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Extract OverlayWith() method #1598

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merged 2 commits into from
Jun 24, 2021
Merged

Extract OverlayWith() method #1598

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5ddcd2d
Extract OverlayWith() method
theunrepentantgeek Jun 23, 2021
9ea0add
Add tests for OverlayWith()
theunrepentantgeek Jun 24, 2021
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8 changes: 8 additions & 0 deletions hack/generator/pkg/astmodel/types.go
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,14 @@ func (types Types) Contains(name TypeName) bool {
return ok
}

// OverlayWith creates a new set containing all the type definitions from both this and the provided set. Any name
// collisions are resolved in favour of the provided set. Returns a new independent set, leaving the original unmodified.
func (types Types) OverlayWith(t Types) Types {
result := t.Copy()
result.AddTypes(types.Except(t))
return result
}

// TypesDisjointUnion merges this and other, with a safety check that no type is overwritten.
// If an attempt is made to overwrite a type, this function panics
func TypesDisjointUnion(s1 Types, s2 Types) Types {
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