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Add some comments to pkg/loggerctx
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This commit is contained in:
Elara 2023-10-06 14:23:29 -07:00
parent d86776feb1
commit 177960431c
1 changed files with 4 additions and 0 deletions
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4
pkg/loggerctx/log.go
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@ -6,12 +6,16 @@ import (
"go.elara.ws/logger" "go.elara.ws/logger"
) )
// loggerCtxKey is used as the context key for loggers
type loggerCtxKey struct{} type loggerCtxKey struct{}
// With returns a copy of ctx containing log
func With(ctx context.Context, log logger.Logger) context.Context { func With(ctx context.Context, log logger.Logger) context.Context {
return context.WithValue(ctx, loggerCtxKey{}, log) return context.WithValue(ctx, loggerCtxKey{}, log)
} }
// From attempts to get a logger from ctx. If ctx doesn't
// contain a logger, it returns a nop logger.
func From(ctx context.Context) logger.Logger { func From(ctx context.Context) logger.Logger {
if val := ctx.Value(loggerCtxKey{}); val != nil { if val := ctx.Value(loggerCtxKey{}); val != nil {
if log, ok := val.(logger.Logger); ok && log != nil { if log, ok := val.(logger.Logger); ok && log != nil {