ri > Puma::NullIO

Che Dong

📦 Puma::NullIO < Object

🚀 Quick Reference

Use Case	Command	Description
🔍 Create a null IO	`Puma::NullIO.new`	Creates an IO-like object that always appears empty
📖 Read from null IO	`nullio.read`	Returns empty string (no data)
✍️ Write to null IO	`nullio.write("data")`	Ignores input, returns number of bytes written (0)
🔄 Iterate over lines	`nullio.each { \|line\| }`	No iteration (no lines)
🔚 Check end-of-file	`nullio.eof?`	Always returns `true`

📝 Description

Provides an IO-like object that always appears to contain no data. Used as the value for rack.input when the request has no body.

🔧 Instance Methods

close — Closes the IO (no-op)
each — Iterates over lines (none)
eof? — Returns true
flush — Flushes (no-op)
gets — Returns nil
puts — Writes with newline (ignored)
read — Returns empty string
rewind — Rewinds (no-op)
size — Returns 0
string — Returns empty string
sync — Returns true
sync= — Sets sync (ignored)
write — Ignores input, returns 0

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