/*
*
* Copyright 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.trolltech;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.FileReader;
import java.io.Reader;
import java.util.Vector;
import net.sf.antcontrib.cpptasks.OptimizationEnum;
import net.sf.antcontrib.cpptasks.compiler.CommandLineCompiler;
import net.sf.antcontrib.cpptasks.compiler.LinkType;
import net.sf.antcontrib.cpptasks.compiler.Linker;
import net.sf.antcontrib.cpptasks.compiler.Processor;
import net.sf.antcontrib.cpptasks.parser.CParser;
import net.sf.antcontrib.cpptasks.parser.Parser;
import net.sf.antcontrib.cpptasks.gcc.LdLinker;
import net.sf.antcontrib.cpptasks.VersionInfo;
import org.apache.tools.ant.types.Environment;
/**
* Adapter for the Trolltech Qt MOC Compiler.
*
* @author Curt Arnold
*/
public final class MetaObjectCompiler
extends CommandLineCompiler {
/**
* Singleton instance.
*/
private static final MetaObjectCompiler INSTANCE = new MetaObjectCompiler(
false, null);
/**
* Gets singleton instance of compiler.
* @return MetaObjectCompiler singleton instance
*/
public static MetaObjectCompiler getInstance() {
return INSTANCE;
}
/**
* Constructor.
* @param newEnvironment boolean establish an new environment.
* @param env Environment environment.
*/
private MetaObjectCompiler(final boolean newEnvironment,
final Environment env) {
super("moc", "-version", new String[] {".h", ".cpp"}
, new String[0], ".moc", false, null, newEnvironment, env);
}
/**
* Add arguments for debug, etc.
* @param args Vector command argument list
* @param debug boolean build for debug if true
* @param multithreaded boolean build for multithreading if true
* @param exceptions boolean enable exceptions if true
* @param linkType LinkType output and runtime type
* @param rtti Boolean enable run-time type identification if true
* @param optimization OptimizationEnum optimization
*/
protected void addImpliedArgs(final Vector args,
final boolean debug,
final boolean multithreaded,
final boolean exceptions,
final LinkType linkType,
final Boolean rtti,
final OptimizationEnum optimization) {
}
/**
* Add arguments for specified warning level.
* @param args Vector command line arguments
* @param level int warning level value
*/
protected void addWarningSwitch(final Vector args, final int level) {
}
/**
* Change enviroment (deprecated).
* @param newEnvironment boolean use new environment.
* @param env Environment environment
* @return Processor modified processor
*/
public Processor changeEnvironment(final boolean newEnvironment,
final Environment env) {
return this;
}
/**
* Gets a parser to scan source file for dependencies.
* @param source source file
* @return parser
*/
protected Parser createParser(final File source) {
return new CParser();
}
/**
* Gets number of command line arguments per input file.
* @return int number of command line arguments per input file.
*/
protected int getArgumentCountPerInputFile() {
return 3;
}
/**
* Returns the bid of the processor for the file.
*
* @param inputFile
* filename of input file
* @return bid for the file, 0 indicates no interest, 1 indicates that the
* processor recognizes the file but doesn't process it (header
* files, for example), 100 indicates strong interest
*/
public int bid(final String inputFile) {
//
// get base bid
int baseBid = super.bid(inputFile);
//
// if the base bid was non-zero (.h or .cpp extension)
//
if (baseBid > 0) {
//
// scan the file for Q_OBJECT
// skip file if not present
//
try {
Reader reader = new BufferedReader(new FileReader(inputFile));
boolean hasQObject = MetaObjectParser.hasQObject(reader);
reader.close();
if (hasQObject) {
return baseBid;
}
} catch (IOException ex) {
return 0;
}
}
return 0;
}
/**
* Gets output file names.
* @param inputFile String input file name
* @param versionInfo version info, not used by this compiler.
* @return String[] output file names
*/
public String[] getOutputFileNames(final String inputFile,
final VersionInfo versionInfo) {
if (inputFile.endsWith(".cpp")) {
return super.getOutputFileNames(inputFile, versionInfo);
}
//
// if a recognized input file
//
String baseName = getBaseOutputName(inputFile);
return new String[] {
"moc_" + baseName + ".cpp"};
}
/**
* Gets input file arguments.
* @param outputDir File output directory
* @param filename String input file name.
* @param index int argument index,
* 0 to getNumberOfArgumentsPerInputFile() -1
* @return String input file argument
*/
protected String getInputFileArgument(final File outputDir,
final String filename,
final int index) {
switch (index) {
case 0:
return "-o";
case 1:
String outputFileName = getOutputFileNames(filename, null)[0];
return new File(outputDir, outputFileName)
.toString();
case 2:
return filename;
default:
return null;
}
}
/**
* Gets maximum length of command line.
* @return int maximum length of command line
*/
public int getMaximumCommandLength() {
return 1024;
}
/**
* Gets maximum number of input files processed per command.
* @return int maximum number of input files processed per command.
*/
protected int getMaximumInputFilesPerCommand() {
return 1;
}
/**
* Gets include directory switch.
* @param includeDir String include directory
* @return String command switch to add specified directory to search path
*/
protected String getIncludeDirSwitch(final String includeDir) {
return "";
}
/**
* Gets switch to define preprocessor macro.
* @param buffer StringBuffer command line argument
* @param define String macro name
* @param value String macro value, may be null.
*/
protected void getDefineSwitch(final StringBuffer buffer,
final String define,
final String value) {
}
/**
* Gets switch to undefine preprocessor macro.
* @param buffer StringBuffer command line argument
* @param define String macro name
*/
protected void getUndefineSwitch(final StringBuffer buffer,
final String define) {
}
/**
* Gets standard include paths.
* @return File[] standard include paths
*/
protected File[] getEnvironmentIncludePath() {
return new File[0];
}
/**
* Gets linker associated with this type.
* @param type LinkType linker, returns ld.
* @return Linker
*/
public Linker getLinker(final LinkType type) {
return LdLinker.getInstance();
}
/**
* Get total command line length due to the input file.
* @param outputDir File output directory
* @param inputFile String input file
* @return int characters added to command line for the input file.
*/
protected int getTotalArgumentLengthForInputFile(final File outputDir,
final String inputFile) {
String arg1 = getInputFileArgument(outputDir, inputFile, 0);
String arg2 = getInputFileArgument(outputDir, inputFile, 1);
return arg1.length() + arg2.length() + 3;
}
}