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carbon-lang/toolchain/check/testdata/impl/fail_undefined_interface.carbon
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Jon Ross-Perkins 7ccc1e0144 Expand naming for impls and functions (#5808)
Change impls from `<interface>.impl` to `<self>.as.<interface>.impl`,
and *member* functions to `<parent scope>.<fn>` (non-member functions
exclude their parent scope). Stop special-casing builtin functions,
given the new naming scheme.

The purpose of this is to make it clearer when a member function is
being accessed and, if so, which member function. In particular, we
often access interface `Op` functions. The builtin function
special-casing was intended to help with that, but we still have lots of
`Op` functions. This particular approach should make the interactions
clearer.

This changes up queueing of block IDs a little because, in particular,
we need to process bodies of entities only after constants finish
processing. But, it should also result in less memory usage during
processing because it means we have less on the insts stack at any given
time, since we track a block rather than all instructions contained by
the block.
2025-07-21 18:45:07 +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/none.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/impl/fail_undefined_interface.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/fail_undefined_interface.carbon
// --- fail_empty_struct.carbon
library "[[@TEST_NAME]]";
interface I;
// CHECK:STDERR: fail_empty_struct.carbon:[[@LINE+7]]:1: error: definition of impl as incomplete facet type `I` [ImplAsIncompleteFacetTypeDefinition]
// CHECK:STDERR: impl {} as I {}
// CHECK:STDERR: ^~~~~~~~~~~~~~
// CHECK:STDERR: fail_empty_struct.carbon:[[@LINE-4]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
// CHECK:STDERR: interface I;
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR:
impl {} as I {}
// --- fail_class.carbon
library "[[@TEST_NAME]]";
interface J;
class C {}
// CHECK:STDERR: fail_class.carbon:[[@LINE+7]]:1: error: definition of impl as incomplete facet type `J` [ImplAsIncompleteFacetTypeDefinition]
// CHECK:STDERR: impl C as J {}
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR: fail_class.carbon:[[@LINE-5]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
// CHECK:STDERR: interface J;
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR:
impl C as J {}
// --- fail_incomplete_where.carbon
library "[[@TEST_NAME]]";
class C {}
interface I {}
interface Incomplete;
// CHECK:STDERR: fail_incomplete_where.carbon:[[@LINE+7]]:1: error: definition of impl as incomplete facet type `I where .Self impls Incomplete` [ImplAsIncompleteFacetTypeDefinition]
// CHECK:STDERR: impl C as I where .Self impls Incomplete {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_incomplete_where.carbon:[[@LINE-5]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
// CHECK:STDERR: interface Incomplete;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
impl C as I where .Self impls Incomplete {}
// --- fail_declaration_incomplete_where_rewrite.carbon
library "[[@TEST_NAME]]";
class C {}
interface J { let T:! type; }
interface Incomplete;
// CHECK:STDERR: fail_declaration_incomplete_where_rewrite.carbon:[[@LINE+7]]:1: error: declaration of impl as incomplete facet type `J where .Self impls Incomplete and .(J.T) = ()` with rewrites [ImplAsIncompleteFacetTypeRewrites]
// CHECK:STDERR: impl C as J where .Self impls Incomplete and .T = ();
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_declaration_incomplete_where_rewrite.carbon:[[@LINE-5]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
// CHECK:STDERR: interface Incomplete;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
impl C as J where .Self impls Incomplete and .T = ();
// CHECK:STDOUT: --- fail_empty_struct.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: impl_decl @empty_struct_type.as.I.impl [concrete] {} {
// CHECK:STDOUT: %.loc12_7.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %.loc12_7.2: type = converted %.loc12_7.1, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I;
// CHECK:STDOUT:
// CHECK:STDOUT: impl @empty_struct_type.as.I.impl: %.loc12_7.2 as %I.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_class.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %J.type: type = facet_type <@J> [concrete]
// 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: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .J = %J.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: impl_decl @C.as.J.impl [concrete] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @J;
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.J.impl: %C.ref as %J.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %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: --- fail_incomplete_where.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: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %Incomplete.type: type = facet_type <@Incomplete> [concrete]
// CHECK:STDOUT: %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
// CHECK:STDOUT: %I_where.type: type = facet_type <@I where .Self impls @Incomplete> [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .Incomplete = %Incomplete.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: %Incomplete.decl: type = interface_decl @Incomplete [concrete = constants.%Incomplete.type] {} {}
// CHECK:STDOUT: impl_decl @C.as.I.impl [concrete] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %Incomplete.ref: type = name_ref Incomplete, file.%Incomplete.decl [concrete = constants.%Incomplete.type]
// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %.loc15_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %.loc15_13: type = where_expr %.Self [concrete = constants.%I_where.type] {
// CHECK:STDOUT: requirement_impls %.loc15_19, %Incomplete.ref
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Incomplete;
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.I.impl: %C.ref as %.loc15_13 {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %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: --- fail_declaration_incomplete_where_rewrite.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: %J.type: type = facet_type <@J> [concrete]
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %J.assoc_type: type = assoc_entity_type @J [concrete]
// CHECK:STDOUT: %assoc0: %J.assoc_type = assoc_entity element0, @J.%T [concrete]
// CHECK:STDOUT: %Incomplete.type: type = facet_type <@Incomplete> [concrete]
// CHECK:STDOUT: %.Self: %J.type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
// CHECK:STDOUT: %J.lookup_impl_witness: <witness> = lookup_impl_witness %.Self, @J [symbolic_self]
// CHECK:STDOUT: %J.facet: %J.type = facet_value %.Self.as_type, (%J.lookup_impl_witness) [symbolic_self]
// CHECK:STDOUT: %impl.elem0: type = impl_witness_access %J.lookup_impl_witness, element0 [symbolic_self]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %J_where.type: type = facet_type <@J where .Self impls @Incomplete and %impl.elem0 = %empty_tuple.type> [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .J = %J.decl
// CHECK:STDOUT: .Incomplete = %Incomplete.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
// CHECK:STDOUT: %Incomplete.decl: type = interface_decl @Incomplete [concrete = constants.%Incomplete.type] {} {}
// CHECK:STDOUT: impl_decl @C.as.J.impl [concrete] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
// CHECK:STDOUT: %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.Self.ref.loc15_19: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %Incomplete.ref: type = name_ref Incomplete, file.%Incomplete.decl [concrete = constants.%Incomplete.type]
// CHECK:STDOUT: %.Self.as_type.loc15_19: type = facet_access_type %.Self.ref.loc15_19 [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %.loc15_19: type = converted %.Self.ref.loc15_19, %.Self.as_type.loc15_19 [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %.Self.ref.loc15_46: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %T.ref: %J.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0]
// CHECK:STDOUT: %.Self.as_type.loc15_46: type = facet_access_type %.Self.ref.loc15_46 [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %.loc15_46: type = converted %.Self.ref.loc15_46, %.Self.as_type.loc15_46 [symbolic_self = constants.%.Self.as_type]
// CHECK:STDOUT: %impl.elem0: type = impl_witness_access constants.%J.lookup_impl_witness, element0 [symbolic_self = constants.%impl.elem0]
// CHECK:STDOUT: %.loc15_52.1: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc15_52.2: type = converted %.loc15_52.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: %.loc15_13: type = where_expr %.Self [concrete = constants.%J_where.type] {
// CHECK:STDOUT: requirement_impls %.loc15_19, %Incomplete.ref
// CHECK:STDOUT: requirement_rewrite %impl.elem0, %.loc15_52.2
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @J {
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %T: type = assoc_const_decl @T [concrete] {
// CHECK:STDOUT: %assoc0: %J.assoc_type = assoc_entity element0, @J.%T [concrete = constants.%assoc0]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .T = @T.%assoc0
// CHECK:STDOUT: witness = (%T)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Incomplete;
// CHECK:STDOUT:
// CHECK:STDOUT: generic assoc_const @T(@J.%Self: %J.type) {
// CHECK:STDOUT: assoc_const T:! type;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.J.impl: %C.ref as %.loc15_13;
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %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: specific @T(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T(constants.%J.facet) {}
// CHECK:STDOUT: