Format Selection can throw syntax errors

[dallonf]

Your Environment

• Prettier version: 2.8.8
• node version: v18.18.2
• package manager: pnpm@8.9.0
• IDE: VS Code

Describe the bug

When using "Format Selection" tool to format only part of a document in VS Code with this plugin enabled, it will often fail with a syntax error of "SyntaxError: 'return' outside of function." or similar.

To Reproduce

In a project that has this Prettier plugin configured, add a file with these contents (misformatting and all):

export function something() {
  if (true)
    return   /* space intentional */   5
}

In VS Code with the Prettier plugin, select the interior of the function between curly brackets, and press Cmd/Ctrl-Shift-P to open the command palette and run the "Format Selection" command. Then check the Prettier output in the Output pane for the error.

Expected behavior

The code should be formatted, same as if this plugin was not installed at all.

Screenshots, code sample, etc

Configuration File (cat .prettierrc, prettier.config.js, .prettier.js)

// prettier.config.js
module.exports = {
  singleQuote: true,
  semi: true,
  plugins: [
    // I commented out the other plugin for this test
    // 'prettier-plugin-tailwindcss',
    '@trivago/prettier-plugin-sort-imports',
  ],
  // `tailwindFunctions` has to do with the commented-out plugin
  tailwindFunctions: ['clsx', 'cn', 'cva'],
  importOrder: [
    // framework-level packages
    '^vitest(/.*)?$',
    '^@testing-library(/.*)?$',
    '^(react|next)(/.*)?$',

    '<THIRD_PARTY_MODULES>',
    '^@/.*', // Absolute imports from the current project
    '^[./]', // Relative imports
  ],
};

Error log

["ERROR" - 9:34:30 AM] Error formatting document.
SyntaxError: 'return' outside of function. (10:2)
    at constructor (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:356:19)
    at TypeScriptParserMixin.raise (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:3223:19)
    at TypeScriptParserMixin.parseReturnStatement (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:13000:12)
    at TypeScriptParserMixin.parseStatementContent (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:12626:21)
    at TypeScriptParserMixin.parseStatementContent (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:9345:18)
    at TypeScriptParserMixin.parseStatementLike (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:12593:17)
    at TypeScriptParserMixin.parseStatementOrSloppyAnnexBFunctionDeclaration (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:12583:17)
    at TypeScriptParserMixin.parseIfStatement (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:12994:28)
    at TypeScriptParserMixin.parseStatementContent (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:12624:21)
    at TypeScriptParserMixin.parseStatementContent (/Users/dallonf/devroot/biggie/node_modules/.pnpm/@babel+parser@7.23.0/node_modules/@babel/parser/lib/index.js:9345:18)

Contribute to @trivago/prettier-plugin-sort-imports

• I'm willing to fix this bug 🥇