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carbon-lang/toolchain/check/testdata/class/adapt.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/adapt.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/adapt.carbon
// --- basic.carbon
library "basic";
class SomeClass {
var a: i32;
var b: i32;
}
class SomeClassAdapter {
adapt SomeClass;
}
class StructAdapter {
adapt {.a: i32, .b: i32};
}
// --- fail_not_extend.carbon
library "fail_not_extend";
class Adapted {
fn F();
}
class AdaptNotExtend {
adapt Adapted;
}
fn F(a: AdaptNotExtend) {
// `Adapted` is not extended, so lookup for `F` finds nothing.
// CHECK:STDERR: fail_not_extend.carbon:[[@LINE+3]]:3: ERROR: Name `F` not found.
// CHECK:STDERR: a.F();
// CHECK:STDERR: ^~~
a.F();
}
// CHECK:STDOUT: --- basic.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %SomeClass: type = class_type @SomeClass [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 %SomeClass, i32 [template]
// CHECK:STDOUT: %.3: type = struct_type {.a: i32, .b: i32} [template]
// CHECK:STDOUT: %SomeClassAdapter: type = class_type @SomeClassAdapter [template]
// CHECK:STDOUT: %.4: type = ptr_type %.3 [template]
// CHECK:STDOUT: %StructAdapter: type = class_type @StructAdapter [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: .SomeClass = %SomeClass.decl
// CHECK:STDOUT: .SomeClassAdapter = %SomeClassAdapter.decl
// CHECK:STDOUT: .StructAdapter = %StructAdapter.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %SomeClass.decl: type = class_decl @SomeClass [template = constants.%SomeClass] {}
// CHECK:STDOUT: %SomeClassAdapter.decl: type = class_decl @SomeClassAdapter [template = constants.%SomeClassAdapter] {}
// CHECK:STDOUT: %StructAdapter.decl: type = class_decl @StructAdapter [template = constants.%StructAdapter] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @SomeClass {
// CHECK:STDOUT: %int.make_type_32.loc5: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc5_10.1: type = value_of_initializer %int.make_type_32.loc5 [template = i32]
// CHECK:STDOUT: %.loc5_10.2: type = converted %int.make_type_32.loc5, %.loc5_10.1 [template = i32]
// CHECK:STDOUT: %.loc5_8: %.2 = field_decl a, element0 [template]
// CHECK:STDOUT: %int.make_type_32.loc6: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc6_10.1: type = value_of_initializer %int.make_type_32.loc6 [template = i32]
// CHECK:STDOUT: %.loc6_10.2: type = converted %int.make_type_32.loc6, %.loc6_10.1 [template = i32]
// CHECK:STDOUT: %.loc6_8: %.2 = field_decl b, element1 [template]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%SomeClass
// CHECK:STDOUT: .a = %.loc5_8
// CHECK:STDOUT: .b = %.loc6_8
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @SomeClassAdapter {
// CHECK:STDOUT: %SomeClass.ref: type = name_ref SomeClass, file.%SomeClass.decl [template = constants.%SomeClass]
// CHECK:STDOUT: adapt_decl %SomeClass
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%SomeClassAdapter
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @StructAdapter {
// CHECK:STDOUT: %int.make_type_32.loc14_14: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc14_14.1: type = value_of_initializer %int.make_type_32.loc14_14 [template = i32]
// CHECK:STDOUT: %.loc14_14.2: type = converted %int.make_type_32.loc14_14, %.loc14_14.1 [template = i32]
// CHECK:STDOUT: %int.make_type_32.loc14_23: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc14_23.1: type = value_of_initializer %int.make_type_32.loc14_23 [template = i32]
// CHECK:STDOUT: %.loc14_23.2: type = converted %int.make_type_32.loc14_23, %.loc14_23.1 [template = i32]
// CHECK:STDOUT: %.loc14_26: type = struct_type {.a: i32, .b: i32} [template = constants.%.3]
// CHECK:STDOUT: adapt_decl %.3
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%StructAdapter
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_not_extend.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Adapted: type = class_type @Adapted [template]
// CHECK:STDOUT: %F.type.1: type = fn_type @F.1 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %F.1: %F.type.1 = struct_value () [template]
// CHECK:STDOUT: %.2: type = struct_type {} [template]
// CHECK:STDOUT: %AdaptNotExtend: type = class_type @AdaptNotExtend [template]
// CHECK:STDOUT: %.3: type = ptr_type %.2 [template]
// CHECK:STDOUT: %F.type.2: type = fn_type @F.2 [template]
// CHECK:STDOUT: %F.2: %F.type.2 = struct_value () [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/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: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Adapted = %Adapted.decl
// CHECK:STDOUT: .AdaptNotExtend = %AdaptNotExtend.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Adapted.decl: type = class_decl @Adapted [template = constants.%Adapted] {}
// CHECK:STDOUT: %AdaptNotExtend.decl: type = class_decl @AdaptNotExtend [template = constants.%AdaptNotExtend] {}
// CHECK:STDOUT: %F.decl: %F.type.2 = fn_decl @F.2 [template = constants.%F.2] {
// CHECK:STDOUT: %AdaptNotExtend.ref: type = name_ref AdaptNotExtend, %AdaptNotExtend.decl [template = constants.%AdaptNotExtend]
// CHECK:STDOUT: %a.loc12_6.1: %AdaptNotExtend = param a
// CHECK:STDOUT: @F.2.%a: %AdaptNotExtend = bind_name a, %a.loc12_6.1
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Adapted {
// CHECK:STDOUT: %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Adapted
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @AdaptNotExtend {
// CHECK:STDOUT: %Adapted.ref: type = name_ref Adapted, file.%Adapted.decl [template = constants.%Adapted]
// CHECK:STDOUT: adapt_decl %Adapted
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%AdaptNotExtend
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2(%a: %AdaptNotExtend) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %a.ref: %AdaptNotExtend = name_ref a, %a
// CHECK:STDOUT: %F.ref: <error> = name_ref F, <error> [template = <error>]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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