manifold.preprocessor.JavaPreprocessor Maven / Gradle / Ivy
/*
* Copyright (c) 2019 - Manifold Systems LLC
*
* 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 manifold.preprocessor;
import java.net.URI;
import java.util.function.Consumer;
import manifold.api.fs.IFile;
import manifold.api.type.IPreprocessor;
import manifold.internal.javac.JavacPlugin;
import manifold.preprocessor.definitions.Definitions;
import manifold.preprocessor.statement.FileStatement;
public class JavaPreprocessor implements IPreprocessor
{
@Override
public Order getPreferredOrder()
{
return Order.First;
}
@Override
public CharSequence process( URI sourceFile, CharSequence source )
{
return process( sourceFile, source, null );
}
public CharSequence process( URI sourceFile, CharSequence source, Consumer consumer )
{
FileStatement fileStmt = new PreprocessorParser( source, consumer ).parseFile();
if( fileStmt.hasPreprocessorDirectives() )
{
StringBuilder result = new StringBuilder();
try
{
IFile file = JavacPlugin.instance().getHost().getFileSystem().getIFile( sourceFile.toURL() );
fileStmt.execute( result, source, true, new Definitions( file ) );
return result;
}
catch( Exception e )
{
throw new IllegalStateException( e );
}
}
return source;
}
}