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/*******************************************************************************
* Copyright (c) 2009 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 Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.core.dom.lrparser.action.gnu;
import static org.eclipse.cdt.core.parser.util.CollectionUtils.findFirstAndRemove;
import java.util.List;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.c.ICASTFieldDesignator;
import org.eclipse.cdt.core.dom.ast.c.ICASTSimpleDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.c.ICNodeFactory;
import org.eclipse.cdt.core.dom.ast.gnu.c.IGCCASTArrayRangeDesignator;
import org.eclipse.cdt.core.dom.lrparser.action.ITokenStream;
import org.eclipse.cdt.core.dom.lrparser.action.ScopedStack;
import org.eclipse.cdt.core.dom.lrparser.action.c99.C99BuildASTParserAction;
public class GCCBuildASTParserAction extends GNUBuildASTParserAction {
private final ICNodeFactory nodeFactory;
private C99BuildASTParserAction baseAction;
public GCCBuildASTParserAction(ITokenStream parser, ScopedStack<Object> astStack, ICNodeFactory nodeFactory) {
super(parser, astStack, nodeFactory);
this.nodeFactory = nodeFactory;
}
public void setBaseAction(C99BuildASTParserAction baseAction) {
this.baseAction = baseAction;
}
/**
* designator_base
* ::= identifier_token ':'
*/
public void consumeDesignatorField() {
IASTName name = createName(stream.getLeftIToken());
ICASTFieldDesignator designator = nodeFactory.newFieldDesignator(name);
setOffsetAndLength(designator);
astStack.push(designator);
}
/**
* designator ::= '[' constant_expression '...' constant_expression']'
*/
public void consumeDesignatorArray() {
IASTExpression ceiling = (IASTExpression) astStack.pop();
IASTExpression floor = (IASTExpression) astStack.pop();
IGCCASTArrayRangeDesignator designator = nodeFactory.newArrayRangeDesignatorGCC(floor, ceiling);
setOffsetAndLength(designator);
astStack.push(designator);
}
/**
* typeof_type_specifier
* ::= 'typeof' unary_expression
*
* typeof_declaration_specifiers
* ::= typeof_type_specifier
* | no_type_declaration_specifiers typeof_type_specifier
* | typeof_declaration_specifiers no_type_declaration_specifier
*
* declaration_specifiers
* ::= <openscope-ast> typeof_declaration_specifiers
*/
public void consumeDeclarationSpecifiersTypeof() {
List<Object> topScope = astStack.closeScope();
// There's an expression somewhere on the stack, find it
IASTExpression expr = findFirstAndRemove(topScope, IASTExpression.class);
ICASTSimpleDeclSpecifier declSpec = nodeFactory.newSimpleDeclSpecifierGCC(expr);
// now apply the rest of the specifiers
for(Object token : topScope) {
baseAction.setSpecifier(declSpec, token);
}
setOffsetAndLength(declSpec);
astStack.push(declSpec);
}
}
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