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https://github.com/eclipse-cdt/cdt
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Glue code to use the new parser capabilities.
This commit is contained in:
Alain Magloire
parent
80f69509e8
commit
507b7ea2fc
1 changed files with 260 additions and 0 deletions
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/*******************************************************************************
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Common Public License v0.5
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/cpl-v05.html
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*
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* Contributors:
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* QnX Software Systems - initial implementation base on code from rational/IBM
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******************************************************************************/
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package org.eclipse.cdt.internal.ui.compare;
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import java.util.Iterator;
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import java.util.List;
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import org.eclipse.cdt.core.model.ICElement;
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import org.eclipse.cdt.internal.core.dom.ClassKey;
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import org.eclipse.cdt.internal.core.dom.ClassSpecifier;
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import org.eclipse.cdt.internal.core.dom.DOMBuilder;
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import org.eclipse.cdt.internal.core.dom.Declaration;
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import org.eclipse.cdt.internal.core.dom.Declarator;
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import org.eclipse.cdt.internal.core.dom.EnumerationSpecifier;
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import org.eclipse.cdt.internal.core.dom.IOffsetable;
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import org.eclipse.cdt.internal.core.dom.Inclusion;
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import org.eclipse.cdt.internal.core.dom.Macro;
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import org.eclipse.cdt.internal.core.dom.NamespaceDefinition;
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import org.eclipse.cdt.internal.core.dom.ParameterDeclarationClause;
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import org.eclipse.cdt.internal.core.dom.SimpleDeclaration;
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import org.eclipse.cdt.internal.core.dom.TemplateDeclaration;
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import org.eclipse.cdt.internal.core.dom.TranslationUnit;
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import org.eclipse.cdt.internal.core.dom.TypeSpecifier;
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import org.eclipse.cdt.internal.core.parser.Parser;
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import org.eclipse.cdt.internal.parser.IStructurizerCallback;
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/**
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* @author alain
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* TODO: this should be remove when the new parser provides proper callbacks.
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*
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*/
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public class ComparatorModelBuilder {
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IStructurizerCallback callback;
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String code;
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/**
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*/
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public ComparatorModelBuilder(IStructurizerCallback cb, String buffer) {
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callback = cb;
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code = buffer;
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}
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public void parse() {
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DOMBuilder domBuilder = new DOMBuilder();
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try {
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Parser parser = new Parser(code, domBuilder, true);
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parser.parse();
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} catch (Exception e) {
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callback.reportError(e);
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}
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generateModelElements(domBuilder.getTranslationUnit());
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}
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protected void generateModelElements(TranslationUnit tu){
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Iterator i = tu.iterateOffsetableElements();
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while (i.hasNext()){
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IOffsetable offsetable = (IOffsetable)i.next();
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if (offsetable instanceof Inclusion){
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createInclusion((Inclusion) offsetable);
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}
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else if (offsetable instanceof Macro){
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createMacro((Macro) offsetable);
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}else if(offsetable instanceof Declaration){
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generateModelElements ((Declaration) offsetable);
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}
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}
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}
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protected void generateModelElements (Declaration declaration){
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// Namespace Definition
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if (declaration instanceof NamespaceDefinition){
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NamespaceDefinition nsDef = (NamespaceDefinition) declaration;
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createNamespace(nsDef);
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List nsDeclarations = nsDef.getDeclarations();
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Iterator nsDecls = nsDeclarations.iterator();
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while (nsDecls.hasNext()){
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Declaration subNsDeclaration = (Declaration) nsDecls.next();
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generateModelElements(subNsDeclaration);
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}
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}// end Namespace Definition
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// Simple Declaration
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if (declaration instanceof SimpleDeclaration){
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SimpleDeclaration simpleDeclaration = (SimpleDeclaration) declaration;
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/*-------------------------------------------
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* Checking the type if it is a composite one
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*-------------------------------------------*/
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TypeSpecifier typeSpec = simpleDeclaration.getTypeSpecifier();
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// Enumeration
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if (typeSpec instanceof EnumerationSpecifier){
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EnumerationSpecifier enumSpecifier = (EnumerationSpecifier) typeSpec;
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createEnumeration (enumSpecifier);
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} else if (typeSpec instanceof ClassSpecifier){ // Structure
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ClassSpecifier classSpecifier = (ClassSpecifier) typeSpec;
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createClass (simpleDeclaration, classSpecifier, false);
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// create the sub declarations
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List declarations = classSpecifier.getDeclarations();
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Iterator j = declarations.iterator();
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while (j.hasNext()){
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Declaration subDeclaration = (Declaration)j.next();
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generateModelElements(subDeclaration);
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} // end while j
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}
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/*-----------------------------------------
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* Create declarators of simple declaration
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* ----------------------------------------*/
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List declarators = simpleDeclaration.getDeclarators();
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Iterator d = declarators.iterator();
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while (d.hasNext()){
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Declarator declarator = (Declarator)d.next();
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createElement(simpleDeclaration, declarator);
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} // end while d
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} // end if SimpleDeclaration
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// Template Declaration
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if(declaration instanceof TemplateDeclaration){
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TemplateDeclaration templateDeclaration = (TemplateDeclaration)declaration;
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SimpleDeclaration simpleDeclaration = (SimpleDeclaration)templateDeclaration.getDeclarations().get(0);
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TypeSpecifier typeSpec = simpleDeclaration.getTypeSpecifier();
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if (typeSpec instanceof ClassSpecifier){
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ClassSpecifier classSpecifier = (ClassSpecifier) typeSpec;
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createClass(simpleDeclaration, classSpecifier, true);
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// create the sub declarations
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List declarations = classSpecifier.getDeclarations();
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Iterator j = declarations.iterator();
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while (j.hasNext()){
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Declaration subDeclaration = (Declaration)j.next();
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generateModelElements(subDeclaration);
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} // end while j
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}
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List declarators = simpleDeclaration.getDeclarators();
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Iterator d = declarators.iterator();
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while (d.hasNext()){
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Declarator declarator = (Declarator)d.next();
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createTemplateElement(templateDeclaration, simpleDeclaration, declarator);
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} // end while d
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}// end Template Declaration
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}
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private void createElement(SimpleDeclaration simpleDeclaration, Declarator declarator){
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// typedef
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if (simpleDeclaration.getDeclSpecifier().isTypedef()){
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createTypeDef(declarator, simpleDeclaration);
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} else {
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ParameterDeclarationClause pdc = declarator.getParms();
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if (pdc == null){
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createVariableSpecification(simpleDeclaration, declarator);
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}
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else{
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createFunctionSpecification(simpleDeclaration, declarator, pdc, false);
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}
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}
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}
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private void createTemplateElement(TemplateDeclaration templateDeclaration, SimpleDeclaration simpleDeclaration, Declarator declarator){
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// TODO: no template in the old parser
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ParameterDeclarationClause pdc = declarator.getParms();
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if (pdc != null){
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createFunctionSpecification(simpleDeclaration, declarator, pdc, true);
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}
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}
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private void createInclusion(Inclusion inclusion){
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callback.includeDecl(inclusion.getName(), inclusion.getStartingOffset(), inclusion.getTotalLength(),0, 0);
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}
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private void createMacro(Macro macro){
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callback.defineDecl(macro.getName(), macro.getStartingOffset(), macro.getTotalLength(), 0, 0);
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}
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private void createNamespace(NamespaceDefinition nsDef){
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// TODO: the old parser callback does not know about namespace.
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}
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private void createEnumeration(EnumerationSpecifier enumSpecifier){
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callback.structDeclBegin(enumSpecifier.getName().toString(), ICElement.C_ENUMERATION,
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enumSpecifier.getName().getStartOffset(), enumSpecifier.getName().length(),
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enumSpecifier.getStartingOffset(), 0, 0);
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callback.structDeclEnd(enumSpecifier.getTotalLength(), 0);
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}
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private void createClass(SimpleDeclaration simpleDeclaration, ClassSpecifier classSpecifier, boolean isTemplate){
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// create element
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String className = (classSpecifier.getName() == null ) ? "" : classSpecifier.getName().toString();
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int kind;
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switch( classSpecifier.getClassKey() )
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{
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case ClassKey.t_class:
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kind = ICElement.C_CLASS;
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break;
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case ClassKey.t_struct:
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kind = ICElement.C_STRUCT;
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break;
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default:
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kind = ICElement.C_UNION;
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break;
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}
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// set element position
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if( classSpecifier.getName() != null )
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{
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callback.structDeclBegin(className, kind,
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classSpecifier.getName().getStartOffset(), classSpecifier.getName().length(),
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classSpecifier.getStartingOffset(), 0, 0);
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}
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else
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{
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callback.structDeclBegin(className, kind,
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classSpecifier.getClassKeyToken().getOffset(), classSpecifier.getClassKeyToken().getLength(),
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classSpecifier.getStartingOffset(), 0, 0);
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}
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callback.structDeclBegin(className, kind,
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classSpecifier.getClassKeyToken().getOffset(), classSpecifier.getClassKeyToken().getLength(),
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classSpecifier.getStartingOffset(), 0, 0);
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callback.structDeclEnd(classSpecifier.getTotalLength(), 0);
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}
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private void createTypeDef(Declarator declarator, SimpleDeclaration simpleDeclaration){
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// TODO:No typedef in the old callback
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String declaratorName = declarator.getName().toString();
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callback.fieldDecl(declaratorName,
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declarator.getName().getStartOffset(), declarator.getName().length(),
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simpleDeclaration.getStartingOffset(), simpleDeclaration.getTotalLength(),
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0, 0, 0);
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}
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private void createVariableSpecification(SimpleDeclaration simpleDeclaration, Declarator declarator){
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String declaratorName = declarator.getName().toString();
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callback.fieldDecl(declaratorName, declarator.getName().getStartOffset(), declarator.getName().length(),
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simpleDeclaration.getStartingOffset(), simpleDeclaration.getTotalLength(), 0, 0, 0);
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}
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private void createFunctionSpecification(SimpleDeclaration simpleDeclaration, Declarator declarator, ParameterDeclarationClause pdc, boolean isTemplate){
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String declaratorName = declarator.getName().toString();
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callback.functionDeclBegin(declaratorName,
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declarator.getName().getStartOffset(), declarator.getName().length(),
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simpleDeclaration.getStartingOffset(), 0, 0, 0);
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callback.functionDeclEnd(simpleDeclaration.getTotalLength(), 0, simpleDeclaration.isFunctionDefinition());
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}
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}
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