import { encoderError } from "../../encoding/encodings";
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import { finished } from "../../encoding/finished";
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import { indexPointerFor } from "../../encoding/indexes";
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import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
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/**
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* @constructor
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* @implements {Encoder}
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* @param {!Array.<?number>} index The encoding index.
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* @param {{fatal: boolean}} options
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*/
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var SingleByteEncoder = /** @class */ (function () {
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function SingleByteEncoder(index, options) {
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this.index = index;
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this.fatal = options.fatal;
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}
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/**
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* @param {Stream} stream Input stream.
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* @param {number} code_point Next code point read from the stream.
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* @return {(number|!Array.<number>)} Byte(s) to emit.
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*/
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SingleByteEncoder.prototype.handler = function (stream, code_point) {
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// 1. If code point is end-of-stream, return finished.
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if (code_point === end_of_stream)
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return finished;
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// 2. If code point is an ASCII code point, return a byte whose
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// value is code point.
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if (isASCIICodePoint(code_point))
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return code_point;
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// 3. Let pointer be the index pointer for code point in index
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// single-byte.
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var pointer = indexPointerFor(code_point, this.index);
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// 4. If pointer is null, return error with code point.
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if (pointer === null)
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encoderError(code_point);
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// 5. Return a byte whose value is pointer + 0x80.
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return pointer + 0x80;
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};
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return SingleByteEncoder;
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}());
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export { SingleByteEncoder };
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//# sourceMappingURL=SingleByteEncoder.js.map
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