Braces after case get pushed onto new line

[Muon]

Description

If I use braces to start a new block in a case statement to scope some variables, the beautifier moves the braces onto the next line and increases the indentation. However, I would want the braces to remain in line with the case.

Input

The code looked like this before beautification:

switch (op) {
    case "-":
    case "*":
    case "div":
    case "mod": {
        const left = this.left.toIntegerFormula();
        const right = this.right.toIntegerFormula();
        return [op, left, right];
    }
    case "+": {
        if (this.getType() === Type.NUMBER) {
            const left = this.left.toIntegerFormula();
            const right = this.right.toIntegerFormula();
            return [op, left, right];
        }
    }
}

Expected Output

The code should be unchanged after beautification.

Actual Output

The code actually looked like this after beautification:

switch (op) {
    case "-":
    case "*":
    case "div":
    case "mod":
        {
            const left = this.left.toIntegerFormula();
            const right = this.right.toIntegerFormula();
            return [op, left, right];
        }
    case "+":
        {
            if (this.getType() === Type.NUMBER) {
                const left = this.left.toIntegerFormula();
                const right = this.right.toIntegerFormula();
                return [op, left, right];
            }
        }
}

Environment

Checked on both on the current web beautifier and the current npm package.

Settings

{
    "indent_size": 4,
    "indent_char": " ",
    "indent_level": 0,
    "indent_with_tabs": false,
    "preserve_newlines": true,
    "max_preserve_newlines": 10,
    "jslint_happy": false,
    "space_after_anon_function": false,
    "brace_style": "collapse,preserve-inline",
    "keep_array_indentation": false,
    "keep_function_indentation": false,
    "space_before_conditional": true,
    "break_chained_methods": false,
    "eval_code": false,
    "unescape_strings": false,
    "wrap_line_length": 0
}

[StructByLightning]

The value of brace_style doesn't make any difference as well.

[cheesits456]

I'm having the same problem and it's annoying because the extra indentation caused by the { being on its own line is conflicting with ESLint

Example

Code before beautifying:

const conzole = console, // to bypass ESLint's "no-console" rule without needing to actually change any configuration
 input = 1;
 
switch (input) {
 case 1:
  conzole.log("one");
  break;
 case 2: {
  conzole.log("two");
  break;
 }
 case 3:
  conzole.log("three");
  break;
}

ESLint output before beautifying:

✓ 0 errors and warnings

Code after beautifying:

const conzole = console, // to bypass ESLint's "no-console" rule without needing to actually change any configuration
 input = 1;

switch (input) {
 case 1:
  conzole.log("one");
  break;
 case 2:
  {
   conzole.log("two");
   break;
  }
 case 3:
  conzole.log("three");
  break;
}

ESLint output after beautifying:

   9:1  error  Expected indentation of 1 space but found 2   indent
  10:1  error  Expected indentation of 2 spaces but found 3  indent
  11:1  error  Expected indentation of 2 spaces but found 3  indent
  12:1  error  Expected indentation of 1 space but found 2   indent

✖ 4 problems (4 errors, 0 warnings)

Config

JS Beautifier config:

{
 "indent_size": 1,
 "indent_char": " ",
 "indent_with_tabs": false,
 "preserve_newlines": 1,
 "max_preserve_newlines": 2,
 "space_in_paren": false,
 "space_in_empty_paren": false,
 "e4x": false,
 "jslint_happy": false,
 "space_after_anon_function": false,
 "brace_style": "collapse,preserve-inline",
 "keep_array_indentation": false,
 "keep_function_indentation": false,
 "eval_code": false,
 "unescape_strings": false,
 "wrap_line_length": 0,
 "unindent_chained_methods": false,
 "break_chained_methods": false,
 "end_with_newline": false,
 "comma_first": false,
 "operator_position": "before-newline"
}

ESLint config:

{
 "env": {
  "es6": true,
  "node": true
 },
 "extends": "eslint:recommended",
 "parserOptions": {
  "ecmaVersion": 2015,
  "sourceType": "module"
 },
 "rules": {
  "indent": ["error", 1, { "SwitchCase": 1 }],
  "linebreak-style": ["error", "unix"],
  "no-cond-assign": ["error", "except-parens"],
  "quotes": ["error", "double"],
  "semi": ["error", "always"]
 }
}