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carbon-lang/toolchain/check/testdata/class/init_nested.carbon
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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/init_nested.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/init_nested.carbon
class Inner {
var a: i32;
var b: i32;
}
fn MakeInner() -> Inner;
class Outer {
var c: Inner;
var d: Inner;
}
fn MakeOuter() -> Outer {
return {.c = MakeInner(), .d = MakeInner()};
}
// CHECK:STDOUT: --- init_nested.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// 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 {.a: i32, .b: i32} [template]
// CHECK:STDOUT: %MakeInner.type: type = fn_type @MakeInner [template]
// CHECK:STDOUT: %MakeInner: %MakeInner.type = struct_value () [template]
// CHECK:STDOUT: %Outer: type = class_type @Outer [template]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [template]
// CHECK:STDOUT: %.5: type = unbound_element_type %Outer, %Inner [template]
// CHECK:STDOUT: %.6: type = struct_type {.c: %Inner, .d: %Inner} [template]
// CHECK:STDOUT: %MakeOuter.type: type = fn_type @MakeOuter [template]
// CHECK:STDOUT: %MakeOuter: %MakeOuter.type = struct_value () [template]
// CHECK:STDOUT: %.7: type = struct_type {.c: %.4, .d: %.4} [template]
// CHECK:STDOUT: %.8: type = ptr_type %.7 [template]
// CHECK:STDOUT: %.9: type = ptr_type %.6 [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: .Inner = %Inner.decl
// CHECK:STDOUT: .MakeInner = %MakeInner.decl
// CHECK:STDOUT: .Outer = %Outer.decl
// CHECK:STDOUT: .MakeOuter = %MakeOuter.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Inner.decl: type = class_decl @Inner [template = constants.%Inner] {}
// CHECK:STDOUT: %MakeInner.decl: %MakeInner.type = fn_decl @MakeInner [template = constants.%MakeInner] {
// CHECK:STDOUT: %Inner.ref: type = name_ref Inner, %Inner.decl [template = constants.%Inner]
// CHECK:STDOUT: @MakeInner.%return: ref %Inner = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: %Outer.decl: type = class_decl @Outer [template = constants.%Outer] {}
// CHECK:STDOUT: %MakeOuter.decl: %MakeOuter.type = fn_decl @MakeOuter [template = constants.%MakeOuter] {
// CHECK:STDOUT: %Outer.ref: type = name_ref Outer, %Outer.decl [template = constants.%Outer]
// CHECK:STDOUT: @MakeOuter.%return: ref %Outer = var <return slot>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Inner {
// CHECK:STDOUT: %int.make_type_32.loc12: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc12_10.1: type = value_of_initializer %int.make_type_32.loc12 [template = i32]
// CHECK:STDOUT: %.loc12_10.2: type = converted %int.make_type_32.loc12, %.loc12_10.1 [template = i32]
// CHECK:STDOUT: %.loc12_8: %.2 = field_decl a, element0 [template]
// CHECK:STDOUT: %int.make_type_32.loc13: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc13_10.1: type = value_of_initializer %int.make_type_32.loc13 [template = i32]
// CHECK:STDOUT: %.loc13_10.2: type = converted %int.make_type_32.loc13, %.loc13_10.1 [template = i32]
// CHECK:STDOUT: %.loc13_8: %.2 = field_decl b, element1 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Inner
// CHECK:STDOUT: .a = %.loc12_8
// CHECK:STDOUT: .b = %.loc13_8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Outer {
// CHECK:STDOUT: %Inner.ref.loc19: type = name_ref Inner, file.%Inner.decl [template = constants.%Inner]
// CHECK:STDOUT: %.loc19: %.5 = field_decl c, element0 [template]
// CHECK:STDOUT: %Inner.ref.loc20: type = name_ref Inner, file.%Inner.decl [template = constants.%Inner]
// CHECK:STDOUT: %.loc20: %.5 = field_decl d, element1 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Outer
// CHECK:STDOUT: .c = %.loc19
// CHECK:STDOUT: .d = %.loc20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeInner() -> %Inner;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeOuter() -> %return: %Outer {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %MakeInner.ref.loc24_16: %MakeInner.type = name_ref MakeInner, file.%MakeInner.decl [template = constants.%MakeInner]
// CHECK:STDOUT: %.loc24_45.1: ref %Inner = class_element_access %return, element0
// CHECK:STDOUT: %MakeInner.call.loc24_25: init %Inner = call %MakeInner.ref.loc24_16() to %.loc24_45.1
// CHECK:STDOUT: %MakeInner.ref.loc24_34: %MakeInner.type = name_ref MakeInner, file.%MakeInner.decl [template = constants.%MakeInner]
// CHECK:STDOUT: %.loc24_45.2: ref %Inner = class_element_access %return, element1
// CHECK:STDOUT: %MakeInner.call.loc24_43: init %Inner = call %MakeInner.ref.loc24_34() to %.loc24_45.2
// CHECK:STDOUT: %.loc24_45.3: %.6 = struct_literal (%MakeInner.call.loc24_25, %MakeInner.call.loc24_43)
// CHECK:STDOUT: %.loc24_45.4: init %Outer = class_init (%MakeInner.call.loc24_25, %MakeInner.call.loc24_43), %return
// CHECK:STDOUT: %.loc24_46: init %Outer = converted %.loc24_45.3, %.loc24_45.4
// CHECK:STDOUT: return %.loc24_46 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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