Function collectMappingSources

internal/driver/fetch.go:363–388

collectMappingSources saves the mapping sources of a profile.

(p *profile.Profile, source string)

// collectMappingSources saves the mapping sources of a profile.
func collectMappingSources(p *profile.Profile, source string) plugin.MappingSources {
	ms := plugin.MappingSources{}
	for _, m := range p.Mapping {
		src := struct {
			Source string
			Start  uint64
		}{
			source, m.Start,
		}
		key := m.BuildID
		if key == "" {
			key = m.File
		}
		if key == "" {
			// If there is no build id or source file, use the source as the
			// mapping file. This will enable remote symbolization for this
			// mapping, in particular for Go profiles on the legacy format.
			// The source is reset back to empty string by unsourceMapping
			// which is called after symbolization is finished.
			m.File = source
			key = source
		}
		ms[key] = append(ms[key], src)
	}
	return ms
}

// unsourceMappings iterates over the mappings in a profile and replaces file
// set to the remote source URL by collectMappingSources back to empty string.