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carbon-lang/explorer/testdata/interface/extend.carbon
T
2023-06-15 08:42:14 -07:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// CHECK:STDOUT: Carrot.G
// CHECK:STDOUT: result: 5
package ExplorerTest api;
interface Apple(T:! type) {
fn F[self: Self]() -> T;
}
interface Banana {
extend Apple(i32);
fn G[self: Self]();
}
class Carrot {
var n: i32;
}
// This impl also provides an `impl Carrot as Apple(i32)`.
impl Carrot as Banana {
fn F[self: Self]() -> i32 { return self.n; }
fn G[self: Self]() { Print("Carrot.G"); }
}
fn Main() -> i32 {
var c: Carrot = {.n = 5};
c.(Banana.G)();
return c.(Apple(i32).F)();
}