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error: Cannot read property 'isIfStatement' of null

See original GitHub issue

Bug Report

Current Behavior babel-preset-minify Cannot read property ‘isIfStatement’ of null

Input Code https://github.com/eeve/test.v2

// module-a.js
export default function () {
    return 1;
}

Babel Configuration (.babelrc, package.json, cli command)

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "debug": true,
        "useBuiltIns": "usage",
        "targets": {
          "node": 6
        }
      }
    ],
    "minify"
  ],
  "sourceMaps": "inline"
}

Environment

Babel version(s): v7.0.0-beta.47
Node/npm version: Node 8.9.4/npm 6.0.0
Monorepo: no
How you are using Babel: cli

Additional context/Screenshots

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:11 (1 by maintainers)

Top GitHub Comments

16reactions

ChrisWilescommented, Jun 21, 2018

When will this be fixed on the main branch?

12reactions

swernerxcommented, Jun 4, 2018

Still the same issue for me. Please re-open.


Cannot read property 'isIfStatement' of null

    at evaluateBasedOnControlFlow (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/babel-helper-evaluate-path/lib/index.js:159:32)
    at evaluateIdentifier (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/babel-helper-evaluate-path/lib/index.js:117:26)
    at evaluate (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/babel-helper-evaluate-path/lib/index.js:19:12)
    at PluginPass.Expression (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/babel-plugin-minify-constant-folding/lib/index.js:165:21
)
    at PluginPass.newFn (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/visitors.js:230:17)
    at newFn (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/visitors.js:193:21)
    at NodePath._call (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/path/context.js:53:20)
    at NodePath.call (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/path/context.js:40:17)
    at NodePath.visit (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/path/context.js:88:12)
    at TraversalContext.visitQueue (/Users/swerner/Workspace/init/init-stopnet-display/node_modules/@babel/traverse/lib/context.js:118:16)

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