42 lines
932 B
Go
42 lines
932 B
Go
package logger
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import "context"
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type loggerKey struct{}
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// FromContext returns logger from passed context
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func FromContext(ctx context.Context) (Logger, bool) {
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if ctx == nil {
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return nil, false
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}
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l, ok := ctx.Value(loggerKey{}).(Logger)
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return l, ok
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}
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// MustContext returns logger from passed context or DefaultLogger if empty
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func MustContext(ctx context.Context) Logger {
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l, ok := FromContext(ctx)
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if !ok {
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panic("missing logger")
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}
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return l
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}
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// NewContext stores logger into passed context
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func NewContext(ctx context.Context, l Logger) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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return context.WithValue(ctx, loggerKey{}, l)
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}
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// SetOption returns a function to setup a context with given value
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func SetOption(k, v interface{}) Option {
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return func(o *Options) {
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if o.Context == nil {
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o.Context = context.Background()
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}
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o.Context = context.WithValue(o.Context, k, v)
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}
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}
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