net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Argument.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v0.5
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v05.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  ******************************************************************************/
  11 package net.sourceforge.phpdt.internal.compiler.ast;
  12
  13 import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
  14 import net.sourceforge.phpdt.internal.compiler.lookup.*;
  15
  16 public class Argument extends LocalDeclaration {
  17
  18         public Argument(char[] name, long posNom, TypeReference tr, int modifiers) {
  19
  20                 super(null, name, (int) (posNom >>> 32), (int) posNom);
  21                 this.modifiers = modifiers;
  22                 type = tr;
  23                 this.bits |= IsLocalDeclarationReachableMASK;
  24         }
  25
  26         public void bind(MethodScope scope, TypeBinding typeBinding, boolean used) {
  27
  28                 if (this.type != null)
  29                         this.type.binding = typeBinding;
  30                 // record the resolved type into the type reference
  31                 int modifierFlag = this.modifiers;
  32                 if ((this.binding = scope.duplicateName(this.name)) != null) {
  33                         //the name already exist....may carry on with the first binding ....
  34                         scope.problemReporter().redefineArgument(this);
  35                 } else {
  36                         scope.addLocalVariable(
  37                                 this.binding =
  38                                         new LocalVariableBinding(this, typeBinding, modifierFlag, true));
  39                         //true stand for argument instead of just local
  40                         if (typeBinding != null && isTypeUseDeprecated(typeBinding, scope))
  41                                 scope.problemReporter().deprecatedType(typeBinding, this.type);
  42                         this.binding.declaration = this;
  43                         this.binding.used = used;
  44                 }
  45         }
  46
  47         public TypeBinding resolveForCatch(BlockScope scope) {
  48
  49                 // resolution on an argument of a catch clause
  50                 // provide the scope with a side effect : insertion of a LOCAL
  51                 // that represents the argument. The type must be from JavaThrowable
  52
  53                 TypeBinding tb = type.resolveTypeExpecting(scope, scope.getJavaLangThrowable());
  54                 if (tb == null)
  55                         return null;
  56                 if ((binding = scope.duplicateName(name)) != null) {
  57                         // the name already exists....may carry on with the first binding ....
  58                         scope.problemReporter().redefineArgument(this);
  59                         return null;
  60                 }
  61                 binding = new LocalVariableBinding(this, tb, modifiers, false); // argument decl, but local var  (i.e. isArgument = false)
  62                 scope.addLocalVariable(binding);
  63                 binding.constant = NotAConstant;
  64                 return tb;
  65         }
  66
  67         public String toString(int tab) {
  68
  69                 String s = ""; //$NON-NLS-1$
  70                 if (modifiers != AccDefault) {
  71                         s += modifiersString(modifiers);
  72                 }
  73                 if (type == null) {
  74                         s += "<no type> "; //$NON-NLS-1$
  75                 } else {
  76                         s += type.toString(tab) + " "; //$NON-NLS-1$
  77                 }
  78                 s += new String(name);
  79                 return s;
  80         }
  81
  82         public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
  83
  84                 if (visitor.visit(this, scope)) {
  85                         if (type != null)
  86                                 type.traverse(visitor, scope);
  87                         if (initialization != null)
  88                                 initialization.traverse(visitor, scope);
  89                 }
  90                 visitor.endVisit(this, scope);
  91         }
  92 }