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Convert src/core/run_length_stream.js to use standard classes

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This commit is contained in:
Jonas Jenwald 2021-04-27 13:07:39 +02:00
parent 66b898eb58
commit 704514c7cd
1 changed files with 7 additions and 12 deletions
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19
src/core/run_length_stream.js
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@ -15,18 +15,15 @@
import { DecodeStream } from "./stream.js";
const RunLengthStream = (function RunLengthStreamClosure() {
// eslint-disable-next-line no-shadow
function RunLengthStream(str, maybeLength) {
class RunLengthStream extends DecodeStream {
constructor(str, maybeLength) {
super(maybeLength);
this.str = str;
this.dict = str.dict;
DecodeStream.call(this, maybeLength);
}
RunLengthStream.prototype = Object.create(DecodeStream.prototype);
RunLengthStream.prototype.readBlock = function RunLengthStream_readBlock() {
readBlock() {
// The repeatHeader has following format. The first byte defines type of run
// and amount of bytes to repeat/copy: n = 0 through 127 - copy next n bytes
// (in addition to the second byte from the header), n = 129 through 255 -
@ -58,9 +55,7 @@ const RunLengthStream = (function RunLengthStreamClosure() {
}
}
this.bufferLength = bufferLength;
};
return RunLengthStream;
})();
}
}
export { RunLengthStream };