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https://github.com/carbon-language/carbon-lang.git
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Richard SmithandJon Ross-Perkins
663ed32b1b
Basic support for declaring, specifying the values of, and using associated constants. This is incomplete in various ways. For example, when checking whether a type satisfies a constraint, there is no check that its associated constants match those in the constraint, and name lookup into a value whose type is an associated constant is not supported yet. Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
37 lines
1.1 KiB
Plaintext
37 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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// 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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let T:! Type;
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}
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fn F1[T:! A where .T == i32](x: T.T) -> i32 {
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// OK: one equality.
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return x;
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}
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fn F2[U:! A where .T == i32](x: i32) -> U.T {
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// OK: one equality.
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return x;
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}
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fn F3[T:! A where .T == i32, U:! A where .T == i32](x: T.T) -> U.T {
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// CHECK: COMPILATION ERROR: {{.*}}/explorer/testdata/assoc_const/fail_indirectly_equal.carbon:[[@LINE+1]]: type error in return value: '(T:! A where .Self.T == i32).T' is not implicitly convertible to '(U:! A where .Self.T == i32).T'
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return x;
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}
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external impl i32 as A where .T == i32 {}
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fn Main() -> i32 {
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return F3(0);
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}
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