private void changeBaseScriptTypeFromPackageOrImport(
final SourceUnit source, final AnnotatedNode parent, final AnnotationNode node) {
Expression value = node.getMember("value");
if (!(value instanceof ClassExpression)) {
addError("Annotation " + MY_TYPE_NAME + " member 'value' should be a class literal.", value);
return;
}
List<ClassNode> classes = source.getAST().getClasses();
for (ClassNode classNode : classes) {
if (classNode.isScriptBody()) {
changeBaseScriptType(parent, classNode, value.getType());
}
}
}
private void changeBaseScriptType(
final AnnotatedNode parent, final ClassNode cNode, final ClassNode baseScriptType) {
if (!cNode.isScriptBody()) {
addError("Annotation " + MY_TYPE_NAME + " can only be used within a Script.", parent);
return;
}
if (!baseScriptType.isScript()) {
addError(
"Declared type " + baseScriptType + " does not extend groovy.lang.Script class!", parent);
return;
}
cNode.setSuperClass(baseScriptType);
// Method in base script that will contain the script body code.
MethodNode runScriptMethod = ClassHelper.findSAM(baseScriptType);
// If they want to use a name other than than "run", then make the change.
if (isCustomScriptBodyMethod(runScriptMethod)) {
MethodNode defaultMethod = cNode.getDeclaredMethod("run", Parameter.EMPTY_ARRAY);
// GROOVY-6706: Sometimes an NPE is thrown here.
// The reason is that our transform is getting called more than once sometimes.
if (defaultMethod != null) {
cNode.removeMethod(defaultMethod);
MethodNode methodNode =
new MethodNode(
runScriptMethod.getName(),
runScriptMethod.getModifiers() & ~ACC_ABSTRACT,
runScriptMethod.getReturnType(),
runScriptMethod.getParameters(),
runScriptMethod.getExceptions(),
defaultMethod.getCode());
// The AST node metadata has the flag that indicates that this method is a script body.
// It may also be carrying data for other AST transforms.
methodNode.copyNodeMetaData(defaultMethod);
cNode.addMethod(methodNode);
}
}
// If the new script base class does not have a contextual constructor (g.l.Binding), then we
// won't either.
// We have to do things this way (and rely on just default constructors) because the logic that
// generates
// the constructors for our script class have already run.
if (cNode.getSuperClass().getDeclaredConstructor(CONTEXT_CTOR_PARAMETERS) == null) {
ConstructorNode orphanedConstructor = cNode.getDeclaredConstructor(CONTEXT_CTOR_PARAMETERS);
cNode.removeConstructor(orphanedConstructor);
}
}