An effect for debugging by printing/logging strings.

Log the provided string

show the provided item and log it.

Run a Trace effect purely by accumulating all traced strings into a list.

Run a Trace effect by accumulating all traced strings into a list using atomic operations in IO.

This has a higher-rank type, as it makes use of InterpretReifiedC. This makes runTraceListIO very difficult to use partially applied. In particular, it can't be composed using ..

If performance is secondary, consider using the slower runTraceListIOSimple, which doesn't have a higher-rank type.

Run a Trace effect by printing each traced string to stderr.

Run Trace effect by providing each traced string to the provided Handle.

This has a higher-rank type, as it makes use of InterpretReifiedC. This makes runTraceToHandle very difficult to use partially applied. In particular, it can't be composed using ..

If performance is secondary, consider using the slower runTraceToHandleSimple, which doesn't have a higher-rank type.

Run a Trace effect by ignoring it, doing no logging at all.

Rewrite a Trace effect into a Tell String effect on top of the effect stack.

Run a Trace effect by accumulating all traced strings into a list using atomic operations in IO.

This is a less performant version of runTraceListIOSimple that doesn't have a higher-rank type, making it much easier to use partially applied.

Run Trace effect by providing each traced string to the provided Handle.

This is a less performant version of runTraceToHandle that doesn't have a higher-rank type, making it much easier to use partially applied.

WriterThreads accepts the following primitive effects:

• Regional s
• Optional s (when s is a functor)
• BaseControl b
• ListenPrim o (when o is a Monoid)
• WriterPrim o (when o is a Monoid)
• ReaderPrim i
• Mask
• Bracket
• Fix
• Split