74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
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package merr
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import (
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"fmt"
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"path/filepath"
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)
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// not really used for attributes, but w/e
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const attrKeyErr attrKey = "err"
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const attrKeyErrSrc attrKey = "errSrc"
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// KVer implements the mlog.KVer interface. This is defined here to avoid this
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// package needing to actually import mlog.
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type KVer struct {
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kv map[string]interface{}
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}
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// KV implements the mlog.KVer interface.
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func (kv KVer) KV() map[string]interface{} {
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return kv.kv
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}
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// KV returns a KVer which contains all visible values embedded in the error, as
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// well as the original error string itself. Keys will be turned into strings
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// using the fmt.Sprint function.
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//
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// If any keys conflict then their type information will be included as part of
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// the key.
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func KV(e error) KVer {
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er := wrap(e, false, 1)
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kvm := make(map[string]interface{}, len(er.attr)+1)
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keys := map[string]interface{}{} // in this case the value is the raw key
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setKey := func(k, v interface{}) {
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kStr := fmt.Sprint(k)
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oldKey := keys[kStr]
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if oldKey == nil {
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keys[kStr] = k
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kvm[kStr] = v
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return
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}
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// check if oldKey is in kvm, if so it needs to be moved to account for
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// its type info
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if oldV, ok := kvm[kStr]; ok {
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delete(kvm, kStr)
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kvm[fmt.Sprintf("%T(%s)", oldKey, kStr)] = oldV
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}
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kvm[fmt.Sprintf("%T(%s)", k, kStr)] = v
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}
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setKey(attrKeyErr, er.err.Error())
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for k, v := range er.attr {
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if !v.visible {
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continue
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}
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stack, ok := v.val.(Stack)
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if !ok {
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setKey(k, v.val)
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continue
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}
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// compress the stack trace to just be the top-most frame
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frame := stack.Frame()
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file, dir := filepath.Base(frame.File), filepath.Dir(frame.File)
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dir = filepath.Base(dir) // only want the first dirname, ie the pkg name
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setKey(attrKeyErrSrc, fmt.Sprintf("%s/%s:%d", dir, file, frame.Line))
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}
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return KVer{kvm}
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}
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