@Nullable
private JsNameRef getTargetLabel(@NotNull Node statementWithLabel) {
int type = statementWithLabel.getType();
if (type != TokenStream.BREAK && type != TokenStream.CONTINUE) {
String tokenTypeName = TokenStream.tokenToName(statementWithLabel.getType());
throw new AssertionError("Unexpected node type with label: " + tokenTypeName);
}
Node label = statementWithLabel.getFirstChild();
if (label == null) return null;
String identifier = label.getString();
assert identifier != null : "If label exists identifier should not be null";
JsName labelName = scopeContext.labelFor(identifier);
assert labelName != null : "Unknown label name: " + identifier;
return labelName.makeRef();
}
