binary-parser-encoder - npm Package Compare versions

Comparing version 1.4.4 to 1.4.5

lib/binary_parser.js

@@ -79,2 +79,5 @@ //========================================================================================
       : 256;
+  this.encoderOpts = {
+    bitEndianess: false
+  };
 };
@@ -251,2 +254,7 @@
 
+Parser.prototype.encoderSetOptions = function(opts) {
+  Object.assign(this.encoderOpts, opts);
+  return this;
+};
+
 Parser.prototype.create = function(constructorFn) {
@@ -471,2 +479,3 @@ if (!(constructorFn instanceof Function)) {
   parser.endian = this.endian;
+  parser.encoderOpts = this.encoderOpts;
 
@@ -674,11 +683,21 @@ if (this.head) {
 
+    var isBitLittleEndian =
+      this.endian === "le" && this.encoderOpts.bitEndianess;
     var tmpVal = ctx.generateTmpVariable();
+    var boundVal = ctx.generateTmpVariable();
     ctx.pushCode("var {0} = 0;", tmpVal);
+    ctx.pushCode("var {0} = 0;", boundVal);
     var bitOffset = 0;
     ctx.bitFields.forEach(function(parser) {
       ctx.pushCode(
+        "{0} = ({1} & {2});",
+        boundVal,
+        parser.varName,
+        (1 << parser.options.length) - 1
+      );
+      ctx.pushCode(
         "{0} |= ({1} << {2});",
         tmpVal,
-        parser.varName,
-        sum - parser.options.length - bitOffset
+        boundVal,
+        isBitLittleEndian ? bitOffset : sum - bitOffset - parser.options.length
       );
@@ -685,0 +704,0 @@ ctx.pushCode("{0} = {0} >>> 0;", tmpVal);

package.json

 {
   "name": "binary-parser-encoder",
-  "version": "1.4.4",
+  "version": "1.4.5",
   "description": "Blazing-fast binary parser builder",
   "main": "lib/binary_parser.js",
   "devDependencies": {
-    "istanbul": "^0.4.5",
-    "mocha": "^3.5.3",
-    "prettier": "^1.9.2"
+    "mocha": "^6.1.4",
+    "nyc": "^14.1.0",
+    "prettier": "^1.17.1"
   },
@@ -15,3 +15,3 @@ "scripts": {
     "test": "npx mocha --reporter spec",
-    "cover": "npx istanbul cover --report html node_modules/.bin/_mocha"
+    "cover": "npx nyc --reporter html mocha"
   },
@@ -47,3 +47,3 @@ "keywords": [
   "dependencies": {
-    "smart-buffer": "^4.0.1"
+    "smart-buffer": "^4.0.2"
   },
@@ -50,0 +50,0 @@ "engines": {

README.md

@@ -341,2 +341,17 @@ # Binary-parser-encoder
 
+### setEncoderOptions(opts)
+Set specific options for encoding.
+Current supported `opts` object may contain:
+  - bitEndianess: true|false (default false) When true, tell the encoder to respect endianess BITs order, so that
+    encoding is exactly the reverse of the parsing process for bits fields.
+
+```javascript
+var parser = new Parser()
+  .endianess("little")
+  .setEncoderOpts({bitEndianess: true}) // Use BITs endianess for bits fields
+  .bit4("a")
+  .bit4("b")
+  .uint16("c");
+```
+
 ### namely(alias)
@@ -343,0 +358,0 @@ Set an alias to this parser, so there will be an opportunity to refer to it by

No alert changes

Improved metrics

Total package byte prevSize

922965

1525.14%

Number of package files

49

880%

Lines of code

2161

91.75%

Number of lines in readme file

524

2.95%

Dependency changes

• Updated

  smart-buffer@^4.0.2