o"># [&lt;R call 3&gt;: (function (what, args, quote = FALSE, envir = parent.frame()) ] </span>
<span class="co"># [&lt;R call 4&gt;: evalq((function (what, args, quote = FALSE, envir = parent.frame()) ] </span>
<span class="co"># [&lt;R call 5&gt;: evalq((function (what, args, quote = FALSE, envir = parent.frame()) ] </span>
<span class="co"># [&lt;R call 6&gt;: doTryCatch(return(expr), name, parentenv, handler)] </span>
<span class="co"># [&lt;R call 7&gt;: tryCatchOne(expr, names, parentenv, handlers[[1L