Nothing
library("listenv")
ovars <- ls(envir = globalenv())
oopts <- options(warn = 1)
## - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
## Single-element assignments and subsetting
## - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
x <- list(a = 1, b = 2, c = 3)
str(x)
y <- as.listenv(x)
print(y)
stopifnot(identical(as.list(y), x))
z <- as.listenv(y)
stopifnot(identical(as.list(y), as.list(z)))
e <- new.env()
e$a <- 1
e$b <- 2
e$c <- 3
y <- as.listenv(e)
print(y)
stopifnot(identical(as.list(y), as.list(e)))
x <- c(a = 1, b = 2, c = 3)
y <- as.listenv(x)
print(y)
stopifnot(identical(as.list(y), as.list(x)))
## Cleanup
options(oopts)
rm(list = setdiff(ls(envir = globalenv()), ovars), envir = globalenv())
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