biner/lib/types/numbers.js

Declarative binary data encoder / decoder.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.numbers = {
    doublebe: createFastStub(8, 'writeDoubleBE', 'readDoubleBE'),
    doublele: createFastStub(8, 'writeDoubleLE', 'readDoubleLE'),
    floatbe: createFastStub(4, 'writeFloatBE', 'readFloatBE'),
    floatle: createFastStub(4, 'writeFloatLE', 'readFloatLE'),
    int8: createFastStub(1, 'writeInt8', 'readInt8'),
    uint8: createFastStub(1, 'writeUInt8', 'readUInt8'),
    int16be: createFastStub(2, 'writeInt16BE', 'readInt16BE'),
    uint16be: createFastStub(2, 'writeUInt16BE', 'readUInt16BE'),
    int16le: createFastStub(2, 'writeInt16LE', 'readInt16LE'),
    uint16le: createFastStub(2, 'writeUInt16LE', 'readUInt16LE'),
    int32be: createFastStub(4, 'writeInt32BE', 'readInt32BE'),
    uint32be: createFastStub(4, 'writeUInt32BE', 'readUInt32BE'),
    int32le: createFastStub(4, 'writeInt32LE', 'readInt32LE'),
    uint32le: createFastStub(4, 'writeUInt32LE', 'readUInt32LE'),
    int24be: createFastStubGeneric(3, 'writeIntBE', 'readIntBE'),
    uint24be: createFastStubGeneric(3, 'writeUIntBE', 'readUIntBE'),
    int24le: createFastStubGeneric(3, 'writeIntLE', 'readIntLE'),
    uint24le: createFastStubGeneric(3, 'writeUIntLE', 'readUIntLE'),
    int40be: createFastStubGeneric(5, 'writeIntBE', 'readIntBE'),
    uint40be: createFastStubGeneric(5, 'writeUIntBE', 'readUIntBE'),
    int40le: createFastStubGeneric(5, 'writeIntLE', 'readIntLE'),
    uint40le: createFastStubGeneric(5, 'writeUIntLE', 'readUIntLE'),
    int48be: createFastStubGeneric(6, 'writeIntBE', 'readIntBE'),
    uint48be: createFastStubGeneric(6, 'writeUIntBE', 'readUIntBE'),
    int48le: createFastStubGeneric(6, 'writeIntLE', 'readIntLE'),
    uint48le: createFastStubGeneric(6, 'writeUIntLE', 'readUIntLE'),
};
function createFastStub(size, write, read) {
    function encode(value, wstream) {
        wstream[write](value, 0);
        return size;
    }
    function decode(rstream) {
        const ret = rstream[read](0);
        return [ret, size];
    }
    return {
        encodingLength: () => size,
        encode,
        decode,
    };
}
function createFastStubGeneric(size, write, read) {
    function encode(value, wstream) {
        wstream[write](value, size);
        return size;
    }
    function decode(rstream) {
        const ret = rstream[read](size);
        return [ret, size];
    }
    return {
        encodingLength: () => size,
        encode,
        decode,
    };
}
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