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

   1 package net.sourceforge.phpdt.internal.compiler.ast;
   2
   3 /**
   4  * Any expression that have an operator.
   5  * @author Matthieu Casanova
   6  */
   7 public abstract class OperatorExpression
   8         extends Expression
   9         implements OperatorIds {
  10
  11     public int operator;
  12
  13     public OperatorExpression(int operator, int sourceStart, int sourceEnd) {
  14         super(sourceStart, sourceEnd);
  15         this.operator = operator;
  16     }
  17
  18     public String operatorToString() {
  19         switch (operator) {
  20             case EQUAL_EQUAL:
  21                 return "=="; //$NON-NLS-1$
  22             case LESS_EQUAL:
  23                 return "<="; //$NON-NLS-1$
  24             case GREATER_EQUAL:
  25                 return ">="; //$NON-NLS-1$
  26             case NOT_EQUAL:
  27                 return "!="; //$NON-NLS-1$
  28             case LEFT_SHIFT:
  29                 return "<<"; //$NON-NLS-1$
  30             case RIGHT_SHIFT:
  31                 return ">>"; //$NON-NLS-1$
  32             case UNSIGNED_RIGHT_SHIFT:
  33                 return ">>>"; //$NON-NLS-1$
  34             case OR_OR:
  35                 return "||"; //$NON-NLS-1$
  36             case AND_AND:
  37                 return "&&"; //$NON-NLS-1$
  38             case PLUS:
  39                 return "+"; //$NON-NLS-1$
  40             case MINUS:
  41                 return "-"; //$NON-NLS-1$
  42             case NOT:
  43                 return "!"; //$NON-NLS-1$
  44             case REMAINDER:
  45                 return "%"; //$NON-NLS-1$
  46             case XOR:
  47                 return "^"; //$NON-NLS-1$
  48             case AND:
  49                 return "&"; //$NON-NLS-1$
  50             case MULTIPLY:
  51                 return "*"; //$NON-NLS-1$
  52             case OR:
  53                 return "|"; //$NON-NLS-1$
  54             case TWIDDLE:
  55                 return "~"; //$NON-NLS-1$
  56             case DIVIDE:
  57                 return "/"; //$NON-NLS-1$
  58             case GREATER:
  59                 return ">"; //$NON-NLS-1$
  60             case LESS:
  61                 return "<"; //$NON-NLS-1$
  62             case ORL:
  63                 return "OR"; //$NON-NLS-1$
  64             case ANDL:
  65                 return "AND"; //$NON-NLS-1$
  66             case DOT:
  67                 return "."; //$NON-NLS-1$
  68             case DIF:
  69                 return "<>"; //$NON-NLS-1$
  70             case BANG_EQUAL_EQUAL:
  71                 return "!=="; //$NON-NLS-1$
  72             case EQUAL_EQUAL_EQUAL:
  73                 return "==="; //$NON-NLS-1$
  74             case EQUAL:
  75                 return "="; //$NON-NLS-1$
  76             case AT:
  77                 return "@"; //$NON-NLS-1$
  78         }
  79         ;
  80         return "unknown operator"; //$NON-NLS-1$
  81     }
  82
  83     public String toStringExpression() {
  84         //subclass redefine toStringExpressionNoParenthesis()
  85         return "(" + toStringExpressionNoParenthesis() + ")";  //$NON-NLS-2$ //$NON-NLS-1$
  86     }
  87
  88     public abstract String toStringExpressionNoParenthesis();
  89 }