mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-02 07:15:51 +01:00
Richard Smith
15ec5113aa
Add new prelude interfaces `Negate`, `AddWith`, `SubWith`, and `MulWith`, and use them to implement non-builtin arithmetic operations.
25 lines
726 B
Plaintext
25 lines
726 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: %{explorer} %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes=false %s
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// RUN: %{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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// CHECK: result: 4
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package ExplorerTest api;
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class A { var n: i32; }
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external impl A as SubWith(i32) where .Result == A {
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fn Op[me: Self](rhs: i32) -> A { return {.n = me.n - rhs}; }
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}
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fn Main() -> i32 {
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var a: A = {.n = 5};
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a = a - 1;
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return a.n;
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}
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