/*
* Copyright 2003-2012 the original author or authors.
*
* 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 org.codehaus.groovy.transform.sc;
import org.codehaus.groovy.ast.*;
import org.codehaus.groovy.ast.expr.Expression;
import org.codehaus.groovy.classgen.asm.WriterControllerFactory;
import org.codehaus.groovy.classgen.asm.sc.StaticTypesWriterControllerFactoryImpl;
import org.codehaus.groovy.control.CompilePhase;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.syntax.SyntaxException;
import org.codehaus.groovy.transform.GroovyASTTransformation;
import org.codehaus.groovy.transform.StaticTypesTransformation;
import org.codehaus.groovy.transform.sc.transformers.StaticCompilationTransformer;
import org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor;
import java.util.Collections;
import java.util.Map;
import static org.codehaus.groovy.transform.sc.StaticCompilationMetadataKeys.STATIC_COMPILE_NODE;
/**
* Handles the implementation of the {@link groovy.transform.CompileStatic} transformation.
*
* @author Cedric Champeau
*/
@GroovyASTTransformation(phase = CompilePhase.INSTRUCTION_SELECTION)
public class StaticCompileTransformation extends StaticTypesTransformation {
private final StaticTypesWriterControllerFactoryImpl factory = new StaticTypesWriterControllerFactoryImpl();
@Override
public void visit(final ASTNode[] nodes, final SourceUnit source) {
StaticCompilationTransformer transformer = new StaticCompilationTransformer(source);
AnnotationNode annotationInformation = (AnnotationNode) nodes[0];
AnnotatedNode node = (AnnotatedNode) nodes[1];
StaticTypeCheckingVisitor visitor = null;
Map<String,Expression> members = annotationInformation.getMembers();
Expression extensions = members.get("extensions");
if (node instanceof ClassNode) {
ClassNode classNode = (ClassNode) node;
visitor = newVisitor(source, classNode);
visitor.setCompilationUnit(compilationUnit);
addTypeCheckingExtensions(visitor, extensions);
classNode.putNodeMetaData(WriterControllerFactory.class, factory);
node.putNodeMetaData(STATIC_COMPILE_NODE, !visitor.isSkipMode(node));
visitor.initialize();
visitor.visitClass(classNode);
} else if (node instanceof MethodNode) {
MethodNode methodNode = (MethodNode) node;
ClassNode declaringClass = methodNode.getDeclaringClass();
visitor = newVisitor(source, declaringClass);
visitor.setCompilationUnit(compilationUnit);
addTypeCheckingExtensions(visitor, extensions);
methodNode.putNodeMetaData(STATIC_COMPILE_NODE, !visitor.isSkipMode(node));
if (declaringClass.getNodeMetaData(WriterControllerFactory.class) == null) {
declaringClass.putNodeMetaData(WriterControllerFactory.class, factory);
}
visitor.setMethodsToBeVisited(Collections.singleton(methodNode));
visitor.initialize();
visitor.visitMethod(methodNode);
} else {
source.addError(new SyntaxException(STATIC_ERROR_PREFIX + "Unimplemented node type",
node.getLineNumber(), node.getColumnNumber(), node.getLastLineNumber(), node.getLastColumnNumber()));
}
if (visitor != null) {
visitor.performSecondPass();
}
if (node instanceof ClassNode) {
transformer.visitClass((ClassNode) node);
} else if (node instanceof MethodNode) {
transformer.visitMethod((MethodNode) node);
}
}
@Override
protected StaticTypeCheckingVisitor newVisitor(final SourceUnit unit, final ClassNode node) {
return new StaticCompilationVisitor(unit, node);
}
}