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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
2fd7e2b65d
Add support for user-defined assignment, as well as compound assignment and increment, following the design direction in pending proposal #2511. Some of this isn't fully testable yet: because explorer doesn't properly support `impl` specialization, the blanket `impl`s in the prelude prevent types from customizing assignment.
28 lines
625 B
Plaintext
28 lines
625 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: Before: 1
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// CHECK:STDOUT: Interface: 2
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// CHECK:STDOUT: Op: 3
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// CHECK:STDOUT: result: 0
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package ExplorerTest api;
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class C {
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var n: i32;
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}
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fn Main() -> i32 {
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var c: C = {.n = 1};
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Print("Before: {0}", c.n);
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c.(AssignWith({.n: i32}).Op)({.n = 2});
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Print("Interface: {0}", c.n);
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c = {.n = 3};
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Print("Op: {0}", c.n);
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return 0;
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}
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