Wrong error message: SyntaxError: Cannot read property 'type' of undefined (0:0)

[ups-ishii]

Environments:

• Prettier Version: 2.1.2
• Running Prettier via: CLI
• Runtime: Node.js v12.16.1
• Operating System: macOS

Steps to reproduce:

cat <<_EOF > sample.js
const p = {
  set name(){}
};
_EOF
npx prettier@2.1.2 sample.js

Expected behavior:

SyntaxError: setter must have exactly one formal parameter (2:3) is expected.

• npx prettier@1.18.2 sample.js

sample.js[error] sample.js: SyntaxError: setter must have exactly one formal parameter (2:3)
[error]   1 | const p = {
[error] > 2 |   set name(){}
[error]     |   ^
[error]   3 | };
[error]   4 |

Actual behavior:

• npx prettier@2.1.2 sample.js

sample.js[error] sample.js: SyntaxError: Cannot read property 'type' of undefined (0:0)
[error]   1 | const p = {
[error]   2 |   set name(){}
[error]   3 | };

FYI
It looks babel/parser throws right error but Prettier fails to parse the babel/parser error. may be.

• npx @babel/parser sample.js

setter must have exactly one formal parameter (2:2)

Thank you

[fisker]

Upstream bug, tracked babel/babel#12074

[fisker]

This is fixed by #9408

[ups-ishii]

Thank you very much!