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carbon-lang/toolchain/check/testdata/class/fail_import_misuses.carbon
T
Geoff RomerandRichard Smith a112cbde5c Model type expressions as regions (#4698)
This is a precondition for enabling the new pattern-matching subsystem
to support binding patterns that have `if` expressions in the type
position.

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-12-19 21:41:06 +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
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/fail_import_misuses.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_import_misuses.carbon
// --- a.carbon
library "[[@TEST_NAME]]";
class Empty {
}
class Incomplete;
// --- fail_b.carbon
library "[[@TEST_NAME]]";
import library "a";
// CHECK:STDERR: fail_b.carbon:[[@LINE+8]]:1: error: redeclaration of `class Empty` is redundant [RedeclRedundant]
// CHECK:STDERR: class Empty {
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR: fail_b.carbon:[[@LINE-5]]:1: in import [InImport]
// CHECK:STDERR: a.carbon:4:1: note: previously declared here [RedeclPrevDecl]
// CHECK:STDERR: class Empty {
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
class Empty {
}
// CHECK:STDERR: fail_b.carbon:[[@LINE+7]]:8: error: variable has incomplete type `Incomplete` [IncompleteTypeInVarDecl]
// CHECK:STDERR: var a: Incomplete;
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR: fail_b.carbon:[[@LINE-16]]:1: in import [InImport]
// CHECK:STDERR: a.carbon:7:1: note: class was forward declared here [ClassForwardDeclaredHere]
// CHECK:STDERR: class Incomplete;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
var a: Incomplete;
// CHECK:STDOUT: --- a.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Empty: type = class_type @Empty [template]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [template]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template]
// CHECK:STDOUT: %Incomplete: type = class_type @Incomplete [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Empty = %Empty.decl
// CHECK:STDOUT: .Incomplete = %Incomplete.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Empty.decl: type = class_decl @Empty [template = constants.%Empty] {} {}
// CHECK:STDOUT: %Incomplete.decl: type = class_decl @Incomplete [template = constants.%Incomplete] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Empty {
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Empty
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Incomplete;
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_b.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Empty: type = class_type @Empty [template]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [template]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template]
// CHECK:STDOUT: %.1: type = class_type @.1 [template]
// CHECK:STDOUT: %Incomplete: type = class_type @Incomplete [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %import_ref.1: type = import_ref Main//a, Empty, loaded [template = constants.%Empty]
// CHECK:STDOUT: %import_ref.2: type = import_ref Main//a, Incomplete, loaded [template = constants.%Incomplete]
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref.3: <witness> = import_ref Main//a, loc5_1, loaded [template = constants.%complete_type]
// CHECK:STDOUT: %import_ref.4 = import_ref Main//a, inst16 [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Empty = imports.%import_ref.1
// CHECK:STDOUT: .Incomplete = imports.%import_ref.2
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .a = %a
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %default.import = import <invalid>
// CHECK:STDOUT: %.decl: type = class_decl @.1 [template = constants.%.1] {} {}
// CHECK:STDOUT: %a.var: ref <error> = var a
// CHECK:STDOUT: %a: ref <error> = bind_name a, %a.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Empty [from "a.carbon"] {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%import_ref.4
// CHECK:STDOUT: complete_type_witness = imports.%import_ref.3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @.1 {
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%.1
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Incomplete [from "a.carbon"];
// CHECK:STDOUT: