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These functions throw custom targets-specific error conditions. Useful for error handling in packages built on top of targets.

Usage

tar_message_run(...)

tar_throw_file(...)

tar_throw_run(...)

tar_throw_validate(...)

tar_warn_deprecate(...)

tar_warn_run(...)

tar_warn_validate(...)

tar_error(message, class)

tar_warning(message, class)

tar_message(message, class)

Arguments

...

zero or more objects which can be coerced to character (and which are pasted together with no separator) or a single condition object.

message

Character of length 1, text of the message.

class

Character vector of S3 classes of the message.

See also

Other utilities to extend targets: tar_assert, tar_dir(), tar_language, tar_test()

Examples

try(tar_throw_validate("something is not valid"))
#> Error : something is not valid