Method expectCommaSeparator

src/parser.ts:449–463

()

    // Quietly expect a comma when in tolerant mode, otherwise delegates to expect().

    expectCommaSeparator() {
        if (this.config.tolerant) {
            const token = this.lookahead;
            if (token.type === Token.Punctuator && token.value === ',') {
                this.nextToken();
            } else if (token.type === Token.Punctuator && token.value === ';') {
                this.nextToken();
                this.tolerateUnexpectedToken(token);
            } else {
                this.tolerateUnexpectedToken(token, Messages.UnexpectedToken);
            }
        } else {
            this.expect(',');
        }
    }

    // Expect the next token to match the specified keyword.
    // If not, an exception will be thrown.