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https://github.com/hanzoai/yaegi.git
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Marc VertesandGitHub
50190edc58
Status: * [x] parsing code with generics * [x] instantiate generics from concrete types * [x] automatic type inference * [x] support of generic recursive types * [x] support of generic methods * [x] support of generic receivers in methods * [x] support of multiple type parameters * [x] support of generic constraints * [x] tests (see _test/gen*.go) Fixes #1363.
20 lines
279 B
Go
20 lines
279 B
Go
package main
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func MapKeys[K comparable, V any](m map[K]V) []K {
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r := make([]K, 0, len(m))
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for k := range m {
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r = append(r, k)
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}
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return r
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}
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func main() {
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var m = map[int]string{1: "2", 2: "4", 4: "8"}
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// Test type inference
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println(len(MapKeys(m)))
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}
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// Output:
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// 3
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