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Use sentinel function for active bindings #130

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hadley opened this issue Aug 30, 2017 · 1 comment

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feature

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hadley commented Aug 30, 2017

public = list(
  blah = active_binding(function(value) {
    
  })
)

And eventually deprecate the active_bindings argument

The text was updated successfully, but these errors were encountered:

hadley added the feature label

idavydov commented Jul 7, 2020

Maybe active_binding could have a read_only flag?

public = list(
  blah = active_binding(function() {
    
  }, read_only=TRUE)
)

And then there could be nice error-handling by default (similar to the goal of #100 and #99).

x$blah <- 0
# Error: blah is read-only

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