chalk imported from npm:prettier is somehow incomplete

[yamavol]

This deno code threw an error

import prettier from 'npm:prettier@3.1.0';
await prettier.format('</p>', { parser: 'html'});
/* TypeError: Cannot read properties of undefined (reading 'bold') */

but I was expecting this error to be thrown. (This is a node.js script)

const prettier = require('prettier')
prettier.format('</p>', { parser: 'html'});
/* SyntaxError: Unexpected closing tag "p". It may happen when the tag has 
    already been closed by another tag. */

The error is thrown from prettier lib

function getDefs(chalk2) {
  return {
    keyword: chalk2.cyan,     // these properties are defined...
    capitalized: chalk2.yellow,
    jsxIdentifier: chalk2.yellow,
    punctuator: chalk2.yellow,
    number: chalk2.magenta,
    string: chalk2.green,
    regex: chalk2.magenta,
    comment: chalk2.grey,
    invalid: chalk2.white.bgRed.bold   // but bgRed is undefined
  };
}

...which was strange. This indicates npm:chalk imported from npm:prettier is incomplete.

This code works fine in Node.js, so I think it is deno related. I know npm support is still on progress, but does this issue reproduce? Is this a known issue?

#13321 states that old version of chalk do not work with deno, but I npm:prettier is depending on chalk@5, so I think it is a different issue. I also found this error will not reproduce if I launch and attach the debugger (using VSCode). I have no clue about this behavior.

my environment:

deno --version
deno 1.38.2 (release, x86_64-pc-windows-msvc)
v8 12.0.267.1
typescript 5.2.2

tips:

import chalk from "npm:chalk@5.3.0";
console.log(chalk.white.bgRed.bold('abc')); // this was ok

[lucacasonato]

Can you post your deno.lock file?

[yamavol]

deno.lock

{
  "version": "3",
  "packages": {
    "specifiers": {
      "npm:chalk@5.3.0": "npm:chalk@5.3.0",
      "npm:prettier@3.1.0": "npm:prettier@3.1.0"
    },
    "npm": {
      "chalk@5.3.0": {
        "integrity": "sha512-dLitG79d+GV1Nb/VYcCDFivJeK1hiukt9QjRNVOsUtTy1rR1YJsmpGGTZ3qJos+uw7WmWF4wUwBd9jxjocFC2w==",
        "dependencies": {}
      },
      "prettier@3.1.0": {
        "integrity": "sha512-TQLvXjq5IAibjh8EpBIkNKxO749UEWABoiIZehEPiY4GNpVdhaFKqSTu+QrlU6D2dPAfubRmtJTi4K4YkQ5eXw==",
        "dependencies": {}
      }
    }
  },
  "remote": {}
}

[dsherret]

This is because chalk2 relies on the __proto__ and prettier bundles chalk 2. Prettier should upgrade to a more modern version of chalk. Related: #16775

[dsherret]

Closing as working as designed. Deno doesn't allow __proto__ for security reasons. This will be fixed once Babel 8 is released and prettier upgrades to that. Babel 8 uses a more modern chalk version that doesn't use __proto__.

I opened #21276 to potentiatlly have a way to opt-into enabling this.