platform/lang-impl/src/com/intellij/codeInsight/template/impl/Variable.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.codeInsight.template.impl;
  18
  19 import com.intellij.codeInsight.template.Expression;
  20
  21 public class Variable implements Cloneable {
  22   private final String myName;
  23   private boolean myAlwaysStopAt;
  24
  25   private String myExpressionString;
  26   private Expression myExpression = null;
  27
  28   private String myDefaultValueString;
  29   private Expression myDefaultValueExpression;
  30
  31   public Variable(String name, Expression expression, Expression defaultValueExpression, boolean alwaysStopAt) {
  32     myName = name;
  33     myExpression = expression;
  34     myDefaultValueExpression = defaultValueExpression;
  35     myAlwaysStopAt = alwaysStopAt;
  36   }
  37
  38   public Variable(String name, String expression, String defaultValueString, boolean alwaysStopAt) {
  39     myName = name;
  40     myExpressionString = expression;
  41     myDefaultValueString = defaultValueString;
  42     myAlwaysStopAt = alwaysStopAt;
  43   }
  44
  45   public String getExpressionString() {
  46     return myExpressionString;
  47   }
  48
  49   public void setExpressionString(String expressionString) {
  50     myExpressionString = expressionString;
  51     myExpression = null;
  52   }
  53
  54   public Expression getExpression() {
  55     if (myExpression == null) {
  56       if (myName.equals(TemplateImpl.SELECTION)) {
  57         myExpression = new SelectionNode();
  58       }
  59       else {
  60         myExpression = MacroParser.parse(myExpressionString);
  61       }
  62     }
  63     return myExpression;
  64   }
  65
  66   public String getDefaultValueString() {
  67     return myDefaultValueString;
  68   }
  69
  70   public void setDefaultValueString(String defaultValueString) {
  71     myDefaultValueString = defaultValueString;
  72     myDefaultValueExpression = null;
  73   }
  74
  75   public Expression getDefaultValueExpression() {
  76     if (myDefaultValueExpression == null) {
  77       myDefaultValueExpression = MacroParser.parse(myDefaultValueString);
  78     }
  79     return myDefaultValueExpression;
  80   }
  81
  82   public String getName() {
  83     return myName;
  84   }
  85
  86   public boolean isAlwaysStopAt() {
  87     if (myName.equals(TemplateImpl.SELECTION)) return false;
  88     return myAlwaysStopAt;
  89   }
  90
  91   public void setAlwaysStopAt(boolean alwaysStopAt) {
  92     myAlwaysStopAt = alwaysStopAt;
  93   }
  94
  95   public Object clone() {
  96     return new Variable(myName, myExpressionString, myDefaultValueString, myAlwaysStopAt);
  97   }
  98
  99   public boolean equals(Object o) {
 100     if (this == o) return true;
 101     if (!(o instanceof Variable)) return false;
 102
 103     final Variable variable = (Variable) o;
 104
 105     if (myAlwaysStopAt != variable.myAlwaysStopAt) return false;
 106     if (myDefaultValueString != null ? !myDefaultValueString.equals(variable.myDefaultValueString) : variable.myDefaultValueString != null) return false;
 107     if (myExpressionString != null ? !myExpressionString.equals(variable.myExpressionString) : variable.myExpressionString != null) return false;
 108     if (myName != null ? !myName.equals(variable.myName) : variable.myName != null) return false;
 109
 110     return true;
 111   }
 112
 113   public int hashCode() {
 114     int result;
 115     result = (myName != null ? myName.hashCode() : 0);
 116     result = 29 * result + (myAlwaysStopAt ? 1 : 0);
 117     result = 29 * result + (myExpressionString != null ? myExpressionString.hashCode() : 0);
 118     result = 29 * result + (myDefaultValueString != null ? myDefaultValueString.hashCode() : 0);
 119     return result;
 120   }
 121 }