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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
eac7c2bda4
This was an offshoot of the discussion about how much boilerplate we could remove. lit requires RUN lines be there, everything else is optional.
43 lines
1.1 KiB
Plaintext
43 lines
1.1 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// RUN: %{not} %{explorer-run}
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// RUN: %{not} %{explorer-run-trace}
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package ExplorerTest api;
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interface Vector {
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fn Add[me: Self](b: Self) -> Self;
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fn Scale[me: Self](v: i32) -> Self;
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}
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class Point {
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var x: i32;
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var y: i32;
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}
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// CHECK:STDERR: COMPILATION ERROR: {{.*}}/explorer/testdata/interface/fail_external_impl_self.carbon:[[@LINE+1]]: could not resolve 'Self'
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external impl Self as Vector {
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fn Add[me: Point](b: Point) -> Point {
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return {.x = me.x + b.x, .y = me.y + b.y};
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}
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fn Scale[me: Point](v: i32) -> Point {
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return {.x = me.x * v, .y = me.y * v};
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}
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}
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fn AddAndScaleGeneric[T:! Vector](a: T, b: T, s: i32) -> T {
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var m: auto = a.Add;
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var n: auto = m(b).Scale;
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return n(s);
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}
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fn Main() -> i32 {
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var a: Point = {.x = 1, .y = 4};
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var b: Point = {.x = 2, .y = 3};
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var p: Point = AddAndScaleGeneric(a, b, 5);
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return p.x - 15;
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}
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