Drop Babel 6 support (#15)

* Drop Babel 6 support

* remove babel 6 snapshots

* rename existing

Author: Andarist

.lintstagedrc

@@ -1,6 +1,6 @@
 {
   "*.{js,md}": [
-    "prettier --print-width=120 --single-quote --no-semi --trailing-comma=all --prose-wrap always --write",
+    "prettier --write",
     "git add"
   ]
 }

package.json

@@ -25,14 +25,13 @@
   "homepage": "https://github.com/Andarist/babel-plugin-annotate-pure-calls#readme",
   "dependencies": {},
   "peerDependencies": {
-    "@babel/core": "^6.0.0-0 || 7.x"
+    "@babel/core": "^7.0.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.1.0",
     "@babel/core": "^7.1.0",
     "@babel/plugin-transform-modules-commonjs": "^7.1.0",
     "@babel/preset-env": "^7.1.0",
-    "babel-core": "^6.26.3",
     "babel-plugin-tester": "^5.4.0",
     "husky": "^0.14.3",
     "jest": "^23.1.0",
@@ -50,5 +49,12 @@
     "release:patch": "npm version patch && npm publish && git push --follow-tags",
     "release:minor": "npm version minor && npm publish && git push --follow-tags",
     "release:major": "npm version major && npm publish && git push --follow-tags"
+  },
+  "prettier": {
+    "lineWidth": 120,
+    "singleQuote": true,
+    "semi": false,
+    "trailingComma": "all",
+    "proseWrap": "always"
   }
 }

src/index.js

@@ -17,7 +17,8 @@ const annotateAsPure = path => {
   path.addComment('leading', PURE_ANNOTATION)
 }
 
-const hasCallableParent = ({ parentPath }) => parentPath.isCallExpression() || parentPath.isNewExpression()
+const hasCallableParent = ({ parentPath }) =>
+  parentPath.isCallExpression() || parentPath.isNewExpression()
 
 const isUsedAsCallee = path => {
   if (!hasCallableParent(path)) {
@@ -43,11 +44,6 @@ const isExecutedDuringInitialization = path => {
   let functionParent = path.getFunctionParent()
 
   while (functionParent) {
-    // babel@6 returns "incorrectly" program as function parent
-    if (functionParent.isProgram()) {
-      return true
-    }
-
     if (!isUsedAsCallee(functionParent)) {
       return false
     }
@@ -65,7 +61,10 @@ const isInAssignmentContext = path => {
   do {
     ;({ parentPath } = parentPath || path)
 
-    if (parentPath.isVariableDeclaration() || parentPath.isAssignmentExpression()) {
+    if (
+      parentPath.isVariableDeclaration() ||
+      parentPath.isAssignmentExpression()
+    ) {
       return true
     }
   } while (parentPath !== statement)
@@ -82,7 +81,10 @@ const callableExpressionVisitor = path => {
     return
   }
 
-  if (!isInAssignmentContext(path) && !path.getStatementParent().isExportDefaultDeclaration()) {
+  if (
+    !isInAssignmentContext(path) &&
+    !path.getStatementParent().isExportDefaultDeclaration()
+  ) {
     return
   }
 

test/fixtures/annotate/arguments-nested/output.js

@@ -0,0 +1 @@
+a = /*#__PURE__*/ fn(/*#__PURE__*/ fn2(/*#__PURE__*/ fn3()))

test/fixtures/annotate/arguments-nested/output6.js

@@ -0,0 +1,2 @@
+;(inc = /*#__PURE__*/ add(/*#__PURE__*/ one())),
+  (dec = /*#__PURE__*/ sub(/*#__PURE__*/ one()))

test/fixtures/annotate/arguments-nested/output7.js

@@ -0,0 +1 @@
+;(inc = /*#__PURE__*/ add(1)), (dec = /*#__PURE__*/ sub(1))