Method decode

src/main/java/fieldnashorn/sourcemap/Base64VLQ.java:103–117

Decodes the next VLQValue from the provided CharIterator.

(CharIterator in)

     * Decodes the next VLQValue from the provided CharIterator.
     */
    public static int decode(CharIterator in) {
        int result = 0;
        boolean continuation;
        int shift = 0;
        do {
            char c = in.next();
            int digit = Base64.fromBase64(c);
            continuation = (digit & VLQ_CONTINUATION_BIT) != 0;
            digit &= VLQ_BASE_MASK;
            result = result + (digit << shift);
            shift = shift + VLQ_BASE_SHIFT;
        } while (continuation);

        return fromVLQSigned(result);
    }

    /**
     * A simple interface for advancing through a sequence of characters, that