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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
e06eb8f532
Instead of injecting code to declare an `operator new`, generate AST for it directly. In order to use this, directly generate a `CXXNewExpr` rather than asking Clang to build one. This is less of a hack, and doesn't visibly leak an `operator new` declaration that inline C++ code or template instantiations might see. It also avoids generating a warning in C++26 and later that the `constexpr` declaration of `operator new` is used but not defined. Assisted-by: Gemini 3.1 Pro via Antigravity
29 lines
1001 B
Plaintext
29 lines
1001 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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// EXTRA-ARGS: --clang-arg=--std=c++26
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/function/thunk_cpp26.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/thunk_cpp26.carbon
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// --- thunk_required.h
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auto foo(short a) -> short;
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// --- import_thunk_required.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "thunk_required.h";
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fn F() {
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// Placement operator new is `constexpr` in C++26. But that shouldn't cause
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// problems for us because we declare our own operator new.
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Cpp.foo(1 as i16);
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}
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