.findElementsInEnv | R Documentation |
sim$
Find all references to sim$
.parsingSim
will pull out the various ways to use sim, e.g.,
sim$xxx
, sim[["xxx"]]
, sim[[P(sim)$xxx]]
.findElementsInEnv( envToFindSim = parent.frame(), moduleEnv = parent.frame(), type ) .findElement(x, type) .parsingSim(x, type)
envToFindSim |
An environment where sim is defined. This is used when
the element accessing the simList is actually a call, e.g.,
|
moduleEnv |
The environment where the module functions are. |
type |
Either "get", "assign", or "globals". See details. |
x |
A call in which to search for sim |
.findElementsInEnv
is a wrapper around .findElements
. It will convert
function code to a call, and then pass it to .findElements
. It also does
some cleaning for duplications, NA
values, and cases where the element
inside a sim[["xxx"]]
is a variable that should be evaluated, rather than
simply taken verbatim (e.g., sim[[P(sim)$stackName]])
.
When type = "get"
, the function scans for sim$xxx
or sim[["xxx"]]]
on
the RHS of an assignment operator or when there is no assignment. When
type = "assign"
, the function scans for sim$xxx
or sim[["xxx"]]
on the
LHS of an assignment operator. When type = "globals"
, the function
scans for all functions (i.e., "globals") being used. This is similar to
codetools::findGlobals
, but faster.
.findElement
will omit whatever it finds inside a is.null
, when
type = "assign"
. Usually this is a test of existence of that object, in
order to assign to that object. It is only reading it to determine whether or
not it should write to it.
A character string with all sim objects found
Eliot McIntire
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