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node_modules/restructure/src/Number.js

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+import {DecodeStream} from './DecodeStream.js';
+import {Base} from './Base.js';
+
+class NumberT extends Base {
+  constructor(type, endian = 'BE') {
+    super();
+    this.type = type;
+    this.endian = endian;
+    this.fn = this.type;
+    if (this.type[this.type.length - 1] !== '8') {
+      this.fn += this.endian;
+    }
+  }
+
+  size() {
+    return DecodeStream.TYPES[this.type];
+  }
+
+  decode(stream) {
+    return stream[`read${this.fn}`]();
+  }
+
+  encode(stream, val) {
+    return stream[`write${this.fn}`](val);
+  }
+}
+
+export {NumberT as Number};
+
+export const uint8 = new NumberT('UInt8');
+export const uint16be = new NumberT('UInt16', 'BE');
+export const uint16 = uint16be;
+export const uint16le = new NumberT('UInt16', 'LE');
+export const uint24be = new NumberT('UInt24', 'BE');
+export const uint24 = uint24be;
+export const uint24le = new NumberT('UInt24', 'LE');
+export const uint32be = new NumberT('UInt32', 'BE');
+export const uint32 = uint32be;
+export const uint32le = new NumberT('UInt32', 'LE');
+export const int8 = new NumberT('Int8');
+export const int16be = new NumberT('Int16', 'BE');
+export const int16 = int16be;
+export const int16le = new NumberT('Int16', 'LE');
+export const int24be = new NumberT('Int24', 'BE');
+export const int24 = int24be;
+export const int24le = new NumberT('Int24', 'LE');
+export const int32be = new NumberT('Int32', 'BE');
+export const int32 = int32be;
+export const int32le = new NumberT('Int32', 'LE');
+export const floatbe = new NumberT('Float', 'BE');
+export const float = floatbe;
+export const floatle = new NumberT('Float', 'LE');
+export const doublebe = new NumberT('Double', 'BE');
+export const double = doublebe;
+export const doublele = new NumberT('Double', 'LE');
+
+export class Fixed extends NumberT {
+  constructor(size, endian, fracBits = size >> 1) {
+    super(`Int${size}`, endian);
+    this._point = 1 << fracBits;
+  }
+
+  decode(stream) {
+    return super.decode(stream) / this._point;
+  }
+
+  encode(stream, val) {
+    return super.encode(stream, (val * this._point) | 0);
+  }
+}
+
+export const fixed16be = new Fixed(16, 'BE');
+export const fixed16 = fixed16be;
+export const fixed16le = new Fixed(16, 'LE');
+export const fixed32be = new Fixed(32, 'BE');
+export const fixed32 = fixed32be;
+export const fixed32le = new Fixed(32, 'LE');