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carbon-lang/toolchain/check/testdata/interop/cpp/no_prelude/cpp_namespace.carbon
T
Boaz Brickner 6a99c4e970 When diagnosing a duplicated name, add the name to the diagnosis (#4902)
In order to have the name available for diagnostics, we now always set
`NameId` in `NameContext` and put `poisoning_loc_id` as part of the
union with `resolved_inst_id` instead (since we never need both).
2025-02-19 07:19:23 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/no_prelude/cpp_namespace.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/no_prelude/cpp_namespace.carbon
// --- header.h
// --- fail_duplicate_cpp_name.carbon
library "[[@TEST_NAME]]";
import Cpp library "header.h";
// CHECK:STDERR: fail_duplicate_cpp_name.carbon:[[@LINE+7]]:11: error: duplicate name `Cpp` being declared in the same scope [NameDeclDuplicate]
// CHECK:STDERR: namespace Cpp;
// CHECK:STDERR: ^~~
// CHECK:STDERR: fail_duplicate_cpp_name.carbon:[[@LINE-5]]:1: note: name is previously declared here [NameDeclPrevious]
// CHECK:STDERR: import Cpp library "header.h";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
namespace Cpp;
// --- cpp_in_inner_namespace.carbon
library "[[@TEST_NAME]]";
import Cpp library "header.h";
namespace N;
namespace N.Cpp;
// --- alias.carbon
library "[[@TEST_NAME]]";
import Cpp library "header.h";
alias MyCpp = Cpp;
// --- fail_add_name_to_cpp_namespace.carbon
library "[[@TEST_NAME]]";
import Cpp library "header.h";
// CHECK:STDERR: fail_add_name_to_cpp_namespace.carbon:[[@LINE+7]]:7: error: imported packages cannot be used for declarations [QualifiedDeclOutsidePackage]
// CHECK:STDERR: class Cpp.C {};
// CHECK:STDERR: ^~~
// CHECK:STDERR: fail_add_name_to_cpp_namespace.carbon:[[@LINE-5]]:1: note: package imported here [QualifiedDeclOutsidePackageSource]
// CHECK:STDERR: import Cpp library "header.h";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
class Cpp.C {};
// --- api_and_impl.carbon
library "[[@TEST_NAME]]";
import Cpp library "header.h";
// --- api_and_impl.impl.carbon
impl library "[[@TEST_NAME]]";
import Cpp library "header.h";
// CHECK:STDOUT: --- fail_duplicate_cpp_name.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.import_cpp = import_cpp {
// CHECK:STDOUT: import Cpp "header.h"
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp: <namespace> = namespace [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- cpp_in_inner_namespace.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: .N = %N
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.import_cpp = import_cpp {
// CHECK:STDOUT: import Cpp "header.h"
// CHECK:STDOUT: }
// CHECK:STDOUT: %N: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = %Cpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp: <namespace> = namespace [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- alias.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: .MyCpp = %MyCpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.import_cpp = import_cpp {
// CHECK:STDOUT: import Cpp "header.h"
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.ref: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: %MyCpp: <namespace> = bind_alias MyCpp, imports.%Cpp [concrete = imports.%Cpp]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_add_name_to_cpp_namespace.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
// CHECK:STDOUT: .C = file.%C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.import_cpp = import_cpp {
// CHECK:STDOUT: import Cpp "header.h"
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- api_and_impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %Cpp.import_cpp = import_cpp {
// CHECK:STDOUT: import Cpp "header.h"
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- api_and_impl.impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.Cpp: <namespace> = import_ref Main//api_and_impl, Cpp, loaded
// CHECK:STDOUT: %Cpp: <namespace> = namespace %Main.Cpp, [concrete] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Cpp = imports.%Cpp
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import.loc2_6.1 = import <none>
// CHECK:STDOUT: %default.import.loc2_6.2 = import <none>
// CHECK:STDOUT: }
// CHECK:STDOUT: