Move annotation to CallExpression

- Instead of annotating from templateLiterals, now the annotation is
from CallExpression.
- useUglifyPure is now false by default to help getting the reviewing
stage and then we could make it true again after updating the snapshots.

Author: Osama Jandali

src/index.js

@@ -1,8 +1,11 @@
+import annotateAsPure from "@babel/helper-annotate-as-pure"
+
 import minify from './visitors/minify'
 import displayNameAndId from './visitors/displayNameAndId'
 import templateLiterals from './visitors/templateLiterals'
 import assignStyledRequired from './visitors/assignStyledRequired'
 import { noParserImportDeclaration, noParserRequireCallExpression } from './visitors/noParserImport'
+import { useUglifyPure } from './utils/options'
 
 export default function({ types: t }) {
   return {
@@ -11,6 +14,11 @@ export default function({ types: t }) {
         noParserImportDeclaration(path, state)
       },
       CallExpression(path, state) {
+        if(useUglifyPure(state)){
+          if(path.parent.type == 'VariableDeclarator' || path.parent.type == 'TaggedTemplateExpression'){
+            annotateAsPure(path.node)
+          }
+        }
         noParserRequireCallExpression(path, state)
       },
       TaggedTemplateExpression(path, state) {

src/utils/options.js

@@ -8,4 +8,4 @@ export const useFileName = (state) =>getOption(state, 'fileName')
 export const useMinify = (state) => getOption(state, 'minify')
 export const useCSSPreprocessor = (state) => getOption(state, 'preprocess', false) // EXPERIMENTAL
 export const useTranspileTemplateLiterals = (state) => getOption(state, 'transpileTemplateLiterals')
-export const useUglifyPure = (state) => getOption(state, 'uglifyPure')
+export const useUglifyPure = (state) => getOption(state, 'uglifyPure', false)

src/visitors/templateLiterals/index.js

@@ -3,7 +3,6 @@ import {
   useTranspileTemplateLiterals,
   useUglifyPure
 } from '../../utils/options'
-import annotateAsPure from "@babel/helper-annotate-as-pure";
 
 import preprocess from './preprocess'
 import transpile from './transpile'
@@ -16,10 +15,4 @@ export default (path, state) => {
   } else if (useTranspileTemplateLiterals(state)) {
     transpile(path, state)
   }
-
-  // add uglify pure (/*#__PURE__*/) comment before function calls
-  if(useUglifyPure(state)){
-    path.node.leadingComments = path.node.leadingComments || []
-    annotateAsPure(path)
-  }
 }