@Override
public void filter(Reader reader, Writer writer) {
try {
CompilerEnvirons config = new CompilerEnvirons();
// 'float' is otherwise considered a reserved keyword (usage: element.style.float = 'left').
config.setReservedKeywordAsIdentifier(true);
// Force the parser to build the parent scope chain.
config.setIdeMode(true);
Parser parser = new Parser(config);
AstRoot root = parser.parse(reader, null, 0);
// Filter the AST.
for (NodeVisitor filter : filters) {
root.visit(filter);
}
// Back to source.
writer.write(root.toSource());
} catch (IOException e) {
LOGGER.error("Failed to rewrite JavaScript code.", e);
}
}
