34 lines
808 B
Go
34 lines
808 B
Go
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package log
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import (
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"runtime"
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"github.com/anacrolix/missinggo/iter"
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)
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// The minimal interface required for the Msg helper/wrapper to operate on.
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type MsgImpl interface {
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// Returns the message text. Allows for lazy evaluation/prefixing etc.
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Text() string
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// Sets the program counters in pc. Having it in the interface may allow us to cache/freeze them
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// for serialization etc.
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Callers(skip int, pc []uintptr) int
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// Iterates over the values as added LIFO.
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Values(callback iter.Callback)
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}
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// maybe implement finalizer to ensure msgs are sunk
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type rootMsgImpl struct {
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text func() string
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}
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func (m rootMsgImpl) Text() string {
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return m.text()
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}
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func (m rootMsgImpl) Callers(skip int, pc []uintptr) int {
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return runtime.Callers(skip+2, pc)
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}
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func (m rootMsgImpl) Values(iter.Callback) {}
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