Nothing
renv_binding_lock <- function(envir, symbol) {
.BaseNamespaceEnv$lockBinding(symbol, envir)
}
renv_binding_locked <- function(envir, symbol) {
.BaseNamespaceEnv$bindingIsLocked(symbol, envir)
}
renv_binding_unlock <- function(envir, symbol) {
.BaseNamespaceEnv$unlockBinding(symbol, envir)
}
renv_binding_replace <- function(envir, symbol, replacement) {
# get the original definition
original <- envir[[symbol]]
# if the binding is locked, temporarily unlock it
if (renv_binding_locked(envir, symbol)) {
defer(renv_binding_lock(envir, symbol))
renv_binding_unlock(envir, symbol)
}
# update the binding
assign(symbol, replacement, envir = envir)
# return old definition
original
}
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