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future (version 1.34.0)

find_references: Get the first or all references of an R object

Description

Get the first or all references of an R object

Assert that there are no references among the identified globals

Usage

find_references(x, first_only = FALSE)

assert_no_references( x, action = c("error", "warning", "message", "string"), source = c("globals", "value") )

Value

find_references() returns a list of zero or more references identified.

If a reference is detected, an informative error, warning, message, or a character string is produced, otherwise NULL is returned invisibly.

Arguments

x

The R object to be checked.

first_only

If TRUE, only the first reference is returned, otherwise all references.

action

Type of action to take if a reference is found.

source

Is the source of x the globals or the value of the future?