"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var encodings_1 = require("../../encoding/encodings");
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var finished_1 = require("../../encoding/finished");
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var terminology_1 = require("../../encoding/terminology");
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/**
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* @constructor
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* @implements {Decoder}
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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 SingleByteDecoder = /** @class */ (function () {
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function SingleByteDecoder(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 The stream of bytes being decoded.
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* @param {number} bite The next byte read from the stream.
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* @return {?(number|!Array.<number>)} The next code point(s)
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* decoded, or null if not enough data exists in the input
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* stream to decode a complete code point.
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*/
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SingleByteDecoder.prototype.handler = function (stream, bite) {
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// 1. If byte is end-of-stream, return finished.
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if (bite === terminology_1.end_of_stream)
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return finished_1.finished;
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// 2. If byte is an ASCII byte, return a code point whose value
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// is byte.
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if (terminology_1.isASCIIByte(bite))
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return bite;
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// 3. Let code point be the index code point for byte − 0x80 in
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// index single-byte.
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var code_point = this.index[bite - 0x80];
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// 4. If code point is null, return error.
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if (!code_point)
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return encodings_1.decoderError(this.fatal);
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// 5. Return a code point whose value is code point.
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return code_point;
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};
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return SingleByteDecoder;
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}());
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exports.SingleByteDecoder = SingleByteDecoder;
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//# sourceMappingURL=SingleByteDecoder.js.map
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