| /******************************************************************************* |
| * Copyright (c) 2004, 2012 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 |
| * |
| * Contributors: |
| * IBM - Initial API and implementation |
| * Markus Schorn (Wind River Systems) |
| * Sergey Prigogin (Google) |
| *******************************************************************************/ |
| package org.eclipse.cdt.internal.core.dom.parser.c; |
| |
| import org.eclipse.cdt.core.dom.ast.ASTVisitor; |
| import org.eclipse.cdt.core.dom.ast.IASTAttribute; |
| import org.eclipse.cdt.core.dom.ast.IASTDeclaration; |
| import org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement; |
| import org.eclipse.cdt.core.dom.ast.IASTNode; |
| import org.eclipse.cdt.core.dom.ast.IASTStatement; |
| import org.eclipse.cdt.core.dom.ast.IScope; |
| import org.eclipse.cdt.core.parser.util.ArrayUtil; |
| import org.eclipse.cdt.internal.core.dom.parser.ASTAmbiguousNode; |
| import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousStatement; |
| import org.eclipse.cdt.internal.core.dom.parser.IASTInternalScope; |
| import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPASTInternalScope; |
| |
| public class CASTAmbiguousStatement extends ASTAmbiguousNode implements IASTAmbiguousStatement { |
| private IASTStatement[] stmts = new IASTStatement[2]; |
| private int stmtsPos= -1; |
| private IScope fScope; |
| private IASTDeclaration fDeclaration; |
| |
| public CASTAmbiguousStatement(IASTStatement... statements) { |
| for (IASTStatement s : statements) |
| addStatement(s); |
| } |
| |
| @Override |
| protected void beforeResolution() { |
| // Populate containing scope, so that it will not be affected by the alternative |
| // branches. |
| fScope= CVisitor.getContainingScope(this); |
| if (fScope instanceof ICPPASTInternalScope) { |
| ((ICPPASTInternalScope) fScope).populateCache(); |
| } |
| } |
| |
| @Override |
| protected void beforeAlternative(IASTNode alternative) { |
| cleanupScope(); |
| if (alternative instanceof IASTDeclarationStatement) { |
| if (fScope instanceof CScope) { |
| fDeclaration = ((IASTDeclarationStatement) alternative).getDeclaration(); |
| ((CScope) fScope).collectNames(fDeclaration); |
| } |
| } |
| } |
| |
| private void cleanupScope() { |
| if (fScope instanceof IASTInternalScope && fDeclaration != null) { |
| ((IASTInternalScope) fScope).removeNestedFromCache(fDeclaration); |
| } |
| } |
| |
| @Override |
| protected void afterResolution(ASTVisitor resolver, IASTNode best) { |
| beforeAlternative(best); |
| fDeclaration= null; |
| fScope= null; |
| } |
| |
| @Override |
| public void addStatement(IASTStatement s) { |
| assertNotFrozen(); |
| if (s != null) { |
| stmts = ArrayUtil.appendAt(IASTStatement.class, stmts, ++stmtsPos, s); |
| s.setParent(this); |
| s.setPropertyInParent(STATEMENT); |
| } |
| } |
| |
| @Override |
| public IASTStatement[] getStatements() { |
| stmts = ArrayUtil.trimAt(IASTStatement.class, stmts, stmtsPos); |
| return stmts; |
| } |
| |
| @Override |
| public IASTAttribute[] getAttributes() { |
| return IASTAttribute.EMPTY_ATTRIBUTE_ARRAY; |
| } |
| |
| @Override |
| public void addAttribute(IASTAttribute attribute) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public IASTNode[] getNodes() { |
| return getStatements(); |
| } |
| |
| @Override |
| public IASTStatement copy() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public IASTStatement copy(CopyStyle style) { |
| throw new UnsupportedOperationException(); |
| } |
| } |