Method consume

runtime/JavaScript/src/antlr4/Parser.js:342–367

* Consume and return the plain //getCurrentToken current symbol. * * E.g., given the following input with A being the current * lookahead symbol, this function moves the cursor to B and returns * A. * * * A B * ^

()

     * listeners.
     */
    consume() {
        const o = this.getCurrentToken();
        if (o.type !== Token.EOF) {
            this.getInputStream().consume();
        }
        const hasListener = this._parseListeners !== null && this._parseListeners.length > 0;
        if (this.buildParseTrees || hasListener) {
            let node;
            if (this._errHandler.inErrorRecoveryMode(this)) {
                node = this._ctx.addErrorNode(o);
            } else {
                node = this._ctx.addTokenNode(o);
            }
            node.invokingState = this.state;
            if (hasListener) {
                this._parseListeners.forEach(function (listener) {
                    if (node instanceof ErrorNode || (node.isErrorNode !== undefined && node.isErrorNode())) {
                        listener.visitErrorNode(node);
                    } else if (node instanceof TerminalNode) {
                        listener.visitTerminal(node);
                    }
                });
            }
        }
        return o;
    }

    addContextToParseTree() {
        // add current context to parent if we have a parent