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f3a57db293
Many times now we've seen situations where we need to use addresses as map keys, but not all of our address types are comparable and thus we tend to end up using string representations as keys instead. That's problematic because conversion to string uses type information and some of the address types have string representations that are ambiguous with one another. UniqueKey therefore represents an opaque key that is unique for each functionally-distinct address across all types that implement UniqueKeyer. For this initial commit I've implemented UniqueKeyer only for the Referenceable family of types. These are an easy case because they were all already comparable (intentionally) anyway. Later commits can implement UniqueKeyer for other types that are not naturally comparable, such as any which include a ModuleInstance. This also includes a new type addrs.Set which wraps a map as a set of addresses, using the unique keys to ensure that there can be only one element for each distinct address.
19 lines
381 B
Go
19 lines
381 B
Go
package addrs
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// PathAttr is the address of an attribute of the "path" object in
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// the interpolation scope, like "path.module".
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type PathAttr struct {
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referenceable
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Name string
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}
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func (pa PathAttr) String() string {
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return "path." + pa.Name
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}
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func (pa PathAttr) UniqueKey() UniqueKey {
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return pa // A PathAttr is its own UniqueKey
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}
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func (pa PathAttr) uniqueKeySigil() {}
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