Provides debug log which can be written to, but does not affect the host state.
The result of writing to the debug log is implementation specific - it may, for
example, be written to a log file, or to stdout etc.
The debug_msg macro supports inline formatting:
extern crate alloc;
use tezos_smart_rollup_debug::debug_msg;
use tezos_smart_rollup_host::runtime::Runtime;
fn log_runtime(host: &impl Runtime) {
debug_msg!(host, "Simple constant string");
debug_msg!(host, "A format {} with argument {}", "test", 5);
}
In the simplest case, however, one can also write:
use tezos_smart_rollup_host::runtime::Runtime;
fn log_simple(host: &impl Runtime) {
host.write_debug("A simple constant string");
}