mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 22:02:55 +01:00
Richard Smith
9007b3952d
Build constraint types from `where` expressions. This is very bare-bones; there's no support for constraining `.Self` or associated types yet, but degenerate cases not involving self-reference work. `==` constraints are syntactically supported but not semantically verified yet, and they aren't used for anything.
19 lines
782 B
Plaintext
19 lines
782 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 {}
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// CHECK: COMPILATION ERROR: {{.*}}/explorer/testdata/constraint/fail_where_is_non_constraint.carbon:[[@LINE+1]]: expression after `is` does not resolve to a constraint, found value i32 of type Type
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alias B = A where i32 is i32;
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fn Main() -> i32 { return 0; }
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