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carbon-lang/toolchain/check/testdata/class/nested_name.carbon
T
Jon Ross-PerkinsandRichard Smith 7ded56ef35 Improve namespace handling in imports. (#4153) 
This implements a few closely related features:

- Starts merging namespaces discovered inside imports.
- Stores results of cross-package name lookup as an entry inside the
scope.
  - Note this is particularly visible with `i32`.
- Moves more of the imported instructions to the import scope.

Note this is primarily for executing the namespace TODO in check.cpp,
which is removed here.
`testdata/namespace/merging_with_indirections.carbon` tests key
behavior.

---------

Co-authored-by: Richard Smith <richard@metafoo.co.uk>
2024-07-24 19:56:17 +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/nested_name.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/nested_name.carbon
class Outer {
class Inner {
var n: i32;
}
}
fn F(oi: Outer.Inner) -> i32 {
return oi.n;
}
fn G(o: Outer) {
var i: o.Inner;
}
// CHECK:STDOUT: --- nested_name.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Outer: type = class_type @Outer [template]
// CHECK:STDOUT: %Inner: type = class_type @Inner [template]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %.2: type = unbound_element_type %Inner, i32 [template]
// CHECK:STDOUT: %.3: type = struct_type {.n: i32} [template]
// CHECK:STDOUT: %.4: type = struct_type {} [template]
// CHECK:STDOUT: %.5: type = ptr_type %.4 [template]
// CHECK:STDOUT: %F.type: type = fn_type @F [template]
// CHECK:STDOUT: %F: %F.type = struct_value () [template]
// CHECK:STDOUT: %.6: type = ptr_type %.3 [template]
// CHECK:STDOUT: %G.type: type = fn_type @G [template]
// CHECK:STDOUT: %G: %G.type = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref: %Int32.type = import_ref Core//prelude/types, inst+4, loaded [template = constants.%Int32]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Outer = %Outer.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Outer.decl: type = class_decl @Outer [template = constants.%Outer] {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [template = constants.%F] {
// CHECK:STDOUT: %Outer.ref.loc17: type = name_ref Outer, %Outer.decl [template = constants.%Outer]
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [template = constants.%Inner]
// CHECK:STDOUT: %oi.loc17_6.1: %Inner = param oi
// CHECK:STDOUT: @F.%oi: %Inner = bind_name oi, %oi.loc17_6.1
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc17_26.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc17_26.2: type = converted %int.make_type_32, %.loc17_26.1 [template = i32]
// CHECK:STDOUT: @F.%return: ref i32 = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [template = constants.%G] {
// CHECK:STDOUT: %Outer.ref.loc21: type = name_ref Outer, %Outer.decl [template = constants.%Outer]
// CHECK:STDOUT: %o.loc21_6.1: %Outer = param o
// CHECK:STDOUT: @G.%o: %Outer = bind_name o, %o.loc21_6.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Outer {
// CHECK:STDOUT: %Inner.decl: type = class_decl @Inner [template = constants.%Inner] {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Outer
// CHECK:STDOUT: .Inner = %Inner.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Inner {
// CHECK:STDOUT: %int.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc13_12.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc13_12.2: type = converted %int.make_type_32, %.loc13_12.1 [template = i32]
// CHECK:STDOUT: %.loc13_10: %.2 = field_decl n, element0 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Inner
// CHECK:STDOUT: .n = %.loc13_10
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%oi: %Inner) -> i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %oi.ref: %Inner = name_ref oi, %oi
// CHECK:STDOUT: %n.ref: %.2 = name_ref n, @Inner.%.loc13_10 [template = @Inner.%.loc13_10]
// CHECK:STDOUT: %.loc18_12.1: ref i32 = class_element_access %oi.ref, element0
// CHECK:STDOUT: %.loc18_12.2: i32 = bind_value %.loc18_12.1
// CHECK:STDOUT: return %.loc18_12.2
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G(%o: %Outer) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %o.ref: %Outer = name_ref o, %o
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, @Outer.%Inner.decl [template = constants.%Inner]
// CHECK:STDOUT: %i.var: ref %Inner = var i
// CHECK:STDOUT: %i: ref %Inner = bind_name i, %i.var
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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