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carbon-lang/toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon
T
Dana JansensandJon Ross-Perkins 19d59b2a8d Reduce use of the prelude in tests (#5683) 
Remove use of i32/bool when a builtin type or test-define class type can
work. Make `Sub` user-defines in a test that is testing builtin
functions and not trying to test the prelude, in the same way that it
defines its own Negate. Reduce use of the + operator when it isn't
contributing to the test's coverage, since the + operator needs the full
prelude. Remove use of Core.Print when it's not required for the test.

Move `deduce_nested_facet_value.carbon` to its own file since it uses
TypeAnd, and the rest of deduce.carbon does not, but uses i32. This
means they can each use a different min-prelude.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2025-06-17 17:58:59 +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/facet_types.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/function/generic/deduce_nested_facet_value.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/generic/deduce_nested_facet_value.carbon
// --- deduce_nested_facet_value.carbon
library "[[@TEST_NAME]]";
interface Y {}
interface W {}
// DD implements both Y and W.
class DD {}
impl DD as Y {}
impl DD as W {}
// CC requires D to implement Y.
class CC(D:! Y) {}
interface Z {}
// The `D` interface provides `Y` but not `W`, so we need to see that the
// parameter to `CC` is `DD` which provides `Y & W`, not just a FacetValue
// abstractly providing `Y.
impl forall [E:! Y & W] CC(E) as Z {}
fn F() {
(CC(DD)) as Z;
}
// CHECK:STDOUT: --- deduce_nested_facet_value.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Y.type: type = facet_type <@Y> [concrete]
// CHECK:STDOUT: %Self.b29: %Y.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %W.type: type = facet_type <@W> [concrete]
// CHECK:STDOUT: %Self.f12: %W.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %DD: type = class_type @DD [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %Y.impl_witness: <witness> = impl_witness file.%Y.impl_witness_table [concrete]
// CHECK:STDOUT: %W.impl_witness: <witness> = impl_witness file.%W.impl_witness_table [concrete]
// CHECK:STDOUT: %D: %Y.type = bind_symbolic_name D, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.667: type = pattern_type %Y.type [concrete]
// CHECK:STDOUT: %CC.type: type = generic_class_type @CC [concrete]
// CHECK:STDOUT: %CC.generic: %CC.type = struct_value () [concrete]
// CHECK:STDOUT: %CC.3ba: type = class_type @CC, @CC(%D) [symbolic]
// CHECK:STDOUT: %Z.type: type = facet_type <@Z> [concrete]
// CHECK:STDOUT: %Self.6e6: %Z.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %BitAndWith.type.f2e: type = generic_interface_type @BitAndWith [concrete]
// CHECK:STDOUT: %BitAndWith.generic: %BitAndWith.type.f2e = struct_value () [concrete]
// CHECK:STDOUT: %BitAndWith.type.e8c: type = facet_type <@BitAndWith, @BitAndWith(type)> [concrete]
// CHECK:STDOUT: %Op.type.9a3: type = fn_type @Op.1, @BitAndWith(type) [concrete]
// CHECK:STDOUT: %BitAndWith.impl_witness: <witness> = impl_witness imports.%BitAndWith.impl_witness_table [concrete]
// CHECK:STDOUT: %BitAndWith.facet: %BitAndWith.type.e8c = facet_value type, (%BitAndWith.impl_witness) [concrete]
// CHECK:STDOUT: %.2af: type = fn_type_with_self_type %Op.type.9a3, %BitAndWith.facet [concrete]
// CHECK:STDOUT: %Op.type.1cc: type = fn_type @Op.2 [concrete]
// CHECK:STDOUT: %Op.ff4: %Op.type.1cc = struct_value () [concrete]
// CHECK:STDOUT: %Op.bound: <bound method> = bound_method %Y.type, %Op.ff4 [concrete]
// CHECK:STDOUT: %facet_type: type = facet_type <@Y & @W> [concrete]
// CHECK:STDOUT: %E: %facet_type = bind_symbolic_name E, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.122: type = pattern_type %facet_type [concrete]
// CHECK:STDOUT: %Y.lookup_impl_witness: <witness> = lookup_impl_witness %E, @Y [symbolic]
// CHECK:STDOUT: %E.as_type: type = facet_access_type %E [symbolic]
// CHECK:STDOUT: %Y.facet.7ec: %Y.type = facet_value %E.as_type, (%Y.lookup_impl_witness) [symbolic]
// CHECK:STDOUT: %CC.d02: type = class_type @CC, @CC(%Y.facet.7ec) [symbolic]
// CHECK:STDOUT: %Z.impl_witness.741: <witness> = impl_witness file.%Z.impl_witness_table, @impl.562(%E) [symbolic]
// CHECK:STDOUT: %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT: %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: %Y.facet.268: %Y.type = facet_value %DD, (%Y.impl_witness) [concrete]
// CHECK:STDOUT: %CC.7bf: type = class_type @CC, @CC(%Y.facet.268) [concrete]
// CHECK:STDOUT: %facet_value: %facet_type = facet_value %DD, (%Y.impl_witness, %W.impl_witness) [concrete]
// CHECK:STDOUT: %Z.impl_witness.3b0: <witness> = impl_witness file.%Z.impl_witness_table, @impl.562(%facet_value) [concrete]
// CHECK:STDOUT: %Z.facet: %Z.type = facet_value %CC.7bf, (%Z.impl_witness.3b0) [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .BitAndWith = %Core.BitAndWith
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.BitAndWith: %BitAndWith.type.f2e = import_ref Core//prelude, BitAndWith, loaded [concrete = constants.%BitAndWith.generic]
// CHECK:STDOUT: %Core.import_ref.012: %Op.type.1cc = import_ref Core//prelude, loc13_42, loaded [concrete = constants.%Op.ff4]
// CHECK:STDOUT: %BitAndWith.impl_witness_table = impl_witness_table (%Core.import_ref.012), @impl.865 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Y = %Y.decl
// CHECK:STDOUT: .W = %W.decl
// CHECK:STDOUT: .DD = %DD.decl
// CHECK:STDOUT: .CC = %CC.decl
// CHECK:STDOUT: .Z = %Z.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Y.decl: type = interface_decl @Y [concrete = constants.%Y.type] {} {}
// CHECK:STDOUT: %W.decl: type = interface_decl @W [concrete = constants.%W.type] {} {}
// CHECK:STDOUT: %DD.decl: type = class_decl @DD [concrete = constants.%DD] {} {}
// CHECK:STDOUT: impl_decl @impl.3d7 [concrete] {} {
// CHECK:STDOUT: %DD.ref: type = name_ref DD, file.%DD.decl [concrete = constants.%DD]
// CHECK:STDOUT: %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Y.impl_witness_table = impl_witness_table (), @impl.3d7 [concrete]
// CHECK:STDOUT: %Y.impl_witness: <witness> = impl_witness %Y.impl_witness_table [concrete = constants.%Y.impl_witness]
// CHECK:STDOUT: impl_decl @impl.e11 [concrete] {} {
// CHECK:STDOUT: %DD.ref: type = name_ref DD, file.%DD.decl [concrete = constants.%DD]
// CHECK:STDOUT: %W.ref: type = name_ref W, file.%W.decl [concrete = constants.%W.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %W.impl_witness_table = impl_witness_table (), @impl.e11 [concrete]
// CHECK:STDOUT: %W.impl_witness: <witness> = impl_witness %W.impl_witness_table [concrete = constants.%W.impl_witness]
// CHECK:STDOUT: %CC.decl: %CC.type = class_decl @CC [concrete = constants.%CC.generic] {
// CHECK:STDOUT: %D.patt: %pattern_type.667 = symbolic_binding_pattern D, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y.type]
// CHECK:STDOUT: %D.loc12_10.1: %Y.type = bind_symbolic_name D, 0 [symbolic = %D.loc12_10.2 (constants.%D)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Z.decl: type = interface_decl @Z [concrete = constants.%Z.type] {} {}
// CHECK:STDOUT: impl_decl @impl.562 [concrete] {
// CHECK:STDOUT: %E.patt: %pattern_type.122 = symbolic_binding_pattern E, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %CC.ref: %CC.type = name_ref CC, file.%CC.decl [concrete = constants.%CC.generic]
// CHECK:STDOUT: %E.ref: %facet_type = name_ref E, %E.loc19_14.1 [symbolic = %E.loc19_14.2 (constants.%E)]
// CHECK:STDOUT: %E.as_type.loc19_29.1: type = facet_access_type constants.%E [symbolic = %E.as_type.loc19_29.2 (constants.%E.as_type)]
// CHECK:STDOUT: %Y.facet.loc19_29.1: %Y.type = facet_value %E.as_type.loc19_29.1, (constants.%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
// CHECK:STDOUT: %.loc19_29: %Y.type = converted %E.ref, %Y.facet.loc19_29.1 [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
// CHECK:STDOUT: %CC.loc19_29.1: type = class_type @CC, @CC(constants.%Y.facet.7ec) [symbolic = %CC.loc19_29.2 (constants.%CC.d02)]
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: %.loc19_20.1: type = splice_block %.loc19_20.3 [concrete = constants.%facet_type] {
// CHECK:STDOUT: %Y.ref: type = name_ref Y, file.%Y.decl [concrete = constants.%Y.type]
// CHECK:STDOUT: %W.ref: type = name_ref W, file.%W.decl [concrete = constants.%W.type]
// CHECK:STDOUT: %impl.elem0: %.2af = impl_witness_access constants.%BitAndWith.impl_witness, element0 [concrete = constants.%Op.ff4]
// CHECK:STDOUT: %bound_method: <bound method> = bound_method %Y.ref, %impl.elem0 [concrete = constants.%Op.bound]
// CHECK:STDOUT: %type.and: init type = call %bound_method(%Y.ref, %W.ref) [concrete = constants.%facet_type]
// CHECK:STDOUT: %.loc19_20.2: type = value_of_initializer %type.and [concrete = constants.%facet_type]
// CHECK:STDOUT: %.loc19_20.3: type = converted %type.and, %.loc19_20.2 [concrete = constants.%facet_type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %E.loc19_14.1: %facet_type = bind_symbolic_name E, 0 [symbolic = %E.loc19_14.2 (constants.%E)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Z.impl_witness_table = impl_witness_table (), @impl.562 [concrete]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness %Z.impl_witness_table, @impl.562(constants.%E) [symbolic = @impl.562.%Z.impl_witness (constants.%Z.impl_witness.741)]
// CHECK:STDOUT: %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Y {
// CHECK:STDOUT: %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.b29]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @W {
// CHECK:STDOUT: %Self: %W.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.f12]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Z {
// CHECK:STDOUT: %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.6e6]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl.3d7: %DD.ref as %Y.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%Y.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl.e11: %DD.ref as %W.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%W.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic impl @impl.562(%E.loc19_14.1: %facet_type) {
// CHECK:STDOUT: %E.loc19_14.2: %facet_type = bind_symbolic_name E, 0 [symbolic = %E.loc19_14.2 (constants.%E)]
// CHECK:STDOUT: %Y.lookup_impl_witness: <witness> = lookup_impl_witness %E.loc19_14.2, @Y [symbolic = %Y.lookup_impl_witness (constants.%Y.lookup_impl_witness)]
// CHECK:STDOUT: %E.as_type.loc19_29.2: type = facet_access_type %E.loc19_14.2 [symbolic = %E.as_type.loc19_29.2 (constants.%E.as_type)]
// CHECK:STDOUT: %Y.facet.loc19_29.2: %Y.type = facet_value %E.as_type.loc19_29.2, (%Y.lookup_impl_witness) [symbolic = %Y.facet.loc19_29.2 (constants.%Y.facet.7ec)]
// CHECK:STDOUT: %CC.loc19_29.2: type = class_type @CC, @CC(%Y.facet.loc19_29.2) [symbolic = %CC.loc19_29.2 (constants.%CC.d02)]
// CHECK:STDOUT: %Z.impl_witness: <witness> = impl_witness file.%Z.impl_witness_table, @impl.562(%E.loc19_14.2) [symbolic = %Z.impl_witness (constants.%Z.impl_witness.741)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: impl: %CC.loc19_29.1 as %Z.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%Z.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @DD {
// 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.%DD
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @CC(%D.loc12_10.1: %Y.type) {
// CHECK:STDOUT: %D.loc12_10.2: %Y.type = bind_symbolic_name D, 0 [symbolic = %D.loc12_10.2 (constants.%D)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// 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.%CC.3ba
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %CC.ref: %CC.type = name_ref CC, file.%CC.decl [concrete = constants.%CC.generic]
// CHECK:STDOUT: %DD.ref: type = name_ref DD, file.%DD.decl [concrete = constants.%DD]
// CHECK:STDOUT: %Y.facet: %Y.type = facet_value constants.%DD, (constants.%Y.impl_witness) [concrete = constants.%Y.facet.268]
// CHECK:STDOUT: %.loc22_9: %Y.type = converted %DD.ref, %Y.facet [concrete = constants.%Y.facet.268]
// CHECK:STDOUT: %CC: type = class_type @CC, @CC(constants.%Y.facet.268) [concrete = constants.%CC.7bf]
// CHECK:STDOUT: %Z.ref: type = name_ref Z, file.%Z.decl [concrete = constants.%Z.type]
// CHECK:STDOUT: %facet_value: %facet_type = facet_value constants.%DD, (constants.%Y.impl_witness, constants.%W.impl_witness) [concrete = constants.%facet_value]
// CHECK:STDOUT: %.loc22_12.1: %facet_type = converted constants.%DD, %facet_value [concrete = constants.%facet_value]
// CHECK:STDOUT: %Z.facet: %Z.type = facet_value constants.%CC.7bf, (constants.%Z.impl_witness.3b0) [concrete = constants.%Z.facet]
// CHECK:STDOUT: %.loc22_12.2: %Z.type = converted %CC, %Z.facet [concrete = constants.%Z.facet]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @CC(constants.%D) {
// CHECK:STDOUT: %D.loc12_10.2 => constants.%D
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @CC(constants.%Y.facet.7ec) {
// CHECK:STDOUT: %D.loc12_10.2 => constants.%Y.facet.7ec
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @impl.562(constants.%E) {
// CHECK:STDOUT: %E.loc19_14.2 => constants.%E
// CHECK:STDOUT: %Y.lookup_impl_witness => constants.%Y.lookup_impl_witness
// CHECK:STDOUT: %E.as_type.loc19_29.2 => constants.%E.as_type
// CHECK:STDOUT: %Y.facet.loc19_29.2 => constants.%Y.facet.7ec
// CHECK:STDOUT: %CC.loc19_29.2 => constants.%CC.d02
// CHECK:STDOUT: %Z.impl_witness => constants.%Z.impl_witness.741
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @CC(constants.%Y.facet.268) {
// CHECK:STDOUT: %D.loc12_10.2 => constants.%Y.facet.268
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @impl.562(constants.%facet_value) {
// CHECK:STDOUT: %E.loc19_14.2 => constants.%facet_value
// CHECK:STDOUT: %Y.lookup_impl_witness => constants.%Y.impl_witness
// CHECK:STDOUT: %E.as_type.loc19_29.2 => constants.%DD
// CHECK:STDOUT: %Y.facet.loc19_29.2 => constants.%Y.facet.268
// CHECK:STDOUT: %CC.loc19_29.2 => constants.%CC.7bf
// CHECK:STDOUT: %Z.impl_witness => constants.%Z.impl_witness.3b0
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: }
// CHECK:STDOUT:
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