@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(); }