/jEdit/tags/jedit-4-3-pre5/bsh/BSHFormalParameters.java
Java | 115 lines | 57 code | 18 blank | 40 comment | 9 complexity | e4bc2d98d7523d63eede718945f946a9 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
- /*****************************************************************************
- * *
- * This file is part of the BeanShell Java Scripting distribution. *
- * Documentation and updates may be found at http://www.beanshell.org/ *
- * *
- * Sun Public License Notice: *
- * *
- * The contents of this file are subject to the Sun Public License Version *
- * 1.0 (the "License"); you may not use this file except in compliance with *
- * the License. A copy of the License is available at http://www.sun.com *
- * *
- * The Original Code is BeanShell. The Initial Developer of the Original *
- * Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright *
- * (C) 2000. All Rights Reserved. *
- * *
- * GNU Public License Notice: *
- * *
- * Alternatively, the contents of this file may be used under the terms of *
- * the GNU Lesser General Public License (the "LGPL"), in which case the *
- * provisions of LGPL are applicable instead of those above. If you wish to *
- * allow use of your version of this file only under the terms of the LGPL *
- * and not to allow others to use your version of this file under the SPL, *
- * indicate your decision by deleting the provisions above and replace *
- * them with the notice and other provisions required by the LGPL. If you *
- * do not delete the provisions above, a recipient may use your version of *
- * this file under either the SPL or the LGPL. *
- * *
- * Patrick Niemeyer (pat@pat.net) *
- * Author of Learning Java, O'Reilly & Associates *
- * http://www.pat.net/~pat/ *
- * *
- *****************************************************************************/
- package bsh;
- class BSHFormalParameters extends SimpleNode
- {
- private String [] paramNames;
- /**
- For loose type parameters the paramTypes are null.
- */
- // unsafe caching of types
- Class [] paramTypes;
- int numArgs;
- String [] typeDescriptors;
- BSHFormalParameters(int id) { super(id); }
- void insureParsed()
- {
- if ( paramNames != null )
- return;
- this.numArgs = jjtGetNumChildren();
- String [] paramNames = new String[numArgs];
- for(int i=0; i<numArgs; i++)
- {
- BSHFormalParameter param = (BSHFormalParameter)jjtGetChild(i);
- paramNames[i] = param.name;
- }
- this.paramNames = paramNames;
- }
- public String [] getParamNames() {
- insureParsed();
- return paramNames;
- }
- public String [] getTypeDescriptors(
- CallStack callstack, Interpreter interpreter, String defaultPackage )
- {
- if ( typeDescriptors != null )
- return typeDescriptors;
- insureParsed();
- String [] typeDesc = new String[numArgs];
- for(int i=0; i<numArgs; i++)
- {
- BSHFormalParameter param = (BSHFormalParameter)jjtGetChild(i);
- typeDesc[i] = param.getTypeDescriptor(
- callstack, interpreter, defaultPackage );
- }
- this.typeDescriptors = typeDesc;
- return typeDesc;
- }
- /**
- Evaluate the types.
- Note that type resolution does not require the interpreter instance.
- */
- public Object eval( CallStack callstack, Interpreter interpreter )
- throws EvalError
- {
- if ( paramTypes != null )
- return paramTypes;
- insureParsed();
- Class [] paramTypes = new Class[numArgs];
- for(int i=0; i<numArgs; i++)
- {
- BSHFormalParameter param = (BSHFormalParameter)jjtGetChild(i);
- paramTypes[i] = (Class)param.eval( callstack, interpreter );
- }
- this.paramTypes = paramTypes;
- return paramTypes;
- }
- }