a lot of fixes

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / ast / IfStatement.java

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 aebef7b..cb6c88b 100644 (file)
--- 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
@@ -1,5 +1,8 @@
 package net.sourceforge.phpdt.internal.compiler.ast;
 
+import java.util.List;
+import java.util.ArrayList;
+
 /**
  * This is a if statement.
  * if (condition)
@@ -16,7 +19,7 @@ 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
@@ -24,12 +27,12 @@ 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;
@@ -42,21 +45,78 @@ 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 ...)
+   * @return the variables from outside
+   */
+  public List getOutsideVariable() {
+    final ArrayList list = new ArrayList();
+    list.addAll(condition.getOutsideVariable()); // todo: check if unuseful
+    if (statement != null) {
+      list.addAll(statement.getOutsideVariable());
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      list.addAll(elseifs[i].getOutsideVariable());
+    }
+    if (els != null) {
+      list.addAll(els.getOutsideVariable());
+    }
+    return list;
+  }
+
+  /**
+   * get the modified variables.
+   * @return the variables from we change value
+   */
+  public List getModifiedVariable() {
+    final ArrayList list = new ArrayList();
+    list.addAll(condition.getModifiedVariable());
+    if (statement != null) {
+      list.addAll(statement.getModifiedVariable());
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      list.addAll(elseifs[i].getModifiedVariable());
+    }
+    if (els != null) {
+      list.addAll(els.getModifiedVariable());
+    }
+    return list;
+  }
+
+  /**
+   * Get the variables used.
+   * @return the variables used
+   */
+  public List getUsedVariable() {
+    final ArrayList list = new ArrayList();
+    list.addAll(condition.getUsedVariable());
+    if (statement != null) {
+      list.addAll(statement.getUsedVariable());
+    }
+    for (int i = 0; i < elseifs.length; i++) {
+      list.addAll(elseifs[i].getUsedVariable());
+    }
+    if (els != null) {
+      list.addAll(els.getUsedVariable());
+    }
+    return list;
+  }
 }