Std.Io.readFrom

fn

This is a callable function.

What it does

The next bytes from a reader, or nothing when the input has ended.

Nothing is a different answer from an empty sequence: a reader that could

not tell them apart would either stop early or never stop.

Read the signature

• The text after the name is the type checked by Pudu.
• Read arrows from left to right: inputs come first, and the final type is returned.
• & borrows a value for this call instead of moving or copying it.
• Names inside [ ] are type arguments, such as the item type held by a collection.
• Option holds Some(value) or None when no value is available.
• Result makes success and recoverable failure part of the function's type.