X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/IfStatement.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/IfStatement.java
index f847463..824b721 100644
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/IfStatement.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/IfStatement.java
@@ -1,6 +1,13 @@
 package net.sourceforge.phpdt.internal.compiler.ast;
 
+import java.util.List;
+
 /**
+ * This is a if statement.
+ * if (condition)
+ *  statement
+ * (elseif statement)*
+ * else statement
  * @author Matthieu Casanova
  */
 public class IfStatement extends Statement {
@@ -11,7 +18,7 @@ public class IfStatement extends Statement {
   public Else els;
 
   /**
-   * Create a new If statement
+   * Create a new If statement.
    * @param condition the condition
    * @param statement a statement or a block of statements
    * @param elseifs the elseifs
@@ -19,12 +26,12 @@ public class IfStatement extends Statement {
    * @param sourceStart the starting position
    * @param sourceEnd the ending offset
    */
-  public IfStatement(Expression condition,
-                     Statement statement,
-                     ElseIf[] elseifs,
-                     Else els,
-                     int sourceStart,
-                     int sourceEnd) {
+  public IfStatement(final Expression condition,
+                     final Statement statement,
+                     final ElseIf[] elseifs,
+                     final Else els,
+                     final int sourceStart,
+                     final int sourceEnd) {
     super(sourceStart, sourceEnd);
     this.condition = condition;
     this.statement = statement;
@@ -37,21 +44,69 @@ public class IfStatement extends Statement {
    * @param tab how many tabs (not used here
    * @return a String
    */
-  public String toString(int tab) {
+  public String toString(final int tab) {
     final StringBuffer buff = new StringBuffer(tabString(tab));
-    buff.append("if (");
-    buff.append(condition.toStringExpression()).append(") ");
-    buff.append("\n");
-    buff.append(statement.toString(tab+1));
+    buff.append("if (");//$NON-NLS-1$
+    buff.append(condition.toStringExpression()).append(") ");//$NON-NLS-1$
+    if (statement != null) {
+      buff.append(statement.toString(tab + 1));
+    }
     for (int i = 0; i < elseifs.length; i++) {
-      ElseIf elseif = elseifs[i];
-      buff.append(elseif.toString(tab+1));
-      buff.append("\n");
+      buff.append(elseifs[i].toString(tab + 1));
+      buff.append("\n");//$NON-NLS-1$
     }
     if (els != null) {
-      buff.append(els.toString(tab+1));
-      buff.append('\n');
+      buff.append(els.toString(tab + 1));
+      buff.append("\n");//$NON-NLS-1$
     }
     return buff.toString();
   }
+
+  /**
+   * Get the variables from outside (parameters, globals ...)
+   */
+  public void getOutsideVariable(final List list) {
+    condition.getOutsideVariable(list); // todo: check if unuseful
+    if (statement != null) {
+      statement.getOutsideVariable(list);
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      elseifs[i].getOutsideVariable(list);
+    }
+    if (els != null) {
+      els.getOutsideVariable(list);
+    }
+  }
+
+  /**
+   * get the modified variables.
+   */
+  public void getModifiedVariable(final List list) {
+    condition.getModifiedVariable(list);
+    if (statement != null) {
+      statement.getModifiedVariable(list);
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      elseifs[i].getModifiedVariable(list);
+    }
+    if (els != null) {
+      els.getModifiedVariable(list);
+    }
+  }
+
+  /**
+   * Get the variables used.
+   */
+  public void getUsedVariable(final List list) {
+    condition.getUsedVariable(list);
+    if (statement != null) {
+      statement.getUsedVariable(list);
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      elseifs[i].getUsedVariable(list);
+    }
+    if (els != null) {
+      els.getUsedVariable(list);
+    }
+  }
 }