bytestreamjs - npm Package Compare versions

Comparing version 2.0.0 to 2.0.1

build/cjs/seq_stream.js

@@ -5,2 +5,3 @@ "use strict";
 const byte_stream_1 = require("./byte_stream");
+const pow2_24 = 16777216;
 class SeqStream {
@@ -392,51 +393,36 @@ constructor(parameters = {}) {
             return 0;
-        const value = new Uint16Array(1);
-        const view = new Uint8Array(value.buffer);
-        view[0] = block[1];
-        view[1] = block[0];
-        return value[0];
+        return (block[0] << 8) | block[1];
     }
     getInt16(changeLength = true) {
-        const block = this.getBlock(2, changeLength);
-        if (block.length < 2)
-            return 0;
-        const value = new Int16Array(1);
-        const view = new Uint8Array(value.buffer);
-        view[0] = block[1];
-        view[1] = block[0];
-        return value[0];
+        const num = this.getUint16(changeLength);
+        const negative = 0x8000;
+        if (num & negative) {
+            return -(negative - (num ^ negative));
+        }
+        return num;
     }
     getUint24(changeLength = true) {
-        const block = this.getBlock(3, changeLength);
+        const block = this.getBlock(4, changeLength);
         if (block.length < 3)
             return 0;
-        const value = new Uint32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 1; i--) {
-            view[3 - i] = block[i - 1];
-        }
-        return value[0];
+        return (block[0] << 16) |
+            (block[1] << 8) |
+            block[2];
     }
     getUint32(changeLength = true) {
         const block = this.getBlock(4, changeLength);
-        if (block.length < 4) {
+        if (block.length < 4)
             return 0;
-        }
-        const value = new Uint32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 0; i--) {
-            view[3 - i] = block[i];
-        }
-        return value[0];
+        return (block[0] * pow2_24) +
+            (block[1] << 16) +
+            (block[2] << 8) +
+            block[3];
     }
     getInt32(changeLength = true) {
-        const block = this.getBlock(4, changeLength);
-        if (block.length < 4)
-            return 0;
-        const value = new Int32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 0; i--) {
-            view[3 - i] = block[i];
+        const num = this.getUint32(changeLength);
+        const negative = 0x80000000;
+        if (num & negative) {
+            return -(negative - (num ^ negative));
         }
-        return value[0];
+        return num;
     }
@@ -443,0 +429,0 @@ beforeAppend(size) {

build/mjs/seq_stream.js

 import { ByteStream } from "./byte_stream";
+const pow2_24 = 16777216;
 export class SeqStream {
@@ -388,51 +389,36 @@ constructor(parameters = {}) {
             return 0;
-        const value = new Uint16Array(1);
-        const view = new Uint8Array(value.buffer);
-        view[0] = block[1];
-        view[1] = block[0];
-        return value[0];
+        return (block[0] << 8) | block[1];
     }
     getInt16(changeLength = true) {
-        const block = this.getBlock(2, changeLength);
-        if (block.length < 2)
-            return 0;
-        const value = new Int16Array(1);
-        const view = new Uint8Array(value.buffer);
-        view[0] = block[1];
-        view[1] = block[0];
-        return value[0];
+        const num = this.getUint16(changeLength);
+        const negative = 0x8000;
+        if (num & negative) {
+            return -(negative - (num ^ negative));
+        }
+        return num;
     }
     getUint24(changeLength = true) {
-        const block = this.getBlock(3, changeLength);
+        const block = this.getBlock(4, changeLength);
         if (block.length < 3)
             return 0;
-        const value = new Uint32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 1; i--) {
-            view[3 - i] = block[i - 1];
-        }
-        return value[0];
+        return (block[0] << 16) |
+            (block[1] << 8) |
+            block[2];
     }
     getUint32(changeLength = true) {
         const block = this.getBlock(4, changeLength);
-        if (block.length < 4) {
+        if (block.length < 4)
             return 0;
-        }
-        const value = new Uint32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 0; i--) {
-            view[3 - i] = block[i];
-        }
-        return value[0];
+        return (block[0] * pow2_24) +
+            (block[1] << 16) +
+            (block[2] << 8) +
+            block[3];
     }
     getInt32(changeLength = true) {
-        const block = this.getBlock(4, changeLength);
-        if (block.length < 4)
-            return 0;
-        const value = new Int32Array(1);
-        const view = new Uint8Array(value.buffer);
-        for (let i = 3; i >= 0; i--) {
-            view[3 - i] = block[i];
+        const num = this.getUint32(changeLength);
+        const negative = 0x80000000;
+        if (num & negative) {
+            return -(negative - (num ^ negative));
         }
-        return value[0];
+        return num;
     }
@@ -439,0 +425,0 @@ beforeAppend(size) {

package.json

@@ -61,3 +61,3 @@ {
   "name": "bytestreamjs",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "module": "./build/mjs/index.js",
@@ -64,0 +64,0 @@ "main": "./build/cjs/index.js",

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Found 1 instance in 1 package

Fixed alerts

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Worsened metrics

Total package byte prevSize

169984

decreased by-0.6%

Lines of code

4346

decreased by-0.64%

No dependency changes