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e682a6660de9966553c7da04dacdcd767eb247c5
carbon-lang/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
T
Dana Jansens e682a6660d Avoid adding extraneous local instructions while importing witness table entries (#6180) 
When deducing arguments for generic parameters of an `impl`, the
deduction calls `Convert` on the input arguments. Often, the input
argument is a facet, and needs to be converted to a type via
FacetAccessType in order to produce a different facet. These
instructions end up being added to the semir, but only their constant
values are needed for the resulting specific returned from Deduce.

In the best case, these extra instructions are just noise in the semir,
or they just cause instruction names to get differentiated with larger
suffixes.

In the worst case, these extra instructions contain references to
instructions from a generic context, and leak them out of that generic
context and into another. In particular, when importing a
LookupImplWitness instruction, the re-evaluation of it can do deduce
(when the lookup is against a generic `impl`). The instructions created
in Deduce are not part of the import, and end up referring to imported
instructions from the local context, which leads to confusion in the
toolchain, and can crash.

The `import_self_specific.carbon` test demonstrates this. It causes the
`I.F` function to be imported from the `I` interface when building the
witness table for the `impl`. Doing so imports the specific of `C` which
includes a LookupImplWitness for `Self.Accoc` in `I`. The `Self` is a
BindSymbolicName with generic binding index 0, in `I`. When Convert
creates instructions in the generic `impl forall D`, however, they end
up referencing and including this BindSymbolicName into its eval block.
But the generic binding 0 in the `impl` is a very different thing (a
value of type `E`). This confusion leads to crashes.
2025-10-09 16:07:30 +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/destroy.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_impl_as_scope.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/fail_impl_as_scope.carbon
// --- fail_impl_as_file_scope.carbon
library "[[@TEST_NAME]]";
interface I {}
fn G() {}
// CHECK:STDERR: fail_impl_as_file_scope.carbon:[[@LINE+4]]:6: error: `impl as` can only be used in a class [ImplAsOutsideClass]
// CHECK:STDERR: impl as I {}
// CHECK:STDERR: ^~
// CHECK:STDERR:
impl as I {}
fn F() { G(); }
// --- fail_impl_as_function_scope.carbon
library "[[@TEST_NAME]]";
interface J {}
fn G() {}
fn F() {
// CHECK:STDERR: fail_impl_as_function_scope.carbon:[[@LINE+4]]:8: error: `impl as` can only be used in a class [ImplAsOutsideClass]
// CHECK:STDERR: impl as J {}
// CHECK:STDERR: ^~
// CHECK:STDERR:
impl as J {}
G();
}
// --- fail_impl_as_self_interface.carbon
library "[[@TEST_NAME]]";
interface Z {
fn Zero();
fn Method[self: Self]();
// CHECK:STDERR: fail_impl_as_self_interface.carbon:[[@LINE+4]]:9: error: `impl as` can only be used in a class [ImplAsOutsideClass]
// CHECK:STDERR: impl as Z {
// CHECK:STDERR: ^~
// CHECK:STDERR:
impl as Z {
fn Zero() {}
fn Method[self: Self]() {}
}
}
class Point {
impl as Z {
fn Zero() {}
fn Method[self: Self]() {}
}
}
fn F() {
// Even if the `impl` is diagnosed above, we must not add the impl of the
// interface to itself in a way that allows it to be used during impl lookup,
// or we end up with infinite impl lookup recursion here.
Point.(Z.Zero)();
({} as Point).(Z.Method)();
}
// --- fail_impl_as_other_interface.carbon
library "[[@TEST_NAME]]";
interface A {
fn B();
}
interface C {}
fn G() {}
class X {
impl as A {
// CHECK:STDERR: fail_impl_as_other_interface.carbon:[[@LINE+4]]:10: error: `impl as` can only be used in a class [ImplAsOutsideClass]
// CHECK:STDERR: impl as C {}
// CHECK:STDERR: ^~
// CHECK:STDERR:
impl as C {}
fn B() {
G();
}
}
}
// CHECK:STDOUT: --- fail_impl_as_file_scope.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
// CHECK:STDOUT: impl_decl @<error>.as.I.impl [concrete] {} {
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// 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: impl @<error>.as.I.impl: <error> as %I.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %G.ref: %G.type = name_ref G, file.%G.decl [concrete = constants.%G]
// CHECK:STDOUT: %G.call: init %empty_tuple.type = call %G.ref()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_as_function_scope.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %J.type: type = facet_type <@J> [concrete]
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .J = %J.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @J {
// CHECK:STDOUT: %Self: %J.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: impl @<error>.as.J.impl: <error> as %J.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: impl_decl @<error>.as.J.impl [concrete] {} {
// CHECK:STDOUT: %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.ref: %G.type = name_ref G, file.%G.decl [concrete = constants.%G]
// CHECK:STDOUT: %G.call: init %empty_tuple.type = call %G.ref()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_as_self_interface.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Z.type: type = facet_type <@Z> [concrete]
// CHECK:STDOUT: %Self.1d7: %Z.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %Z.Zero.type: type = fn_type @Z.Zero [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %Z.Zero: %Z.Zero.type = struct_value () [concrete]
// CHECK:STDOUT: %Z.assoc_type: type = assoc_entity_type @Z [concrete]
// CHECK:STDOUT: %assoc0.534: %Z.assoc_type = assoc_entity element0, @Z.%Z.Zero.decl [concrete]
// CHECK:STDOUT: %Self.binding.as_type.c3d: type = symbolic_binding_type Self, 0, %Self.1d7 [symbolic]
// CHECK:STDOUT: %pattern_type.5d1: type = pattern_type %Self.binding.as_type.c3d [symbolic]
// CHECK:STDOUT: %Z.Method.type: type = fn_type @Z.Method [concrete]
// CHECK:STDOUT: %Z.Method: %Z.Method.type = struct_value () [concrete]
// CHECK:STDOUT: %assoc1: %Z.assoc_type = assoc_entity element1, @Z.%Z.Method.decl [concrete]
// CHECK:STDOUT: %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self.1d7) [symbolic]
// CHECK:STDOUT: %<error>.as.Z.impl.Zero: %<error>.as.Z.impl.Zero.type = struct_value () [symbolic]
// CHECK:STDOUT: %<error>.as.Z.impl.Method.type: type = fn_type @<error>.as.Z.impl.Method, @<error>.as.Z.impl(%Self.1d7) [symbolic]
// CHECK:STDOUT: %<error>.as.Z.impl.Method: %<error>.as.Z.impl.Method.type = struct_value () [symbolic]
// CHECK:STDOUT: %require_complete.5c2: <witness> = require_complete_type %Self.binding.as_type.c3d [symbolic]
// CHECK:STDOUT: %Point: type = class_type @Point [concrete]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness @Point.%Z.impl_witness_table [concrete]
// CHECK:STDOUT: %Point.as.Z.impl.Zero.type: type = fn_type @Point.as.Z.impl.Zero [concrete]
// CHECK:STDOUT: %Point.as.Z.impl.Zero: %Point.as.Z.impl.Zero.type = struct_value () [concrete]
// CHECK:STDOUT: %pattern_type.35b: type = pattern_type %Point [concrete]
// CHECK:STDOUT: %Point.as.Z.impl.Method.type: type = fn_type @Point.as.Z.impl.Method [concrete]
// CHECK:STDOUT: %Point.as.Z.impl.Method: %Point.as.Z.impl.Method.type = struct_value () [concrete]
// CHECK:STDOUT: %Z.facet: %Z.type = facet_value %Point, (%Z.impl_witness) [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %.1d8: type = fn_type_with_self_type %Z.Zero.type, %Z.facet [concrete]
// CHECK:STDOUT: %Point.val: %Point = struct_value () [concrete]
// CHECK:STDOUT: %.142: type = fn_type_with_self_type %Z.Method.type, %Z.facet [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls <CanDestroy>> [concrete]
// CHECK:STDOUT: %facet_value: %type_where = facet_value %Point, () [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.b86: type = fn_type @DestroyT.binding.as_type.as.Destroy.impl.Op, @DestroyT.binding.as_type.as.Destroy.impl(%facet_value) [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.3aa: %DestroyT.binding.as_type.as.Destroy.impl.Op.type.b86 = struct_value () [concrete]
// CHECK:STDOUT: %ptr.536: type = ptr_type %Point [concrete]
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function %DestroyT.binding.as_type.as.Destroy.impl.Op.3aa, @DestroyT.binding.as_type.as.Destroy.impl.Op(%facet_value) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .Destroy = %Core.Destroy
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// 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: .Z = %Z.decl
// CHECK:STDOUT: .Point = %Point.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Z.decl: type = interface_decl @Z [concrete = constants.%Z.type] {} {}
// CHECK:STDOUT: %Point.decl: type = class_decl @Point [concrete = constants.%Point] {} {}
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Z {
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1d7]
// CHECK:STDOUT: %Z.Zero.decl: %Z.Zero.type = fn_decl @Z.Zero [concrete = constants.%Z.Zero] {} {}
// CHECK:STDOUT: %assoc0: %Z.assoc_type = assoc_entity element0, %Z.Zero.decl [concrete = constants.%assoc0.534]
// CHECK:STDOUT: %Z.Method.decl: %Z.Method.type = fn_decl @Z.Method [concrete = constants.%Z.Method] {
// CHECK:STDOUT: %self.patt: @Z.Method.%pattern_type (%pattern_type.5d1) = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: @Z.Method.%pattern_type (%pattern_type.5d1) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: @Z.Method.%Self.binding.as_type (%Self.binding.as_type.c3d) = value_param call_param0
// CHECK:STDOUT: %.loc5_19.1: type = splice_block %.loc5_19.2 [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)] {
// CHECK:STDOUT: %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.1d7)]
// CHECK:STDOUT: %Self.as_type: type = facet_access_type %Self.ref [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: %.loc5_19.2: type = converted %Self.ref, %Self.as_type [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %self: @Z.Method.%Self.binding.as_type (%Self.binding.as_type.c3d) = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %assoc1: %Z.assoc_type = assoc_entity element1, %Z.Method.decl [concrete = constants.%assoc1]
// CHECK:STDOUT: impl_decl @<error>.as.Z.impl [concrete] {} {
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .Zero = %assoc0
// CHECK:STDOUT: .Method = %assoc1
// CHECK:STDOUT: .Z = <poisoned>
// CHECK:STDOUT: witness = (%Z.Zero.decl, %Z.Method.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @<error>.as.Z.impl(@Z.%Self: %Z.type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1d7)]
// CHECK:STDOUT: %<error>.as.Z.impl.Zero.type: type = fn_type @<error>.as.Z.impl.Zero, @<error>.as.Z.impl(%Self) [symbolic = %<error>.as.Z.impl.Zero.type (constants.%<error>.as.Z.impl.Zero.type)]
// CHECK:STDOUT: %<error>.as.Z.impl.Zero: @<error>.as.Z.impl.%<error>.as.Z.impl.Zero.type (%<error>.as.Z.impl.Zero.type) = struct_value () [symbolic = %<error>.as.Z.impl.Zero (constants.%<error>.as.Z.impl.Zero)]
// CHECK:STDOUT: %<error>.as.Z.impl.Method.type: type = fn_type @<error>.as.Z.impl.Method, @<error>.as.Z.impl(%Self) [symbolic = %<error>.as.Z.impl.Method.type (constants.%<error>.as.Z.impl.Method.type)]
// CHECK:STDOUT: %<error>.as.Z.impl.Method: @<error>.as.Z.impl.%<error>.as.Z.impl.Method.type (%<error>.as.Z.impl.Method.type) = struct_value () [symbolic = %<error>.as.Z.impl.Method (constants.%<error>.as.Z.impl.Method)]
// CHECK:STDOUT:
// CHECK:STDOUT: impl: <error> as %Z.ref {
// CHECK:STDOUT: %<error>.as.Z.impl.Zero.decl: @<error>.as.Z.impl.%<error>.as.Z.impl.Zero.type (%<error>.as.Z.impl.Zero.type) = fn_decl @<error>.as.Z.impl.Zero [symbolic = @<error>.as.Z.impl.%<error>.as.Z.impl.Zero (constants.%<error>.as.Z.impl.Zero)] {} {}
// CHECK:STDOUT: %<error>.as.Z.impl.Method.decl: @<error>.as.Z.impl.%<error>.as.Z.impl.Method.type (%<error>.as.Z.impl.Method.type) = fn_decl @<error>.as.Z.impl.Method [symbolic = @<error>.as.Z.impl.%<error>.as.Z.impl.Method (constants.%<error>.as.Z.impl.Method)] {
// CHECK:STDOUT: %self.patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.5d1) = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: @<error>.as.Z.impl.Method.%pattern_type (%pattern_type.5d1) = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: @<error>.as.Z.impl.Method.%Self.binding.as_type (%Self.binding.as_type.c3d) = value_param call_param0
// CHECK:STDOUT: %.loc13_21.1: type = splice_block %.loc13_21.2 [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)] {
// CHECK:STDOUT: %Self.ref: %Z.type = name_ref Self, @Z.%Self [symbolic = %Self (constants.%Self.1d7)]
// CHECK:STDOUT: %Self.as_type: type = facet_access_type %Self.ref [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: %.loc13_21.2: type = converted %Self.ref, %Self.as_type [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %self: @<error>.as.Z.impl.Method.%Self.binding.as_type (%Self.binding.as_type.c3d) = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Zero = %<error>.as.Z.impl.Zero.decl
// CHECK:STDOUT: .Method = %<error>.as.Z.impl.Method.decl
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Point.as.Z.impl: %Self.ref as %Z.ref {
// CHECK:STDOUT: %Point.as.Z.impl.Zero.decl: %Point.as.Z.impl.Zero.type = fn_decl @Point.as.Z.impl.Zero [concrete = constants.%Point.as.Z.impl.Zero] {} {}
// CHECK:STDOUT: %Point.as.Z.impl.Method.decl: %Point.as.Z.impl.Method.type = fn_decl @Point.as.Z.impl.Method [concrete = constants.%Point.as.Z.impl.Method] {
// CHECK:STDOUT: %self.patt: %pattern_type.35b = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: %pattern_type.35b = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %Point = value_param call_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%Point [concrete = constants.%Point]
// CHECK:STDOUT: %self: %Point = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Zero = %Point.as.Z.impl.Zero.decl
// CHECK:STDOUT: .Method = %Point.as.Z.impl.Method.decl
// CHECK:STDOUT: witness = @Point.%Z.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Point {
// CHECK:STDOUT: impl_decl @Point.as.Z.impl [concrete] {} {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%Point [concrete = constants.%Point]
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Z.impl_witness_table = impl_witness_table (@Point.as.Z.impl.%Point.as.Z.impl.Zero.decl, @Point.as.Z.impl.%Point.as.Z.impl.Method.decl), @Point.as.Z.impl [concrete]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table [concrete = constants.%Z.impl_witness]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Point
// CHECK:STDOUT: .Z = <poisoned>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Z.Zero(@Z.%Self: %Z.type) {
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @Z.Method(@Z.%Self: %Z.type) {
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1d7)]
// CHECK:STDOUT: %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Self.binding.as_type [symbolic = %pattern_type (constants.%pattern_type.5d1)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%self.param: @Z.Method.%Self.binding.as_type (%Self.binding.as_type.c3d));
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @<error>.as.Z.impl.Zero(@Z.%Self: %Z.type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: fn() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @<error>.as.Z.impl.Method(@Z.%Self: %Z.type) {
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = %Self (constants.%Self.1d7)]
// CHECK:STDOUT: %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type.c3d)]
// CHECK:STDOUT: %pattern_type: type = pattern_type %Self.binding.as_type [symbolic = %pattern_type (constants.%pattern_type.5d1)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %require_complete: <witness> = require_complete_type %Self.binding.as_type [symbolic = %require_complete (constants.%require_complete.5c2)]
// CHECK:STDOUT:
// CHECK:STDOUT: fn(%self.param: @<error>.as.Z.impl.Method.%Self.binding.as_type (%Self.binding.as_type.c3d)) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Point.as.Z.impl.Zero() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Point.as.Z.impl.Method(%self.param: %Point) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %Point.ref.loc28: type = name_ref Point, file.%Point.decl [concrete = constants.%Point]
// CHECK:STDOUT: %Z.ref.loc28: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: %Zero.ref: %Z.assoc_type = name_ref Zero, @Z.%assoc0 [concrete = constants.%assoc0.534]
// CHECK:STDOUT: %Z.facet: %Z.type = facet_value %Point.ref.loc28, (constants.%Z.impl_witness) [concrete = constants.%Z.facet]
// CHECK:STDOUT: %.loc28: %Z.type = converted %Point.ref.loc28, %Z.facet [concrete = constants.%Z.facet]
// CHECK:STDOUT: %impl.elem0: %.1d8 = impl_witness_access constants.%Z.impl_witness, element0 [concrete = constants.%Point.as.Z.impl.Zero]
// CHECK:STDOUT: %Point.as.Z.impl.Zero.call: init %empty_tuple.type = call %impl.elem0()
// CHECK:STDOUT: %.loc29_5.1: %empty_struct_type = struct_literal ()
// CHECK:STDOUT: %Point.ref.loc29: type = name_ref Point, file.%Point.decl [concrete = constants.%Point]
// CHECK:STDOUT: %.loc29_5.2: ref %Point = temporary_storage
// CHECK:STDOUT: %.loc29_5.3: init %Point = class_init (), %.loc29_5.2 [concrete = constants.%Point.val]
// CHECK:STDOUT: %.loc29_5.4: ref %Point = temporary %.loc29_5.2, %.loc29_5.3
// CHECK:STDOUT: %.loc29_7.1: ref %Point = converted %.loc29_5.1, %.loc29_5.4
// CHECK:STDOUT: %Z.ref.loc29: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: %Method.ref: %Z.assoc_type = name_ref Method, @Z.%assoc1 [concrete = constants.%assoc1]
// CHECK:STDOUT: %impl.elem1: %.142 = impl_witness_access constants.%Z.impl_witness, element1 [concrete = constants.%Point.as.Z.impl.Method]
// CHECK:STDOUT: %bound_method.loc29_16: <bound method> = bound_method %.loc29_7.1, %impl.elem1
// CHECK:STDOUT: %.loc29_7.2: %Point = bind_value %.loc29_7.1
// CHECK:STDOUT: %Point.as.Z.impl.Method.call: init %empty_tuple.type = call %bound_method.loc29_16(%.loc29_7.2)
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.bound: <bound method> = bound_method %.loc29_5.4, constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.3aa
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn: <specific function> = specific_function constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.3aa, @DestroyT.binding.as_type.as.Destroy.impl.Op(constants.%facet_value) [concrete = constants.%DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc29_5: <bound method> = bound_method %.loc29_5.4, %DestroyT.binding.as_type.as.Destroy.impl.Op.specific_fn
// CHECK:STDOUT: %addr: %ptr.536 = addr_of %.loc29_5.4
// CHECK:STDOUT: %DestroyT.binding.as_type.as.Destroy.impl.Op.call: init %empty_tuple.type = call %bound_method.loc29_5(%addr)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Z.Zero(constants.%Self.1d7) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Z.Method(constants.%Self.1d7) {
// CHECK:STDOUT: %Self => constants.%Self.1d7
// CHECK:STDOUT: %Self.binding.as_type => constants.%Self.binding.as_type.c3d
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.5d1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @<error>.as.Z.impl(constants.%Self.1d7) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Self => constants.%Self.1d7
// CHECK:STDOUT: %<error>.as.Z.impl.Zero.type => constants.%<error>.as.Z.impl.Zero.type
// CHECK:STDOUT: %<error>.as.Z.impl.Zero => constants.%<error>.as.Z.impl.Zero
// CHECK:STDOUT: %<error>.as.Z.impl.Method.type => constants.%<error>.as.Z.impl.Method.type
// CHECK:STDOUT: %<error>.as.Z.impl.Method => constants.%<error>.as.Z.impl.Method
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @<error>.as.Z.impl.Zero(constants.%Self.1d7) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @<error>.as.Z.impl.Method(constants.%Self.1d7) {
// CHECK:STDOUT: %Self => constants.%Self.1d7
// CHECK:STDOUT: %Self.binding.as_type => constants.%Self.binding.as_type.c3d
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.5d1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Z.Zero(constants.%Z.facet) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Z.Method(constants.%Z.facet) {
// CHECK:STDOUT: %Self => constants.%Z.facet
// CHECK:STDOUT: %Self.binding.as_type => constants.%Point
// CHECK:STDOUT: %pattern_type => constants.%pattern_type.35b
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_impl_as_other_interface.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %A.type: type = facet_type <@A> [concrete]
// CHECK:STDOUT: %Self.0dd: %A.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %A.B.type: type = fn_type @A.B [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %A.B: %A.B.type = struct_value () [concrete]
// CHECK:STDOUT: %A.assoc_type: type = assoc_entity_type @A [concrete]
// CHECK:STDOUT: %assoc0: %A.assoc_type = assoc_entity element0, @A.%A.B.decl [concrete]
// CHECK:STDOUT: %C.type: type = facet_type <@C> [concrete]
// CHECK:STDOUT: %Self.604: %C.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %X: type = class_type @X [concrete]
// CHECK:STDOUT: %A.impl_witness: <witness> = impl_witness @X.%A.impl_witness_table [concrete]
// CHECK:STDOUT: %X.as.A.impl.B.type: type = fn_type @X.as.A.impl.B [concrete]
// CHECK:STDOUT: %X.as.A.impl.B: %X.as.A.impl.B.type = struct_value () [concrete]
// CHECK:STDOUT: %A.facet: %A.type = facet_value %X, (%A.impl_witness) [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: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .A = %A.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: .X = %X.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %A.decl: type = interface_decl @A [concrete = constants.%A.type] {} {}
// CHECK:STDOUT: %C.decl: type = interface_decl @C [concrete = constants.%C.type] {} {}
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
// CHECK:STDOUT: %X.decl: type = class_decl @X [concrete = constants.%X] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @A {
// CHECK:STDOUT: %Self: %A.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.0dd]
// CHECK:STDOUT: %A.B.decl: %A.B.type = fn_decl @A.B [concrete = constants.%A.B] {} {}
// CHECK:STDOUT: %assoc0: %A.assoc_type = assoc_entity element0, %A.B.decl [concrete = constants.%assoc0]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .B = %assoc0
// CHECK:STDOUT: witness = (%A.B.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @C {
// CHECK:STDOUT: %Self: %C.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.604]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.A.impl: %Self.ref as %A.ref {
// CHECK:STDOUT: impl_decl @<error>.as.C.impl [concrete] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %X.as.A.impl.B.decl: %X.as.A.impl.B.type = fn_decl @X.as.A.impl.B [concrete = constants.%X.as.A.impl.B] {} {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .C = <poisoned>
// CHECK:STDOUT: .B = %X.as.A.impl.B.decl
// CHECK:STDOUT: .G = <poisoned>
// CHECK:STDOUT: witness = @X.%A.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @<error>.as.C.impl: <error> as %C.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @X {
// CHECK:STDOUT: impl_decl @X.as.A.impl [concrete] {} {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%X [concrete = constants.%X]
// CHECK:STDOUT: %A.ref: type = name_ref A, file.%A.decl [concrete = constants.%A.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %A.impl_witness_table = impl_witness_table (@X.as.A.impl.%X.as.A.impl.B.decl), @X.as.A.impl [concrete]
// CHECK:STDOUT: %A.impl_witness: <witness> = impl_witness %A.impl_witness_table [concrete = constants.%A.impl_witness]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%X
// CHECK:STDOUT: .A = <poisoned>
// CHECK:STDOUT: .C = <poisoned>
// CHECK:STDOUT: .G = <poisoned>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @A.B(@A.%Self: %A.type) {
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @X.as.A.impl.B() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %G.ref: %G.type = name_ref G, file.%G.decl [concrete = constants.%G]
// CHECK:STDOUT: %G.call: init %empty_tuple.type = call %G.ref()
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A.B(constants.%Self.0dd) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @A.B(constants.%A.facet) {}
// CHECK:STDOUT:
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