net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/TypeReference.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.BlockScope;
  15 import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
  16 import net.sourceforge.phpdt.internal.compiler.lookup.Scope;
  17 import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
  18
  19 public abstract class TypeReference extends Expression {
  20         public TypeBinding binding;
  21 public TypeReference() {
  22                 super () ;
  23                 }
  24 // allows us to trap completion & selection nodes
  25
  26 public void aboutToResolve(Scope scope) {}
  27 /*
  28  * Answer a base type reference (can be an array of base type).
  29  */
  30 public static final TypeReference baseTypeReference(int baseType, int dim) {
  31
  32         if (dim == 0) {
  33                 switch (baseType) {
  34                         case (T_void) :
  35                                 return new SingleTypeReference(VoidBinding.simpleName, 0);
  36                         case (T_boolean) :
  37                                 return new SingleTypeReference(BooleanBinding.simpleName, 0);
  38                         case (T_char) :
  39                                 return new SingleTypeReference(CharBinding.simpleName, 0);
  40                         case (T_float) :
  41                                 return new SingleTypeReference(FloatBinding.simpleName, 0);
  42                         case (T_double) :
  43                                 return new SingleTypeReference(DoubleBinding.simpleName, 0);
  44                         case (T_byte) :
  45                                 return new SingleTypeReference(ByteBinding.simpleName, 0);
  46                         case (T_short) :
  47                                 return new SingleTypeReference(ShortBinding.simpleName, 0);
  48                         case (T_int) :
  49                                 return new SingleTypeReference(IntBinding.simpleName, 0);
  50                         default : //T_long
  51                                 return new SingleTypeReference(LongBinding.simpleName, 0);
  52                 }
  53         }
  54         switch (baseType) {
  55                 case (T_void) :
  56                         return new ArrayTypeReference(VoidBinding.simpleName, dim, 0);
  57                 case (T_boolean) :
  58                         return new ArrayTypeReference(BooleanBinding.simpleName, dim, 0);
  59                 case (T_char) :
  60                         return new ArrayTypeReference(CharBinding.simpleName, dim, 0);
  61                 case (T_float) :
  62                         return new ArrayTypeReference(FloatBinding.simpleName, dim, 0);
  63                 case (T_double) :
  64                         return new ArrayTypeReference(DoubleBinding.simpleName, dim, 0);
  65                 case (T_byte) :
  66                         return new ArrayTypeReference(ByteBinding.simpleName, dim, 0);
  67                 case (T_short) :
  68                         return new ArrayTypeReference(ShortBinding.simpleName, dim, 0);
  69                 case (T_int) :
  70                         return new ArrayTypeReference(IntBinding.simpleName, dim, 0);
  71                 default : //T_long
  72                         return new ArrayTypeReference(LongBinding.simpleName, dim, 0);
  73         }
  74 }
  75 public abstract TypeReference copyDims(int dim);
  76 public int dimensions() {
  77         return 0;
  78 }
  79 public abstract TypeBinding getTypeBinding(Scope scope);
  80 /**
  81  * @return char[][]
  82  */
  83 public abstract char [][] getTypeName() ;
  84 public boolean isTypeReference() {
  85         return true;
  86 }
  87 public TypeBinding resolveType(BlockScope scope) {
  88         // handle the error here
  89         constant = NotAConstant;
  90         if (binding != null) { // is a shared type reference which was already resolved
  91                 if (!binding.isValidBinding())
  92                         return null; // already reported error
  93         } else {
  94                 binding = getTypeBinding(scope);
  95                 if (!binding.isValidBinding()) {
  96                         scope.problemReporter().invalidType(this, binding);
  97                         return null;
  98                 }
  99                 if (isTypeUseDeprecated(binding, scope))
 100                         scope.problemReporter().deprecatedType(binding, this);
 101         }
 102         return binding;
 103 }
 104 public abstract void traverse(IAbstractSyntaxTreeVisitor visitor, ClassScope classScope);
 105 }