write_sigs

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Write sigs to file

Writes a list of function signatures to a file.

Usage
write_sigs(x, file = stdout(), ...)
"write_sigs"(x, file = stdout(), ...)
"write_sigs"(x, file = stdout(), ...)
"write_sigs"(x, file = stdout(), ...)
"write_sigs"(x, file = stdout(), ...)
Arguments
x
A list of function signatures. See details.
file
A file path or connection to write the output to (stdout by default).
...
passed to toString.siglist.
Details

Where x is an object of class |codesiglist, the function essentially calls writeLines(tostring(x)). If the input is a single function signature (of class sig), then it is coerced into a siglist. If the input is an environment or path to a file, then list_sigs is called on the input before writing.

Value

A character vector of the lines that were written to file is invisibly returned. Mostly invoked for the side effect of writing function signatures to a file.

Aliases
  • write_sigs
  • write_sigs.character
  • write_sigs.default
  • write_sigs.environment
  • write_sigs.siglist
Examples
#Step by step:
#First, list some sigs.
utils_sigs <- list_sigs(pkg2env(utils))
#Without a file argument, sigs are just printed to the console.
head(write_sigs(utils_sigs))
#Write to a file
tmpf <- tempfile("sig", fileext = ".R")
write_sigs(utils_sigs, tmpf)
## Not run: 
# Open the file we've just written
# shell(tmpf, wait = FALSE)
# ## End(Not run)
#Can also list and write in one line.
tmpf2 <- tempfile("sig", fileext = ".R")
write_sigs(pkg2env(grDevices), tmpf2)
#Single sigs are coerced to siglists
write_sigs(sig(stats::var))
Documentation reproduced from package sig, version 0.0-5, License: Unlimited

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