package org.stjs.generator.check.expression;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import org.stjs.generator.GenerationContext;
import org.stjs.generator.GeneratorConstants;
import org.stjs.generator.check.CheckContributor;
import org.stjs.generator.check.CheckVisitor;
import org.stjs.generator.javac.TreeUtils;
import org.stjs.javascript.annotation.ServerSide;
import com.sun.source.tree.IdentifierTree;
public class IdentifierAccessServerSideCheck implements CheckContributor<IdentifierTree> {
private boolean isRegularField(Element fieldElement, IdentifierTree tree) {
if (fieldElement == null || fieldElement.getKind() != ElementKind.FIELD) {
// only meant for fields
return false;
}
if (GeneratorConstants.THIS.equals(tree.getName().toString()) || GeneratorConstants.SUPER.equals(tree.getName().toString())) {
return false;
}
return true;
}
@Override
public Void visit(CheckVisitor visitor, IdentifierTree tree, GenerationContext<Void> context) {
Element fieldElement = TreeUtils.elementFromUse(tree);
if (!isRegularField(fieldElement, tree)) {
return null;
}
if (fieldElement.getAnnotation(ServerSide.class) != null) {
context.addError(tree, "You cannot access fields annotated with @ServerSide in a client code");
}
return null;
}
}