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Showing content from https://github.com/prettier/prettier/issues/4672 below:

`prettier.format()` slow for deeply nested function calls in input string · Issue #4672 · prettier/prettier · GitHub

When the input string contains many (about 25) nested function calls in JavaScript, prettier.format() takes about 2.5 minutes to return. This seems to occur when coreFormat() converts the AST to a document (in printAstToDoc()).

Environment:

• macOS High Sierra 10.13.4
• Node 8.9.4 and 9.11.1
• MacBook Pro 2017, 2.7GHz i7, 16GB 2133MHz LPDDR3

Prettier 1.13.5
Playground link

Input:

_c("div", [
  _c("div", [
    _c("div", [
      _c("div", [
        _c("div", [
          _c("div", [
            _c("div", [
              _c("div", [
                _c("div", [
                  _c("div", [
                    _c("div", [
                      _c("div", [
                        _c("div", [
                          _c("div", [
                            _c("div", [
                              _c("div", [
                                _c("div", [
                                  _c("div", [
                                    _c("div", [
                                      _c("div", [
                                        _c("div", [
                                          _c("div", [
                                            _c("div", [_c("div", [_c("div")])])
                                          ])
                                        ])
                                      ])
                                    ])
                                  ])
                                ])
                              ])
                            ])
                          ])
                        ])
                      ])
                    ])
                  ])
                ])
              ])
            ])
          ])
        ])
      ])
    ])
  ])
])

Output:
(same as input after 159 seconds)

Expected behavior:
prettier.format(input) returns within a few seconds (much sooner than 159 seconds)

naotokono, duailibe, suchipi, aldarund, TheAlexLichter and 7 more

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