Function std::panic::get_backtrace_style
source · [−]pub fn get_backtrace_style() -> Option<BacktraceStyle>Expand description
Checks whether the standard library’s panic hook will capture and print a backtrace.
This function will, if a backtrace style has not been set via
set_backtrace_style, read the environment variable RUST_BACKTRACE to
determine a default value for the backtrace formatting:
The first call to get_backtrace_style may read the RUST_BACKTRACE
environment variable if set_backtrace_style has not been called to
override the default value. After a call to set_backtrace_style or
get_backtrace_style, any changes to RUST_BACKTRACE will have no effect.
RUST_BACKTRACE is read according to these rules:
0forBacktraceStyle::OfffullforBacktraceStyle::Full1forBacktraceStyle::Short- Other values are currently
BacktraceStyle::Short, but this may change in the future
Returns None if backtraces aren’t currently supported.