pub trait GenerateImplicitData {
    fn generate() -> Self;

    fn generate_with_source(source: &dyn Error) -> Self
    where
        Self: Sized
, { ... } }
Expand description

Construct data to be included as part of an error. The data must require no arguments to be created.

Required Methods§

Build the data.

Provided Methods§

Build the data using the given source

Implementations on Foreign Types§

Only create a backtrace when an environment variable is set.

This looks first for the value of RUST_LIB_BACKTRACE then RUST_BACKTRACE. If the value is set to 1, backtraces will be enabled.

This value will be tested only once per program execution; changing the environment variable after it has been checked will have no effect.

Interaction with the Provider API

If you enable the unstable-provider-api feature flag, a backtrace will not be captured if the original error is able to provide a Backtrace, even if the appropriate environment variables are set. This prevents capturing a redundant backtrace.

Implementors§