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https://github.com/carbon-language/carbon-lang.git
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Jon Ross-Perkins
4a6376cf59
This also does a little restructuring in the same direction, following #6124. Leads want `Destroy` to work similarly now for all types. As a consequence, there doesn't seem to be as much benefit to splitting off aggregate destruction. In this PR, the `type.destroy` function can now be expected to destroy anything that's destructible; that means it'll be usable for the `final fn` once that support is available. Similarly, this gets rid of the impls other than the single blanket impl, now using `type.can_destroy`. Since they all need to use the same function, there's no benefit to splitting approaches. Also, now it can just be a `final impl` since there should be no need for people to create specializations -- if this blanket impl applies, it means the `final fn` is the same. This also slips in `partial` support since there's no reason to have it diverge anymore. Also `abstract`, which I'm not sure is broadly testable since most cases it'd come up, the `abstract` keyword is explicitly detected/rejected. Note though that this doesn't make any really big changes. It's just realigning on the leads decision. I'm going this way to try to reduce name-related churn for other changes.
93 lines
4.7 KiB
Plaintext
93 lines
4.7 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/convert.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/enum/copy.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/enum/copy.carbon
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// --- enum.h
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enum Enum : short { a, b, c };
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// --- copy_enum.carbon
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library "[[@TEST_NAME]]";
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import Cpp library "enum.h";
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//@dump-sem-ir-begin
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fn F() {
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var a: Cpp.Enum = Cpp.Enum.a;
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a = Cpp.Enum.b;
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}
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//@dump-sem-ir-end
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// CHECK:STDOUT: --- copy_enum.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
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// CHECK:STDOUT: %Enum: type = class_type @Enum [concrete]
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// CHECK:STDOUT: %pattern_type.ebf: type = pattern_type %Enum [concrete]
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// CHECK:STDOUT: %int_0: %Enum = int_value 0 [concrete]
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// CHECK:STDOUT: %int_1: %Enum = int_value 1 [concrete]
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// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
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// CHECK:STDOUT: %facet_value: %type_where = facet_value %Enum, () [concrete]
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// CHECK:STDOUT: %DestroyT.as_type.as.Destroy.impl.Op.type.ae5: type = fn_type @DestroyT.as_type.as.Destroy.impl.Op, @DestroyT.as_type.as.Destroy.impl(%facet_value) [concrete]
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// CHECK:STDOUT: %DestroyT.as_type.as.Destroy.impl.Op.5fc: %DestroyT.as_type.as.Destroy.impl.Op.type.ae5 = struct_value () [concrete]
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// CHECK:STDOUT: %ptr.47b: type = ptr_type %Enum [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
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// CHECK:STDOUT: .Enum = %Enum.decl
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// CHECK:STDOUT: import Cpp//...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Enum.decl: type = class_decl @Enum [concrete = constants.%Enum] {} {}
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// CHECK:STDOUT: %int_0: %Enum = int_value 0 [concrete = constants.%int_0]
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// CHECK:STDOUT: %int_1: %Enum = int_value 1 [concrete = constants.%int_1]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @F() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %a.patt: %pattern_type.ebf = binding_pattern a [concrete]
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// CHECK:STDOUT: %a.var_patt: %pattern_type.ebf = var_pattern %a.patt [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %a.var: ref %Enum = var %a.var_patt
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// CHECK:STDOUT: %Cpp.ref.loc8_21: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Enum.ref.loc8_24: type = name_ref Enum, imports.%Enum.decl [concrete = constants.%Enum]
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// CHECK:STDOUT: %a.ref.loc8: %Enum = name_ref a, imports.%int_0 [concrete = constants.%int_0]
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// CHECK:STDOUT: assign %a.var, %a.ref.loc8
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// CHECK:STDOUT: %.loc8_13: type = splice_block %Enum.ref.loc8_13 [concrete = constants.%Enum] {
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// CHECK:STDOUT: %Cpp.ref.loc8_10: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Enum.ref.loc8_13: type = name_ref Enum, imports.%Enum.decl [concrete = constants.%Enum]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %a: ref %Enum = bind_name a, %a.var
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// CHECK:STDOUT: %a.ref.loc10: ref %Enum = name_ref a, %a
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// CHECK:STDOUT: %Cpp.ref.loc10: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
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// CHECK:STDOUT: %Enum.ref.loc10: type = name_ref Enum, imports.%Enum.decl [concrete = constants.%Enum]
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// CHECK:STDOUT: %b.ref: %Enum = name_ref b, imports.%int_1 [concrete = constants.%int_1]
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// CHECK:STDOUT: assign %a.ref.loc10, %b.ref
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// CHECK:STDOUT: %facet_value: %type_where = facet_value constants.%Enum, () [concrete = constants.%facet_value]
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// CHECK:STDOUT: %.loc8_3: %type_where = converted constants.%Enum, %facet_value [concrete = constants.%facet_value]
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// CHECK:STDOUT: %DestroyT.as_type.as.Destroy.impl.Op.bound: <bound method> = bound_method %a.var, constants.%DestroyT.as_type.as.Destroy.impl.Op.5fc
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: %bound_method: <bound method> = bound_method %a.var, %DestroyT.as_type.as.Destroy.impl.Op.specific_fn
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// CHECK:STDOUT: %addr: %ptr.47b = addr_of %a.var
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// CHECK:STDOUT: %DestroyT.as_type.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method(%addr)
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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