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carbon-lang/toolchain/check/testdata/interface/fail_member_lookup.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/convert.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/interface/fail_member_lookup.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/fail_member_lookup.carbon
// --- fail_member_lookup.carbon
library "[[@TEST_NAME]]";
interface Interface {
fn F();
let T:! type;
}
fn F() {
// CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:3: error: value of type `<associated entity in Interface>` is not callable [CallToNonCallable]
// CHECK:STDERR: Interface.F();
// CHECK:STDERR: ^~~~~~~~~~~~~
// CHECK:STDERR:
Interface.F();
// CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+7]]:10: error: cannot implicitly convert non-type value of type `<associated entity in Interface>` to `type` [ConversionFailureNonTypeToFacet]
// CHECK:STDERR: var v: Interface.T;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:10: note: type `<associated entity in Interface>` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessNote]
// CHECK:STDERR: var v: Interface.T;
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
var v: Interface.T;
}
interface Different {}
// CHECK:STDERR: fail_member_lookup.carbon:[[@LINE+4]]:24: error: cannot convert type `U` that implements `Different` into type implementing `Interface` [ConversionFailureFacetToFacet]
// CHECK:STDERR: fn G(U:! Different) -> U.(Interface.T);
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR:
fn G(U:! Different) -> U.(Interface.T);
// CHECK:STDOUT: --- fail_member_lookup.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Interface.type: type = facet_type <@Interface> [concrete]
// CHECK:STDOUT: %Self.719: %Interface.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %Interface.F.type: type = fn_type @Interface.F [concrete]
// CHECK:STDOUT: %Interface.F: %Interface.F.type = struct_value () [concrete]
// CHECK:STDOUT: %Interface.assoc_type: type = assoc_entity_type @Interface [concrete]
// CHECK:STDOUT: %assoc0.b4c: %Interface.assoc_type = assoc_entity element0, @Interface.%Interface.F.decl [concrete]
// CHECK:STDOUT: %assoc1: %Interface.assoc_type = assoc_entity element1, @Interface.%T [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %Different.type: type = facet_type <@Different> [concrete]
// CHECK:STDOUT: %Self.e7f: %Different.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %U: %Different.type = bind_symbolic_name U, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.855: type = pattern_type %Different.type [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: .Destroy = %Core.Destroy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Interface = %Interface.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .Different = %Different.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Interface.decl: type = interface_decl @Interface [concrete = constants.%Interface.type] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: %Different.decl: type = interface_decl @Different [concrete = constants.%Different.type] {} {}
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %U.patt: %pattern_type.855 = symbolic_binding_pattern U, 0 [concrete]
// CHECK:STDOUT: %return.patt: <error> = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: <error> = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %U.ref: %Different.type = name_ref U, %U.loc32_6.2 [symbolic = %U.loc32_6.1 (constants.%U)]
// CHECK:STDOUT: %Interface.ref: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
// CHECK:STDOUT: %T.ref: %Interface.assoc_type = name_ref T, @T.%assoc1 [concrete = constants.%assoc1]
// CHECK:STDOUT: %Different.ref: type = name_ref Different, file.%Different.decl [concrete = constants.%Different.type]
// CHECK:STDOUT: %U.loc32_6.2: %Different.type = bind_symbolic_name U, 0 [symbolic = %U.loc32_6.1 (constants.%U)]
// CHECK:STDOUT: %return.param: ref <error> = out_param call_param0
// CHECK:STDOUT: %return: ref <error> = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Interface {
// CHECK:STDOUT: %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.719]
// CHECK:STDOUT: %Interface.F.decl: %Interface.F.type = fn_decl @Interface.F [concrete = constants.%Interface.F] {} {}
// CHECK:STDOUT: %assoc0: %Interface.assoc_type = assoc_entity element0, %Interface.F.decl [concrete = constants.%assoc0.b4c]
// CHECK:STDOUT: %T: type = assoc_const_decl @T [concrete] {
// CHECK:STDOUT: %assoc1: %Interface.assoc_type = assoc_entity element1, @Interface.%T [concrete = constants.%assoc1]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .F = %assoc0
// CHECK:STDOUT: .T = @T.%assoc1
// CHECK:STDOUT: witness = (%Interface.F.decl, %T)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Different {
// CHECK:STDOUT: %Self: %Different.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.e7f]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic assoc_const @T(@Interface.%Self: %Interface.type) {
// CHECK:STDOUT: assoc_const T:! type;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Interface.F(@Interface.%Self: %Interface.type) {
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Interface.ref.loc14: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
// CHECK:STDOUT: %F.ref: %Interface.assoc_type = name_ref F, @Interface.%assoc0 [concrete = constants.%assoc0.b4c]
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %v.patt: <error> = binding_pattern v [concrete]
// CHECK:STDOUT: %v.var_patt: <error> = var_pattern %v.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %v.var: ref <error> = var %v.var_patt [concrete = <error>]
// CHECK:STDOUT: %.1: <error> = splice_block <error> [concrete = <error>] {
// CHECK:STDOUT: %Interface.ref.loc23: type = name_ref Interface, file.%Interface.decl [concrete = constants.%Interface.type]
// CHECK:STDOUT: %T.ref: %Interface.assoc_type = name_ref T, @T.%assoc1 [concrete = constants.%assoc1]
// CHECK:STDOUT: %.loc23: type = converted %T.ref, <error> [concrete = <error>]
// CHECK:STDOUT: }
// CHECK:STDOUT: %v: <error> = bind_name v, <error> [concrete = <error>]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @G(%U.loc32_6.2: %Different.type) {
// CHECK:STDOUT: %U.loc32_6.1: %Different.type = bind_symbolic_name U, 0 [symbolic = %U.loc32_6.1 (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn() -> <error>;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Interface.F(constants.%Self.719) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @T(constants.%Self.719) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @G(constants.%U) {
// CHECK:STDOUT: %U.loc32_6.1 => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
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