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carbon-lang/toolchain/check/testdata/class/cross_package_import.carbon
T
Geoff Romer 09710d102f Separate binding insts for refs and values (#6235) 
This resolves a TODO in `expr_info.cpp` by using the inst kind rather
than the bound value to track the binding's category.

Since we're churning all the `bind_name` insts in testdata anyway, I'm
also taking this opportunity to align the inst naming with the design's
terminology, by calling these insts "bindings" (this aspect of the PR is
dependent on #6231 resolving an ambiguity in that terminology). For
consistency we'll need to rename several other insts as well (see the
TODO on `RefBinding`); I'm deferring that to a separate PR to minimize
the review load, but I think those name changes are in-scope for this
review.
2025-10-23 01:46:24 +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
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/convert.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/class/cross_package_import.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/cross_package_import.carbon
// ============================================================================
// Setup files
// ============================================================================
// --- other_define.carbon
package Other library "[[@TEST_NAME]]";
class C {}
// --- other_extern.carbon
package Other library "[[@TEST_NAME]]";
extern class C;
// --- other_conflict.carbon
package Other library "[[@TEST_NAME]]";
fn C() {}
// ============================================================================
// Test files
// ============================================================================
// --- define.carbon
library "[[@TEST_NAME]]";
import Other library "other_define";
var c: Other.C = {};
// --- fail_extern.carbon
library "[[@TEST_NAME]]";
import Other library "other_extern";
// CHECK:STDERR: fail_extern.carbon:[[@LINE+8]]:8: error: binding pattern has incomplete type `C` in name binding declaration [IncompleteTypeInBindingDecl]
// CHECK:STDERR: var c: Other.C = {};
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_extern.carbon:[[@LINE-5]]:1: in import [InImport]
// CHECK:STDERR: other_extern.carbon:4:1: note: class was forward declared here [ClassForwardDeclaredHere]
// CHECK:STDERR: extern class C;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR:
var c: Other.C = {};
// --- fail_todo_merge_define_extern.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_todo_merge_define_extern.carbon:[[@LINE+8]]:1: in import [InImport]
// CHECK:STDERR: other_extern.carbon:4:1: error: duplicate name `C` being declared in the same scope [NameDeclDuplicate]
// CHECK:STDERR: extern class C;
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_todo_merge_define_extern.carbon:[[@LINE+4]]:1: in import [InImport]
// CHECK:STDERR: other_define.carbon:4:1: note: name is previously declared here [NameDeclPrevious]
// CHECK:STDERR: class C {}
// CHECK:STDERR: ^~~~~~~~~
import Other library "other_define";
import Other library "other_extern";
// CHECK:STDERR: fail_todo_merge_define_extern.carbon:[[@LINE+4]]:8: note: in name lookup for `C` [InNameLookup]
// CHECK:STDERR: var c: Other.C = {};
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
var c: Other.C = {};
// --- fail_conflict.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_conflict.carbon:[[@LINE+8]]:1: in import [InImport]
// CHECK:STDERR: other_conflict.carbon:4:1: error: duplicate name `C` being declared in the same scope [NameDeclDuplicate]
// CHECK:STDERR: fn C() {}
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_conflict.carbon:[[@LINE+4]]:1: in import [InImport]
// CHECK:STDERR: other_define.carbon:4:1: note: name is previously declared here [NameDeclPrevious]
// CHECK:STDERR: class C {}
// CHECK:STDERR: ^~~~~~~~~
import Other library "other_define";
import Other library "other_conflict";
// CHECK:STDERR: fail_conflict.carbon:[[@LINE+4]]:8: note: in name lookup for `C` [InNameLookup]
// CHECK:STDERR: var c: Other.C = {};
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
var c: Other.C = {};
// CHECK:STDOUT: --- other_define.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: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// 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 constants.%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: --- other_extern.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C;
// CHECK:STDOUT:
// CHECK:STDOUT: --- other_conflict.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C.type: type = fn_type @C [concrete]
// CHECK:STDOUT: %C: %C.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %C.decl: %C.type = fn_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- define.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: %pattern_type: type = pattern_type %C [concrete]
// CHECK:STDOUT: %C.val: %C = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other: <namespace> = namespace file.%Other.import, [concrete] {
// CHECK:STDOUT: .C = %Other.C
// CHECK:STDOUT: import Other//other_define
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other.C: type = import_ref Other//other_define, C, loaded [concrete = constants.%C]
// CHECK:STDOUT: %Other.import_ref.8f2: <witness> = import_ref Other//other_define, loc4_10, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT: %Other.import_ref.2c4 = import_ref Other//other_define, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Other = imports.%Other
// CHECK:STDOUT: .c = %c
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Other.import = import Other
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: %pattern_type = ref_binding_pattern c [concrete]
// CHECK:STDOUT: %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c.var: ref %C = var %c.var_patt [concrete]
// CHECK:STDOUT: %.loc6: type = splice_block %C.ref [concrete = constants.%C] {
// CHECK:STDOUT: %Other.ref: <namespace> = name_ref Other, imports.%Other [concrete = imports.%Other]
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%Other.C [concrete = constants.%C]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c: ref %C = ref_binding c, %c.var [concrete = %c.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C [from "other_define.carbon"] {
// CHECK:STDOUT: complete_type_witness = imports.%Other.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Other.import_ref.2c4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc6_19.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %.loc6_19.2: init %C = class_init (), file.%c.var [concrete = constants.%C.val]
// CHECK:STDOUT: %.loc6_1: init %C = converted %.loc6_19.1, %.loc6_19.2 [concrete = constants.%C.val]
// CHECK:STDOUT: assign file.%c.var, %.loc6_1
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_extern.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: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other: <namespace> = namespace file.%Other.import, [concrete] {
// CHECK:STDOUT: .C = %Other.C
// CHECK:STDOUT: import Other//other_extern
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other.C: type = import_ref Other//other_extern, C, loaded [concrete = constants.%C]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Other = imports.%Other
// CHECK:STDOUT: .c = %c
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Other.import = import Other
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: <error> = ref_binding_pattern c [concrete]
// CHECK:STDOUT: %c.var_patt: <error> = var_pattern %c.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c.var: ref <error> = var %c.var_patt [concrete = <error>]
// CHECK:STDOUT: %.loc14: type = splice_block %C.ref [concrete = constants.%C] {
// CHECK:STDOUT: %Other.ref: <namespace> = name_ref Other, imports.%Other [concrete = imports.%Other]
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%Other.C [concrete = constants.%C]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c: ref <error> = ref_binding c, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C [from "other_extern.carbon"];
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc14: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: assign file.%c.var, <error>
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_todo_merge_define_extern.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: %pattern_type: type = pattern_type %C [concrete]
// CHECK:STDOUT: %C.val: %C = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other: <namespace> = namespace file.%Other.import, [concrete] {
// CHECK:STDOUT: .C = %Other.C
// CHECK:STDOUT: import Other//other_define
// CHECK:STDOUT: import Other//other_extern
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other.C: type = import_ref Other//other_define, C, loaded [concrete = constants.%C]
// CHECK:STDOUT: %Other.import_ref.8f2: <witness> = import_ref Other//other_define, loc4_10, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT: %Other.import_ref.2c4 = import_ref Other//other_define, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Other = imports.%Other
// CHECK:STDOUT: .c = %c
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Other.import = import Other
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: %pattern_type = ref_binding_pattern c [concrete]
// CHECK:STDOUT: %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c.var: ref %C = var %c.var_patt [concrete]
// CHECK:STDOUT: %.loc19: type = splice_block %C.ref [concrete = constants.%C] {
// CHECK:STDOUT: %Other.ref: <namespace> = name_ref Other, imports.%Other [concrete = imports.%Other]
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%Other.C [concrete = constants.%C]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c: ref %C = ref_binding c, %c.var [concrete = %c.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C [from "other_define.carbon"] {
// CHECK:STDOUT: complete_type_witness = imports.%Other.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Other.import_ref.2c4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc19_19.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %.loc19_19.2: init %C = class_init (), file.%c.var [concrete = constants.%C.val]
// CHECK:STDOUT: %.loc19_1: init %C = converted %.loc19_19.1, %.loc19_19.2 [concrete = constants.%C.val]
// CHECK:STDOUT: assign file.%c.var, %.loc19_1
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_conflict.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: %pattern_type: type = pattern_type %C [concrete]
// CHECK:STDOUT: %C.val: %C = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other: <namespace> = namespace file.%Other.import, [concrete] {
// CHECK:STDOUT: .C = %Other.C
// CHECK:STDOUT: import Other//other_define
// CHECK:STDOUT: import Other//other_conflict
// CHECK:STDOUT: }
// CHECK:STDOUT: %Other.C: type = import_ref Other//other_define, C, loaded [concrete = constants.%C]
// CHECK:STDOUT: %Other.import_ref.8f2: <witness> = import_ref Other//other_define, loc4_10, loaded [concrete = constants.%complete_type]
// CHECK:STDOUT: %Other.import_ref.2c4 = import_ref Other//other_define, inst{{[0-9A-F]+}} [no loc], unloaded
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Other = imports.%Other
// CHECK:STDOUT: .c = %c
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Other.import = import Other
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %c.patt: %pattern_type = ref_binding_pattern c [concrete]
// CHECK:STDOUT: %c.var_patt: %pattern_type = var_pattern %c.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c.var: ref %C = var %c.var_patt [concrete]
// CHECK:STDOUT: %.loc19: type = splice_block %C.ref [concrete = constants.%C] {
// CHECK:STDOUT: %Other.ref: <namespace> = name_ref Other, imports.%Other [concrete = imports.%Other]
// CHECK:STDOUT: %C.ref: type = name_ref C, imports.%Other.C [concrete = constants.%C]
// CHECK:STDOUT: }
// CHECK:STDOUT: %c: ref %C = ref_binding c, %c.var [concrete = %c.var]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C [from "other_define.carbon"] {
// CHECK:STDOUT: complete_type_witness = imports.%Other.import_ref.8f2
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Other.import_ref.2c4
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc19_19.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %.loc19_19.2: init %C = class_init (), file.%c.var [concrete = constants.%C.val]
// CHECK:STDOUT: %.loc19_1: init %C = converted %.loc19_19.1, %.loc19_19.2 [concrete = constants.%C.val]
// CHECK:STDOUT: assign file.%c.var, %.loc19_1
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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