R Under development (unstable) (2023-09-11 r85126 ucrt) -- "Unsuffered Consequences"
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Platform: x86_64-w64-mingw32/x64

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> local({
+ 
+ 
+     FILE.R <- tempfile(fileext = ".R")
+     on.exit(unlink(FILE.R))
+     writeLines("test.this.path <- function ()
+ {
+     try(print({ this.path::sys.path(verbose = TRUE) }))
+     try(print({ this.path::env.path(verbose = TRUE) }))
+     try(print({ this.path::src.path(verbose = TRUE) }))
+     try(print({ this.path::this.path(verbose = TRUE) }))
+ }
+ 
+ 
+ test.this.path()", FILE.R)
+ 
+ 
+     sourcelike <- function(file) {
+         ofile <- file
+         file <- this.path::set.sys.path(file, Function = "sourcelike")
+         lines <- readLines(file, warn = FALSE)
+         filename <- this.path::sys.path(local = TRUE, for.msg = TRUE)
+         isFile <- !is.na(filename)
+         if (isFile) {
+             timestamp <- file.info(filename)$mtime[1]
+             if (is.na(timestamp))
+                 timestamp <- Sys.time()
+         }
+         else {
+             filename <- if (is.character(ofile)) ofile else "<connection>"
+             timestamp <- Sys.time()
+         }
+         srcfile <- srcfilecopy(filename, lines, timestamp, isFile)
+         this.path::set.src.path(srcfile)
+         envir <- new.env(hash = TRUE, parent = .BaseNamespaceEnv)
+         envir$.packageName <- filename
+         oopt <- options(topLevelEnvironment = envir)
+         on.exit(options(oopt))
+         this.path::set.env.path(envir)
+         exprs <- parse(text = lines, srcfile = srcfile)
+         this.path::source.exprs(exprs, evaluated = TRUE, envir)
+         `.this.path::document.context`
+     }
+ 
+ 
+     this.path::source.exprs({
+ 
+ 
+ x <- sourcelike(this.path::relpath(FILE.R))
+ print(x, quote = FALSE)
+ 
+ 
+ y <- local({
+     FILE.zip <- tempfile(fileext = ".zip")
+     on.exit(unlink(FILE.zip))
+     local({
+         owd <- getwd()
+         on.exit(setwd(owd))
+         setwd(this.path::dirname2(FILE.R))
+         if (!utils::zip(FILE.zip, this.path::basename2(FILE.R))) {
+             local({
+                 conn <- unz(this.path::relpath(FILE.zip), this.path::basename2(FILE.R))
+                 on.exit(close(conn))
+                 sourcelike(conn)
+             })
+         }
+     })
+ })
+ print(y, quote = FALSE)
+ 
+ 
+     })
+ 
+ 
+ })
> test.this.path <- function ()
+ {
+     try(print({ this.path::sys.path(verbose = TRUE) }))
+     try(print({ this.path::env.path(verbose = TRUE) }))
+     try(print({ this.path::src.path(verbose = TRUE) }))
+     try(print({ this.path::this.path(verbose = TRUE) }))
+ }
> 
> 
> test.this.path()
Source: call to function 'sourcelike'
[1] "D:/temp/Rtmpk5lYBe/file246645e9a72e8.R"
Source: path of top level environment, copied from call to function 'sourcelike'
[1] "D:/temp/Rtmpk5lYBe/file246645e9a72e8.R"
Source: path of srcfile, copied from call to function 'sourcelike'
[1] "D:/temp/Rtmpk5lYBe/file246645e9a72e8.R"
Source: path of srcfile, copied from call to function 'sourcelike'
[1] "D:/temp/Rtmpk5lYBe/file246645e9a72e8.R"
<object of class "ThisPathDocumentContext", "environment" at 0x000001656bf51650>
ofile: ../../../../../temp/Rtmpk5lYBe/file246645e9a72e8.R
file: D:/temp/Rtmpk5lYBe/file246645e9a72e8.R
source: <CHARSXP: call to function 'sourcelike'>
set.sys.path.was.here: NULL
n: 11
  adding: file246645e9a72e8.R (deflated 64%)
> test.this.path <- function ()
+ {
+     try(print({ this.path::sys.path(verbose = TRUE) }))
+     try(print({ this.path::env.path(verbose = TRUE) }))
+     try(print({ this.path::src.path(verbose = TRUE) }))
+     try(print({ this.path::this.path(verbose = TRUE) }))
+ }
> 
> 
> test.this.path()
Error in this.path::sys.path(verbose = TRUE) : 
  'this.path' cannot be used within a zip file
Error in this.path::env.path(verbose = TRUE) : 
  'this.path' cannot be used within a zip file
Error in this.path::src.path(verbose = TRUE) : 
  'this.path' cannot be used within a zip file
Error in this.path::this.path(verbose = TRUE) : 
  'this.path' cannot be used within a zip file
<object of class "ThisPathDocumentContext", "environment" at 0x000001656aa4f998>
errcnd: <this.path::thisPathInZipFileError: 'this.path' cannot be used within a zip file>
for.msg: ./file246644d225776.zip:file246645e9a72e8.R
associated.with.file: TRUE
source: <CHARSXP: call to function 'sourcelike'>
set.sys.path.was.here: NULL
n: 29
> 
> proc.time()
   user  system elapsed 
   0.15    0.06    0.26