minify
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Using plug-ins to report errors Cannot read property 'getCode' of undefined
Describe the bug
To Reproduce
Minimal code to reproduce the bug
const {
production,
} = require('./config/index');
const date = {
presets: [
[
'@babel/preset-env',
{
useBuiltIns: 'usage',
},
],
'@babel/preset-typescript',
],
plugins: ['@babel/proposal-class-properties', '@babel/proposal-object-rest-spread'],
};
if (production) {
date.presets.push('minify');
date.plugins.push('transform-remove-console', 'transform-remove-debugger',
'minify-dead-code-elimination', 'minify-guarded-expressions', 'minify-mangle-names',
'minify-replace', 'minify-simplify', 'transform-undefined-to-void', 'minify-type-constructors',
'transform-merge-sibling-variables', 'transform-minify-booleans');
}
module.exports = date;
Actual Output
If there is no Error thrown,
Module build failed (from ./node_modules/happypack/loader.js):
TypeError: Cannot read property 'getCode' of undefined
at NodePath.getSource (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\path\introspection.js:164:27)
at PluginPass.Program (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\babel-plugin-minify-simplify\lib\index.js:490:41)
at newFn (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\visitors.js:193:21)
at NodePath._call (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\path\context.js:53:20)
at NodePath.call (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\path\context.js:40:17)
at NodePath.visit (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\path\context.js:88:12)
at TraversalContext.visitQueue (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\context.js:118:16)
at TraversalContext.visitSingle (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\context.js:90:19)
at TraversalContext.visit (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\context.js:146:19)
at Function.traverse.node (C:\Users\Administrator\Desktop\WebPackMultiPageConfiguration\node_modules\@babel\traverse\lib\index.js:94:17)
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! [email protected] build: `cross-env NODE_ENV=production webpack --config build/webpack.prod.js`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
Expected Output
Successful output
Stack Trace
If applicable,
Configuration
How are you using babel-minify?
webpack4
babel-minify version: 0.4.3
babel version : 7.0.0-beta.49
babel-minify-config:
{
removeConsole: true,
keepFnNames: true
}
babelrc:
{
plugins: [],
presets: []
}
Possible solution
Additional context
I also have this error if babel-plugin-closure-elimination
is in plugins array
Can confirm this error occurs when babel-plugin-minify-mangle-names
is in .babelrc
plugins
Yes, I have this problem to with Storybook when I am using Typescript
Hello @shrey150,
Can confirm this error occurs when
babel-plugin-minify-mangle-names
is in.babelrc
plugins
Do you use the preset
minify
by any chance? If so you need to remove the plugin from the plugin
section and set the options via the preset
. e.g:
"env": {
"production": {
"presets": [
["minify", {
"mangle": {
"topLevel": true,
"keepFnName": false,
"keepClassName": false
},