23 lines
462 B
Go
23 lines
462 B
Go
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package gotypes
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import (
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"errors"
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"go/token"
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"go/types"
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)
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func ParseSignature(expr string) (*types.Signature, error) {
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tv, err := types.Eval(token.NewFileSet(), nil, token.NoPos, expr)
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if err != nil {
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return nil, err
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}
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if tv.Value != nil {
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return nil, errors.New("signature expression should have nil value")
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}
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s, ok := tv.Type.(*types.Signature)
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if !ok {
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return nil, errors.New("provided type is not a function signature")
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}
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return s, nil
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}
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