babel-plugin-minify-simplify - npm Package Compare versions

Comparing version 0.5.0-alpha.34c3efe9 to 0.5.0-alpha.367cc048

lib/helpers.js

 "use strict";
 
-const VOID_0 = t => t.unaryExpression("void", t.numericLiteral(0), true); // Types as Symbols - for comparing types
+const VOID_0 = t => t.unaryExpression("void", t.numericLiteral(0), true);
 
+const evaluate = require("babel-helper-evaluate-path"); // Types as Symbols - for comparing types
 
+
 const types = {}; // This is a test key which is used to avoid Object.keys check
@@ -42,3 +44,3 @@ // Object.keys() check is really expensive
   if (isNodeOfType(t, inputPath.node, patternValue)) return true;
-  const evalResult = inputPath.evaluate();
+  const evalResult = evaluate(inputPath);
   if (!evalResult.confident || !inputPath.isPure()) return false;
@@ -45,0 +47,0 @@ return evalResult.value === patternValue;

lib/index.js

@@ -117,2 +117,10 @@ "use strict";
       },
+
+      BinaryExpression(path) {
+        if (["!=", "=="].indexOf(path.node.operator) !== -1) {
+          undefinedToNull(path.get("left"));
+          undefinedToNull(path.get("right"));
+        }
+      },
+
       LogicalExpression: {
@@ -1148,2 +1156,20 @@ exit: logicalExpression.simplifyPatterns
   }
+
+  function isPureVoid(path) {
+    return path.isUnaryExpression({
+      operator: "void"
+    }) && path.isPure();
+  }
+
+  function isGlobalUndefined(path) {
+    return path.isIdentifier({
+      name: "undefined"
+    }) && !path.scope.getBinding("undefined");
+  }
+
+  function undefinedToNull(path) {
+    if (isGlobalUndefined(path) || isPureVoid(path)) {
+      path.replaceWith(t.nullLiteral());
+    }
+  }
 };

lib/logical-expression.js

@@ -7,2 +7,4 @@ "use strict";
 
+const evaluate = require("babel-helper-evaluate-path");
+
 module.exports = t => {
@@ -14,3 +16,3 @@ const OP_AND = input => input === "&&";
   function simplifyPatterns(path) {
-    // cache of path.evaluate()
+    // cache of evaluate(path)
     const evaluateMemo = new Map();
@@ -27,3 +29,3 @@
 
-      const evalResult = input.evaluate();
+      const evalResult = evaluate(input);
       evaluateMemo.set(input, evalResult);
@@ -42,3 +44,3 @@ return evalResult.confident && input.isPure() && evalResult.value;
 
-      const evalResult = input.evaluate();
+      const evalResult = evaluate(input);
       evaluateMemo.set(input, evalResult);
@@ -67,3 +69,3 @@ return evalResult.confident && input.isPure() && !evalResult.value;
       } else {
-        value = left.evaluate().value;
+        value = evaluate(left).value;
       }
@@ -70,0 +72,0 @@

package.json

 {
   "name": "babel-plugin-minify-simplify",
-  "version": "0.5.0-alpha.34c3efe9",
+  "version": "0.5.0-alpha.367cc048",
   "description": "",
@@ -15,6 +15,6 @@ "keywords": [
   "dependencies": {
-    "babel-helper-flip-expressions": "^0.5.0-alpha.34c3efe9",
+    "babel-helper-flip-expressions": "^0.5.0-alpha.367cc048",
     "babel-helper-is-nodes-equiv": "^0.0.1",
-    "babel-helper-to-multiple-sequence-expressions": "^0.5.0-alpha.34c3efe9"
+    "babel-helper-to-multiple-sequence-expressions": "^0.5.0-alpha.367cc048"
   }
 }

README.md

@@ -54,3 +54,3 @@ # babel-plugin-minify-simplify
 ```sh
-npm install babel-plugin-minify-simplify
+npm install babel-plugin-minify-simplify --save-dev
 ```
@@ -57,0 +57,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

58566

increased by1.26%

Lines of code

1480

increased by1.58%

Dependency changes

• Updatedbabel-helper-flip-expressions@^0.5.0-alpha.367cc048

• Updatedbabel-helper-to-multiple-sequence-expressions@^0.5.0-alpha.367cc048