Method searchMapWithPathPrefixes

viper.go:582–610

searchMapWithPathPrefixes searches for a value for path in sourceMap This function is part of the searchIndexableWithPathPrefixes recurring search and should not be called directly from functions other than searchIndexableWithPathPrefixes.

(
	sourceMap map[string]any,
	prefixKey string,
	pathIndex int,
	path []string,
)

// This function is part of the searchIndexableWithPathPrefixes recurring search and
// should not be called directly from functions other than searchIndexableWithPathPrefixes.
func (v *Viper) searchMapWithPathPrefixes(
	sourceMap map[string]any,
	prefixKey string,
	pathIndex int,
	path []string,
) any {
	next, ok := sourceMap[prefixKey]
	if !ok {
		return nil
	}

	// Fast path
	if pathIndex == len(path) {
		return next
	}

	// Nested case
	switch n := next.(type) {
	case map[any]any:
		return v.searchIndexableWithPathPrefixes(cast.ToStringMap(n), path[pathIndex:])
	case map[string]any, []any:
		return v.searchIndexableWithPathPrefixes(n, path[pathIndex:])
	default:
		// got a value but nested key expected, do nothing and look for next prefix
	}

	// not found
	return nil
}

// isPathShadowedInDeepMap makes sure the given path is not shadowed somewhere
// on its path in the map.