Function Simplify

bindings/declarations.go:65–80

Simplify removes duplicate type parameters

(p []*TypeParameter)

// Simplify removes duplicate type parameters
func Simplify(p []*TypeParameter) ([]*TypeParameter, error) {
	params := []*TypeParameter{}
	set := make(map[string]bool)
	for _, tp := range p {
		ref := tp.Name.Ref()
		if _, ok := set[ref]; !ok {
			params = append(params, tp)
			set[ref] = true

			if union, ok := tp.Type.(*UnionType); ok {
				simplifyUnionLiterals(union)
			}
		}
	}
	return params, nil
}

func simplifyUnionLiterals(union *UnionType) *UnionType {
	types := []ExpressionType{}