/**
* Recursively traverses a label expression to construct the setter name for the label. We rely
* on the results of the ExpressionEvaluator in assuming that the expression type is either DOT
* or ID, and that an ID always resolved to a Field in the expression scope.
*
* @param buffer string buffer used for appending the partial result
* @param expr subexpression of current label expression
*/
private void appendLabelSetter(StringBuilder buffer, Expression expr) {
if (expr.getType() == DataScriptParserTokenTypes.DOT) {
Expression op1 = expr.op1();
String symbol = op1.getText();
Field f = (Field) op1.getScope().getTypeOrSymbol(symbol);
String getter = AccessorNameEmitter.getGetterName(f);
buffer.append(getter);
buffer.append("().");
appendLabelSetter(buffer, expr.op2());
} else {
Field f = (Field) expr.getScope().getTypeOrSymbol(expr.getText());
buffer.append(AccessorNameEmitter.getSetterName(f));
}
}
