undefined | Better HN

0 pointsphilipwhiuk4mo ago0 comments

For unwrap, Cloudflare should consider adding lint tooling that prevents unwrap being added to production code.

0 comments

groundzeros20154mo ago

It’s a feature, not a bug. Assert assumptions and crash on bad one.

Crashing is not an outage. It’s a restart and a stack trace for you to fix.

Even if you want it to crash, you almost never unwrap. At the very least you would use .expect() so you get a reasonable error message -- or even better you handle the potential error.

nmadden4mo ago

> Crashing is not an outage.

Are you in the right thread?

groundzeros20154mo ago

Did you skip all the other context about the other systems that failed?

The problem was a query producing incorrect data. The crash helped them find it.

What do you think happens when a program crashes?

1 more reply

frumplestlatz4mo ago

The type system is for asserting assumptions like "this cannot fail". You don't crash at all.

groundzeros20154mo ago

Most properties of programs cannot be validated at compile time and must be checked at runtime.

But you’re still missing it. Crashing is not bad. It’s good. It’s how you leverage OS level security and reliability.

1 more reply

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0 comments

groundzeros20154mo ago

It’s a feature, not a bug. Assert assumptions and crash on bad one.

Crashing is not an outage. It’s a restart and a stack trace for you to fix.

empath754mo ago

Even if you want it to crash, you almost never unwrap. At the very least you would use .expect() so you get a reasonable error message -- or even better you handle the potential error.

nmadden4mo ago

> Crashing is not an outage.

Are you in the right thread?

groundzeros20154mo ago

Did you skip all the other context about the other systems that failed?

The problem was a query producing incorrect data. The crash helped them find it.

What do you think happens when a program crashes?

1 more reply

frumplestlatz4mo ago

The type system is for asserting assumptions like "this cannot fail". You don't crash at all.

groundzeros20154mo ago

Most properties of programs cannot be validated at compile time and must be checked at runtime.

But you’re still missing it. Crashing is not bad. It’s good. It’s how you leverage OS level security and reliability.

1 more reply

j / k navigate · click thread line to collapse