| /******************************************************************************* |
| * Copyright (c) 2000, 2016 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.compiler.lookup; |
| |
| import org.eclipse.dltk.compiler.env.lookup.Scope; |
| |
| public class BlockScope extends Scope { |
| |
| public Scope[] subscopes = new Scope[1]; // need access from code assist |
| public int subscopeCount = 0; // need access from code assist |
| |
| public BlockScope(BlockScope parent) { |
| this(parent, true); |
| } |
| |
| public BlockScope(BlockScope parent, boolean addToParentScope) { |
| this(Scope.BLOCK_SCOPE, parent); |
| |
| if (addToParentScope) { |
| parent.addSubscope(this); |
| } |
| } |
| |
| public BlockScope(BlockScope parent, int variableCount) { |
| this(Scope.BLOCK_SCOPE, parent); |
| parent.addSubscope(this); |
| } |
| |
| protected BlockScope(int kind, Scope parent) { |
| super(kind, parent); |
| } |
| |
| public void addSubscope(Scope childScope) { |
| if (this.subscopeCount == this.subscopes.length) |
| System.arraycopy(this.subscopes, 0, |
| (this.subscopes = new Scope[this.subscopeCount * 2]), 0, |
| this.subscopeCount); |
| this.subscopes[this.subscopeCount++] = childScope; |
| } |
| |
| /* |
| * Answer the index of this scope relatively to its parent. For method |
| * scope, answers -1 (not a classScope relative position) |
| */ |
| public int scopeIndex() { |
| if (this instanceof MethodScope) |
| return -1; |
| BlockScope parentScope = (BlockScope) this.parent; |
| Scope[] parentSubscopes = parentScope.subscopes; |
| for (int i = 0, max = parentScope.subscopeCount; i < max; i++) { |
| if (parentSubscopes[i] == this) |
| return i; |
| } |
| return -1; |
| } |
| |
| @Override |
| public String toString() { |
| return toString(0); |
| } |
| |
| public String toString(int tab) { |
| String s = ""; //$NON-NLS-1$ |
| for (int i = 0; i < this.subscopeCount; i++) |
| if (this.subscopes[i] instanceof BlockScope) |
| s += ((BlockScope) this.subscopes[i]).toString(tab + 1) + "\n"; //$NON-NLS-1$ |
| return s; |
| } |
| } |