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This PR is making two main changes to the Explorer and Toolchain: - Replace the `is` keyword in `where SomeType is SomeInterface` with `impls`, so it is `where SomeType impls SomeInterface` - Rewrite uses of the "impls" to something else to avoid, frequently "`impl` declarations" or "implementations", to avoid confusion with the `impls` keyword. --------- Co-authored-by: Geoff Romer <gromer@google.com>
33 lines
825 B
Plaintext
33 lines
825 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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// AUTOUPDATE
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// RUN: %{explorer-run}
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// RUN: %{explorer-run-trace}
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// CHECK:STDOUT: result: 12
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package ExplorerTest api;
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interface SwizzleWith(T:! type) {
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fn Op[self: Self](x: T) -> i32;
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}
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// TODO: There should be some way to write this that includes
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// `SwizzleWith(.Self)` in the list of lookup contexts.
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alias Swizzle = type where .Self impls SwizzleWith(.Self);
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impl i32 as SwizzleWith(i32) {
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fn Op[self: Self](x: Self) -> Self { return self * 10 + x; }
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}
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fn F[T:! Swizzle](v: T, w: T) -> i32 {
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return v.(SwizzleWith(T).Op)(w);
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}
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fn Main() -> i32 {
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var one: i32 = 1;
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var two: i32 = 2;
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return F(one, two);
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}
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