feat: more prog

src/core/streams/byte.ts

@@ -0,0 +1,67 @@
+export class ByteStream {
+  public index = 0;
+  constructor(public stream: Buffer) {}
+
+  skip(size: number) {
+    this.index += size;
+  }
+  read(size: number) {
+    return this.stream.subarray(this.index, this.index + size);
+  }
+  consume(size: number) {
+    const subarray = this.read(size);
+    this.skip(size);
+
+    return subarray;
+  }
+
+  readRemaining() {
+    return this.read(Number.POSITIVE_INFINITY);
+  }
+  readRemainingLength() {
+    return this.stream.length - this.index;
+  }
+  consumeRemaining() {
+    return this.consume(Number.POSITIVE_INFINITY);
+  }
+
+  byte(size: number) {
+    return this.consume(size);
+  }
+
+  ascii(size: number) {
+    return this.consume(size).toString('ascii');
+  }
+
+  int8() {
+    return this.consume(1).readInt8();
+  }
+  int16() {
+    return this.consume(2).readInt16LE();
+  }
+  int32() {
+    return this.consume(4).readInt32LE();
+  }
+  int64() {
+    return this.consume(8).readBigInt64LE();
+  }
+  uint8() {
+    return this.consume(1).readUInt8();
+  }
+  uint16() {
+    return this.consume(2).readUInt16LE();
+  }
+  uint32() {
+    return this.consume(4).readUInt32LE();
+  }
+  uint64() {
+    return this.consume(8).readBigUInt64LE();
+  }
+  float() {
+    return this.consume(4).readFloatLE();
+  }
+
+  boolean() {
+    return this.consume(1).readUInt8() === 1;
+  }
+}