mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-04 22:02:52 +01:00
Richard Smith
1bb370420b
Add scaffolding for constraints in general, and support specifically constraints formed by applying a `&` operator. No support for constraints formed with `where` nor for named constraints at this point.
30 lines
995 B
Plaintext
30 lines
995 B
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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// RUN: %{not} %{explorer} %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes=false %s
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// RUN: %{not} %{explorer} --parser_debug --trace_file=- %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes %s
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// AUTOUPDATE: %{explorer} %s
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package ExplorerTest api;
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interface A { fn F() -> i32; }
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interface B { fn G() -> i32; }
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// CHECK: COMPILATION ERROR: {{.*}}/explorer/testdata/constraint/missing_member.carbon:[[@LINE+1]]: member access, H not in constraint interface A & interface B where .Self:! Type is interface A, .Self:! Type is interface B
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fn Get[T:! A & B](n: T) -> i32 { return n.H(); }
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impl i32 as A {
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fn F() -> i32 { return 1; }
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}
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impl i32 as B {
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fn G() -> i32 { return 2; }
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}
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fn Main() -> i32 {
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var z: i32 = 0;
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return Get(z);
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}
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