R/util.R

In utf8: Unicode Text Processing

#  Copyright 2017 Patrick O. Perry.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.


with_rethrow <- function(expr) {
  parentcall <- sys.call(-1)
  eval(
    envir = parent.frame(),
    withCallingHandlers(expr,
      error = function(e, call = parentcall) {
        e$call <- call
        stop(e)
      },
      warning = function(w, call = parentcall) {
        w$call <- call
        warning(w)
        invokeRestart("muffleWarning")
      },
      message = function(m, call = parentcall) {
        m$call <- call
      }
    )
  )
}