capture_parse_eval_side_effects {xpectr} | R Documentation |
Capture side effects from parse eval
Description
Wraps string in capture_side_effects()
before parsing and evaluating it.
The side effects (error
, warning
s, message
s) are returned in a list
.
When capturing an error
, no other side effects are captured.
Usage
capture_parse_eval_side_effects(
string,
envir = NULL,
copy_env = FALSE,
reset_seed = FALSE,
disable_crayon = TRUE
)
Arguments
string |
String of code that can be parsed and evaluated in |
envir |
Environment to evaluate in. Defaults to
|
copy_env |
Whether to use deep copies of the environment when capturing side effects. (Logical) Disabled by default to save memory but is often preferable to enable, e.g. when the function
alters non-local variables before throwing its |
reset_seed |
Whether to reset the random state on exit. (Logical) |
disable_crayon |
Whether to disable |
Value
named list
with the side effects.
Author(s)
Ludvig Renbo Olsen, r-pkgs@ludvigolsen.dk
See Also
Other capturers:
capture_side_effects()
Examples
# Attach package
library(xpectr)
capture_parse_eval_side_effects("stop('hi!')")
capture_parse_eval_side_effects("warning('hi!')")
capture_parse_eval_side_effects("message('hi!')")