Some minor changes

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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Statement.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Statement.java
index 82e84fd..ff647a4 100644 (file)
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Statement.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/ast/Statement.java
@@ -1,84 +1,27 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
- * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v0.5 
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v05.html
- * 
- * Contributors:
- *     IBM Corporation - initial API and implementation
- ******************************************************************************/
 package net.sourceforge.phpdt.internal.compiler.ast;
 
-import net.sourceforge.phpdt.internal.compiler.codegen.CodeStream;
-import net.sourceforge.phpdt.internal.compiler.codegen.Label;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
-import net.sourceforge.phpdt.internal.compiler.impl.Constant;
-import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
-import net.sourceforge.phpdt.internal.compiler.problem.ShouldNotImplement;
-import net.sourceforge.phpdt.internal.compiler.util.Util;
 
+/**
+ * A Statement.
+ * @author Matthieu Casanova
+ */
 public abstract class Statement extends AstNode {
-       
-       /**
-        * Statement constructor comment.
-        */
-       public Statement() {
-               super();
-       }
-       
-       public FlowInfo analyseCode(
-               BlockScope currentScope,
-               FlowContext flowContext,
-               FlowInfo flowInfo) {
-               return flowInfo;
-       }
-       
-       public void generateCode(BlockScope currentScope, CodeStream codeStream) {
-               throw new ShouldNotImplement(Util.bind("ast.missingStatement")); //$NON-NLS-1$
-       }
-       
-       public boolean isEmptyBlock() {
-               return false;
-       }
-       
-       public boolean isValidJavaStatement() {
-               //the use of this method should be avoid in most cases
-               //and is here mostly for documentation purpose.....
-               //while the parser is responsable for creating
-               //welled formed expression statement, which results
-               //in the fact that java-non-semantic-expression-used-as-statement
-               //should not be parsable...thus not being built.
-               //It sounds like the java grammar as help the compiler job in removing
-               //-by construction- some statement that would have no effect....
-               //(for example all expression that may do side-effects are valid statement
-               // -this is an appromative idea.....-)
 
-               return true;
-       }
-       
-       public void resolve(BlockScope scope) {
-       }
-       
-       public Constant resolveCase(
-               BlockScope scope,
-               TypeBinding testType,
-               SwitchStatement switchStatement) {
-               // statement within a switch that are not case are treated as normal statement.... 
+  /**
+   * Create a node giving starting and ending offset.
+   * @param sourceStart starting offset
+   * @param sourceEnd ending offset
+   */
+  protected Statement(final int sourceStart,
+                   final int sourceEnd) {
+    super(sourceStart, sourceEnd);
+  }
 
-               resolve(scope);
-               return null;
-       }
-       
-       public void resetStateForCodeGeneration() {
-       }
-       
-       /**
-        * INTERNAL USE ONLY.
-        * Do nothing by default. This is used to redirect inter-statements jumps.
-        */
-       public void branchChainTo(Label label) {
-       }
-}
\ No newline at end of file
+  /**
+   * Tell if the block is empty.
+   * @return a statement is not empty by default
+   */
+  public boolean isEmptyBlock() {
+    return false;
+  }
+}