babel-plugin-minify-constant-folding - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2

lib/index.js

 "use strict";
 
+function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+
 var evaluate = require("babel-helper-evaluate-path");
 
-module.exports = function (_ref) {
-  var t = _ref.types,
-      traverse = _ref.traverse;
+var _require = require("./replacements"),
+    FALLBACK_HANDLER = _require.FALLBACK_HANDLER;
 
+function getName(member) {
+  if (member.computed) {
+    switch (member.property.type) {
+      case "StringLiteral":
+      case "NumericLiteral":
+        return member.property.value;
+      case "TemplateLiteral":
+        return;
+    }
+  } else {
+    return member.property.name;
+  }
+}
+
+function swap(path, member, handlers) {
+  var key = getName(member);
+  if (key === undefined) return;
+  var handler = handlers[key];
+  if (typeof handler !== "function") {
+    if (typeof handlers[FALLBACK_HANDLER] === "function") {
+      handler = handlers[FALLBACK_HANDLER].bind(member.object, key);
+    } else {
+      return false;
+    }
+  }
+
+  for (var _len = arguments.length, args = Array(_len > 3 ? _len - 3 : 0), _key = 3; _key < _len; _key++) {
+    args[_key - 3] = arguments[_key];
+  }
+
+  var replacement = handler.apply(member.object, args);
+  if (replacement) {
+    path.replaceWith(replacement);
+    return true;
+  }
+  return false;
+}
+
+module.exports = function (babel) {
+  var replacements = require("./replacements.js")(babel);
   var seen = Symbol("seen");
+  var t = babel.types,
+      traverse = babel.traverse;
 
+
   return {
@@ -119,2 +163,19 @@ name: "minify-constant-folding",
         }
+      },
+      CallExpression(path) {
+        var node = path.node;
+        var member = node.callee;
+
+        if (t.isMemberExpression(member)) {
+          var helpers = replacements[member.object.type];
+          if (!helpers || !helpers.calls) return;
+          swap.apply(undefined, [path, member, helpers.calls].concat(_toConsumableArray(node.arguments)));
+        }
+      },
+      MemberExpression(path) {
+        var member = path.node;
+
+        var helpers = replacements[member.object.type];
+        if (!helpers || !helpers.members) return;
+        swap(path, member, helpers.members);
       }
@@ -121,0 +182,0 @@ }

package.json

 {
   "name": "babel-plugin-minify-constant-folding",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/babel/babili#readme",

README.md

 # babel-plugin-minify-constant-folding
 
-Tries to evaluate expressions and inline the result. For now only deals with numbers and strings.
+Tries to evaluate expressions and inline the result.
 
@@ -13,3 +13,18 @@ ## Example
 4 | 3;
-"b" + a + "c" + "d" + g + z + "f" + "h" + "z"
+"b" + a + "c" + "d" + g + z + "f" + "h" + "i"
+
+[a, b, c].concat([d, e], f, g, [h]);
+["a", "b", "c"].join();
+["a", "b", "c"].join('@');
+[1, 2, 3].length;
+[1, 2, 3][1];
+[1, 2, 3].shift();
+[1, 2, 3].slice(0, 2);
+[a, b, c].pop();
+[a, b, c].reverse();
+"a,b,c".split(",");
+"abc"[0];
+"abc".charAt();
+"abc".charAt(1);
+"abc".length;
 ```
@@ -23,3 +38,19 @@
 7;
-"b" + a + "cd" + g + z + "fhz";
+"b" + a + "cd" + g + z + "fhi";
+
+[a, b, c, d, e, f, g, h];
+"a,b,c";
+"a@b@c";
+3;
+2;
+2;
+[1, 2];
+c;
+[c, b, a];
+["a", "b", "c"];
+"a";
+"a";
+"a";
+"b";
+3;
 ```
@@ -26,0 +57,0 @@

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Found 1 instance in 1 package

Fixed alerts

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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

12097

increased by151.24%

Number of package files

5

increased by25%

Lines of code

291

increased by191%

Number of lines in readme file

87

increased by55.36%

No dependency changes