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/*
*
* Copyright 2002-2004 The Ant-Contrib project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.antcontrib.cpptasks;
import java.io.File;
import java.util.Hashtable;
import java.util.Vector;
import net.sf.antcontrib.cpptasks.compiler.LinkerConfiguration;
import net.sf.antcontrib.cpptasks.compiler.ProcessorConfiguration;
import org.apache.tools.ant.BuildException;
/**
* This class matches each visited file with an appropriate compiler
*
* @author Curt Arnold
*/
public final class TargetMatcher implements FileVisitor {
private final LinkerConfiguration linker;
private final Vector objectFiles;
private final File outputDir;
private final ProcessorConfiguration[] processors;
private final File sourceFiles[] = new File[1];
private final Hashtable targets;
private final VersionInfo versionInfo;
private final CCTask task;
public TargetMatcher(final CCTask task, final File outputDir,
final ProcessorConfiguration[] processors, final LinkerConfiguration linker,
final Vector objectFiles, final Hashtable targets,
final VersionInfo versionInfo) {
this.task = task;
this.outputDir = outputDir;
this.processors = processors;
this.targets = targets;
this.linker = linker;
this.objectFiles = objectFiles;
this.versionInfo = versionInfo;
}
public void visit(final File parentDir, final String filename) throws BuildException {
final File fullPath = new File(parentDir, filename);
//
// see if any processor wants to bid
// on this one
ProcessorConfiguration selectedCompiler = null;
int bid = 0;
if (processors != null) {
for (int k = 0; k < processors.length; k++) {
final int newBid = processors[k].bid(fullPath.toString());
if (newBid > bid) {
bid = newBid;
selectedCompiler = processors[k];
}
}
}
//
// no processor interested in file
// log diagnostic message
if (bid <= 0) {
if (linker != null) {
final int linkerbid = linker.bid(filename);
if (linkerbid > 0) {
objectFiles.addElement(fullPath);
if (linkerbid == 1) {
task.log("Unrecognized file type " + fullPath.toString()
+ " will be passed to linker");
}
}
}
} else {
//
// get output file name
//
final String[] outputFileNames = selectedCompiler
.getOutputFileNames(filename, versionInfo);
sourceFiles[0] = fullPath;
//
// if there is some output for this task
// (that is a source file and not an header file)
//
for (int i = 0; i < outputFileNames.length; i++) {
//
// see if the same output file has already been registered
//
final TargetInfo previousTarget = (TargetInfo) targets
.get(outputFileNames[i]);
if (previousTarget == null) {
targets.put(outputFileNames[i], new TargetInfo(
selectedCompiler, sourceFiles, null, new File(
outputDir, outputFileNames[i]),
selectedCompiler.getRebuild()));
} else {
if (!previousTarget.getSources()[0].equals(sourceFiles[0])) {
final StringBuffer builder = new StringBuffer(
"Output filename conflict: ");
builder.append(outputFileNames[i]);
builder.append(" would be produced from ");
builder.append(previousTarget.getSources()[0]
.toString());
builder.append(" and ");
builder.append(filename);
throw new BuildException(builder.toString());
}
}
}
}
}
}
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