debugAsync

Toggle single-step debugging for a coroutine.

Write sequential-looking code that pauses and resumes.
gen() creates a generator, an iterator that returns a
value and pauses each time it reaches a yield() call.
async() creates a promise, which runs until it reaches
a call to await(), then resumes when information is available.
These work similarly to generator and async constructs
from 'Python' or 'JavaScript'. Objects produced are
compatible with the 'iterators' and 'promises' packages.
Version 0.3 supports on.exit, single-step debugging,
stream() for making asynchronous iterators, and
delimited goto() in switch() calls.

Peter Meilstrup

async

Coroutines: Generators / Yield, Async / Await, and Streams

debugAsync function

<dl><dt>x</dt>
<dd>A coroutine object as constructed by (async, gen or
stream).</dd>
<dt>R</dt>
<dd>Set TRUE to step through expressions at user level</dd>
<dt>internal</dt>
<dd>Set TRUE to step through at coroutine
implementation level.</dd>
<dt>trace</dt>
<dd>Set TRUE or provide a print function to print each R
expression evaluated in turn.</dd></dl>

Arguments

Toggle single-step debugging for a coroutine. — debugAsync

<dl>

<dt>x</dt>
<dd>A coroutine object as constructed by (async, gen or
stream).</dd>


<dt>R</dt>
<dd>Set TRUE to step through expressions at user level</dd>


<dt>internal</dt>
<dd>Set TRUE to step through at coroutine
implementation level.</dd>


<dt>trace</dt>
<dd>Set TRUE or provide a print function to print each R
expression evaluated in turn.</dd>

</dl>

debugAsync: Toggle single-step debugging for a coroutine.

Description

Usage

Value

Arguments