Std.Io.foldChunks

fn

This is a callable function.

What it does

Combine every chunk of a file into one value, holding one chunk at a time.

What it costs to run does not depend on how large the file is, which is the

whole of what streaming buys: a file larger than memory is folded here and

cannot be read by anything that materialises it first.

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.
• Result makes success and recoverable failure part of the function's type.