/**
* Main loop entry.
*
* <p>First, it delegates to the super visitClass so we can collect the relevant annotations in an
* AST tree walk.
*
* <p>Second, it calls the visit method on the transformation for each relevant annotation found.
*
* @param classNode the class to visit
*/
public void visitClass(ClassNode classNode) {
// only descend if we have annotations to look for
Map<Class<? extends ASTTransformation>, Set<ASTNode>> baseTransforms =
classNode.getTransforms(phase);
if (!baseTransforms.isEmpty()) {
final Map<Class<? extends ASTTransformation>, ASTTransformation> transformInstances =
new HashMap<Class<? extends ASTTransformation>, ASTTransformation>();
for (Class<? extends ASTTransformation> transformClass : baseTransforms.keySet()) {
try {
transformInstances.put(transformClass, transformClass.newInstance());
} catch (InstantiationException e) {
source
.getErrorCollector()
.addError(
new SimpleMessage(
"Could not instantiate Transformation Processor "
+ transformClass, // + " declared by " +
// annotation.getClassNode().getName(),
source));
} catch (IllegalAccessException e) {
source
.getErrorCollector()
.addError(
new SimpleMessage(
"Could not instantiate Transformation Processor "
+ transformClass, // + " declared by " +
// annotation.getClassNode().getName(),
source));
}
}
// invert the map, is now one to many
transforms = new HashMap<ASTNode, List<ASTTransformation>>();
for (Map.Entry<Class<? extends ASTTransformation>, Set<ASTNode>> entry :
baseTransforms.entrySet()) {
for (ASTNode node : entry.getValue()) {
List<ASTTransformation> list = transforms.get(node);
if (list == null) {
list = new ArrayList<ASTTransformation>();
transforms.put(node, list);
}
list.add(transformInstances.get(entry.getKey()));
}
}
targetNodes = new LinkedList<ASTNode[]>();
// first pass, collect nodes
super.visitClass(classNode);
// second pass, call visit on all of the collected nodes
for (ASTNode[] node : targetNodes) {
for (ASTTransformation snt : transforms.get(node[0])) {
if (snt instanceof CompilationUnitAware) {
((CompilationUnitAware) snt).setCompilationUnit(context.getCompilationUnit());
}
snt.visit(node, source);
}
}
}
}
public void call(SourceUnit source, GeneratorContext context, ClassNode classNode)
throws CompilationFailedException {
optimizer.visitClass(
classNode, source); // GROOVY-4272: repositioned it here from staticImport
if (!classNode.isSynthetic()) {
GenericsVisitor genericsVisitor = new GenericsVisitor(source);
genericsVisitor.visitClass(classNode);
}
//
// Run the Verifier on the outer class
//
try {
verifier.visitClass(classNode);
} catch (GroovyRuntimeException rpe) {
ASTNode node = rpe.getNode();
getErrorCollector()
.addError(
new SyntaxException(
rpe.getMessage(),
node.getLineNumber(),
node.getColumnNumber(),
node.getLastLineNumber(),
node.getLastColumnNumber()),
source);
}
LabelVerifier lv = new LabelVerifier(source);
lv.visitClass(classNode);
ClassCompletionVerifier completionVerifier = new ClassCompletionVerifier(source);
completionVerifier.visitClass(classNode);
ExtendedVerifier xverifier = new ExtendedVerifier(source);
xverifier.visitClass(classNode);
// because the class may be generated even if a error was found
// and that class may have an invalid format we fail here if needed
getErrorCollector().failIfErrors();
//
// Prep the generator machinery
//
ClassVisitor visitor = createClassVisitor();
String sourceName =
(source == null ? classNode.getModule().getDescription() : source.getName());
// only show the file name and its extension like javac does in its stacktraces rather
// than the full path
// also takes care of both \ and / depending on the host compiling environment
if (sourceName != null)
sourceName =
sourceName.substring(
Math.max(sourceName.lastIndexOf('\\'), sourceName.lastIndexOf('/')) + 1);
AsmClassGenerator generator = new AsmClassGenerator(source, context, visitor, sourceName);
//
// Run the generation and create the class (if required)
//
// GRECLIPSE: if there are errors, don't generate code.
// code gen can fail unexpectedly if there was an earlier error.
if (!source.getErrorCollector().hasErrors()) {
// end
generator.visitClass(classNode);
byte[] bytes = ((ClassWriter) visitor).toByteArray();
/// GRECLIPSE: start: added classNode, sourceUnit
/*old{
generatedClasses.add(new GroovyClass(classNode.getName(), bytes));
}*/
// newcode
generatedClasses.add(new GroovyClass(classNode.getName(), bytes, classNode, source));
// end
//
// Handle any callback that's been set
//
if (CompilationUnit.this.classgenCallback != null) {
classgenCallback.call(visitor, classNode);
}
//
// Recurse for inner classes
//
LinkedList innerClasses = generator.getInnerClasses();
while (!innerClasses.isEmpty()) {
classgen.call(source, context, (ClassNode) innerClasses.removeFirst());
}
// GRECLIPSE: if there are errors, don't generate code
}
// end
}