Method propertyAccess

rhino/src/main/java/org/mozilla/javascript/Parser.java:3264–3375

Handles any construct following a "." or ".." operator. @param pn the left-hand side (target) of the operator. Never null. @param isOptionalChain whether we are inside an optional chain, i.e. whether a preceding property access was done via the ?. operator @return a PropertyGet, XmlMemb

(int tt, AstNode pn, boolean isOptionalChain)

     * @return a PropertyGet, XmlMemberGet, or ErrorNode
     */
    private AstNode propertyAccess(int tt, AstNode pn, boolean isOptionalChain) throws IOException {
        if (pn == null) codeBug();
        if (pn.getType() == Token.SUPER && isOptionalChain) {
            reportError("msg.optional.super");
            return makeErrorNode();
        }

        int memberTypeFlags = 0,
                lineno = lineNumber(),
                dotPos = ts.tokenBeg,
                column = columnNumber();
        consumeToken();

        if (tt == Token.DOTDOT) {
            mustHaveXML();
            memberTypeFlags = Node.DESCENDANTS_FLAG;
        }

        AstNode ref = null; // right side of . or .. operator
        int token = nextToken();
        switch (token) {
            case Token.THROW:
                // needed for generator.throw();
                saveNameTokenData(ts.tokenBeg, "throw", lineNumber(), columnNumber());
                ref = propertyName(-1, memberTypeFlags);
                break;

            case Token.NAME:
                // handles: name, ns::name, ns::*, ns::[expr]
                ref = propertyName(-1, memberTypeFlags);
                break;

            case Token.MUL:
                if (compilerEnv.isXmlAvailable()) {
                    // handles: *, *::name, *::*, *::[expr]
                    saveNameTokenData(ts.tokenBeg, "*", lineNumber(), columnNumber());
                    ref = propertyName(-1, memberTypeFlags);
                    break;
                } else {
                    reportError("msg.no.name.after.dot");
                    return makeErrorNode();
                }

            case Token.XMLATTR:
                if (compilerEnv.isXmlAvailable()) {
                    // handles: '@attr', '@ns::attr', '@ns::*', '@ns::*',
                    //          '@::attr', '@::*', '@*', '@*::attr', '@*::*'
                    ref = attributeAccess();
                    break;
                } else {
                    reportError("msg.no.name.after.dot");
                    return makeErrorNode();
                }

            case Token.RESERVED:
                {
                    String name = ts.getString();
                    saveNameTokenData(ts.tokenBeg, name, lineNumber(), columnNumber());