName)jjtGetChild(0)).getName(namespace);
51 Object[] args =
52 ((BSHArguments)jjtGetChild(1)).getArguments(callstack, interpreter);
53
54 try {
55 return name.invokeMethod( interpreter, args, callstack, this);
56 } catch ( ReflectError e ) {
57 throw new EvalError(
58 "Error in method invocation: " + e.getMessage(),
59 this, callstack );
60 } catch ( java.lang.reflect.InvocationTargetException e )
61 {
62 String msg = "Method Invocation "+name;
63 Throwable te = e.getTargetException();
64
65 /*
66 Try to squeltch the native code stack trace if the exception
67 was caused by a reflective call back into the bsh interpreter
68 (e.g. eval() or source()
69 */
70 boolean isNative = true;
71 if ( te instanceof EvalError )
72 if ( te instanceof TargetError )
73 isNative = ((TargetError)te).inNativeCode();
74 else
75 isNative = false;
76
77 throw new TargetError( msg, te, this, callstack, isNative );
78 } catch ( UtilEvalError e ) {
79 throw e.toEvalError( this, callstack );
80 }
81 }
82 }
83