Files
carbon-lang/toolchain/check/testdata/function/declaration/extern_library.carbon
T
Geoff RomerandDana Jansens e67b6db910 Give files shorthand names in textual SemIR (#8104)
Shorthand names are intended to be used in the textual format of
references to instructions in another IR (which can't happen now, but
will be possible in a forthcoming PR). The shorthand name uses the file
name (minus the `.carbon` suffix) as a base, and if that base name is
ambiguous within the compilation, it is given a numerical suffix `.N`,
just like other textual IR names. Shorthand names are prefixed with `$`
in the textual format, to distinguish them from inst and scope names.

For example, a file `foo/bar.carbon` has the shorthand name `$bar`, and
an instruction `@baz.%qux` in that file can be referenced from another
file as `$bar.@baz.%qux`.

This PR adds `toolchain/check/testdata/basics/file_name.carbon` to test
this behavior. All other test changes are just applying this change to
the existing textual SemIR dumps.

---------

Co-authored-by: Dana Jansens <danakj@orodu.net>
2026-11-12 23:34:32 +00:00

411 lines
17 KiB
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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
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/declaration/extern_library.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/declaration/extern_library.carbon
// --- extern_library.carbon
library "[[@TEST_NAME]]";
extern library "extern_library_owner" fn F();
// --- extern_library_owner.carbon
library "[[@TEST_NAME]]";
import library "extern_library";
extern fn F();
// --- fail_extern_library_nonowner.carbon
library "[[@TEST_NAME]]";
import library "extern_library";
// CHECK:STDERR: ╭─┤ fail_extern_library_nonowner.carbon:[[@LINE+14]]:1
// CHECK:STDERR: -> │ extern fn F();
// CHECK:STDERR: · ┳━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: declaration in library "extern_library_nonowner" doesn't match
// CHECK:STDERR: · ┃ `extern library` declaration
// CHECK:STDERR: · ┃ [ExternLibraryIncorrect]
// CHECK:STDERR: ┆
// CHECK:STDERR: ├─┤ extern_library.carbon
// CHECK:STDERR: │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ──────────────────────┬──────────────────────
// CHECK:STDERR: · ╰──┤ previously declared with `extern library` here
// CHECK:STDERR: · │ [ExternLibraryExpected]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern fn F();
// --- fail_extern_library_nonextern.carbon
library "[[@TEST_NAME]]";
import library "extern_library";
// CHECK:STDERR: ╭─┤ fail_extern_library_nonextern.carbon:[[@LINE+12]]:1
// CHECK:STDERR: -> │ fn F();
// CHECK:STDERR: · ━━━┳━━━
// CHECK:STDERR: · ┗━━┫ error: redeclarations of `fn F` must match use of `extern`
// CHECK:STDERR: · ┃ [RedeclExternMismatch]
// CHECK:STDERR: ┆
// CHECK:STDERR: ├─┤ extern_library.carbon
// CHECK:STDERR: │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ──────────────────────┬──────────────────────
// CHECK:STDERR: · ╰──┤ previously declared here [RedeclPrevDecl]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
fn F();
// --- fail_extern_library_redecl.carbon
library "[[@TEST_NAME]]";
import library "extern_library";
// CHECK:STDERR: ╭─┤ fail_extern_library_redecl.carbon:[[@LINE+14]]:1
// CHECK:STDERR: -> │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: declaration in library "extern_library_redecl" doesn't match
// CHECK:STDERR: · ┃ `extern library` declaration
// CHECK:STDERR: · ┃ [ExternLibraryIncorrect]
// CHECK:STDERR: ┆
// CHECK:STDERR: ├─┤ extern_library.carbon
// CHECK:STDERR: │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ──────────────────────┬──────────────────────
// CHECK:STDERR: · ╰──┤ previously declared with `extern library` here
// CHECK:STDERR: · │ [ExternLibraryExpected]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern library "extern_library_owner" fn F();
// --- extern_library_copy.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: ╷ ╭── imported from: fail_extern_library_collision.carbon [InImport]
// CHECK:STDERR: ├─┤ extern_library_copy.carbon:[[@LINE+12]]:1
// CHECK:STDERR: -> │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: duplicate name `F` being declared in the same scope
// CHECK:STDERR: · ┃ [NameDeclDuplicate]
// CHECK:STDERR: ┆
// CHECK:STDERR: ├─┤ extern_library.carbon
// CHECK:STDERR: │ extern library "extern_library_owner" fn F();
// CHECK:STDERR: · ──────────────────────┬──────────────────────
// CHECK:STDERR: · ╰──┤ name is previously declared here [NameDeclPrevious]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern library "extern_library_owner" fn F();
// --- fail_extern_library_collision.carbon
library "[[@TEST_NAME]]";
import library "extern_library";
import library "extern_library_copy";
// --- extern_library_mismatch.carbon
library "[[@TEST_NAME]]";
extern library "extern_library_owner" fn F();
// --- fail_extern_library_mismatch_owner.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: ╭─┤ fail_extern_library_mismatch_owner.carbon:[[@LINE+15]]:41
// CHECK:STDERR: -> │ import library "extern_library_mismatch"
// CHECK:STDERR: · ┳
// CHECK:STDERR: · ┗━━┫ error: `import` declarations must
// CHECK:STDERR: · ┃ end with a `;`
// CHECK:STDERR: · ┃ [ExpectedDeclSemi]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
// CHECK:STDERR: ╭─┤ fail_extern_library_mismatch_owner.carbon:[[@LINE+7]]:1
// CHECK:STDERR: -> │ import library "extern_library_mismatch"
// CHECK:STDERR: · ━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: semantics TODO: `handle invalid parse trees in `check``
// CHECK:STDERR: · ┃ [SemanticsTodo]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
import library "extern_library_mismatch"
extern fn F();
// --- fail_extern_self_library.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: ╭─┤ fail_extern_self_library.carbon:[[@LINE+7]]:1
// CHECK:STDERR: -> │ extern library "extern_self_library" fn F();
// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: `extern library` cannot specify the current library
// CHECK:STDERR: · ┃ [ExternLibraryIsCurrentLibrary]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern library "extern_self_library" fn F();
// --- extern_of_import.carbon
library "[[@TEST_NAME]]";
fn F();
// --- fail_extern_of_import_redecl.carbon
library "[[@TEST_NAME]]";
import library "extern_of_import";
// CHECK:STDERR: ╭─┤ fail_extern_of_import_redecl.carbon:[[@LINE+12]]:1
// CHECK:STDERR: -> │ extern library "extern_of_import" fn F();
// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: redeclarations of `fn F` must match use of `extern`
// CHECK:STDERR: · ┃ [RedeclExternMismatch]
// CHECK:STDERR: ┆
// CHECK:STDERR: ├─┤ extern_of_import.carbon
// CHECK:STDERR: │ fn F();
// CHECK:STDERR: · ───┬───
// CHECK:STDERR: · ╰──┤ previously declared here [RedeclPrevDecl]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern library "extern_of_import" fn F();
// --- fail_extern_library_on_definition.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: ╭─┤ fail_extern_library_on_definition.carbon:[[@LINE+8]]:1
// CHECK:STDERR: -> │ extern library "extern_library_owner" fn F() {}
// CHECK:STDERR: · ┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
// CHECK:STDERR: · ┗━━┫ error: a library cannot be provided for an `extern` modifier on a
// CHECK:STDERR: · ┃ definition
// CHECK:STDERR: · ┃ [ExternLibraryOnDefinition]
// CHECK:STDERR: ╰────
// CHECK:STDERR:
extern library "extern_library_owner" fn F() {}
// CHECK:STDOUT: --- extern_library.carbon = $extern_library
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- extern_library_owner.carbon = $extern_library_owner
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F;
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_nonowner.carbon = $fail_extern_library_nonowner
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F;
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_nonextern.carbon = $fail_extern_library_nonextern
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F;
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_redecl.carbon = $fail_extern_library_redecl
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = invalid
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F;
// CHECK:STDOUT:
// CHECK:STDOUT: --- extern_library_copy.carbon = $extern_library_copy
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_collision.carbon = $fail_extern_library_collision
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.F = import_ref Main//extern_library, F, unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = imports.%Main.F
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- extern_library_mismatch.carbon = $extern_library_mismatch
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_mismatch_owner.carbon = $fail_extern_library_mismatch_owner
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_self_library.carbon = $fail_extern_self_library
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- extern_of_import.carbon = $extern_of_import
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_of_import_redecl.carbon = $fail_extern_of_import_redecl
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = invalid
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F [from "extern_of_import.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern_library_on_definition.carbon = $fail_extern_library_on_definition
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: extern fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: