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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Block.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Block.java
index b3ef5d1..d2371be 100644
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Block.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Block.java
@@ -1,7 +1,10 @@
 package net.sourceforge.phpdt.internal.compiler.ast;
 
+import java.util.List;
+import java.util.ArrayList;
+
 /**
- * A Block is
+ * A Block.
  * {
  * statements
  * }.
@@ -18,30 +21,72 @@ public class Block extends Statement {
    * @param sourceStart starting offset
    * @param sourceEnd ending offset
    */
-  public Block(Statement[] statements,int sourceStart, int sourceEnd) {
+  public Block(final Statement[] statements,
+               final int sourceStart,
+               final int sourceEnd) {
     super(sourceStart, sourceEnd);
     this.statements = statements;
   }
 
+  /**
+   * tell if the block is empty.
+   * @return the block is empty if there are no statements in it
+   */
   public boolean isEmptyBlock() {
     return statements == null;
   }
 
   /**
    * Return the block as String.
-    * @param tab how many tabs
+   * @param tab how many tabs
    * @return the string representation of the block
    */
-  public String toString(int tab) {
+  public String toString(final int tab) {
     final String s = AstNode.tabString(tab);
     final StringBuffer buff = new StringBuffer(s);
     buff.append("{\n"); //$NON-NLS-1$
     if (this.statements != null) {
       for (int i = 0; i < statements.length; i++) {
-          buff.append(statements[i].toString(tab+1)).append(";\n");//$NON-NLS-1$
+        buff.append(statements[i].toString(tab + 1)).append(";\n");//$NON-NLS-1$
       }
     }
     buff.append("}\n"); //$NON-NLS-1$
     return buff.toString();
   }
+
+  /**
+   * Get the variables from outside (parameters, globals ...)
+   * @return the variables from outside
+   */
+  public List getOutsideVariable() {
+    final ArrayList list = new ArrayList();
+    for (int i = 0; i < statements.length; i++) {
+      list.addAll(statements[i].getOutsideVariable());
+    }
+    return list;
+  }
+
+  /**
+   * get the modified variables.
+   * @return the variables from we change value
+   */
+  public List getModifiedVariable() {
+    final ArrayList list = new ArrayList();
+    for (int i = 0; i < statements.length; i++) {
+      list.addAll(statements[i].getModifiedVariable());
+    }
+    return list;
+  }
+
+  /**
+   * Get the variables used.
+   * @return the variables used
+   */
+  public List getUsedVariable() {
+    final ArrayList list = new ArrayList();
+    for (int i = 0; i < statements.length; i++) {
+      list.addAll(statements[i].getUsedVariable());
+    }
+    return list;
+  }
 }