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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
8b59e85b16
For #6830, add support for inline C++ fragments as a declaration rather than as a packaging directive. For now, this uses `inline Cpp <string-literal>;` as syntax. The prior `import Cpp inline <string-literal>;` is left alone for the time being. We can decide separately whether to remove that. `inline Cpp` requires that there was at least one `import Cpp`. It's not clear to me if that's the right design long-term, but it seems reasonable for now. Assisted-by: Gemini via Google Antigravity
142 lines
3.8 KiB
Plaintext
142 lines
3.8 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/none.carbon
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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/inline_decl.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/inline_decl.carbon
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// --- inline_decl.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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inline Cpp '''
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void func1() {}
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''';
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fn Run1() {
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Cpp.func1();
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}
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inline Cpp '''
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void func2() {
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Carbon::Run1();
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}
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''';
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fn Run2() {
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Cpp.func2();
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}
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// --- fail_redefinition.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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inline Cpp '''
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void f() {}
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''';
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inline Cpp '''
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// CHECK:STDERR: fail_redefinition.carbon:[[@LINE+7]]:6: error: redefinition of 'f' [CppInteropParseError]
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// CHECK:STDERR: 18 | void f() {}
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// CHECK:STDERR: | ^
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// CHECK:STDERR: fail_redefinition.carbon:[[@LINE-7]]:6: note: previous definition is here [CppInteropParseNote]
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// CHECK:STDERR: 7 | void f() {}
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// CHECK:STDERR: | ^
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// CHECK:STDERR:
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void f() {}
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''';
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// --- fail_diag_location.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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// CHECK:STDERR: fail_diag_location.carbon:[[@LINE+4]]:12: error: use of undeclared identifier 'undeclared' [CppInteropParseError]
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// CHECK:STDERR: 10 | void f() { undeclared = 0; }
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// CHECK:STDERR: | ^~~~~~~~~~
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// CHECK:STDERR:
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inline Cpp "void f() { undeclared = 0; }";
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inline Cpp '''
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void g() {
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// CHECK:STDERR: fail_diag_location.carbon:[[@LINE+4]]:3: error: use of undeclared identifier 'undeclared' [CppInteropParseError]
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// CHECK:STDERR: 18 | undeclared = 0;
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// CHECK:STDERR: | ^~~~~~~~~~
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// CHECK:STDERR:
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undeclared = 0;
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}
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''';
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// --- fail_inline_no_import.carbon
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library "[[@TEST_NAME]]";
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// CHECK:STDERR: fail_inline_no_import.carbon:[[@LINE+4]]:8: error: name `Cpp` not found [NameNotFound]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~
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// CHECK:STDERR:
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inline Cpp "";
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// --- fail_nested.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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class C {
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// CHECK:STDERR: fail_nested.carbon:[[@LINE+4]]:3: error: `inline Cpp` declaration not at file scope [InlineDeclNotAtFileScope]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~~~~~~~~~
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// CHECK:STDERR:
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inline Cpp "";
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}
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interface I {
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// CHECK:STDERR: fail_nested.carbon:[[@LINE+4]]:3: error: `inline Cpp` declaration not at file scope [InlineDeclNotAtFileScope]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~~~~~~~~~
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// CHECK:STDERR:
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inline Cpp "";
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}
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constraint N {
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// CHECK:STDERR: fail_nested.carbon:[[@LINE+4]]:3: error: `inline Cpp` declaration not at file scope [InlineDeclNotAtFileScope]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~~~~~~~~~
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// CHECK:STDERR:
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inline Cpp "";
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}
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impl C as I {
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// CHECK:STDERR: fail_nested.carbon:[[@LINE+4]]:3: error: `inline Cpp` declaration not at file scope [InlineDeclNotAtFileScope]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~~~~~~~~~
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// CHECK:STDERR:
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inline Cpp "";
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}
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// --- fail_nested_fn.carbon
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fn F() {
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// TODO: Should this be a check error rather than a parse error?
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// CHECK:STDERR: fail_nested_fn.carbon:[[@LINE+8]]:3: error: expected expression [ExpectedExpr]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_nested_fn.carbon:[[@LINE+4]]:3: error: semantics TODO: `handle invalid parse trees in `check`` [SemanticsTodo]
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// CHECK:STDERR: inline Cpp "";
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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inline Cpp "";
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}
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