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/*******************************************************************************
* Copyright (c) 2002, 2008 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 Rational Software - Initial API and implementation
* Markus Schorn (Wind River Systems)
* Yuan Zhang / Beth Tibbitts (IBM Research)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;
import org.eclipse.cdt.core.dom.ILinkage;
import org.eclipse.cdt.core.dom.IName;
import org.eclipse.cdt.core.dom.ast.IASTArrayDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTArrayModifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTPointerOperator;
import org.eclipse.cdt.core.dom.ast.IASTStatement;
import org.eclipse.cdt.core.dom.ast.IASTTypeId;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IMacroBinding;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator;
import org.eclipse.cdt.core.dom.ast.c.CASTVisitor;
import org.eclipse.cdt.core.dom.ast.c.ICASTDesignator;
import org.eclipse.cdt.core.parser.ParserLanguage;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.internal.core.dom.Linkage;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.ASTTranslationUnit;
/**
* C-specific implementation of a translation unit.
*/
public class CASTTranslationUnit extends ASTTranslationUnit {
private CScope compilationUnit = null;
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.core.dom.ast.IASTTranslationUnit#getScope()
*/
public IScope getScope() {
if (compilationUnit == null)
compilationUnit = new CScope(this);
return compilationUnit;
}
public IASTName[] getDeclarationsInAST(IBinding binding) {
if (binding instanceof IMacroBinding) {
return getMacroDefinitionsInAST((IMacroBinding) binding);
}
return CVisitor.getDeclarations(this, binding);
}
public IASTName[] getDefinitionsInAST(IBinding binding) {
if (binding instanceof IMacroBinding) {
return getMacroDefinitionsInAST((IMacroBinding) binding);
}
IName[] names = CVisitor.getDeclarations(this, binding);
for (int i = 0; i < names.length; i++) {
if (!names[i].isDefinition())
names[i] = null;
}
// nulls can be anywhere, don't use trim()
return (IASTName[])ArrayUtil.removeNulls(IASTName.class, names);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.core.dom.ast.IASTTranslationUnit#getReferences(org.eclipse.cdt.core.dom.ast.IBinding)
*/
public IASTName[] getReferences(IBinding binding) {
if (binding instanceof IMacroBinding)
return getMacroReferencesInAST((IMacroBinding) binding);
return CVisitor.getReferences(this, binding);
}
private class CFindNodeForOffsetAction extends CASTVisitor {
{
shouldVisitNames = true;
shouldVisitDeclarations = true;
shouldVisitInitializers = true;
shouldVisitParameterDeclarations = true;
shouldVisitDeclarators = true;
shouldVisitDeclSpecifiers = true;
shouldVisitDesignators = true;
shouldVisitExpressions = true;
shouldVisitStatements = true;
shouldVisitTypeIds = true;
shouldVisitEnumerators = true;
}
IASTNode foundNode = null;
int offset = 0;
int length = 0;
/**
*
*/
public CFindNodeForOffsetAction(int offset, int length) {
this.offset = offset;
this.length = length;
}
public int processNode(IASTNode node) {
if (foundNode != null)
return PROCESS_ABORT;
if (node instanceof ASTNode
&& ((ASTNode) node).getOffset() == offset
&& ((ASTNode) node).getLength() == length) {
foundNode = node;
return PROCESS_ABORT;
}
// skip the rest of this node if the selection is outside of its
// bounds
if (node instanceof ASTNode
&& offset > ((ASTNode) node).getOffset()
+ ((ASTNode) node).getLength())
return PROCESS_SKIP;
return PROCESS_CONTINUE;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.cpp.CPPVisitor.CPPBaseVisitorAction#processDeclaration(org.eclipse.cdt.core.dom.ast.IASTDeclaration)
*/
@Override
public int visit(IASTDeclaration declaration) {
// use declarations to determine if the search has gone past the
// offset (i.e. don't know the order the visitor visits the nodes)
if (declaration instanceof ASTNode
&& ((ASTNode) declaration).getOffset() > offset)
return PROCESS_ABORT;
return processNode(declaration);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.cpp.CPPVisitor.CPPBaseVisitorAction#processDeclarator(org.eclipse.cdt.core.dom.ast.IASTDeclarator)
*/
@Override
public int visit(IASTDeclarator declarator) {
int ret = processNode(declarator);
IASTPointerOperator[] ops = declarator.getPointerOperators();
for (int i = 0; i < ops.length; i++)
processNode(ops[i]);
if (declarator instanceof IASTArrayDeclarator) {
IASTArrayModifier[] mods = ((IASTArrayDeclarator) declarator)
.getArrayModifiers();
for (int i = 0; i < mods.length; i++)
processNode(mods[i]);
}
return ret;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processDesignator(org.eclipse.cdt.core.dom.ast.c.ICASTDesignator)
*/
@Override
public int visit(ICASTDesignator designator) {
return processNode(designator);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processDeclSpecifier(org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier)
*/
@Override
public int visit(IASTDeclSpecifier declSpec) {
return processNode(declSpec);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processEnumerator(org.eclipse.cdt.core.dom.ast.IASTEnumerationSpecifier.IASTEnumerator)
*/
@Override
public int visit(IASTEnumerator enumerator) {
return processNode(enumerator);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processExpression(org.eclipse.cdt.core.dom.ast.IASTExpression)
*/
@Override
public int visit(IASTExpression expression) {
return processNode(expression);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processInitializer(org.eclipse.cdt.core.dom.ast.IASTInitializer)
*/
@Override
public int visit(IASTInitializer initializer) {
return processNode(initializer);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processName(org.eclipse.cdt.core.dom.ast.IASTName)
*/
@Override
public int visit(IASTName name) {
if (name.toString() != null)
return processNode(name);
return PROCESS_CONTINUE;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processParameterDeclaration(org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration)
*/
@Override
public int visit(
IASTParameterDeclaration parameterDeclaration) {
return processNode(parameterDeclaration);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processStatement(org.eclipse.cdt.core.dom.ast.IASTStatement)
*/
@Override
public int visit(IASTStatement statement) {
return processNode(statement);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.c.CVisitor.CBaseVisitorAction#processTypeId(org.eclipse.cdt.core.dom.ast.IASTTypeId)
*/
@Override
public int visit(IASTTypeId typeId) {
return processNode(typeId);
}
public IASTNode getNode() {
return foundNode;
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.core.dom.ast.IASTTranslationUnit#getNodeForLocation(org.eclipse.cdt.core.dom.ast.IASTNodeLocation)
*/
public IASTNode selectNodeForLocation(String path, int realOffset, int realLength) {
IASTNode result= null;
if (fLocationResolver != null) {
int start= fLocationResolver.getSequenceNumberForFileOffset(path, realOffset);
if (start >= 0) {
int length= realLength < 1 ? 0 :
fLocationResolver.getSequenceNumberForFileOffset(path, realOffset+realLength-1) + 1 - start;
result= fLocationResolver.findSurroundingPreprocessorNode(start, length);
if (result == null) {
CFindNodeForOffsetAction nodeFinder = new CFindNodeForOffsetAction(start, length);
accept(nodeFinder);
result = nodeFinder.getNode();
}
}
}
return result;
}
public ParserLanguage getParserLanguage() {
return ParserLanguage.C;
}
public ILinkage getLinkage() {
return Linkage.C_LINKAGE;
}
}
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