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a16842ab377ef1cd1cbc9afb860963fc3126da00
carbon-lang/toolchain/parse/testdata/packages/export.carbon
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Jon Ross-Perkins a16842ab37 Add export keyword handling. (#3944) 
This provides `export import` logic in lex, parse, and check; `export
name` logic is only in lex and parse, not check.

I think with `export name` I'm going to need to modify import_ref and
some consolidation logic, whereas `export import` seems feasible to keep
as primarily import logic. Given the implementations were looking like
they'd diverge more substantially, I thought it'd be helpful to cut the
PR here.
2024-05-10 22:54:06 +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
// --- name.carbon
package Pkg api;
export Foo;
// --- qual_name.carbon
package Pkg api;
export Foo.Bar;
// --- fail_expr.carbon
package Pkg api;
// CHECK:STDERR: fail_expr.carbon:[[@LINE+4]]:8: ERROR: `export` introducer should be followed by a name.
// CHECK:STDERR: export ();
// CHECK:STDERR: ^
// CHECK:STDERR:
export ();
// --- fail_package_in_name.carbon
package Pkg api;
// CHECK:STDERR: fail_package_in_name.carbon:[[@LINE+4]]:8: ERROR: `export` introducer should be followed by a name.
// CHECK:STDERR: export package.Bar;
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
export package.Bar;
// --- fail_keyword_only
package Pkg api;
// CHECK:STDERR: fail_keyword_only:[[@LINE+4]]:1: ERROR: `export` introducer should be followed by a name.
// CHECK:STDERR: export
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
export
// --- fail_no_name.carbon
package Pkg api;
// CHECK:STDERR: fail_no_name.carbon:[[@LINE+4]]:8: ERROR: `export` introducer should be followed by a name.
// CHECK:STDERR: export ;
// CHECK:STDERR: ^
// CHECK:STDERR:
export ;
// --- fail_no_semi.carbon
package Pkg api;
export Foo
// CHECK:STDERR: fail_no_semi.carbon:[[@LINE+4]]:1: ERROR: `export` declarations must end with a `;`.
// CHECK:STDERR:
// CHECK:STDERR: ^
// CHECK:STDERR:
// --- fail_incomplete_qual_name.carbon
package Pkg api;
// CHECK:STDERR: fail_incomplete_qual_name.carbon:[[@LINE+4]]:12: ERROR: Expected identifier after `.`.
// CHECK:STDERR: export Foo.;
// CHECK:STDERR: ^
// CHECK:STDERR:
export Foo.;
// --- fail_incomplete_qual_name2.carbon
package Pkg api;
// CHECK:STDERR: fail_incomplete_qual_name2.carbon:[[@LINE+4]]:8: ERROR: `export` introducer should be followed by a name.
// CHECK:STDERR: export .Bar;
// CHECK:STDERR: ^
// CHECK:STDERR:
export .Bar;
// --- fail_after_decl.carbon
package Pkg api;
class C;
// CHECK:STDERR: fail_after_decl.carbon:[[@LINE+7]]:1: ERROR: `import` and `export` directives must come after the `package` directive (if present) and before any other entities in the file.
// CHECK:STDERR: export Foo;
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR: fail_after_decl.carbon:[[@LINE-5]]:1: First declaration is here.
// CHECK:STDERR: class C;
// CHECK:STDERR: ^~~~~
// CHECK:STDERR:
export Foo;
// --- fail_in_default_library.carbon
// CHECK:STDERR: fail_in_default_library.carbon:[[@LINE+4]]:1: ERROR: `export` is only allowed in API files.
// CHECK:STDERR: export Foo;
// CHECK:STDERR: ^~~~~~
// CHECK:STDERR:
export Foo;
// --- fail_in_impl.carbon
package Pkg impl;
// CHECK:STDERR: fail_in_impl.carbon:[[@LINE+3]]:1: ERROR: `export` is only allowed in API files.
// CHECK:STDERR: export Foo;
// CHECK:STDERR: ^~~~~~
export Foo;
// CHECK:STDOUT: - filename: name.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: qual_name.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Bar'},
// CHECK:STDOUT: {kind: 'QualifiedName', text: '.', subtree_size: 3},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', subtree_size: 5},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_expr.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'InvalidParse', text: '(', has_error: yes},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_package_in_name.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'InvalidParse', text: 'package', has_error: yes},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_keyword_only
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'InvalidParse', text: '', has_error: yes},
// CHECK:STDOUT: {kind: 'ExportDirective', text: 'export', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_no_name.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'InvalidParse', text: ';', has_error: yes},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_no_semi.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'ExportDirective', text: 'Foo', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_incomplete_qual_name.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: ';', has_error: yes},
// CHECK:STDOUT: {kind: 'QualifiedName', text: '.', subtree_size: 3},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', subtree_size: 5},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_incomplete_qual_name2.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export'},
// CHECK:STDOUT: {kind: 'InvalidParse', text: '.', has_error: yes},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_after_decl.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageApi', text: 'api'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ClassIntroducer', text: 'class'},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'C'},
// CHECK:STDOUT: {kind: 'ClassDecl', text: ';', subtree_size: 3},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export', has_error: yes},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_in_default_library.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export', has_error: yes},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
// CHECK:STDOUT: - filename: fail_in_impl.carbon
// CHECK:STDOUT: parse_tree: [
// CHECK:STDOUT: {kind: 'FileStart', text: ''},
// CHECK:STDOUT: {kind: 'PackageIntroducer', text: 'package'},
// CHECK:STDOUT: {kind: 'PackageName', text: 'Pkg'},
// CHECK:STDOUT: {kind: 'PackageImpl', text: 'impl'},
// CHECK:STDOUT: {kind: 'PackageDirective', text: ';', subtree_size: 4},
// CHECK:STDOUT: {kind: 'ExportIntroducer', text: 'export', has_error: yes},
// CHECK:STDOUT: {kind: 'IdentifierName', text: 'Foo'},
// CHECK:STDOUT: {kind: 'ExportDirective', text: ';', has_error: yes, subtree_size: 3},
// CHECK:STDOUT: {kind: 'FileEnd', text: ''},
// CHECK:STDOUT: ]
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