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https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Nicholas Bishop
f519cccaf2
Calls with template callee or args can now be deferred via an
InstAction. This allows code like this to check:
```carbon
import Cpp inline '''
template<typename T>
struct C {};
''';
fn F(generic T: type) {
let unused c: Cpp.C(T) = Cpp.C(T).C();
}
```
40 lines
1.3 KiB
Plaintext
40 lines
1.3 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/convert.carbon
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// EXTRA-ARGS: --clang-arg=--std=c++20
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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/template/generic_call.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/template/generic_call.carbon
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// --- header.h
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struct X {};
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template<typename T> struct S {};
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// --- fail_todo_generic_call.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "header.h";
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fn F[T: type](unused x: T) {
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var unused v: Cpp.S(T);
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}
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fn G() {
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// CHECK:STDERR: fail_todo_generic_call.carbon:[[@LINE+7]]:3: error: unable to monomorphize specific `F(Cpp.X)` [ResolvingSpecificHere]
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// CHECK:STDERR: F({} as Cpp.X);
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// CHECK:STDERR: ^
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// CHECK:STDERR: fail_todo_generic_call.carbon:[[@LINE-7]]:3: note: value of type `<bound method>` is not callable [CallToNonCallable]
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// CHECK:STDERR: var unused v: Cpp.S(T);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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F({} as Cpp.X);
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}
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