LogSink
Defines one concrete safe mutable diagnostic-record sink. A sink retains neither message view nor record input after Write returns. Implementations document allocation, blocking, synchronization and failures. No runtime dictionary or global logger is created by concept satisfaction.
Module std.logging
import std.logging;Public declaration contracts and authored examples. A page can document several related symbols. Implementation bodies are excluded.
LogSink
pub concept LogSink<Self>Defines one concrete safe mutable diagnostic-record sink. A sink retains neither message view nor record input after Write returns. Implementations document allocation, blocking, synchronization and failures. No runtime dictionary or global logger is created by concept satisfaction. Self: Concrete sink representation, owned by its caller or Logger.
LogSink.Write
requires fn Write(Level: LogLevel, Message: str) -> Result<void, IoError>;Submits one enabled diagnostic record. Level: Severity; ordinary callers never submit Off. Message: UTF-8 view borrowed only through return. Return: Complete submission or typed failure, including any partial prefix.
LogSink.Flush
requires fn Flush() -> Result<void, IoError>;Propagates previously accepted records through downstream layers. Return: Complete propagation or typed failure; no durability promise.