acorn-private-class-elements - npm Package Compare versions

Comparing version 0.2.0 to 0.2.3

.eslintrc.json

@@ -84,3 +84,3 @@ {
         "getter-return": "error",
-        "global-require": "error",
+        "global-require": "warn",
         "guard-for-in": "error",
@@ -87,0 +87,0 @@ "handle-callback-err": "error",

CHANGELOG.md

@@ -0,1 +1,8 @@
+## 0.2.3 (2020-04-22)
+
+(Skipped 0.2.1 and 0.2.2 because I accidentally called 0.2.0 0.2.2 in git)
+
+* Use injected acorn instance if available
+* Uses `Object.getPrototypeOf` if available instead of `__proto__`
+
 ## 0.2.0 (2020-03-07)
@@ -2,0 +9,0 @@

index.js

 "use strict"
 
-const acorn = require("acorn")
-if (acorn.version.indexOf("6.") != 0 && acorn.version.indexOf("6.0.") == 0 && acorn.version.indexOf("7.") != 0) {
-  throw new Error(`acorn-private-class-elements requires acorn@^6.1.0 or acorn@7.0.0, not ${acorn.version}`)
+const getPrototype = Object.getPrototypeOf || (o => o.__proto__)
+
+const getAcorn = Parser => {
+  if (Parser.acorn) return Parser.acorn
+
+  const acorn = require("acorn")
+
+  if (acorn.version.indexOf("6.") != 0 && acorn.version.indexOf("6.0.") == 0 && acorn.version.indexOf("7.") != 0) {
+    throw new Error(`acorn-private-class-elements requires acorn@^6.1.0 or acorn@7.0.0, not ${acorn.version}`)
+  }
+
+  // Make sure `Parser` comes from the same acorn as we `require`d,
+  // otherwise the comparisons fail.
+  for (let cur = Parser; cur && cur !== acorn.Parser; cur = getPrototype(cur)) {
+    if (cur !== acorn.Parser) {
+      throw new Error("acorn-private-class-elements does not support mixing different acorn copies")
+    }
+  }
+  return acorn
 }
-const tt = acorn.tokTypes
-const TokenType = acorn.TokenType
 
@@ -16,11 +30,3 @@ module.exports = function(Parser) {
 
-  // Make sure `Parser` comes from the same acorn as our `tt`,
-  // otherwise the comparisons fail.
-  let cur = Parser
-  while (cur && cur !== acorn.Parser) {
-    cur = cur.__proto__
-  }
-  if (cur !== acorn.Parser) {
-    throw new Error("acorn-private-class-elements does not support mixing different acorn copies")
-  }
+  const acorn = getAcorn(Parser)
 
@@ -94,3 +100,3 @@ Parser = class extends Parser {
     parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow) {
-      if (!this.eat(tt.dot)) {
+      if (!this.eat(acorn.tokTypes.dot)) {
         return super.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow)
@@ -123,4 +129,4 @@ }
   }
-  Parser.prototype.privateNameToken = new TokenType("privateName")
+  Parser.prototype.privateNameToken = new acorn.TokenType("privateName")
   return Parser
 }

package.json

@@ -23,3 +23,3 @@ {
   },
-  "version": "0.2.0",
+  "version": "0.2.3",
   "devDependencies": {
@@ -26,0 +26,0 @@ "acorn": "^7.0.0",

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Worsened metrics

Total package byte prevSize

17712

decreased by-68.32%

Number of package files

8

decreased by-11.11%

Lines of code

429

decreased by-71.01%

No dependency changes