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carbon-lang/toolchain/parse/testdata/packages/import/cpp_inline.carbon
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Geoff Romer 6429c1655c Make the tree structure more explicit in parse dumps (#7591) 
It's hard to track 2-space indent levels across large vertical gaps, and
it can be hard to suppress the instinct to read the dump as if it were
preorder. This change introduces a new dump mode that addresses both
problems by using box-drawing characters to explicitly represent the
parent-child edges of the tree. This new mode is the default, but the
old behavior remains available with
`--parse-dump-format=yaml-postorder`.
2026-07-31 16:44:18 +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/parse/testdata/packages/import/cpp_inline.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/parse/testdata/packages/import/cpp_inline.carbon
// --- fail_bad_syntax.carbon
// CHECK:STDERR: fail_bad_syntax.carbon:[[@LINE+4]]:18: error: expected string literal after `inline` [ExpectedStringAfterInline]
// CHECK:STDERR: import Cpp inline;
// CHECK:STDERR: ^
// CHECK:STDERR:
import Cpp inline;
// CHECK:STDERR: fail_bad_syntax.carbon:[[@LINE+4]]:19: error: expected string literal after `inline` [ExpectedStringAfterInline]
// CHECK:STDERR: import Cpp inline library "foo.h";
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
import Cpp inline library "foo.h";
// TODO: We might want to allow this as a "preprocessed source" syntax.
// CHECK:STDERR: fail_bad_syntax.carbon:[[@LINE+4]]:28: error: `import` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR: import Cpp library "foo.h" inline "bar";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
import Cpp library "foo.h" inline "bar";
// CHECK:STDERR: fail_bad_syntax.carbon:[[@LINE+4]]:24: error: `import` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR: import library "foo.h" inline "bar";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
import library "foo.h" inline "bar";
// --- fail_no_semi_at_eof.carbon
import Cpp inline
// CHECK:STDERR: fail_no_semi_at_eof.carbon:[[@LINE+4]]:1: error: expected string literal after `inline` [ExpectedStringAfterInline]
// CHECK:STDERR:
// CHECK:STDERR: ^
// CHECK:STDERR:
// --- fail_package_inline.carbon
// CHECK:STDERR: fail_package_inline.carbon:[[@LINE+4]]:16: error: `package` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR: package NotCpp inline "int n;";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
package NotCpp inline "int n;";
// --- fail_library_inline.carbon
// CHECK:STDERR: fail_library_inline.carbon:[[@LINE+4]]:17: error: `library` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR: library "foo.h" inline "int n;";
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
library "foo.h" inline "int n;";
// --- wrong_package.carbon
// We reject this in check.
import NotCpp inline "bar";
// --- valid_syntax.carbon
import Cpp inline "int m;";
import Cpp inline '''
// C++ comment.
int n;
''';
// --- inline_cpp.carbon
inline Cpp '''
int n;
''';
// --- fail_inline_cpp_syntax_errors.carbon
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:7: error: expected `Cpp` after `inline` [ExpectedCppAfterInline]
// CHECK:STDERR: inline;
// CHECK:STDERR: ^
// CHECK:STDERR:
inline;
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:8: error: expected `Cpp` after `inline` [ExpectedCppAfterInline]
// CHECK:STDERR: inline '''
// CHECK:STDERR: ^~~
// CHECK:STDERR:
inline '''
int n;
''';
// Recovery skips to the `;` even when tokens follow the closing `'''` on its
// line, so the `;` ends the declaration rather than starting an empty one.
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:8: error: expected `Cpp` after `inline` [ExpectedCppAfterInline]
// CHECK:STDERR: inline '''
// CHECK:STDERR: ^~~
// CHECK:STDERR:
inline '''
int n;
''' + "more";
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:11: error: expected string literal after `inline Cpp` [ExpectedStringAfterInlineCpp]
// CHECK:STDERR: inline Cpp;
// CHECK:STDERR: ^
// CHECK:STDERR:
inline Cpp;
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:12: error: expected string literal after `inline Cpp` [ExpectedStringAfterInlineCpp]
// CHECK:STDERR: inline Cpp x;
// CHECK:STDERR: ^
// CHECK:STDERR:
inline Cpp x;
inline Cpp '''
int n;
'''
// CHECK:STDERR: fail_inline_cpp_syntax_errors.carbon:[[@LINE+4]]:1: error: `inline` declarations must end with a `;` [ExpectedDeclSemi]
// CHECK:STDERR:
// CHECK:STDERR: ^
// CHECK:STDERR:
// --- eof.carbon
// This split exists to avoid the "no `;` at EOF" diagnostic above pointing to
// the last CHECK:STDOUT line below.
// CHECK:STDOUT: - filename: fail_bad_syntax.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody ';' has_error
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl ';' has_error
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody 'library' has_error
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl ';' has_error
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─LibraryName '"foo.h"'
// CHECK:STDOUT: │ ├─LibrarySpecifier 'library'
// CHECK:STDOUT: ├─ImportDecl ';' has_error
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ │ ╭─LibraryName '"foo.h"'
// CHECK:STDOUT: │ ├─LibrarySpecifier 'library'
// CHECK:STDOUT: ├─ImportDecl ';' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_no_semi_at_eof.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody '' has_error
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl 'inline' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_package_inline.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─PackageIntroducer 'package'
// CHECK:STDOUT: │ ├─IdentifierPackageName 'NotCpp'
// CHECK:STDOUT: ├─PackageDecl ';' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_library_inline.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─LibraryIntroducer 'library'
// CHECK:STDOUT: │ ├─LibraryName '"foo.h"'
// CHECK:STDOUT: ├─LibraryDecl ';' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: wrong_package.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─IdentifierPackageName 'NotCpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody '"bar"'
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: valid_syntax.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody '"int m;"'
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl ';'
// CHECK:STDOUT: │ ╭─ImportIntroducer 'import'
// CHECK:STDOUT: │ ├─CppPackageName 'Cpp'
// CHECK:STDOUT: │ │ ╭─InlineImportBody ''''
// CHECK:STDOUT: // C++ comment.
// CHECK:STDOUT: int n;
// CHECK:STDOUT: ''''
// CHECK:STDOUT: │ ├─InlineImportSpecifier 'inline'
// CHECK:STDOUT: ├─ImportDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: inline_cpp.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: │ ├─CppNameExpr 'Cpp'
// CHECK:STDOUT: │ ├─InlineImportBody ''''
// CHECK:STDOUT: int n;
// CHECK:STDOUT: ''''
// CHECK:STDOUT: ├─InlineCppDecl ';'
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: fail_inline_cpp_syntax_errors.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: ├─InlineCppDecl ';' has_error
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: ├─InlineCppDecl ';' has_error
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: ├─InlineCppDecl ';' has_error
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: │ ├─CppNameExpr 'Cpp'
// CHECK:STDOUT: ├─InlineCppDecl ';' has_error
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: │ ├─CppNameExpr 'Cpp'
// CHECK:STDOUT: ├─InlineCppDecl ';' has_error
// CHECK:STDOUT: │ ╭─InlineIntroducer 'inline'
// CHECK:STDOUT: │ ├─CppNameExpr 'Cpp'
// CHECK:STDOUT: │ ├─InlineImportBody ''''
// CHECK:STDOUT: int n;
// CHECK:STDOUT: ''''
// CHECK:STDOUT: ├─InlineCppDecl ''''
// CHECK:STDOUT: int n;
// CHECK:STDOUT: '''' has_error
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
// CHECK:STDOUT: - filename: eof.carbon
// CHECK:STDOUT: ╭─FileStart ''
// CHECK:STDOUT: ├─FileEnd ''
// CHECK:STDOUT: (root)
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