carbon-lang/toolchain/check/testdata/facet/convert_interface.carbon

// 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
//
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/convert.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/facet/convert_interface.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/facet/convert_interface.carbon

interface Eats {}
interface Animal {}

// TODO: This may be rejected in the future.
// https://github.com/carbon-language/carbon-lang/issues/4853
impl Animal as Eats {}

fn F(e: Eats) {}
fn G() { F(Animal); }

// CHECK:STDOUT: --- convert_interface.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %Eats.type: type = facet_type <@Eats> [concrete]
// CHECK:STDOUT:   %Self.267: %Eats.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT:   %Animal.type: type = facet_type <@Animal> [concrete]
// CHECK:STDOUT:   %Self.84c: %Animal.type = symbolic_binding Self, 0 [symbolic]
// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness file.%Eats.impl_witness_table [concrete]
// CHECK:STDOUT:   %pattern_type: type = pattern_type %Eats.type [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT:   %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT:   %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %Animal.type, (%Eats.impl_witness) [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:     .Eats = %Eats.decl
// CHECK:STDOUT:     .Animal = %Animal.decl
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:     .G = %G.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %Eats.decl: type = interface_decl @Eats [concrete = constants.%Eats.type] {} {}
// CHECK:STDOUT:   %Animal.decl: type = interface_decl @Animal [concrete = constants.%Animal.type] {} {}
// CHECK:STDOUT:   impl_decl @Animal.type.as.Eats.impl [concrete] {} {
// CHECK:STDOUT:     %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
// CHECK:STDOUT:     %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Eats.impl_witness_table = impl_witness_table (), @Animal.type.as.Eats.impl [concrete]
// CHECK:STDOUT:   %Eats.impl_witness: <witness> = impl_witness %Eats.impl_witness_table [concrete = constants.%Eats.impl_witness]
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %e.patt: %pattern_type = value_binding_pattern e [concrete]
// CHECK:STDOUT:     %e.param_patt: %pattern_type = value_param_pattern %e.patt, call_param0 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %e.param: %Eats.type = value_param call_param0
// CHECK:STDOUT:     %Eats.ref: type = name_ref Eats, file.%Eats.decl [concrete = constants.%Eats.type]
// CHECK:STDOUT:     %e: %Eats.type = value_binding e, %e.param
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Eats {
// CHECK:STDOUT:   %Self: %Eats.type = symbolic_binding Self, 0 [symbolic = constants.%Self.267]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = %Self
// CHECK:STDOUT:   witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Animal {
// CHECK:STDOUT:   %Self: %Animal.type = symbolic_binding Self, 0 [symbolic = constants.%Self.84c]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   .Self = %Self
// CHECK:STDOUT:   witness = ()
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @Animal.type.as.Eats.impl: %Animal.ref as %Eats.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT:   witness = file.%Eats.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%e.param: %Eats.type) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
// CHECK:STDOUT:   %Animal.ref: type = name_ref Animal, file.%Animal.decl [concrete = constants.%Animal.type]
// CHECK:STDOUT:   %Eats.facet: %Eats.type = facet_value %Animal.ref, (constants.%Eats.impl_witness) [concrete = constants.%Eats.facet]
// CHECK:STDOUT:   %.loc23: %Eats.type = converted %Animal.ref, %Eats.facet [concrete = constants.%Eats.facet]
// CHECK:STDOUT:   %F.call: init %empty_tuple.type = call %F.ref(%.loc23)
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT: