src/org/eclipse/jdt/internal/compiler/ast/TypeParameter.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2004 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.compiler.ast;
  12
  13 import org.eclipse.jdt.internal.compiler.ASTVisitor;
  14 import org.eclipse.jdt.internal.compiler.codegen.CodeStream;
  15 import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
  16 import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
  17 import org.eclipse.jdt.internal.compiler.lookup.Scope;
  18 import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
  19
  20 public class TypeParameter extends AbstractVariableDeclaration {
  21
  22     public TypeVariableBinding binding;
  23         public TypeReference[] bounds;
  24
  25         /**
  26          * @see org.eclipse.jdt.internal.compiler.ast.AbstractVariableDeclaration#getKind()
  27          */
  28         public int getKind() {
  29                 return TYPE_PARAMETER;
  30         }
  31
  32         public void checkBounds(Scope scope) {
  33
  34                 if (this.type != null) {
  35                         this.type.checkBounds(scope);
  36                 }
  37                 if (this.bounds != null) {
  38                         for (int i = 0, length = this.bounds.length; i < length; i++) {
  39                                 this.bounds[i].checkBounds(scope);
  40                         }
  41                 }
  42         }
  43
  44         public void resolve(ClassScope scope) {
  45             // TODO (philippe) add warning for detecting variable name collisions
  46         }
  47
  48         /* (non-Javadoc)
  49          * @see org.eclipse.jdt.internal.compiler.ast.AstNode#print(int, java.lang.StringBuffer)
  50          */
  51         public StringBuffer printStatement(int indent, StringBuffer output) {
  52                 output.append(this.name);
  53                 if (this.type != null) {
  54                         output.append(" extends "); //$NON-NLS-1$
  55                         this.type.print(0, output);
  56                 }
  57                 if (this.bounds != null){
  58                         for (int i = 0; i < this.bounds.length; i++) {
  59                                 output.append(" & "); //$NON-NLS-1$
  60                                 this.bounds[i].print(0, output);
  61                         }
  62                 }
  63                 return output;
  64         }
  65
  66         public void generateCode(BlockScope currentScope, CodeStream codeStream) {
  67             // nothing to do
  68         }
  69
  70         public void traverse(ASTVisitor visitor, BlockScope scope) {
  71                 if (visitor.visit(this, scope)) {
  72                         if (type != null) {
  73                                 type.traverse(visitor, scope);
  74                         }
  75                         if (bounds != null) {
  76                                 int boundsLength = this.bounds.length;
  77                                 for (int i = 0; i < boundsLength; i++) {
  78                                         this.bounds[i].traverse(visitor, scope);
  79                                 }
  80                         }
  81                 }
  82                 visitor.endVisit(this, scope);
  83         }
  84
  85         public void traverse(ASTVisitor visitor, ClassScope scope) {
  86                 if (visitor.visit(this, scope)) {
  87                         if (type != null) {
  88                                 type.traverse(visitor, scope);
  89                         }
  90                         if (bounds != null) {
  91                                 int boundsLength = this.bounds.length;
  92                                 for (int i = 0; i < boundsLength; i++) {
  93                                         this.bounds[i].traverse(visitor, scope);
  94                                 }
  95                         }
  96                 }
  97                 visitor.endVisit(this, scope);
  98         }
  99 }