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#
# Copyright 2007-2019 by the individuals mentioned in the source code history
#
# 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.
matchStack <- function(syscall, function_name) {
return(identical(syscall[[1]], function_name))
}
##' imxLocateFunction
##'
##' This is an internal function exported for those people who know
##' what they are doing.
##'
##' @param function_name function_name
imxLocateFunction <- function(function_name) {
callstack <- sys.calls()
query <- sapply(callstack, matchStack, as.symbol(function_name))
matches <- which(query)
if (length(matches) == 0) {
#If the function being sought is not actually in the call stack...
return(function_name)
} else {
firstmatch <- matches[[1]]
return(callstack[[firstmatch]])
}
}
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