@Override
public void process(Node externs, Node root) {
if (languageOutIsAtLeast(ES6) || !compiler.getOptions().rewritePolyfills) {
return; // no rewriting in this case.
}
this.globals = new GlobalNamespace(compiler, externs, root);
hotSwapScript(root, null);
}
/**
* Some nodes must be visited pre-order in order to rewrite the references to {@code this}
* correctly. Everything else is translated post-order in {@link #visit}.
*/
@Override
public boolean shouldTraverse(NodeTraversal t, Node n, Node parent) {
switch (n.getType()) {
case Token.REST:
visitRestParam(n, parent);
break;
case Token.GETTER_DEF:
case Token.SETTER_DEF:
if (compiler.getOptions().getLanguageOut() == LanguageMode.ECMASCRIPT3) {
cannotConvert(n, "ES5 getters/setters (consider using --language_out=ES5)");
return false;
}
break;
}
return true;
}
private boolean languageOutIsAtLeast(LanguageMode mode) {
return compiler.getOptions().getLanguageOut().compareTo(mode) >= 0;
}
