37 lines
924 B
Go
37 lines
924 B
Go
package iter
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import (
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"context"
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"fmt"
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"github.com/lestrrat-go/iter/mapiter"
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)
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// MapVisitor is a specialized visitor for our purposes.
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// Whereas mapiter.Visitor supports any type of key, this
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// visitor assumes the key is a string
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type MapVisitor interface {
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Visit(string, interface{}) error
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}
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type MapVisitorFunc func(string, interface{}) error
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func (fn MapVisitorFunc) Visit(s string, v interface{}) error {
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return fn(s, v)
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}
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func WalkMap(ctx context.Context, src mapiter.Source, visitor MapVisitor) error {
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return mapiter.Walk(ctx, src, mapiter.VisitorFunc(func(k, v interface{}) error {
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//nolint:forcetypeassert
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return visitor.Visit(k.(string), v)
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}))
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}
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func AsMap(ctx context.Context, src mapiter.Source) (map[string]interface{}, error) {
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var m map[string]interface{}
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if err := mapiter.AsMap(ctx, src, &m); err != nil {
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return nil, fmt.Errorf(`mapiter.AsMap failed: %w`, err)
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}
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return m, nil
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}
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